# Hirschsprung Disease: Diagnosis to Long-Term Management — GCMD Library living collection

Updated: n/a · 15 episodes · 312 cited statements

## Episodes
### Foundations
- [The Colorectal Quiz Episode 21: The History of Hirschsprung Disease](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818) — video · 15:20 · [machine version](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818.md)
- [The Colorectal Quiz Episode 21: The History of Hirschsprung Disease](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13861) — podcast · 15:56 · [machine version](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13861.md)
- [Hirschsprung](https://library.globalcastmd.com/watch/hirschsprung-13870) — podcast · 22:45 · [machine version](https://library.globalcastmd.com/watch/hirschsprung-13870.md)
- [Hirschsprung Disease – PediaCast 287](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877) — podcast · 38:55 · [machine version](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877.md)

### Surgical Management
- [The Colorectal Quiz Episode 4: Classic Hirschsprung disease - Surgical Technique](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888) — video · 19:28 · [machine version](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888.md)
- [The Colorectal Quiz Episode 4](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-13864) — podcast · 19:28 · [machine version](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-13864.md)
- [Colorectal Quiz: Episode 46](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848) — podcast · 29:59 · [machine version](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848.md)
- [Colorectal Quiz: Episode 46 -  Hirschsprung's Disease](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821) — video · 29:52 · [machine version](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821.md)
- [The Colorectal Quiz Episode 5: Proximal Hirschsprung Disease Surgical Technique](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-5-proximal-hirschsprung-disease-surgical-technique-6847) — video · 14:37 · [machine version](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-5-proximal-hirschsprung-disease-surgical-technique-6847.md)
- [Evaluation and Management of Total Colonic Hirschsprung Disease: A Comprehensive Review From the American Pediatric Surgical Association (APSA) Hirschsprung Disease Interest Group](https://library.globalcastmd.com/watch/evaluation-and-management-of-total-colonic-hirschsprung-disease-a-comprehensive-review-from-the-american-pediatric-surgical-association-hirschsprung-disease-interest-group-13762) — article · [machine version](https://library.globalcastmd.com/watch/evaluation-and-management-of-total-colonic-hirschsprung-disease-a-comprehensive-review-from-the-american-pediatric-surgical-association-hirschsprung-disease-interest-group-13762.md)
- [Transanal-only Swenson-like pull-through for late diagnosed Hirschsprung disease](https://library.globalcastmd.com/watch/transanal-only-swenson-like-pull-through-for-late-diagnosed-hirschsprung-disease-13806) — article · [machine version](https://library.globalcastmd.com/watch/transanal-only-swenson-like-pull-through-for-late-diagnosed-hirschsprung-disease-13806.md)
- [Colorectal Quiz: Episode 44 - HD Frozen Section](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823) — video · 18:17 · [machine version](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823.md)

### Postoperative Complications
- [Reconstructing the anal sphincters to reverse iatrogenic overstretching following a pull-through for Hirschsprung disease. One-year outcomes](https://library.globalcastmd.com/watch/reconstructing-the-anal-sphincters-to-reverse-iatrogenic-overstretching-following-a-pull-through-for-hirschsprung-disease-one-year-outcomes-6281) — article · [machine version](https://library.globalcastmd.com/watch/reconstructing-the-anal-sphincters-to-reverse-iatrogenic-overstretching-following-a-pull-through-for-hirschsprung-disease-one-year-outcomes-6281.md)
- [A technique to reconstruct the anal sphincters following iatrogenic stretching related to a pull-through for Hirschsprung disease](https://library.globalcastmd.com/watch/a-technique-to-reconstruct-the-anal-sphincters-following-iatrogenic-stretching-related-to-a-pull-through-for-hirschsprung-disease-13800) — article · [machine version](https://library.globalcastmd.com/watch/a-technique-to-reconstruct-the-anal-sphincters-following-iatrogenic-stretching-related-to-a-pull-through-for-hirschsprung-disease-13800.md)
- [Hirschsprung Disease Part 2](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875) — podcast · 44:44 · [machine version](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875.md)

## Chapters
- [0:00](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-5-proximal-hirschsprung-disease-surgical-technique-6847?t=0) Introduction and Case Setup (Ep 9)
- [2:37](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-5-proximal-hirschsprung-disease-surgical-technique-6847?t=157) Intraoperative Decision-Making and Diversion Strategy (Ep 9)
- [7:29](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-5-proximal-hirschsprung-disease-surgical-technique-6847?t=449) Threshold for Primary Pull-Through and Colon Preservation (Ep 9)
- [10:42](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-5-proximal-hirschsprung-disease-surgical-technique-6847?t=642) Definitive Pull-Through Technique for Proximal Disease (Ep 9)
- [13:33](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-5-proximal-hirschsprung-disease-surgical-technique-6847?t=813) Summary and Closing (Ep 9)
- [0:00](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=0) Introduction and case recap (Ep 5)
- [2:31](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=151) Preoperative preparation and approach selection (Ep 5)
- [5:40](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=340) Laparoscopic port placement and biopsy technique (Ep 5)
- [9:00](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=540) Frozen section requirements and mesenteric dissection (Ep 5)
- [12:30](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=750) Transanal dissection technique (Ep 5)
- [15:00](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=900) Pull-through technique and anastomosis (Ep 5)
- [17:20](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=1040) Closing remarks and preview (Ep 5)
- [0:00](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=0) Introduction and Overview (Ep 1)
- [1:00](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=60) Hirschsprung, Swenson, and the Development of Early Techniques (Ep 1)
- [4:06](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=246) Duhamel, Rabine, and Boley (Ep 1)
- [5:05](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=305) Personal Connections to Dr. Boley (Ep 1)
- [8:34](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=514) Henrys and Martin: Primary Pull-Through and Ulcerative Colitis (Ep 1)
- [11:15](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=675) Modern Era: Noblet, Jorgeson, Langer, de la Torre, and Teitelbaum (Ep 1)
- [14:47](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=887) Closing (Ep 1)
- [0:00](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=0) Case Presentation: Septic Neonate with Trisomy 21 (Ep 8)
- [4:40](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=280) Initial Management: Irrigations and Medical Therapy (Ep 8)
- [8:53](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=533) Diagnostic Confirmation: Contrast Enema and Biopsy (Ep 8)
- [12:40](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=760) Surgical Decision-Making: Timing and Mapping Strategy (Ep 8)
- [19:57](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=1197) Ileostomy versus Colostomy Decision (Ep 8)
- [24:08](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=1448) Enterocolitis Prevention and Botox (Ep 8)
- [0:08](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823?t=8) Introduction and Guest Presentation (Ep 12)
- [2:16](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823?t=136) Case Presentation and Initial Surgical Strategy (Ep 12)
- [4:17](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823?t=257) Laparoscopic-Assisted Pull-Through Technique (Ep 12)
- [7:43](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823?t=463) Pathology Results and Decision to Re-Operate (Ep 12)
- [10:00](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823?t=600) Early Re-Operation Strategy and Rationale (Ep 12)
- [15:18](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823?t=918) Surgical Lessons and Closing (Ep 12)
- [0:00](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=0) Case Presentation: Two-Day-Old with Trisomy 21 and Abdominal Distension (Ep 7)
- [4:10](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=250) Initial Management Strategy and Perforation Patterns (Ep 7)
- [7:17](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=437) Irrigation Technique and Enterocolitis Pathophysiology (Ep 7)
- [9:39](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=579) Diagnostic Confirmation: Contrast Enema and Rectal Biopsy (Ep 7)
- [12:41](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=761) Timing of Definitive Surgery and Leveling Biopsy Strategy (Ep 7)
- [18:44](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=1124) Ostomy Decision-Making: Ileostomy versus Colostomy (Ep 7)
- [24:15](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=1455) Enterocolitis Prevention: Botox and Patient Education (Ep 7)
- [0:00](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13861?t=0) Introduction and Episode Setup (Ep 2)
- [0:26](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13861?t=26) Early Pioneers: Hirschsprung, Swenson, Yancey, Suave, Duhamel, Rabine, and Boley (Ep 2)

## Statements
Every statement is attributed, typed, and timestamped; the link is the citation.
