7 views 0 likes

StayCurrentMD

GCMD Space · View profile →

Malrotation

Video Published 2018-11-10 Updated 2026-08-01

Timestops (8)

Topic Overview

A panel discussion examining clinical decision-making in pediatric malrotation cases, focusing on classification systems, risk stratification by age and anatomy, and management controversies. The discussants debate operative versus observational approaches across five cases: an asymptomatic teenager with non-rotation, a cardiac infant requiring gastrostomy with incidental malrotation findings, a toddler with non-bilious vomiting and malrotation, and a patient with situs abnormality. Core clinical tensions include the utility of laparoscopic Ladd procedures in asymptomatic patients, the role of mesenteric width assessment, management of high-risk cardiac patients, and whether Ladd bands themselves cause volvulus risk.

Key Takeaways

  • Most volvulus occurs early: 70% by 2 months, 90% by 2 years of age—risk stratify intervention timing accordingly. (27:30)
  • Normal barium enema (20% false-negative) and ultrasound do not rule out malrotation or volvulus—maintain clinical suspicion. (19:27)
  • Mesenteric width <50% abdominal diameter indicates narrow pedicle requiring intervention to prevent volvulus. (1:53)
  • Heterotaxy patients have 30-50% Ladd complication rates; asymptomatic cases showed zero volvulus over 4 years—consider observation. (24:59)
  • Ladd bands cause duodenal compression but not volvulus; narrow mesenteric base is the true volvulus risk factor. (4:02)

Inside this episode

Kai, the Library's AI content creator, listened to this episode and mapped who's speaking, the chapters, key claims, and cases. Every item links to the exact moment in the recording.

AI-enriched

Who's speaking

  • Speaker 1 — host
  • Todd — guest
  • Jack — guest
  • Wit — guest
  • Tim — guest
  • Speaker 6 — guest

Chapters

  • 0:02Case 1: Asymptomatic Teenager with Non-Rotation — Discussion of a 15-year-old with transient abdominal pain and upper GI concerning for malrotation. Panel debates classification (complete non-rotation vs malrotation), need for cecal position assessment, and whether laparoscopic Ladd procedure is indicated in asymptomatic patients.
  • 5:08Ladd Bands and Volvulus Risk — Debate over whether Ladd bands cause midgut volvulus or are merely markers of shortened mesentery. Discussion of mesenteric width as key risk factor and the distance between ligament of Treitz and ileocecal junction as predictor of volvulus risk.
  • 9:51Case 2: Cardiac Infant Requiring Gastrostomy — Three-month-old with hypoplastic left heart syndrome, poor feeding, and incidental finding of low-lying ligament of Treitz on upper GI. Panel discusses anesthetic risk, timing of intervention, and whether to proceed with Ladd procedure in high-risk cardiac patient.
  • 19:44Heterotaxy and Malrotation Complications — Discussion of complication rates (30-50%) in heterotaxy patients undergoing Ladd procedures. Review of data showing low volvulus rates in asymptomatic heterotaxy patients and debate over screening upper GI studies in cardiac patients.
  • 24:20Case 4: Toddler with Non-Bilious Vomiting — Sixteen-month-old with frequent non-bilious emesis and malrotation on imaging. Extended debate over whether to perform Ladd procedure alone, add fundoplication, or trial medical management first. Discussion of Ladd bands as cause of duodenal obstruction versus reflux as primary etiology.
  • 37:10Case 5: Situs Abnormality and Malrotation — Twelve-year-old with situs abnormality and malrotation. Brief discussion of technical challenges of laparoscopic Ladd procedure in situs patients and application of mesenteric width principle regardless of bowel position.

