Clinical Characteristics and Management of Neovaginal Fistulas After Vaginoplasty in Transgender Women

Management of vaginoplasty canal complications

PURPOSE OF REVIEW

Increasing uptake of gender affirming surgery has allowed for a wider breadth of publication examining complications associated with vaginoplasty. This review aims to provide a comprehensive overview of complications associated with vaginoplasty procedures, focusing on intraoperative, early postoperative, and delayed postoperative complications across different surgical techniques.

RECENT FINDINGS

Intraoperative complications such as bleeding, injury of the rectum, urethra and prostate, and intra-abdominal injury are discussed, with insights into their incidence rates and management strategies. Early postoperative complications, including wound dehiscence, infection, and voiding dysfunction, are highlighted alongside their respective treatment approaches. Moreover, delayed postoperative complications such as neovaginal stenosis, vaginal depth reduction, vaginal prolapse, rectovaginal fistula, and urinary tract fistulas are assessed, with a focus on their etiology, incidence rates, and management options.

SUMMARY

Vaginoplasty complications range from minor wound issues to severe functional problems, necessitating a nuanced understanding of their management. Patient counseling, surgical approach, and postoperative care optimization emerge as crucial strategies in mitigating the impact of complications. Standardizing complication reporting and further research are emphasized to develop evidence-based strategies for complication prevention and management in vaginoplasty procedures.

Vaginal self-lubrication following peritoneal, penile inversion, and colonic gender-affirming vaginoplasty: a physiologic, anatomic, and histologic review

INTRODUCTION

Vaginal self-lubrication is central to the sexual satisfaction and healthy genitourinary function of patients who have undergone gender-affirming vaginoplasty (GAV). Secretory capacities of different neovaginal lining tissues have been variably described in the literature, with little evidence-based consensus on their success in providing a functionally self-lubricating neovagina. We review the existing neovaginal lubrication data and the anatomy, histology, and physiology of penile and scrotal skin, colon, and peritoneum to better characterize their capacity to be functionally self-lubricating when used as neovaginal lining.

OBJECTIVES

The study sought to review and compare the merits of penile and scrotal skin grafts, spatulated urethra, colon, and peritoneal flaps to produce functional lubrication analogous to that of the natal vagina in the setting of GAV.

METHODS

We conducted a systematic review following PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines. Medline, EMBASE, ClinicalTrials.gov, and the Cochrane Library databases were searched for peer-reviewed studies published prior to December 12, 2022, that (1) included data specific to transfeminine individuals; (2) were full-text randomized controlled studies, case reports, case series, retrospective cohort studies, prospective cohort studies, qualitative studies, and cross-sectional studies; and (3) included specific discussion of vaginal lubrication or fluid secretion following GAV utilizing penile skin, colonic tissue, or peritoneum.

RESULTS

We identified 580 studies, of which 28 met our inclusion criteria. Data on neovaginal lubrication were limited to qualitative clinician observations, patient-reported outcomes, and satisfaction measures. No studies quantifying neovaginal secretions were identified for any GAV graft or flap technique. Anatomically, penile and scrotal skin have no self-lubricating potential, though penile inversion vaginoplasty may produce some sexually responsive secretory fluid when urethral tissue is incorporated and lubricating genitourinary accessory glands are retained. Colonic and peritoneal tissues both have secretory capacity, but fluid production by these tissues is continuous, nonresponsive to sexual arousal, and likely inappropriate in volume, and so may not meet the needs or expectations of some patients. The impact of surgical tissue translocation on their innate secretory function has not been documented.

CONCLUSIONS

None of penile/scrotal skin, colon, or peritoneum provides functional neovaginal lubrication comparable to that of the adult natal vagina. Each tissue has limitations, particularly with respect to inappropriate volume and/or chronicity of secretions. The existing evidence does not support recommending one GAV technique over others based on lubrication outcomes. Finally, difficulty distinguishing between physiologic and pathologic neovaginal fluid secretion may confound the assessment of neovaginal self-lubrication, as many pathologies of the neovagina present with symptomatic discharge.