- The most important reason to use laparoscopy for Hirschsprung pull-through is to achieve a good deep laparoscopic dissection into the pelvis, minimizing transanal work and avoiding overstretching of the sphincters. — Marc Levitt (clinical) [Ep 5 · 6:01](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=361)
- Overstretching of the sphincters is a significant morbidity associated with Hirschsprung disease surgery that needs to be avoided, and laparoscopy helps prevent this. — Marc Levitt (clinical) [Ep 5 · 6:11](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=371)
- With proper laparoscopic dissection, the transanal dissection should take way under 1 hour, especially in a primary pull-through. — Todd Ponsky (clinical) [Ep 5 · 6:37](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=397)
- For surgeons without laparoscopy available, an umbilical approach as described by Jack Langer can accomplish significant work. — Marc Levitt (clinical) [Ep 5 · 6:48](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=408)
- An anchor port at the umbilicus is useful because it has a low profile with minimal instrumentation in the abdomen and an 8 millimeter fascial incision providing more room for biopsy work. — Aaron Garrison (clinical) [Ep 5 · 7:09](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=429)
- Full thickness biopsy should be cut as a square cube with the seromuscular side equal to the mucosal side. — Marc Levitt (clinical) [Ep 5 · 7:37](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=457)
- Port setup for laparoscopic Hirschsprung pull-through includes umbilical port, right lower and upper quadrant ports, with camera switched to right upper quadrant and working through umbilical and right lower quadrant ports. — Andrea Badillo (clinical) [Ep 5 · 8:17](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=497)
- An additional assistant port on the left side over the sigmoid can make dissection easier and improve exposure. — Aaron Garrison (clinical) [Ep 5 · 8:42](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=522)
- Surgeons should wait for frozen section results before taking mesentery, though mobilization of the splenic flexure can be done to ensure adequate reach. — Aaron Garrison (clinical) [Ep 5 · 9:30](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=570)
- Required pathology findings for frozen section include ganglion cells and nerves less than 40 microns to ensure not pulling through a segment with hypertrophied nerves. — Andrea Badillo (clinical) [Ep 5 · 10:08](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=608)
- The biopsy must include submucosa because ganglion cells may be found in the seromuscular layer while hypertrophic nerves are in the submucosal layer. — Marc Levitt (clinical) [Ep 5 · 10:20](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=620)
- For mesenteric dissection, surgeons should stay just off the bowel wall, not deep in the mesentery, as this plane tends to be less bloody. — Aaron Garrison (clinical) [Ep 5 · 11:13](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=673)
- In the old Swenson technique done through the abdomen, patients were non-infrequently incontinent and had urinary retention, believed to be related to too wide a dissection of the distal rectum and injury to the nerve erigentis. — Marc Levitt (clinical) [Ep 5 · 11:52](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=712)
- Surgeons must be very careful to preserve the arcade along the left colon and sigmoid colon to get enough distance to reach the pelvis. — Todd Ponsky (clinical) [Ep 5 · 12:26](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=746)
- For transanal dissection, the key principle is to do no harm to the dentate line or sphincters. — Andrea Badillo (clinical) [Ep 5 · 13:04](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=784)
- The transanal incision should be made about 1 centimeter above the dentate line into the anal canal. — Andrea Badillo (clinical) [Ep 5 · 13:10](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=790)
- Lone Star retractor pins are placed in three progressive positions: first at the skin to identify the dentate line, then advanced to cover the dentate line, and finally at the mucosal opening where dissection begins. — Andrea Badillo (clinical) [Ep 5 · 13:24](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=804)
- The preferred technique is Swenson full thickness dissection looking for the areolar plane, which is basically a bloodless plane. — Marc Levitt (opinion) [Ep 5 · 14:07](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=847)
- Submucosal dissection (Suave technique) is not preferred because it leaves a cuff, though surgeons like Jack Langer now do about a 1 centimeter cuff and Luis de la Torre has switched to Swenson. — Marc Levitt (clinical) [Ep 5 · 14:21](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=861)
- If a cuff is created, it must be split and should be very short. — Todd Ponsky (clinical) [Ep 5 · 14:49](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=889)
- For standard rectosigmoid cases, the patient can remain supine with legs wrapped and fastened to the ether screen with a sterile bump underneath, avoiding the need to flip the patient prone. — Aaron Garrison (clinical) [Ep 5 · 15:03](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=903)
- When the transanal dissection meets the laparoscopic dissection, there may be a gush of fluid indicating entry into the peritoneal space. — Andrea Badillo (clinical) [Ep 5 · 15:38](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=938)
- The bowel should be divided approximately 5 centimeters above the biopsy site to provide a safe margin. — Andrea Badillo (clinical) [Ep 5 · 16:06](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=966)
- Two tacking sutures should be placed from the serosa to the pelvic side wall at the 3 and 6 o'clock positions to anchor the bowel in place, though this does not technically count as a two-layer anastomosis. — Aaron Garrison (clinical) [Ep 5 · 16:30](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=990)
- The anastomosis uses 4-0 vicryl sutures placed at 12, 3, and 6 o'clock positions with in-between sutures placed before transecting the rest of the bowel. — Aaron Garrison (clinical) [Ep 5 · 16:46](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=1006)
- Maternal magnesium sulfate or other tocolytic medications can cause significant ileus in the newborn that mimics Hirschsprung's disease. — Marc Levitt (clinical) [Ep 3 · 0:55](https://library.globalcastmd.com/watch/hirschsprung-13870?t=55)
- Hypothyroidism and opiate exposure (maternal addiction or overdose transmitted to baby) can present with abdominal distension and delayed meconium passage mimicking Hirschsprung's disease. — Marc Levitt (clinical) [Ep 3 · 0:55](https://library.globalcastmd.com/watch/hirschsprung-13870?t=55)
- Milk protein allergy in a fed baby can mimic Hirschsprung's disease on x-ray, and irrigations help even when it is not Hirschsprung's. — Marc Levitt (clinical) [Ep 3 · 0:55](https://library.globalcastmd.com/watch/hirschsprung-13870?t=55)
- Ten percent of patients with meconium plug have Hirschsprung's disease, so suction rectal biopsy should be performed even after successful plug passage. — Marc Levitt (epidemiological) [Ep 3 · 2:00](https://library.globalcastmd.com/watch/hirschsprung-13870?t=120)
- After meconium plug passage, the contrast study should be repeated because the initial study with plug present will show dilated rectosigmoid, but the repeat study will reveal the transition zone more clearly. — Marc Levitt (clinical) [Ep 3 · 3:00](https://library.globalcastmd.com/watch/hirschsprung-13870?t=180)
- In total colonic Hirschsprung's disease, there is often no obvious transition zone on contrast study. — Marc Levitt (clinical) [Ep 3 · 3:00](https://library.globalcastmd.com/watch/hirschsprung-13870?t=180)
- Suction rectal biopsy is the gold standard for diagnosing Hirschsprung's disease, and some centers proceed directly to biopsy without contrast study. — Marc Levitt (clinical) [Ep 3 · 4:00](https://library.globalcastmd.com/watch/hirschsprung-13870?t=240)
- Contrast study serves as a surgical GPS map of the colon anatomy and is preferred before operating, even though biopsy alone can rule out Hirschsprung's. — Marc Levitt (opinion) [Ep 3 · 4:00](https://library.globalcastmd.com/watch/hirschsprung-13870?t=240)
- The physiologic obstruction in Hirschsprung's disease leads to stasis, bacterial overgrowth, and bacterial translocation because mucosal integrity is abnormal. — Marc Levitt (clinical) [Ep 3 · 4:42](https://library.globalcastmd.com/watch/hirschsprung-13870?t=282)
- A constipated baby without Hirschsprung's disease will not develop enterocolitis because their mucosal integrity and IgA levels are normal. — Marc Levitt (clinical) [Ep 3 · 4:42](https://library.globalcastmd.com/watch/hirschsprung-13870?t=282)
- Down syndrome patients with Hirschsprung's disease have worse enterocolitis because they have a weaker immune barrier. — Marc Levitt (clinical) [Ep 3 · 4:42](https://library.globalcastmd.com/watch/hirschsprung-13870?t=282)
- Irrigation protocol: use a 20 French soft silicone Foley catheter with warm saline in 10-20cc aliquots, washing the inside of the colon by injecting, allowing drip-back, advancing the catheter a few centimeters, and repeating for up to 30 minutes. — Marc Levitt (clinical) [Ep 3 · 5:44](https://library.globalcastmd.com/watch/hirschsprung-13870?t=344)
- Irrigations should be performed two to three times per day and require a written protocol so nurses know exactly what is expected. — Marc Levitt (clinical) [Ep 3 · 5:44](https://library.globalcastmd.com/watch/hirschsprung-13870?t=344)
- If irrigations are performed correctly but do not reach the transition zone, the baby will remain distended and irrigations will not be effective. — Marc Levitt (clinical) [Ep 3 · 5:44](https://library.globalcastmd.com/watch/hirschsprung-13870?t=344)
- When irrigations fail despite correct technique, the surgeon must decide between a leveling colostomy (bringing dilated bowel to surface, ideally with frozen section confirmation) or an ileostomy with colonic biopsies. — Marc Levitt (clinical) [Ep 3 · 7:00](https://library.globalcastmd.com/watch/hirschsprung-13870?t=420)
- Ileostomy does not require intraoperative pathology at 3 AM, the baby will thrive, and full colonic pathology data can be obtained later, but it requires three operations instead of two. — Marc Levitt (clinical) [Ep 3 · 7:30](https://library.globalcastmd.com/watch/hirschsprung-13870?t=450)
- In regions where ileostomy management is difficult and babies can dehydrate quickly, ileostomy may not be appropriate. — Marc Levitt (clinical) [Ep 3 · 7:30](https://library.globalcastmd.com/watch/hirschsprung-13870?t=450)
- A leveling colostomy is usually accurate when placed in dilated bowel to the surgeon's eye, but the risk is opening a colostomy still in the transition zone. — Marc Levitt (clinical) [Ep 3 · 7:30](https://library.globalcastmd.com/watch/hirschsprung-13870?t=450)
- A loop ileostomy where both limbs are equal is inappropriate because stool will jump across and fill the aganglionic segment, causing continued distension and potential enterocolitis despite diversion. — Marc Levitt (clinical) [Ep 3 · 9:26](https://library.globalcastmd.com/watch/hirschsprung-13870?t=566)
- A Turnbull ileostomy (cutting the bowel completely on one side of the loop, intussuscepting it over a finger to create an end-stoma appearance with flat distal opening) or a divided ileostomy with proximal end brought up and distal limb tacked to it are both appropriate diversion techniques. — Marc Levitt (clinical) [Ep 3 · 9:26](https://library.globalcastmd.com/watch/hirschsprung-13870?t=566)
- Post-pull-through patients present with two distinct problems: obstruction (chronic distension, enterocolitis episodes, failure to thrive) or soiling (no distension, no enterocolitis, uncontrolled stooling). — Marc Levitt (clinical) [Ep 3 · 11:51](https://library.globalcastmd.com/watch/hirschsprung-13870?t=711)
- Anatomic causes of post-pull-through obstruction include inadequate Soave cuff (not cut enough, rolled up, or refused), twisted pull-through (180 or 360 degrees), Duhamel spur (two lumens not successfully joined), large Duhamel pouch reaching into pelvis, stricture, and transition zone pull-through. — Marc Levitt (clinical) [Ep 3 · 12:40](https://library.globalcastmd.com/watch/hirschsprung-13870?t=760)