Key claims

  • 27:3070% of volvulus cases occur in the first two months of life — Speaker 1
  • 27:3090% of volvulus cases occur by the first two years of life — Speaker 1
  • 19:27In 20% of cases with true malrotations of the fore and mid-gut, you have a normal barium enema — Speaker 1
  • 19:55A normal ultrasound does not rule out volvulus — Speaker 1
  • 4:02Ladd bands do not cause midgut volvulus — Jack
  • 4:25Ladd bands are continuation tissue along the mesentery that when divided allows the mesentery to splay out — Todd
  • 4:08You get Ladd bands if you have a shortened mesentery; the Ladd bands do not cause shortening of the mesentery — Jack
  • 24:59Complication rate in heterotaxy patients undergoing Ladd procedures is between 30 and 50% — Speaker 1
  • 25:50In heterotaxy patients without bilious emesis and symptoms, there were no cases of volvulus in 4 years of follow-up — Speaker 1
  • 3:52The key reason to operate on an asymptomatic patient is to avoid midgut volvulus — Jack
  • 1:53The key point is the distance between the ligament of Treitz and the ileocecal junction — Jack
  • 39:27If the distance between ligament of Treitz and ileocecal junction is less than half the diameter of the abdominal cavity, intervention is needed — Jack
  • 11:53Dilated loops of bowel will always give you a low lying ligament of Treitz — Todd
  • 8:16Laparoscopic Ladd procedure can be performed effectively even in newborns — Tim
  • 15:19Cardiac patients with single ventricle physiology between first stage and Glenn procedure do not stratify out to be at higher risk for reflux complications — Todd
  • 36:39Ladd bands can cause compression of the duodenum but the band itself is not risky for volvulus — Todd
  • 36:53The risk requiring operation is bilious vomiting and narrowing of the pedicle — Todd
  • 41:15In patients with reversed mesenteric vessels on ultrasound, there was never a case where vessels were normal in a patient who had risk for volvulus with narrow base mesentery — Jack
  • 37:16Ladd bands are teleologically an attempt of the body to fuse the cecum to the lateral peritoneal wall — Wit
  • 37:10Patients with high-riding cecum are more likely to have obstructive or significant Ladd bands — Wit

Cases discussed

  • 0:4615-year-old male with transient abdominal pain and non-bilious emesis two weeks prior after eating at picnic where others became ill. CT at outside ED negative for appendicitis but concerning for malrotation without volvulus.
  • 9:523-month-old, 37-week gestational age infant with hypoplastic left heart syndrome status post first-stage correction, weighing approximately 5 kg. Consulted for gastrostomy tube placement due to feeding difficulties and poor suck.
  • 26:0716-month-old male toddler with frequent non-bilious emesis. Eats well with no abdominal pain or other GI symptoms.
  • 38:0412-year-old boy presenting to ED with transient right lower quadrant pain, diarrhea, and emesis.

Points of disagreement

  • 4:02Whether Ladd bands cause volvulus or are merely markers of shortened mesentery
    • Jack: Ladd bands do not cause midgut volvulus; you get Ladd bands if you have a shortened mesentery, not the other way around
    • Todd: Dividing the filmy tissue on top of the mesentery allows it to splay out and widens the mesentery, suggesting bands contribute to narrowing
  • 35:20Management of asymptomatic malrotation
    • Todd: Would operate on asymptomatic malrotation via laparoscopy if narrow mesentery suspected
    • Jack: Would operate on any suspected malrotation if there's chance of narrow mesentery
    • Todd: Would not operate on asymptomatic malrotation with non-bilious vomiting if patient gaining weight and clinically well
  • 29:18Whether to perform fundoplication in vomiting patient with malrotation
    • Tim: Would do laparoscopy first, look at duodenum and mesentery, and not do fundoplication at same time
    • Todd: Would discuss with family preoperatively and potentially do fundoplication if no impressive Ladd bands found
    • Jack: Would try medical management first rather than proceeding directly to fundoplication
  • 31:46Need for preoperative reflux studies in vomiting patient
    • Todd: Does not need pH probe or milk scan; clinical scenario of vomiting is sufficient indication
    • Jack: Should trial medical management before surgery, implying studies might guide this decision

Open questions

  • What distance between ligament of Treitz and ileocecal junction is sufficient to prevent volvulus?
  • Can imaging reliably determine mesenteric width to stratify volvulus risk?
  • Should asymptomatic malrotation in older children and adolescents be observed or surgically corrected?
  • What is the role of laparoscopy in heterotaxy patients with incidental malrotation findings?
  • Do Ladd bands directly contribute to volvulus risk or are they merely markers of shortened mesentery?
  • Should patients with malrotation and non-bilious vomiting undergo trial of medical management before surgical intervention?
  • What is the optimal timing for Ladd procedure in high-risk cardiac patients requiring gastrostomy?
This episode was analyzed and enriched by Kai, the Library's AI content creator. Every item links to the moment it comes from — click a timestamp to listen in context.

Keywords

Hashtags

Transcript

Comments

Loading comments…