Genital gender-affirming surgery for transgender women

Transgender women may opt for genital gender-affirming surgery (gGAS), which comprises bilateral orchiectomy, gender-affirming vulvoplasty, or vaginoplasty. Vaginoplasty is chosen most frequently in this population, penile inversion vaginoplasty being the surgical gold standard. In selected cases, skin graft vaginoplasty, intestinal vaginoplasty, or peritoneal vaginoplasty may be indicated. In this article, we discuss the various types of gGAS for transgender women, (contra)-indications, intraoperative considerations, techniques, surgical outcomes, and postoperative patient-reported outcomes.

Principles and outcomes of gender-affirming vaginoplasty

Vaginoplasty is the most frequently performed gender-affirming genital surgery for gender-diverse people with genital gender incongruence. The procedure is performed to create an aesthetic and functional vulva and vaginal canal that enables receptive intercourse, erogenous clitoral sensation and a downward-directed urine stream. Penile inversion vaginoplasty (PIV) is a single surgical procedure involving anatomical component rearrangement of the penis and scrotum that enables many patients to meet these anatomical goals. Other options include minimal-depth, peritoneal and intestinal vaginoplasty. Patient quality of life has been shown to improve drastically after vaginoplasty, but complication rates have been documented to be as high as 70%. Fortunately, most complications do not alter long-term postoperative clinical outcomes and can be managed without surgical intervention in the acute perioperative phase. However, major complications, such as rectal injury, rectovaginal fistula, and urethral or introital stenosis can substantially affect the patient experience. Innovations in surgical approaches and techniques have demonstrated promising early results for reducing complications and augmenting vaginal depth, but long-term data are scarce.

Outcome measures reported following feminizing genital gender affirmation surgery for transgender women and gender diverse individuals: A systematic review

Background

Feminizing genital gender affirmation surgery (fgGAS) may be an essential adjunct in the care of some transgender women and gender diverse individuals with gender incongruence. However, the comparison of different techniques of fgGAS may be confounded by variable outcome reporting and the use of inconsistent outcomes in the literature. This systematic review provides the most in-depth examination of fgGAS studies to date, and summarizes all reported outcomes, definitions, and the times when outcomes were assessed following these surgical interventions. Aims/Methods: This work intends to quantify the levels of outcome variability and definition heterogeneity in this expanding field and provides guidance on outcome reporting for future study authors. Candidate studies for this systematic review were sourced via an electronic, multi-database literature search. All primary, clinical research studies of fgGAS were included with no date limits. Paired collaborators screened each study for inclusion and performed data extraction to document the outcomes, definitions, and times of outcome assessment following fgGAS.

Results

After screening 1225 studies, 93 studies proceeded to data extraction, representing 7681 patients. 2621 separate individual outcomes were reported, 857 (32.7%) were defined, and the time of outcome assessment was given for 1856 outcomes (70.8%) but relied on nonspecific ranges of follow-up dates. "Attainment of orgasm", "Neovaginal stenosis", and "Neovaginal depth/length" were among the most commonly reported outcomes. Profound heterogeneity existed in the definitions used for these and for all outcomes reported in general.

Discussion

The results demonstrate a need for clear outcomes, agreed definitions, and times of outcome assessment following fgGAS in transgender women and gender diverse individuals. The adoption of a consistent set of outcomes and definitions reported by all future studies of fgGAS (a Core Outcome Set) will aid in improving treatment comparisons in this patient group. This review is the first step in that process.

Nonhormone-Related Histologic Findings in Postsurgical Pathology Specimens From Transgender Persons

OBJECTIVES

The objective of this review is to characterize the literature addressing postprocedural complications in persons undergoing gender-affirming surgeries.

METHODS

A literature search using the OVID MEDLINE and PubMed databases was performed to identify all studies describing histologic findings in surgical pathology specimens from transgender persons from 1946 to April 2021. The studies describing postsurgical complications were categorized based on anatomic site, type of complication, study design, publication region, and date.