- A Soave cuff feels like a rubbery circumferential ring outside the pull-through on digital exam. — Marc Levitt (clinical) [Ep 3 · 12:40](https://library.globalcastmd.com/watch/hirschsprung-13870?t=760)
- A twisted pull-through prevents the examining finger from entering the pelvis; on abdominal palpation you feel like you are hitting a wall. — Marc Levitt (clinical) [Ep 3 · 12:40](https://library.globalcastmd.com/watch/hirschsprung-13870?t=760)
- Contrast study may show a cuff by revealing extra presacral space on lateral view; the pull-through should hug the sacrum, and a cuff pushes it forward. — Marc Levitt (clinical) [Ep 3 · 12:40](https://library.globalcastmd.com/watch/hirschsprung-13870?t=760)
- In Duhamel patients, biopsy must be taken from the posterior wall because the anterior wall is the original aganglionic rectum. — Marc Levitt (clinical) [Ep 3 · 15:00](https://library.globalcastmd.com/watch/hirschsprung-13870?t=900)
- If anatomic causes and pathology are normal in an obstructed post-pull-through patient, the problem is non-relaxing sphincters, and empiric Botox is appropriate. — Marc Levitt (clinical) [Ep 3 · 15:00](https://library.globalcastmd.com/watch/hirschsprung-13870?t=900)
- Every child born with Hirschsprung's disease has 100% potential for bowel control because the continence mechanism is normal and the sphincters are strong, not weak. — Marc Levitt (clinical) [Ep 3 · 16:13](https://library.globalcastmd.com/watch/hirschsprung-13870?t=973)
- This is very different from anorectal malformation, where associated spinal problems, poor sacrum, or poor muscles can prevent continence despite a perfect operation. — Marc Levitt (clinical) [Ep 3 · 16:13](https://library.globalcastmd.com/watch/hirschsprung-13870?t=973)
- Overstretching of sphincters or starting transanal dissection too low (removing the dentate line) will cause iatrogenic fecal incontinence. — Marc Levitt (clinical) [Ep 3 · 17:10](https://library.globalcastmd.com/watch/hirschsprung-13870?t=1030)
- Patients with damaged sphincters or removed dentate line need mechanical bowel management with enemas from below (Peristeen) or antegrade (Malone) because they lack continence potential. — Marc Levitt (clinical) [Ep 3 · 17:10](https://library.globalcastmd.com/watch/hirschsprung-13870?t=1030)
- If the anus appears closed when the patient is awake, that usually indicates good sphincters. — Marc Levitt (clinical) [Ep 3 · 18:00](https://library.globalcastmd.com/watch/hirschsprung-13870?t=1080)
- Anorectal manometry can objectively determine whether sphincters are intact. — Marc Levitt (clinical) [Ep 3 · 18:00](https://library.globalcastmd.com/watch/hirschsprung-13870?t=1080)
- The vast majority of Hirschsprung's patients are constipated and need stimulant laxatives (senna or bisacodyl), not stool softeners. — Marc Levitt (clinical) [Ep 3 · 18:40](https://library.globalcastmd.com/watch/hirschsprung-13870?t=1120)
- Adding water-soluble fiber to stimulant laxatives provides bulk to prevent watery stool, which is difficult to control, while maintaining propulsion effect. — Marc Levitt (clinical) [Ep 3 · 18:40](https://library.globalcastmd.com/watch/hirschsprung-13870?t=1120)
- The goal of medical management is one to two well-formed stools per day, which usually translates into successful continence. — Marc Levitt (clinical) [Ep 3 · 18:40](https://library.globalcastmd.com/watch/hirschsprung-13870?t=1120)
- Soiling patients who are withholding or have not learned to overcome their non-relaxing internal sphincter often need Botox to achieve successful potty training. — Marc Levitt (clinical) [Ep 3 · 19:30](https://library.globalcastmd.com/watch/hirschsprung-13870?t=1170)
- Some Hirschsprung's patients have hypermotility and stool too frequently; stopping stimulant laxatives in these patients can achieve continence within two days. — Marc Levitt (clinical) [Ep 3 · 19:30](https://library.globalcastmd.com/watch/hirschsprung-13870?t=1170)
- X-ray showing no stool accumulation in a child stooling five times per day indicates fast-moving colon (hypermotility). — Marc Levitt (clinical) [Ep 3 · 19:30](https://library.globalcastmd.com/watch/hirschsprung-13870?t=1170)
- Contrast study distinguishes constipated (dilated colon) from hypermotile (non-dilated colon) patients. — Marc Levitt (clinical) [Ep 3 · 19:30](https://library.globalcastmd.com/watch/hirschsprung-13870?t=1170)
- Hypermotile patients need constipating diet, water-soluble fiber, and occasionally loperamide to slow transit and achieve one to two formed stools per day. — Marc Levitt (clinical) [Ep 3 · 19:30](https://library.globalcastmd.com/watch/hirschsprung-13870?t=1170)
- Nighttime soiling is typical because patients are totally dependent on voluntary external sphincter control, which they lose awareness of during sleep. — Marc Levitt (clinical) [Ep 3 · 20:48](https://library.globalcastmd.com/watch/hirschsprung-13870?t=1248)
- Behavioral interventions for nighttime soiling include ensuring the child stools before bed and giving a small enema before bed to keep the rectum empty for eight hours. — Marc Levitt (clinical) [Ep 3 · 20:48](https://library.globalcastmd.com/watch/hirschsprung-13870?t=1248)
- Malone appendicostomy is appropriate when rectal enemas are not tolerated, Peristeen is ineffective, or the family prefers not to use the rectal route. — Marc Levitt (clinical) [Ep 3 · 21:27](https://library.globalcastmd.com/watch/hirschsprung-13870?t=1287)
- Malone is typically performed between ages 3.5 and 8-9 years, around the time of potty training when it becomes clear that antegrade flushes will be required. — Marc Levitt (clinical) [Ep 3 · 21:27](https://library.globalcastmd.com/watch/hirschsprung-13870?t=1287)
- Most children should be in normal underwear (out of diapers) by age 3-4 years. — Marc Levitt (opinion) [Ep 3 · 21:27](https://library.globalcastmd.com/watch/hirschsprung-13870?t=1287)
- The vast majority of Hirschsprung patients do extremely well after pull-through with normal emptying and bowel control. — Marc Levitt (clinical) [Ep 15 · 3:28](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=208)
- Problem patients divide into two types: obstruction patients (cannot empty) and soiling patients (lack control). — Marc Levitt (clinical) [Ep 15 · 3:50](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=230)
- Enterocolitis after well-done pull-through is common in babies because they have very tight sphincters capable of staying tight for many hours. — Marc Levitt (clinical) [Ep 15 · 4:20](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=260)
- After about age one, patients should learn to empty and relax sphincters with normal bowel movement pattern; persistent enterocolitis after age one requires evaluation. — Marc Levitt (clinical) [Ep 15 · 4:50](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=290)
- Evaluation of post-pull-through obstruction involves contrast study of colon and examination under anesthesia. — Marc Levitt (clinical) [Ep 15 · 5:15](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=315)
- Anatomic causes of post-pull-through obstruction include: distal stricture, obstructing cuff, Duhamel pouch dysfunction, twisted pull-through (up to 360 degrees), and dilated distal segment. — Marc Levitt (clinical) [Ep 15 · 5:38](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=338)
- Pathologic cause of obstruction: pull-through not done to ganglionated bowel with normal-sized nerves (transition zone bowel with nerves >40 microns will not function). — Marc Levitt (clinical) [Ep 15 · 7:00](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=420)
- Treatment for enterocolitis: rule out stricture with Hagar dilators (not finger in babies), provide IV hydration and IV metronidazole, perform rectal irrigations 2-3 times daily. — Marc Levitt (clinical) [Ep 15 · 8:19](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=499)
- Irrigation technique: 10-20 cc/kg saline through size 20-22 Foley catheter, instill and let drip out, move tube to wash colon interior. — Marc Levitt (clinical) [Ep 15 · 9:37](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=577)
- Metronidazole has same efficacy IV or PO because both routes depend on biliary excretion into colon. — Marc Levitt (clinical) [Ep 15 · 11:07](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=667)
- In diverted colon (with ileostomy), flagyl will not work for colitis because drug exits via ileostomy; vancomycin enemas are needed. — Marc Levitt (clinical) [Ep 15 · 11:30](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=690)
- Literature reports 15-20% of patients have enterocolitis episode within first year after pull-through; after one year, persistent enterocolitis warrants anatomic or pathologic investigation. — Marc Levitt (epidemiological) [Ep 15 · 12:21](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=741)
- On contrast study, look for cuff as indentation in presacral space (pull-through should hug sacrum); cuff can divert pull-through forward. — Marc Levitt (clinical) [Ep 15 · 12:58](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=778)
- Soave cuff is outside the pull-through lumen and cannot be detected intraluminally with endoscopy; must be felt on digital exam or seen on lateral contrast view. — Marc Levitt (clinical) [Ep 15 · 15:18](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=918)
- On EUA, use fifth digit to feel along sacral hollow for rubbery thick rubber-band structure (cuff) outside the pull-through. — Marc Levitt (clinical) [Ep 15 · 16:40](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=1000)
- Biopsy should be taken above dentate line by about 1 cm and sent for permanent section (not frozen) to assess ganglion cells and nerve size in redo situations. — Marc Levitt (clinical) [Ep 15 · 17:20](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=1040)
- Transition zone pull-through (ganglion cells present but hypertrophic nerves) in symptomatic patient requires redo pull-through to healthy ganglionated bowel. — Marc Levitt (clinical) [Ep 15 · 18:21](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=1101)
- Redo pull-through approach: prone and supine, transanal dissection preserving anal canal and dentate line, full-thickness dissection of pull-through, removal of cuff, may require laparotomy/laparoscopy for mobilization to healthy bowel. — Marc Levitt (clinical) [Ep 15 · 19:19](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=1159)
- For persistent cuff: dissect between bowel and cuff, then dissect cuff in Swenson plane; remove posterior-lateral ring (not entire circumference) to break obstruction while avoiding anterior injury to urethra/vagina. — Marc Levitt (clinical) [Ep 15 · 20:30](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=1230)
- Successful myectomies likely work by cutting the cuff rather than internal sphincter; myectomy technique varies widely between surgeons. — Marc Levitt (opinion) [Ep 15 · 21:49](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=1309)
- Myectomy can cause permanent incontinence by damaging skeletal muscle; Dr. Levitt strongly argues against myectomy in favor of targeted cuff removal or Botox. — Marc Levitt (opinion) [Ep 15 · 22:40](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=1360)
- Post-pull-through sphincter problems are relatively rare compared to anatomic causes; most obstruction is not sphincter-related. — Marc Levitt (clinical) [Ep 15 · 23:58](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=1438)
- Anorectal manometry can confirm sphincter dysfunction (failure to relax) and distinguish sphincter-only high tone (1 cm) from sphincter-plus-cuff (3-4 cm of high tone). — Marc Levitt (clinical) [Ep 15 · 26:40](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=1600)
- Botox acts as temporary myectomy; preferred over permanent myectomy because it wears off as children learn sphincter coordination (typically by 4-8 weeks with laxative support). — Marc Levitt (clinical) [Ep 15 · 24:40](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=1480)
- Botox can temporarily improve cuff obstruction if injection migrates to cuff level, but patient will not achieve long-term improvement without cuff removal. — Marc Levitt (clinical) [Ep 15 · 26:45](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=1605)
