4 views 0 likes

StayCurrentMD

GCMD Space · View profile →

Posterior Sagittal Anorectaplasty-Female Part II: Pediatric Colorectal...

Video Published 2019-01-11 Updated 2026-06-22

Timestops (8)

Topic Overview

Live intraoperative discussion of an unexpected finding during posterior sagittal anorectoplasty for a rectovestibular fistula: the patient has vaginal agenesis with a rudimentary upper vaginal segment and uterus but no functional vagina. The surgical team debates whether to create a neovagina immediately using sigmoid colon versus the mobilized rectum, whether to connect the neovagina to the rudimentary uterine remnant given uncertain cervical anatomy, and whether a protective colostomy is indicated. The case illustrates real-time decision-making when anatomy differs significantly from preoperative expectations.

Key Takeaways

  • Absent vagina with rectovestibular fistula occurs ~1/500 cases; areolar plane between rectum and urethra is notably thicker. (3:57)
  • Sigmoid colon is preferred over rectum for neovagina (98% consensus) to preserve rectal storage and physiologic function. (0:47)
  • Connecting neovagina to uterus without cervix risks ascending PID with no reproductive benefit; no live births reported. (15:55)
  • Optimal timing for neovagina creation is during initial rectal mobilization; delayed reconstruction faces scarred perineum. (20:10)

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

  • Don — guest
  • Mark — guest
  • Speaker 3 — host
  • Jonathan Pierre — guest
  • Speaker 5 — guest
  • Jerry — guest

Chapters

  • 0:12Initial consultation and decision to create neovagina — Consultants discuss whether to create the neovagina immediately versus defer, and whether to use the mobilized rectum or sigmoid colon. Audience poll favors sigmoid (98%). Surgeon decides to proceed with laparotomy to define internal anatomy before final decisions.
  • 12:42Laparotomy findings and uterine management debate — Surgeon identifies fallopian tubes, ovaries, rudimentary upper vagina ending blindly, and uterus. Gynecology consultant advises against connecting neovagina to uterus without cervix due to pyometra risk, but suggests retaining structures for future uterine transplant possibility. Team debates removing versus preserving uterine remnant.
  • 18:12Neovagina construction and uterine connection decision — Surgeon plans sigmoid segment harvest preserving vascular arcade. After further exploration identifies what appears to be cervical tissue and lumen, decides to connect uterus to neovagina using Leash-Regoire technique despite infection risk. Rationale is to preserve reproductive structures while providing drainage.
  • 26:17Neovagina pull-through and colostomy debate — Surgeon completes anastomosis of uterus to neovagina and begins pull-through of sigmoid neovagina. Team debates need for protective colostomy. Surgeon describes pedicle orientation passing through the space where bowel will be reanastomosed.

Key claims

  • 1:41In the surgeon's personal series of 8 patients with rectovestibular fistula and no vagina, only one had an imperforate hymen with actual vagina present; the others had no uterus or fallopian tubes — Don
  • 0:47Sigmoid colon pulled down to function as rectum does not have the same storage qualities and physiologic properties as native rectum — Don
  • 3:57The areolar dissection plane between rectum and urethra is much thicker when vagina is absent — Mark
  • 6:2398% of 51 surveyed participants recommended using sigmoid rather than rectum for neovagina construction — Speaker 3
  • 14:00The rudimentary vagina ended blindly at the back of the bladder with no connection to urinary system, explaining absence of hydrocolpos — Mark
  • 14:43This anatomic variant (rectovestibular fistula with absent vagina) occurs approximately once per 500 cases — Mark
  • 15:18In the surgeon's experience of approximately 40 cases of absent vagina, 3 had usable vagina for pull-through: one extremely low requiring only introitoplasty, two others that delivered up and reached perineum — Mark
  • 15:55For congenital cervical agenesis, there is no evidence that retaining the uterus and connecting to vagina is helpful; there have been no successful live births and the problem has been pyometra and ascending infection — Jerry
  • 16:51In the absence of a cervix, there is no evidence as of 2014 that retaining uterine cavity is beneficial for reproduction and there is evidence it can be harmful due to pyometra — Jerry
  • 17:53Creating an outflow tract from a uterus without cervix sets up risk for ascending PID without reproductive benefit — Jerry
  • 20:10The ideal time to create neovagina is when rectum has been mobilized; waiting creates a scarred perineum that makes subsequent neovagina placement more difficult — Mark
  • 21:46Staplers may be used for bowel division but staple lines should be removed to avoid leaving staples on any anastomosis — Mark
  • 23:2575% of 32 respondents voted to leave the uterus intact rather than remove it — Speaker 3
  • 25:03Tactile feedback suggesting cervical presence included inability to pass forceps through the back of uterus and feeling firmness as if encountering upper vaginal surface — Mark
  • 29:09The neovaginal pedicle passes through the space where the bowel will be reanastomosed, between the rectum and sigmoid — Mark

Cases discussed

  • 0:12Female infant with rectovestibular fistula found intraoperatively to have vaginal agenesis with rudimentary upper vaginal segment, uterus, fallopian tubes, and ovaries but no functional vagina