RESULTS

Thirty-nine studies describing postsurgical complications in transgender women were identified. The most common sites of postprocedural pathology included the breasts and neovagina, with additional studies including buttocks and thighs, cutaneous sites, and the pulmonary system. Most of the literature comprised case reports, followed by case series and comparative studies. The search did not identify any studies of complications secondary to masculinizing surgeries.

CONCLUSIONS

This body of literature is small but growing. Most studies are case reports. There are significant gaps in the literature. The literature in this area is not yet mature enough to support a meta-analysis.

Rectoneovaginal fistula after sex reassignment surgery. Description of our experience and literature review

Male-to-female reassignment surgery or vaginoplasty includes those surgical procedures that aim to recreate a functional and cosmetically acceptable female perineum with minimal scarring. The technique of choice at our center is penile inversion vaginoplasty with or without scrotal skin grafts. We present 4 cases diagnosed with rectoneovaginal fistulas treated at our center with favorable evolution. The first patient was diagnosed in the late postoperative period during dilation. She underwent 2 failed vaginal repair attempts. Finally, a temporary colostomy and a rectal flap were performed. The second patient was diagnosed 2 weeks after the initial surgery due to aggressive dilation and was treated with a temporary colostomy and secondary wound closure. The third patient was diagnosed on the fifth post-operative day after removal of the vaginal packing. Dietary restriction was indicated, and a rectal flap was performed. A fourth patient was diagnosed within the late postoperative period; she was submitted to surgical exploration and a rectal wall flap was created. Rectoneovaginal fistulas after sex reassignment surgery has an incidence of about 2-17% and they are the most common type of fistula after this procedure. In most cases, it is secondary to rectal injury during the initial surgery. The management of these fistulas ranges from primary closure, diverting colostomies, conservative management, or the performance of flaps. A multidisciplinary team approach is recommended for the diagnosis and treatment of this complication.

Vaginal Canal Reconstruction in Penile Inversion Vaginoplasty with Flaps, Peritoneum, or Skin Grafts: Where Is the Evidence?

BACKGROUND

To optimize neovaginal dimensions, several modifications of the traditional penile inversion vaginoplasty are described. Options for neovaginal lining include skin grafts, scrotal flaps, urethral flaps, and peritoneum. Implications of these techniques on outcomes remain limited.

METHODS

A systematic review of recent literature was performed to assess evidence on various vaginal lining options as adjunct techniques in penile inversion vaginoplasty. Study characteristics, neovaginal depth, donor-site morbidity, lubrication, and complications were analyzed in conjunction with expert opinion.

RESULTS

Eight case series and one cohort study representing 1622 patients used additional skin grafts when performing penile inversion vaginoplasty. Neovaginal stenosis ranged from 1.2 to 12 percent, and neovaginal necrosis ranged from 0 to 22.8 percent. Patient satisfaction with lubrication was low in select studies. Three studies used scrotal flaps to line the posterior vaginal canal. Average neovaginal depth was 12 cm in one study, and neovaginal stenosis ranged from 0 to 6.3 percent. In one study of 24 patients, urethral flaps were used to line the neovagina. Neovaginal depth was 11 cm and complication rates were comparable to other series. Two studies used robotically assisted peritoneal flaps with or without skin grafts in 49 patients. Average neovaginal depth was approximately 14 cm, and complication rates were low.

CONCLUSIONS

Skin grafts, scrotal flaps, urethral flaps, and peritoneal flaps may be used to augment neovaginal canal dimensions with minimal donor-site morbidity. Further direct comparative data on complications, neovaginal depth, and lubrication are needed to assess indications in addition to advantages and disadvantages of the various lining options.

The Management of Complications of Feminizing Gender Affirming Genital Surgery

Penile inversion vaginoplasty is the most common technique used for gender affirming genital surgery in the treatment of gender dysphoria among transwomen. As vaginoplasty becomes more widely available, the management of associated complications has become its own field. There is a relative dearth of literature on surgery for complications following vaginoplasty. This review illustrates surgical technique and management options for patient reported complaints and complications following vaginoplasty. The goal of this manuscript is 2-fold (1) to introduce community surgeons to common postoperative issues they may encounter and (2) provide a systematic operative approach to complications for reconstructive surgeons who see transgender patients regularly.