- For twisted pull-through: dissect in Swenson plane to peritoneal reflection, usually via open laparotomy (not laparoscopy) due to adhesions, preserve sigmoid arcade, deliver bowel into abdomen and re-pull through untwisted. — Marc Levitt (clinical) [Ep 15 · 27:55](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=1675)
- Redo Duhamel is the hardest Hirschsprung reoperation due to pelvic fibrosis from stapled connection of two lumens. — Marc Levitt (opinion) [Ep 15 · 29:49](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=1789)
- Redo Duhamel technique: start transanal, dissect around both pull-through (posterior) and original rectum (anterior), go to abdomen for deep pelvic dissection with St. Mark's retractor, connect planes, remove pouch and mated segment, redo as Swenson. — Marc Levitt (clinical) [Ep 15 · 31:00](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=1860)
- All Hirschsprung patients should be able to empty spontaneously and be clean; concept that patients improve over many years into teenage years is wrong. — Marc Levitt (opinion) [Ep 15 · 32:58](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=1978)
- By definition, Hirschsprung patients are born with normal anal canal and normal (if anything, too strong) sphincters; no Hirschsprung patient is born with missing anal canal or weak sphincter. — Marc Levitt (clinical) [Ep 15 · 33:40](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=2020)
- Soiling Hirschsprung patients with lost anal canal or weak sphincters have iatrogenic injury; causes are starting transanal dissection too low (invading dentate line) or overstretching during dissection. — Marc Levitt (clinical) [Ep 15 · 34:30](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=2070)
- Overstretching was common with aggressive transabdominal deep pelvic dissection; now recurring with too-aggressive transanal dissection; laparoscopy avoids deep transanal work. — Marc Levitt (clinical) [Ep 15 · 35:20](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=2120)
- Soiling evaluation: determine original surgery type, assess sphincter patency (visual, digital, manometry), assess dentate line integrity; perform digital exam as patient goes to sleep to test squeeze. — Marc Levitt (clinical) [Ep 15 · 36:00](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=2160)
- Contrast study in soiling patient serves as 'poor man's colonic manometry': narrow non-dilated pull-through suggests hypermotility; dilated pull-through suggests hypomotility. — Marc Levitt (clinical) [Ep 15 · 37:00](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=2220)
- Four soiling scenarios: (1) intact anatomy + non-dilated colon (hypermotile) → slow with loperamide, constipating diet, water-soluble fiber; (2) intact anatomy + dilated colon (hypomotile) → laxatives, possibly bridge enemas; (3) destroyed anatomy + non-dilated colon → small enemas + anti-motility; (4) destroyed anatomy + dilated colon → large enemas. — Marc Levitt (clinical) [Ep 15 · 37:50](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=2270)
- Capacity for bowel control is determined by intact sphincters and anal canal; patients with capacity can usually be managed medically; those without capacity need enema programs. — Marc Levitt (clinical) [Ep 15 · 39:47](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=2387)
- Surgical management (Malone appendicostomy or cecostomy) is only for patients without capacity for bowel control. — Marc Levitt (clinical) [Ep 15 · 42:30](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=2550)
- Methodical evaluation with contrast study and examination under anesthesia reveals solvable pathology in most problematic pull-through patients. — Marc Levitt (opinion) [Ep 15 · 43:45](https://library.globalcastmd.com/watch/hirschsprung-disease-part-2-13875?t=2625)
- Hirschsprung disease affects approximately 1 in 5,000 children. — Marc Levitt (epidemiological) [Ep 4 · 2:31](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=151)
- In Hirschsprung disease, nerve ganglia are absent in the distal colon, causing the affected segment to remain contracted and unable to relax. — Marc Levitt (clinical) [Ep 4 · 5:58](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=358)
- The proximal colon dilates as it attempts to push stool through the contracted distal segment. — Marc Levitt (clinical) [Ep 4 · 6:48](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=408)
- Stasis of stool in the dilated proximal colon allows bacterial overgrowth, creating a 'swamp' that can lead to enterocolitis. — Marc Levitt (clinical) [Ep 4 · 6:48](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=408)
- Girls are slightly more commonly affected by Hirschsprung disease, but the difference is not dramatic; approximately half of patients are boys and half are girls. — Marc Levitt (epidemiological) [Ep 4 · 7:40](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=460)
- There are no racial or ethnic differences in Hirschsprung disease incidence. — Marc Levitt (epidemiological) [Ep 4 · 8:09](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=489)
- Down syndrome is associated with a higher incidence of Hirschsprung disease than the general population. — Marc Levitt (epidemiological) [Ep 4 · 8:09](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=489)
- Hirschsprung disease shows familial clustering, with documented cases spanning three generations (grandparent, parent, child). — Marc Levitt (epidemiological) [Ep 4 · 8:45](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=525)
- Nerve ganglia normally migrate from proximal to distal during bowel development; in Hirschsprung disease, this migration is incomplete, always affecting the distal bowel with no skip areas. — Marc Levitt (clinical) [Ep 4 · 10:12](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=612)
- Most infants with Hirschsprung disease fail to pass meconium in the first 24 hours of life; suspicion increases if no stool has passed by 48 hours. — Marc Levitt (clinical) [Ep 4 · 11:05](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=665)
- Affected infants develop abdominal distention, irritability, and vomiting. — Marc Levitt (clinical) [Ep 4 · 11:05](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=665)
- Infants with very short-segment Hirschsprung disease may not present in the newborn period and can eat and stool, though never well, remaining chronically distended. — Marc Levitt (clinical) [Ep 4 · 12:12](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=732)
- Older children with undiagnosed Hirschsprung disease typically show failure to thrive, chronic abdominal distention, and episodes of diarrhea (which are actually enterocolitis). — Marc Levitt (clinical) [Ep 4 · 13:01](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=781)
- Anorectal malformation (imperforate anus) is a key differential diagnosis; careful inspection of the perineum is essential to confirm an anal opening exists. — Marc Levitt (clinical) [Ep 4 · 14:21](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=861)
- Maternal magnesium sulfate (used to slow contractions during difficult delivery) can cause transient bowel dysmotility in newborns lasting several days. — Marc Levitt (clinical) [Ep 4 · 14:21](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=861)
- Hypothyroidism and maternal narcotic exposure can both cause severe neonatal bowel dysmotility. — Marc Levitt (clinical) [Ep 4 · 14:21](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=861)
- Cystic fibrosis can present with neonatal bowel obstruction and typically has a characteristic X-ray appearance. — Marc Levitt (clinical) [Ep 4 · 15:33](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=933)
- Diagnosis begins with plain abdominal X-ray showing colonic distention, followed by contrast enema demonstrating a narrow distal segment with proximal dilation. — Marc Levitt (clinical) [Ep 4 · 16:11](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=971)
- Definitive diagnosis requires rectal biopsy showing both absence of ganglion cells AND hypertrophied nerve trunks; both criteria are necessary. — Marc Levitt (clinical) [Ep 4 · 16:11](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=971)
- Water-soluble contrast is preferred over barium for contrast enemas in suspected Hirschsprung disease. — Marc Levitt (clinical) [Ep 4 · 16:11](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=971)
- Initial management requires rectal catheter insertion to decompress the colon, allowing gas and liquid stool to rush out. — Marc Levitt (clinical) [Ep 4 · 18:14](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=1094)
- Rectal irrigations (not enemas) must be performed repeatedly to wash the colonic lining and prevent bacterial overgrowth; irrigations involve continuous fluid exchange, not simple instillation. — Marc Levitt (clinical) [Ep 4 · 18:14](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=1094)
- Historically, Hirschsprung disease required three operations over six months: colostomy creation, pull-through procedure, and colostomy closure. — Marc Levitt (clinical) [Ep 4 · 20:15](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=1215)
- Modern surgical technique allows the entire operation to be performed transanally with no abdominal incisions, sometimes with laparoscopic assistance. — Marc Levitt (clinical) [Ep 4 · 20:15](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=1215)
- Modern single-stage repair can be performed in the first week of life, with hospital discharge several days later. — Marc Levitt (clinical) [Ep 4 · 21:08](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=1268)
- Enterocolitis in Hirschsprung disease is diarrhea occurring proximal to the obstruction, invisible to clinicians because stool cannot exit the anus. — Marc Levitt (clinical) [Ep 4 · 21:57](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=1317)
- Fluid shifts from the infant's body into the obstructed colon cause severe dehydration without visible diarrhea. — Marc Levitt (clinical) [Ep 4 · 21:57](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=1317)
- Several infants die annually in the United States from Hirschsprung enterocolitis; mortality is higher in developing countries. — Marc Levitt (epidemiological) [Ep 4 · 21:57](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=1317)
- Inflamed colonic mucosa allows bacterial translocation into the bloodstream, causing sepsis. — Marc Levitt (clinical) [Ep 4 · 23:10](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=1390)
- Bowel perforation can occur in the most distended area if enterocolitis progresses, though this is extremely rare. — Marc Levitt (clinical) [Ep 4 · 23:10](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=1390)
- Rectal irrigations performed by skilled neonatal nurses break the enterocolitis cycle and prevent progression to perforation and sepsis. — Marc Levitt (clinical) [Ep 4 · 23:10](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=1390)
- An elegantly performed operation should result in normal bowel emptying and 100% normal bowel function. — Marc Levitt (opinion) [Ep 4 · 24:03](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=1443)
- Imperfect initial surgery can leave anatomic problems causing either obstructive symptoms or fecal incontinence. — Marc Levitt (clinical) [Ep 4 · 24:03](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=1443)
- Children with persistent problems after Hirschsprung surgery should not be expected to improve over time; anatomic causes can almost always be identified and corrected. — Marc Levitt (opinion) [Ep 4 · 24:03](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=1443)
- Re-evaluation of children with persistent problems should include contrast study, rectal biopsy to confirm adequate bowel was used, and surgical examination of the pull-through segment. — Marc Levitt (clinical) [Ep 4 · 24:03](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=1443)
- Even after anatomically perfect operations, some children have mild constipation requiring laxatives and dietary modifications, similar to functional constipation management. — Marc Levitt (clinical) [Ep 4 · 27:05](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=1625)
- Current research priorities include identifying the specific genetic mutations causing Hirschsprung disease. — Marc Levitt (clinical) [Ep 4 · 27:51](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=1671)