Points of disagreement

  • 0:26Whether to use rectum or sigmoid colon for neovagina
    • Don: Use rectum as rectum and harvest sigmoid for neovagina because sigmoid does not function well as rectum
    • Speaker 3: 98% of audience (51 respondents) voted to use sigmoid for neovagina
  • 15:55Whether to connect neovagina to uterine remnant
    • Jerry: Do not connect neovagina to uterus without cervix due to pyometra risk; either remove uterus or leave it closed without outflow tract
    • Mark: After finding possible cervical tissue and lumen, decided to connect uterus to neovagina to preserve reproductive structures and provide drainage
    • Speaker 5: Do not remove anything or create anastomosis until family discussion is complete
  • 19:58Timing of neovagina creation
    • Speaker 3: Consider stopping, having family discussion, and creating neovagina at another time
    • Mark: Ideal time is now when rectum is mobilized; waiting creates scarred perineum

Open questions

  • Should a protective colostomy be performed given the complex reconstruction?
  • What is the long-term reproductive potential of connecting a neovagina to a uterus with uncertain cervical anatomy?
  • What are the infection risks of connecting the uterine remnant to the neovagina versus leaving it closed?
  • How should the family be counseled about the unexpected findings and surgical decisions made intraoperatively?
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.

Uterine Preservation Without Cervix: Infection Risk Versus Reproductive Potential

The points where the speakers disagreed, with each position presented side by side. Written by Kai from the episode transcript and reviewed before publishing.

For specialists · Points of disagreement · AI-written, human-reviewed

The Clinical Scenario

During posterior sagittal anorectoplasty for rectovestibular fistula, intraoperative findings revealed a uterus with no identifiable cervix and a rudimentary vagina that ended blindly at the back of the bladder 14:00. This anatomic variant occurs approximately once per 500 cases 14:43. The surgical team faced an immediate decision: remove the uterus, leave it closed without outflow, or attempt connection to the planned neovagina 14:00 14:43.

The Case for Removal or Isolation

One discussant argued against creating any connection between the uterus and neovagina when cervical tissue is absent 15:55. The position rests on evidence from congenital cervical agenesis: "there's no evidence that retaining the uterus and connecting to the vagina is helpful. There haven't been successful live births from that, and the problem has been like pyometria and ascending infection" 15:55. As of 2014, no evidence supports reproductive benefit from retaining a uterine cavity without cervix, while evidence documents harm from pyometra 16:51.

The mechanism of harm is straightforward: creating an outflow tract from a uterus without cervix establishes risk for ascending pelvic inflammatory disease without providing reproductive benefit 17:53. The uterus either requires removal or should remain closed without connection to the neovagina 15:55 17:53. If left in place and closed, laparoscopic removal remains an option if infection develops later 15:55.

The Case for Connection

The operating surgeon took a different position after intraoperative findings suggested cervical tissue might be present 25:03. Tactile feedback included inability to pass forceps through the back of the uterus and firmness suggesting an upper vaginal surface 25:03. After flushing both sides of the structure, the surgeon became "very confident" that a cervix existed and decided to connect the uterus to the neovagina to preserve reproductive structures and provide drainage 25:03.

This approach acknowledges that while most cases of absent vagina lack functional reproductive anatomy, rare exceptions exist 15:18. In the surgeon's experience of approximately 40 cases of absent vagina, three had usable vagina for pull-through 15:18. The decision to connect rather than remove preserves the possibility—however remote—that this represents one of those anatomic variants where reproductive potential exists 15:18 25:03.

The Procedural Disagreement

A third position emerged: defer the decision entirely 21:13. One discussant stated: "I don't see any reason to anastomos this bowel to that, and so, but I just wouldn't remove it. You have a lot to discuss with the family, and I wouldn't remove anything at all until you do" [q9]. This approach avoids irreversible decisions during an already complex operation 21:13.

This position intersected with a second disagreement about timing of neovagina creation 20:10 21:13. One discussant questioned proceeding with neovagina construction at all, suggesting the operation should stop for family discussion with neovagina creation at another time 21:13. The operating surgeon disagreed, arguing that the optimal time to create the neovagina is when the rectum has been mobilized, and that delaying would result in operating through a scarred perineum 20:10.

Where They Agreed

All discussants agreed on several points: ovaries must be preserved, as they pose no problem and provide essential endocrine function 15:55. The neovaginal pedicle would pass through the space where bowel would be reanastomosed, between rectum and sigmoid 29:09. If the uterus is left in place without connection, it will likely develop hematometra at menarche, providing time for family counseling 21:13.

The audience poll showed 75% of respondents favoured leaving the uterus intact rather than removing it 23:25, though this vote occurred before the full discussion of connection versus isolation 23:25.

What Would Resolve It

The discussants did not articulate what evidence would definitively settle whether connection provides benefit when cervical tissue is questionable. The surgeon's intraoperative assessment of cervical presence relied on tactile feedback and ability to flush the structure—subjective findings without histologic confirmation 25:03. The fundamental question remains unresolved: at what threshold of cervical certainty does connection shift from harmful (ascending infection without benefit) to potentially beneficial (preserved reproductive potential with acceptable infection risk)? Without long-term outcome data on patients with borderline cervical anatomy who had uterine-neovaginal connection, this remains a judgment call informed by experience with the clearly absent cervix cases that uniformly do poorly 15:55 16:51 17:53.

Takeaways from this story

  • Connecting uterus to neovagina without confirmed cervix risks ascending PID with no documented reproductive benefit as of 2014
  • Tactile feedback suggesting cervical presence included inability to pass forceps through uterine back and firmness resembling vaginal surface
  • Creating neovagina when rectum is mobilized avoids operating through scarred perineum; delaying makes subsequent placement more difficult
  • In 40 cases of absent vagina, only 3 had usable vagina for pull-through; this variant occurs approximately once per 500 cases

Keywords

Hashtags

Transcript

Comments

Loading comments…