- A key research question is why the colonic mucosa in Hirschsprung patients is uniquely susceptible to bacterial translocation and enterocolitis, unlike normal children with constipation. — Marc Levitt (clinical) [Ep 4 · 27:51](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=1671)
- Research is ongoing to understand why anatomically normal colon after successful repair sometimes still has slow motility. — Marc Levitt (clinical) [Ep 4 · 27:51](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=1671)
- The Center for Colorectal and Pelvic Reconstruction unifies four traditionally independent teams: colorectal surgery, urology, gynecology, and gastroenterology/motility. — Marc Levitt (clinical) [Ep 4 · 29:11](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=1751)
- The center has treated patients from all 50 U.S. states and 88 countries. — Marc Levitt (clinical) [Ep 4 · 32:50](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=1970)
- For proximal Hirschsprung disease with transition zone at splenic flexure or beyond, surgeons should not perform pull-through on the day of initial operation but should wait for permanent sections. — Marc Levitt (clinical) [Ep 9 · 9:32](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-5-proximal-hirschsprung-disease-surgical-technique-6847?t=572)
- The hypertrophic nerve concept is mainly a sacral nerve plexus entity, occurring in sigmoid and rectum, so hypertrophic nerves are not a concern for more proximal disease. — Marc Levitt (clinical) [Ep 9 · 5:48](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-5-proximal-hirschsprung-disease-surgical-technique-6847?t=348)
- For proximal disease with uncertain frozen sections, ileostomy diversion is preferred over colostomy because it will almost definitely divert successfully, whereas colostomy based on frozen section may not be at the correct level. — Marc Levitt (clinical) [Ep 9 · 6:37](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-5-proximal-hirschsprung-disease-surgical-technique-6847?t=397)
- When performing colonic mapping, biopsy sites should be marked with permanent suture using different numbers of tails for each biopsy to enable identification months later. — Todd Ponsky (clinical) [Ep 9 · 7:29](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-5-proximal-hirschsprung-disease-surgical-technique-6847?t=449)
- In settings without available pathology support, empiric diversion in the dilated segment is a reasonable strategy, and if that bowel works, that is where the pull-through will go. — Marc Levitt (clinical) [Ep 9 · 7:07](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-5-proximal-hirschsprung-disease-surgical-technique-6847?t=427)
- If a child with ileostomy and defunctionalized colon presents months later with severely backed-up, chalky stool that cannot be cleared with irrigations, the colon may need to be addressed, but this is a small population. — Andrea Badillo (clinical) [Ep 9 · 8:46](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-5-proximal-hirschsprung-disease-surgical-technique-6847?t=526)
- There are functional outcome differences between pulling through transverse colon versus left-sided colon. — Todd Ponsky (clinical) [Ep 9 · 9:45](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-5-proximal-hirschsprung-disease-surgical-technique-6847?t=585)
- If a patient has even a little bit of colon—specifically if they have their right colon—they can make one formed stool per day. — Marc Levitt (clinical) [Ep 9 · 10:20](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-5-proximal-hirschsprung-disease-surgical-technique-6847?t=620)
- For mid-transverse colon pull-through, the blood supply is based on right colic artery, but to bring the colon down without creating duodenal obstruction, the bowel must be de-rotated. — Andrea Badillo (clinical) [Ep 9 · 11:15](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-5-proximal-hirschsprung-disease-surgical-technique-6847?t=675)
- For mid-transverse pull-through, the middle colic and very likely the right colic arteries must be ligated, making blood supply dependent on the ileocolic artery and the marginal artery paralleling the right colon. — Marc Levitt (clinical) [Ep 9 · 11:38](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-5-proximal-hirschsprung-disease-surgical-technique-6847?t=698)
- The de-rotation for proximal pull-through involves placing the cecum at the liver bed, bringing the pull-through down the right side, and putting all small bowel on the left side—essentially a rotation opposite to a Ladd's procedure. — Marc Levitt (clinical) [Ep 9 · 11:58](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-5-proximal-hirschsprung-disease-surgical-technique-6847?t=718)
- When performing de-rotation for proximal pull-through, there is a slight twist in the mesentery, so ensuring adequate blood supply without kinking is very important. — Todd Ponsky (clinical) [Ep 9 · 12:10](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-5-proximal-hirschsprung-disease-surgical-technique-6847?t=730)
- For proximal Hirschsprung pull-through, the preferred approach is open surgery, likely through the ileostomy closure incision, though some surgeons have performed it laparoscopically. — Marc Levitt (opinion) [Ep 9 · 12:24](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-5-proximal-hirschsprung-disease-surgical-technique-6847?t=744)
- Surgeons can always leave the operating room without doing something permanent when faced with uncertain intraoperative findings. — Aaron Garrison (clinical) [Ep 9 · 4:18](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-5-proximal-hirschsprung-disease-surgical-technique-6847?t=258)
- If choosing to wait for permanent sections before pull-through (rather than diverting), the child must be doing well with irrigations, as delaying diversion in a child with smoldering or low-grade enterocolitis features is inappropriate. — Todd Ponsky (clinical) [Ep 9 · 6:09](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-5-proximal-hirschsprung-disease-surgical-technique-6847?t=369)
- When performing ileostomy for proximal disease, a biopsy from the ileum should be sent. — Marc Levitt (clinical) [Ep 9 · 6:49](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-5-proximal-hirschsprung-disease-surgical-technique-6847?t=409)
- Trisomy 21 is associated with approximately 50 times higher incidence of Hirschsprung disease compared to non-trisomy 21 patients, with about 5-10% of trisomy 21 patients having Hirschsprung disease. — Lily Cheng (epidemiological) [Ep 7 · 2:58](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=178)
- Hirschsprung disease is almost never an emergency operation, and irrigations usually win the day. — Marc Levitt (clinical) [Ep 7 · 9:52](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=592)
- In Hirschsprung disease with perforation, the cecum perforates due to Laplace's law, and this indicates the transition zone is probably around the hepatic flexure because the right colon becomes very dilated with nowhere to empty. — Marc Levitt (clinical) [Ep 7 · 5:52](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=352)
- In anorectal malformation patients with perforation, the sigmoid colon typically perforates with a linear, longitudinal tear along the taenia. — Jason Frischer (clinical) [Ep 7 · 6:27](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=387)
- The pathophysiology of Hirschsprung enterocolitis involves physiologic obstruction at both the sphincter level and in the aganglionic segment, leading to stasis, bacterial overgrowth, translocation, and sepsis. — Jason Frischer (clinical) [Ep 7 · 7:34](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=454)
- Proper irrigation technique involves instilling small aliquots of warm saline (20-40 mL at a time) and actively withdrawing with a catheter to evacuate the saline, not just infusing it into the colon lumen. — Marc Levitt (clinical) [Ep 7 · 8:11](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=491)
- Cold saline used for irrigations in small children can significantly change the child's body temperature, so warm saline should be used. — Jason Frischer (clinical) [Ep 7 · 8:41](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=521)
- The rectosigmoid ratio less than one on contrast enema is indicative of Hirschsprung disease. — Lily Cheng (clinical) [Ep 7 · 10:40](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=640)
- Sawtoothing in the rectum on contrast enema represents hyperperistalsis and is very classic for Hirschsprung disease, particularly when associated with enterocolitis. — Jason Frischer (clinical) [Ep 7 · 10:55](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=655)
- Definitive pathologic diagnosis of Hirschsprung disease requires absence of ganglion cells in 100 levels and presence of hypertrophic nerves greater than 40 microns. — Marc Levitt (clinical) [Ep 7 · 11:28](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=688)
- Frozen section can only definitively tell you it is NOT Hirschsprung disease (if ganglion cells are present), but cannot definitively confirm it IS Hirschsprung disease because that requires 100 levels with no ganglion cells anywhere. — Marc Levitt (clinical) [Ep 7 · 11:28](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=688)
- Calretinin staining is used as an adjunct: if calretinin is present, ganglion cells are nearby; if calretinin stain is absent, this further confirms Hirschsprung disease. — Christy Raylan (clinical) [Ep 7 · 11:54](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=714)
- If a patient has recovered from enterocolitis and irrigations are going well with reliable family, it is reasonable to send them home for 1-2 months before definitive operation rather than operating at 2 weeks. — Jason Frischer (opinion) [Ep 7 · 13:33](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=813)
- Literature from the PCPLC and Michael Rollins shows that delayed definitive surgery for Hirschsprung disease (around 3 months out) has similar outcomes, so it is okay to wait as long as patient receives good irrigations and is growing and healthy. — Jason Frischer (clinical) [Ep 7 · 14:29](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=869)
- If a baby with Hirschsprung disease is improving with irrigations but cannot be fed, diversion is a reasonable next step to allow enteral nutrition and growth. — Marc Levitt (clinical) [Ep 7 · 15:20](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=920)
- For leveling biopsies, the optimal strategy is to go directly to the sigmoid ('go for the money') and if frozen section shows ganglion cells, no other biopsies are necessary. — Marc Levitt (clinical) [Ep 7 · 16:14](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=974)
- If mapping the colon without frozen section available, the entire colon should be mapped (left colon, transverse colon, and hepatic flexure/right colon) to avoid missing ganglionic segments. — Jason Frischer (clinical) [Ep 7 · 17:23](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=1043)
- The appendix should not be biopsied for Hirschsprung mapping because it is not helpful and should be saved for potential future use; many patients' appendixes are aganglionic. — Marc Levitt (clinical) [Ep 7 · 18:06](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=1086)
- Frozen section interpretation can be difficult in the setting of active enterocolitis due to excessive inflammation obscuring ganglion cells. — Christy Raylan (clinical) [Ep 7 · 20:34](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=1234)
- In resource-limited settings without frozen section availability, the strategy is to bring up the dilated portion of colon as ostomy because it is more likely to be functional. — Marc Levitt (clinical) [Ep 7 · 21:01](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=1261)
- In resource-limited settings, ileostomy is not a good option because patients cannot access medical care quickly enough if they become dehydrated, so colostomy is preferred. — Marc Levitt (clinical) [Ep 7 · 21:01](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=1261)
- Modern telemedicine technology allows pathology slides (H&E stains) to be photographed through microscope and sent via internet for remote ganglion cell evaluation, helping save colons in resource-limited settings. — Marc Levitt (clinical) [Ep 7 · 21:35](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=1295)
- By pure numbers, 80% of Hirschsprung disease cases are rectosigmoid, so remote pathology evaluation saves many colons. — Marc Levitt (epidemiological) [Ep 7 · 21:35](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=1295)
- In settings where patients can be kept well hydrated with easy healthcare access, ileostomy is preferred over colostomy for diversion because colostomy mesentery becomes shortened and inflamed after division, making subsequent pull-through technically difficult with inadequate reach. — Jason Frischer (clinical) [Ep 7 · 22:52](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=1372)
- When performing ileostomy for Hirschsprung diversion, frozen section should be done on the ileostomy to ensure it will function. — Jason Frischer (clinical) [Ep 7 · 23:41](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=1421)
- If a surgeon does a good job with pull-through using elegant technique, preserving the anal canal, and not overstretching sphincters, the patient will still get some enterocolitis because the continence mechanism is preserved and patients cannot relax their internal sphincter. — Marc Levitt (clinical) [Ep 7 · 24:15](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=1455)
- Patients whose sphincters were overstretched during Hirschsprung surgery developed fecal incontinence but never got enterocolitis, demonstrating the relationship between sphincter function and enterocolitis risk. — Marc Levitt (clinical) [Ep 7 · 24:15](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=1455)
- A study of Botox injection at one month post-operatively for Hirschsprung disease showed it did not help prevent enterocolitis (negative study published). — Marc Levitt (clinical) [Ep 7 · 26:10](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=1570)
- Cincinnati group is conducting a non-randomized study of Botox injection at the anal sphincter at time of ileostomy closure, with retrospective baseline comparison and prospective data collection currently in mid-30s patients; some patients in the protocol have still developed enterocolitis, so it is not 100% effective. — Jason Frischer (clinical) [Ep 7 · 26:54](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=1614)
- Families should be sent home with equipment to irrigate and taught how to irrigate before the pull-through so they can practice, ensuring they know the technique before discharge and avoiding catheter passage through fresh anastomosis post-op day 5. — Jason Frischer (clinical) [Ep 7 · 28:04](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=1684)
- Harold Hirschsprung identified that a baby could be sick due to this problem but did not understand the pathology. — Marc Levitt (clinical) [Ep 2 · 0:26](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13861?t=26)
- The disease is named Hirschsprung disease, not apostrophe S. — Marc Levitt (guideline) [Ep 2 · 0:26](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13861?t=26)
- Orvar Swenson figured out the pathology by going to the pathology lab and defined the fact that there were no ganglion cells. — Marc Levitt (clinical) [Ep 2 · 0:26](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13861?t=26)
- Prior to Swenson's work, removal of the dilated colon was the treatment, which was a mistake; it was the distal narrow colon that was the problem. — Marc Levitt (clinical) [Ep 2 · 0:26](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13861?t=26)
- Swenson developed the first operation for Hirschsprung disease, a full-thickness rectal dissection. — Marc Levitt (clinical) [Ep 2 · 0:26](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13861?t=26)
- Some surgeons still do Suave procedures, but they are becoming more Swenson-like with maybe a one-centimeter cuff; Dan von Allman calls those 'Suavesons with a one-centimeter cuff.' — Marc Levitt (opinion) [Ep 2 · 0:26](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13861?t=26)
- Dr. Yancey was the first surgeon to describe a submucosal dissection for Hirschsprung disease, but published in a journal not widely read; Dr. Suave published later in a more widely read journal, so the technique is called Suave rather than Yancey. — Marc Levitt (clinical) [Ep 2 · 0:26](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13861?t=26)
- The Suave technique was developed because people said the Swenson caused fecal and urinary incontinence or voiding dysfunction; Swenson himself wrote that the operation was good but surgeons were doing it wrong by dissecting too wide. — Marc Levitt (clinical) [Ep 2 · 0:26](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13861?t=26)
- Doing a proper Swenson right on the bowel wall, like a PSARP right on the bowel wall, avoids nerve injury; if you see fat you can get closer, as the nerves are in the fatty layer. — Marc Levitt (clinical) [Ep 2 · 0:26](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13861?t=26)
- Swenson was 105 when he died and used to write letters to Levitt and Alberto Pena asking them to promote the Swenson operation. — Marc Levitt (clinical) [Ep 2 · 0:26](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13861?t=26)
- Duhamel had the idea to leave the original rectum behind and do a pull-through next to it, then mate the two lumens. — Marc Levitt (clinical) [Ep 2 · 0:26](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13861?t=26)
- The Duhamel is now really only appropriate for an ilio-Duhamel, although Levitt would still do an ilioanal. — Marc Levitt (opinion) [Ep 2 · 0:26](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13861?t=26)
- Rabine did a low anterior resection for Hirschsprung disease, leaving about six centimeters behind; some patients did fine as ganglionated bowel pooped through the six centimeters of aganglionated bowel, but that operation has gone to the wayside. — Marc Levitt (clinical) [Ep 2 · 0:26](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13861?t=26)
- Dr. Boley was the first to do the primary coloanal anastomosis of a Suave, eliminating the need to leave the bowel hanging out and come back at day seven; the proper description is the Suave technique with the Boley modification, i.e., a Suave-Boley. — Marc Levitt (clinical) [Ep 2 · 5:57](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13861?t=357)
- Henry So was a pediatric surgeon in the Philippines and the first to do a primary pull-through (transabdominal) with no preceding stoma, because patients with stomas at home in the Philippines faced such social stigma that babies were basically left to die by their families. — Marc Levitt (clinical) [Ep 2 · 5:57](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13861?t=357)
- Dr. Martin was the first surgeon-in-chief and pediatric surgeon at Cincinnati Children's Hospital. — Jason Frischer (clinical) [Ep 2 · 9:40](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13861?t=580)
- Dr. Martin developed the Martin procedure, an expansion of the Duhamel for long-segment Hirschsprung disease, leaving a longer aganglionated segment of rectum and pulling through ganglionated bowel. — Jason Frischer (clinical) [Ep 2 · 9:40](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13861?t=580)
- Dr. Martin's biggest contribution was in ulcerative colitis; in 1977, before the J-pouch, he took the endorectal pull-through technique used in Hirschsprung disease and applied it to ulcerative colitis, doing a total proctocolectomy with ilioanal anastomosis. — Marc Levitt (clinical) [Ep 2 · 10:34](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13861?t=634)
- The transanal dissection and Suave plane dissection is the same concept as the mucosectomy in ulcerative colitis. — Marc Levitt (clinical) [Ep 2 · 10:34](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13861?t=634)
- Helen Noblet figured out the suction rectal biopsy; she is from Melbourne, Australia. — Marc Levitt (clinical) [Ep 2 · 11:41](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13861?t=701)
- Keith Jorgensen did the laparoscopic version of the Suave; in his original description (with Tom Inge on the paper), they talked about leaving a five-centimeter cuff, which nowadays would be way too much. — Marc Levitt (clinical) [Ep 2 · 11:41](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13861?t=701)
- Jack Langer approached Hirschsprung disease transanally, doing a transanal resection of the rectosigmoid with or without laparoscopy or laparotomy. — Marc Levitt (clinical) [Ep 2 · 11:41](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13861?t=701)
- Luis de la Torre also did transanal resection around the same time as Jack Langer; some places around the world are doing transanal only, and Levitt does that in certain circumstances. — Marc Levitt (clinical) [Ep 2 · 11:41](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13861?t=701)
- Dan Teitelbaum did an incredible amount of work in Hirschsprung disease, particularly significant research in enterocolitis; he passed away from a brain tumor. — Marc Levitt (clinical) [Ep 2 · 11:41](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13861?t=701)
- Laparoscopic approach allows ability to biopsy elsewhere if transition zone is not rectosigmoid — Andrea Badillo (clinical) [Ep 6 · 5:43](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-13864?t=343)
- Deep laparoscopic dissection into pelvis minimizes transanal work needed and avoids sphincter overstretching morbidity — Andrea Badillo (clinical) [Ep 6 · 6:00](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-13864?t=360)
- Transanal dissection should take under one hour in primary pull-through — Marc Levitt (clinical) [Ep 6 · 6:36](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-13864?t=396)
- Full-thickness biopsy must include seromuscular side same size as mucosal side (cube-shaped) — Aaron Garrison (clinical) [Ep 6 · 7:09](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-13864?t=429)
- Should wait for frozen section before taking mesentery — Andrea Badillo (clinical) [Ep 6 · 9:30](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-13864?t=570)
- Adequate frozen section requires ganglion cells and nerves less than 40 microns — Andrea Badillo (clinical) [Ep 6 · 10:08](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-13864?t=608)
- Frozen section biopsy must include submucosa to avoid missing hypertrophic nerves in submucosal layer while finding ganglion cells in seromuscular layer — Jason Frischer (clinical) [Ep 6 · 10:19](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-13864?t=619)
- Mesenteric dissection should stay close to bowel wall, not deep in mesentery, to reduce bleeding — Jason Frischer (clinical) [Ep 6 · 11:00](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-13864?t=660)
- In old Swenson procedures done through abdomen, too wide distal rectal dissection caused incontinence and urinary retention from nerve injury — Marc Levitt (clinical) [Ep 6 · 11:42](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-13864?t=702)
- Must preserve arcade along left colon and sigmoid to get enough length to reach pelvis — Jason Frischer (clinical) [Ep 6 · 12:26](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-13864?t=746)
- For distal disease, can take just distal IMA branches; for left colon disease may need to take IMA to get splenic flexure to reach — Marc Levitt (clinical) [Ep 6 · 12:35](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-13864?t=755)
- Transanal dissection should start about one centimeter above dentate line — Andrea Badillo (clinical) [Ep 6 · 13:02](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-13864?t=782)
- Swenson full-thickness dissection follows areolar plane which is essentially bloodless — Marc Levitt (clinical) [Ep 6 · 14:12](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-13864?t=852)
- Soave submucosal dissection leaves a cuff; if performed, cuff should be very short (about one centimeter) and must be split — Marc Levitt (clinical) [Ep 6 · 14:12](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-13864?t=852)
- Resection margin should be approximately five centimeters above biopsy site where bowel looks good — Jason Frischer (clinical) [Ep 6 · 16:06](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-13864?t=966)
- Tacking sutures from serosa to pelvic sidewall at three and six o'clock positions anchor anastomosis in place — Aaron Garrison (clinical) [Ep 6 · 16:30](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-13864?t=990)
- Harold Hirschsprung figured out that a baby could be sick due to this problem but did not understand the pathology. — Marc Levitt (clinical) [Ep 1 · 1:03](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=63)
- The correct name is Hirschsprung disease, not apostrophe S. — Marc Levitt (opinion) [Ep 1 · 1:16](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=76)
- Orvar Swenson figured out the pathology by going to the pathology lab and defined the fact that there were no ganglion cells. — Marc Levitt (clinical) [Ep 1 · 1:24](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=84)
- Prior to Swenson's work, removal of the dilated colon was the treatment, which was a mistake—it was the distal narrow colon that was the problem. — Marc Levitt (clinical) [Ep 1 · 1:35](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=95)
- Swenson developed the first operation for Hirschsprung's disease, which is a full thickness rectal dissection. — Marc Levitt (clinical) [Ep 1 · 1:46](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=106)
- Modern Suave operations are becoming more Swenson-like, making maybe a 1 centimeter cuff, which Dan von Almen describes as basically Swensons with a 1 centimeter cuff. — Marc Levitt (clinical) [Ep 1 · 2:00](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=120)
- The operation ought not to be called the Suave because Doctor Yancey was the first surgeon who described a submucosal dissection for Hirschsprung's disease, but he published in a journal that not many people read, while Suave published years later in a more widely-read journal. — Marc Levitt (clinical) [Ep 1 · 2:13](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=133)
- The Yancey/Suave technique was developed because people said the Swenson caused fecal and urinary incontinence or voiding dysfunction after the operation. — Marc Levitt (clinical) [Ep 1 · 2:42](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=162)
- Doctor Swenson wrote a paper saying the critics were wrong, it's a good operation, and they were doing it wrong by dissecting too wide. — Marc Levitt (clinical) [Ep 1 · 2:56](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=176)
- Yancey, Suave, and Duhamel did everything in their power to avoid the full thickness rectal dissection and stay out of that rectal plane to avoid injury to the nerve erigentes. — Marc Levitt (clinical) [Ep 1 · 3:10](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=190)
- Doing a proper Swenson right on the bowel wall—if you see fat, you can get closer—keeps you away from the nerves which are in the fatty layer; dissecting too wide will injure them. — Marc Levitt (clinical) [Ep 1 · 3:30](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=210)
- Swenson used to write letters to Mark Levitt and Alberto Pena thanking them for promoting the Swenson and asking them to tell everybody it's a good operation; he was 105 when he died. — Marc Levitt (clinical) [Ep 1 · 3:48](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=228)
- Duhamel had the idea to leave the original rectum behind and do a pull-through next to it, then mate the two lumens. — Marc Levitt (clinical) [Ep 1 · 4:06](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=246)
- At this point, the Duhamel is really only appropriate for an ileoduhamel, although Levitt would still do an ileoanal. — Marc Levitt (opinion) [Ep 1 · 4:22](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=262)
- Rabine did a low anterior resection for Hirschsprung's, leaving about 6 centimeters behind; amazingly, some of those patients did perfectly fine with ganglionated bowel pooping through the 6 centimeters of aganglionic bowel. — Marc Levitt (clinical) [Ep 1 · 4:35](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=275)
- Doctor Boley was the first one to do the primary coloanal anastomosis of a Suave, eliminating the need to leave the bowel hanging out and come back at day 7. — Marc Levitt (clinical) [Ep 1 · 6:15](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=375)
- The proper description is the Suave technique with the Boley modification, i.e., a Suave-Boley. — Marc Levitt (clinical) [Ep 1 · 6:36](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=396)
- Hung Bae Kim is the person that figured out the STEP procedure. — Marc Levitt (clinical) [Ep 1 · 8:23](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=503)
- Henrys was a pediatric surgeon in the Philippines and was the first surgeon to do a primary pull-through—a transabdominal operation with no preceding stoma. — Marc Levitt (clinical) [Ep 1 · 8:39](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=519)
- Henrys did the primary pull-through because patients who were at home with stomas in the Philippines were not cared for due to social stigma, and the babies were basically left to die by their families. — Marc Levitt (clinical) [Ep 1 · 8:58](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=538)
- Doctor Martin developed the Martin procedure, which is an expansion of the Duhamel procedure—leaving a longer aganglionic segment of rectum and pulling through ganglionated bowel for long segment Hirschsprung's disease. — Jason Frischer (clinical) [Ep 1 · 10:09](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=609)
- Martin's biggest contribution was to ulcerative colitis; in 1977, before the J pouch, he took the endorectal pull-through technique from Hirschsprung's disease and transferred it to the surgical treatment of ulcerative colitis, doing a total proctocolectomy with ileoanal anastomosis. — Jason Frischer (clinical) [Ep 1 · 10:40](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=640)
- The transanal dissection, the Suave plane dissection, is the same concept as the mucosectomy in ulcerative colitis. — Marc Levitt (clinical) [Ep 1 · 11:34](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=694)
- Helen Noblet is the one who figured out the suction rectal biopsy; she's from Melbourne, Australia. — Marc Levitt (clinical) [Ep 1 · 12:32](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=752)
- Keith Jorgeson is the one that did the laparoscopic version of the Suave; in his original description with Tom Hinge, they talked about leaving a 5 centimeter cuff, which nowadays would be way too much. — Marc Levitt (clinical) [Ep 1 · 12:40](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=760)
- Jack Langer approached transanally to do a transanal resection of the rectosigmoid with or without laparoscopy or laparotomy; Luis de la Torre did the same around the same time. — Marc Levitt (clinical) [Ep 1 · 13:17](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=797)
- Some places around the world are doing transanal only; Levitt does that in certain circumstances. — Marc Levitt (clinical) [Ep 1 · 13:43](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=823)
- Dan Teitelbaum did an incredible amount of work in Hirschsprung's disease and particularly a significant amount of research in enterocolitis. — Marc Levitt (clinical) [Ep 1 · 13:51](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-21-the-history-of-hirschsprung-disease-13818?t=831)
- Trisomy 21 is associated with approximately 50 times higher incidence of Hirschsprung disease than in non-trisomy 21 patients, with about 5-10% of trisomy 21 patients having Hirschsprung disease. — Lily Cheng (epidemiological) [Ep 8 · 3:01](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=181)
- Hirschsprung disease is almost never an emergency operation; irrigation usually wins the day. — Marc Levitt (clinical) [Ep 8 · 9:54](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=594)
- Rectal irrigations for Hirschsprung enterocolitis should use 20 mL per kg, 3 times a day. — Lily Cheng (clinical) [Ep 8 · 4:11](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=251)
- The physiologic obstruction in Hirschsprung disease occurs both at the sphincter level and in the aganglionic segment; breaking this cycle requires getting a tube across it to allow egress of stool, as stasis leads to bacterial overgrowth and translocation causing sepsis. — Marc Levitt (clinical) [Ep 8 · 7:36](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=456)
- Irrigation technique involves instilling small aliquots of warm saline (20-40 mL at a time) and withdrawing it with the catheter to evacuate the saline, not just infusing it into the colon lumen, continuing until output is clear. — Jason Frischer (clinical) [Ep 8 · 8:11](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=491)
- In Hirschsprung disease with free air, perforation typically occurs in the cecum when the transition zone is around the hepatic flexure, because the right colon becomes very dilated with nowhere to empty and the cecum perforates according to Laplace's law. — Marc Levitt (clinical) [Ep 8 · 5:47](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=347)
- In anorectal malformation patients with delayed diagnosis, perforation typically occurs in the sigmoid colon as a linear longitudinal tear along the taenia. — Marc Levitt (clinical) [Ep 8 · 6:27](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=387)
- When a baby is taken to OR with free air and a perforation is found in the cecum, this should prompt rectal biopsy for Hirschsprung disease, and most such patients would get an ileostomy with the transition zone likely at the hepatic flexure. — Jason Frischer (clinical) [Ep 8 · 6:51](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=411)
- Definitive diagnosis of Hirschsprung disease requires absence of ganglion cells on 100 levels and presence of hypertrophic nerves greater than 40 microns. — Marc Levitt (clinical) [Ep 8 · 11:28](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=688)
- Frozen section can only definitively rule out Hirschsprung disease (by showing ganglion cells) but cannot definitively confirm it, because confirmation requires 100 levels showing no ganglion cells anywhere, which frozen section cannot provide. — Marc Levitt (clinical) [Ep 8 · 11:37](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=697)
- Calretinin staining is used as an additional confirmatory test: if calretinin is present, it means ganglion cells are nearby; if calretinin is absent, it further confirms Hirschsprung disease. — Marc Levitt (clinical) [Ep 8 · 11:54](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=714)
- Contrast enema findings in Hirschsprung disease include rectosigmoid ratio less than 1, saw-toothing in the rectum indicating hyperperistalsis, and signs of enterocolitis visible in the left colon. — Lily Cheng (clinical) [Ep 8 · 10:40](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=640)
- For patients recovering from Hirschsprung enterocolitis who can be fed and have successful irrigations, experts recommend waiting minimum 4 weeks (possibly up to 3 months) before definitive surgery, with literature from PCPLC showing similar outcomes with delayed treatment. — Jason Frischer (clinical) [Ep 8 · 14:29](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=869)
- If a patient with Hirschsprung disease is clinically improved with irrigations but cannot be fed, diversion is a reasonable next step rather than continuing to wait. — Marc Levitt (clinical) [Ep 8 · 15:17](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=917)
- For mapping biopsies, the recommended approach is to go directly to the sigmoid (the 'money' location) rather than doing unnecessary biopsies; if frozen section shows ganglion cells in the sigmoid, no other biopsies are needed. — Marc Levitt (clinical) [Ep 8 · 16:14](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=974)
- If mapping the colon without frozen section available, biopsies should be taken from left colon, transverse colon, and hepatic flexure/right colon, because once past the hepatic flexure into distal ascending colon, pull-through becomes technically difficult. — Jason Frischer (clinical) [Ep 8 · 17:24](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=1044)
- The appendix should not be biopsied for Hirschsprung mapping because many patients' appendixes are aganglionic, and the appendix should be saved for possible future use. — Jason Frischer (clinical) [Ep 8 · 18:26](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=1106)
- When going to OR electively for pull-through and finding no ganglion cells in sigmoid or left colon, the surgeon should not proceed with pull-through that day; instead, biopsy transverse colon and hepatic flexure, do an ileostomy with frozen section confirmation, and return another day once permanent sections confirm the transition zone. — Marc Levitt (clinical) [Ep 8 · 19:32](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=1172)
- Frozen section interpretation should be done cautiously in the setting of active enterocolitis because inflammation can obscure ganglion cells and make the frozen section unreliable for decision-making. — Christy Ryan (clinical) [Ep 8 · 20:37](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=1237)
- In resource-limited settings without frozen section availability or quick access to medical care for dehydration management, bringing up a colostomy in the dilated portion is preferred over ileostomy because ileostomy patients can become dehydrated and may not have quick enough access to care. — Marc Levitt (clinical) [Ep 8 · 21:04](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=1264)
- In settings with frozen section availability and ability to manage hydration, ileostomy is preferred over leveling colostomy because colostomy mesentery becomes shortened and inflamed after division, making subsequent pull-through technically difficult with the colon sometimes not reaching. — Jason Frischer (clinical) [Ep 8 · 23:05](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=1385)
- When performing ileostomy for Hirschsprung disease, frozen section should be done on the ileostomy site to make absolutely certain it will function. — Marc Levitt (clinical) [Ep 8 · 23:43](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=1423)
- Modern technology allows pathology support for resource-limited settings: surgeons can perform segmental biopsies, do H&E stains, and send microscope images via Zoom to expert pathologists who can evaluate for ganglion cells, potentially saving 80% of colons in rectosigmoid Hirschsprung disease. — Jason Frischer (clinical) [Ep 8 · 21:41](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=1301)
- Even with elegant surgical technique that preserves the anal canal and avoids sphincter overstretch, Hirschsprung patients will still get some enterocolitis because the surgery preserves the continence mechanism, which by definition means they cannot relax their internal sphincter and therefore remain susceptible to enterocolitis. — Marc Levitt (clinical) [Ep 8 · 24:16](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=1456)
- Patients who had Hirschsprung surgery with overstretched sphincters never got enterocolitis but developed fecal incontinence requiring bowel management programs. — Marc Levitt (clinical) [Ep 8 · 24:31](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=1471)
- A published negative study showed that Botox injection at one month post-pull-through did not help prevent enterocolitis. — Marc Levitt (clinical) [Ep 8 · 26:04](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=1564)
- Cincinnati Children's Hospital is conducting a prospective study of Botox injection at the anal sphincter at the time of restoring intestinal continuity for enterocolitis prevention, with mid-thirties patient enrollment, though some patients in the protocol have still developed enterocolitis and increased diaper rash has been observed. — Jason Frischer (clinical) [Ep 8 · 27:05](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=1625)
- Families should be sent home with equipment to irrigate and taught how to irrigate before the pull-through so they can practice, avoiding the need for catheter passage through the anastomosis on post-op day 5 when ready for discharge. — Jason Frischer (clinical) [Ep 8 · 28:04](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=1684)
- Late-onset Hirschsprung disease patients tend to present with more subtle symptoms, more constipation, and less enterocolitis compared to neonatal presentations — Marc Levitt (clinical) [Ep 12 · 3:21](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823?t=201)
- Frozen section pathology for Hirschsprung disease can be misleading; marking biopsy sites with prolene stitches allows for reliable permanent pathology before pull-through — Martin Latcher (clinical) [Ep 12 · 4:08](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823?t=248)
- If biopsy sites are not marked, it is very hard to find the biopsies in the future — Marc Levitt (clinical) [Ep 12 · 4:20](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823?t=260)
- Laparoscopic approach allows preservation of the colonic arcade without overstretching the anus and provides a well-perfused, tension-free pull-through — Martin Latcher (clinical) [Ep 12 · 4:51](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823?t=291)
- The laparoscopic portion of Hirschsprung pull-through minimizes the amount of anal stretch required and is very precise and elegant — Marc Levitt (opinion) [Ep 12 · 5:06](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823?t=306)
- In older children with Hirschsprung disease where the transition zone level is confirmed, transanal-only approach may be considered because you know exactly where the transition zone is and can reach it — Marc Levitt (clinical) [Ep 12 · 5:21](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823?t=321)
- Taking biopsies at the time of ileostomy can result in adhesions of former biopsy sites with the lateral abdominal wall, which is a disadvantage — Martin Latcher (clinical) [Ep 12 · 7:23](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823?t=443)
- The anastomotic donut should be cut into 4 quadrants to ensure ganglion cells are present in all quadrants, because the transition zone is sometimes like a lip and not circumferential — Martin Latcher (clinical) [Ep 12 · 7:53](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823?t=473)
- Sending the entire donut for pathology analysis is a lot of work for pathologists and is used more as final pathology confirmation rather than intraoperative decision-making — Marc Levitt (clinical) [Ep 12 · 10:31](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823?t=631)
- The common teaching to go 5 centimeters above the transition zone is not actually true; there is a longer transition zone in many cases — Marc Levitt (clinical) [Ep 12 · 11:14](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823?t=674)
- There are advantages to having the ultimate pull-through nice and straight (usually upper sigmoid) if you ever need to irrigate — Marc Levitt (clinical) [Ep 12 · 11:28](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823?t=688)
- It is very important to send a cube-shaped full thickness specimen, not a diamond shape; the seromuscular layer square needs to be the same size square as the mucosa to prevent errors from tangential cutting — Marc Levitt (clinical) [Ep 12 · 11:49](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823?t=709)
- Ganglionosis should be visualized like a paint can where ganglion cells are dripping down the sides, not as concentric circles; you could theoretically biopsy in a transition zone where there is only a drip of paint — Marc Levitt (clinical) [Ep 12 · 12:18](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823?t=738)
- Pathologists will refuse to do analysis unless you give them submucosa; checking seromuscular layer only is a cardinal sin because it could have ganglion cells while the submucosal layer has hypertrophic nerves — Marc Levitt (clinical) [Ep 12 · 13:10](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823?t=790)
- Pathologists doing it right need to check all levels and confirm that not only is the seromuscular layer good, but the submucosal layer is good — Marc Levitt (clinical) [Ep 12 · 13:42](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823?t=822)
- After a couple of weeks post-operatively, there is no chance to go back in again for re-operation, and results of reoperative transanal pull-throughs are not great with high rates of anastomotic dehiscence — Martin Latcher (clinical) [Ep 12 · 14:13](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823?t=853)
- One reason for high dehiscence rates in delayed reoperative surgery is that you can never re-enter the anal canal in the same plane — Martin Latcher (clinical) [Ep 12 · 14:37](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823?t=877)
- If you go back early, you can release the stitches and arrive in the same plane again to do re-anastomosis to the anal canal exactly in the same plane where you went in initially, which is why this case did not face any dehiscence — Martin Latcher (clinical) [Ep 12 · 14:37](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823?t=877)
- Reoperative Hirschsprung transanal surgery is not as complicated if you go back in early — Martin Latcher (clinical) [Ep 12 · 15:07](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823?t=907)
- The surgical lesson is that it is hard to stop and say time out, I need to back up and solve the problem now and not let it cascade — Marc Levitt (opinion) [Ep 12 · 16:12](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823?t=972)

## Host summaries
Recaps by a host of what the experts said — not the host's own clinical position.
- For distal disease, only distal branches of the IMA need to be taken, but for left colon involvement, the IMA may need to be taken to get the left colon or splenic flexure to reach. — Rod Gerardo summarizing the discussion [Ep 5 · 12:35](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=755)
- The reinforcement layer of sutures is critical to lining the two pieces of bowel up so that mucosa edge meets mucosa edge, which is the key part of the anastomosis. — Rod Gerardo summarizing the discussion [Ep 5 · 17:01](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-classic-hirschsprung-disease-surgical-technique-6888?t=1021)
- Dr. Levitt has performed over 5,000 colorectal procedures. — Marc Levitt summarizing a resource [Ep 4 · 2:31](https://library.globalcastmd.com/watch/hirschsprung-disease-pediacast-287-13877?t=151)
- Frozen sections can rule out Hirschsprung disease but cannot definitively rule it in. — Em Gootee summarizing the discussion [Ep 9 · 5:23](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-5-proximal-hirschsprung-disease-surgical-technique-6847?t=323)
- The principle of 'do no harm' is especially important for complex Hirschsprung cases where functional outcomes depend on preserving maximal colon length. — Em Gootee summarizing the discussion [Ep 9 · 10:37](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-5-proximal-hirschsprung-disease-surgical-technique-6847?t=637)
- If going to OR for elective pull-through and sigmoid/left colon biopsies show no ganglion cells, should not proceed with pull-through that day; instead biopsy transverse colon and hepatic flexure, do ileostomy with frozen section confirmation, and return another day for definitive repair. — Philippa Jalius summarizing the discussion [Ep 7 · 19:30](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-13848?t=1170)
- Reinforcement layer is critical to line up bowel pieces for mucosa-to-mucosa anastomosis — Rod Gootee summarizing the discussion [Ep 6 · 17:00](https://library.globalcastmd.com/watch/the-colorectal-quiz-episode-4-13864?t=1020)
- Cold saline should not be used for irrigations in small children because it can significantly change the child's temperature. — Felipe Glu summarizing the discussion [Ep 8 · 8:46](https://library.globalcastmd.com/watch/colorectal-quiz-episode-46-hirschsprung-s-disease-13821?t=526)
- In babies with Hirschsprung disease, you really want to know the level before starting because the contrast study is only about 90% accurate — Felipe Childish summarizing the discussion [Ep 12 · 5:38](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823?t=338)
- According to Dane Teitelbaum's paper, if you are not happy with permanent pathology, going back in early is not a bad idea because adhesions are not so firm and it is easy to redissect around the pull-through — Martin Latcher summarizing a resource [Ep 12 · 9:21](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823?t=561)
- Fred Reichman's quote: no matter how far down the wrong road you have gone, you can still turn around — Marc Levitt summarizing a resource [Ep 12 · 15:55](https://library.globalcastmd.com/watch/colorectal-quiz-episode-44-hd-frozen-section-13823?t=955)

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