[Gender reassignment surgery from male to female]

For many trans*women, the surgical assignment of the male genital into a female is a fundamental part of the transition. Erogenous sensation of the neoclitoris is achieved by meticulous preparation of the penile glans with the neurovascular bundle. Several techniques are available for the formation of a neovagina, the penile inversion technique developed by Burou in the 1950s being the gold standard. With this technique, the inverted penile shaft skin is used as a pedicled flap to line the neovaginal canal. Alternatively, free skin grafts can be used, which serve primarily as a technique for redo procedures. Another technique is the use of intestinal segments to line the vaginal canal. This method is mostly used for redo procedures, but can also be performed primarily if penile skin is too small. Due to the numerous steps involved in the preparation, a wide variety of complications must be expected. Injury to the rectum during dissection of the neovaginal space, with an incidence of 4.5%, represents the greatest challenge. The most common complications are urethra-associated; hereby both a deviation of the urinary stream and strictures of the urethra are possible. The subjective satisfaction of trans*women with the surgical outcome is high and is reported in various studies to be 72-92%. On the basis of validated questionnaires it could also be shown that gender reassignment surgery leads to an increase in the trans*specific quality of life and promotes both subjectively perceived well-being and sexual satisfaction.

Orchiectomy as Bridge or Alternative to Vaginoplasty

Simple orchiectomy for gender affirmation is a low-risk, minimally invasive, generalizable procedure that eliminates circulating endogenous testosterone, allowing reduced hormonal supplementation. This article describes a technique that serves as a step in definitive phenotypic transition while maximally preserving healthy tissue for future sex reassignment surgery. Orchiectomy should be offered routinely as a bridge or alternative to vaginoplasty, particularly in the setting of limited access to specialized centers for transgender surgery.

Vaginal Dilator Therapy: A Guide for Providers for Assessing Readiness and Supporting Patients Through the Process Successfully

Vaginal dilator therapy is used to increase vaginal length for vaginal agenesis, to increase vaginal width for vaginal narrowing, and to prevent or treat stenosis after vaginal surgery. Although it is an effective therapy, many reproductive health providers have had little training on how to guide patients through this therapy. The purpose of this review is to educate providers on how to assess patient readiness and how to support patients through the process of vaginal dilation.

Overview of surgical techniques in gender-affirming genital surgery

Gender related genitourinary surgeries are vitally important in the management of gender dysphoria. Vaginoplasty, metoidioplasty, phalloplasty and their associated surgeries help patients achieve their main goal of aligning their body and mind. These surgeries warrant careful adherence to reconstructive surgical principles as many patients can require corrective surgeries from complications that arise. Peri-operative assessment, the surgical techniques employed for vaginoplasty, phalloplasty, metoidioplasty, and their associated procedures are described. The general reconstructive principles for managing complications including urethroplasty to correct urethral bulging, vaginl stenosis, clitoroplasty and labiaplasty after primary vaginoplasty, and urethroplasty for strictures and fistulas, neophallus and neoscrotal reconstruction after phalloplasty are outlined as well.

Urologic Complications After Phalloplasty or Metoidioplasty

In the past decade, issues facing transgender individuals have come to the forefront of popular culture, political discourse, and medical study. The evaluating physician should have knowledge of the reconstructed anatomy, as well as potential postoperative complications. This knowledge will aid in providing appropriate care and recognizing issues that may require specialized urologic care. Transgender anatomic definitions and a synopsis of common urologic complications specific to transmen, including urethrocutaneous fistulae, neourethral strictures, and persistent vaginal cavities are discussed.

Urologic Sequelae Following Phalloplasty in Transgendered Patients

In recent years, the issues of the transgender population have become more visible in the media worldwide. Transgender patients at various stages of their transformation will present to urologic clinics requiring general or specialized urologic care. Knowledge of specifics of reconstructed anatomy and potential unique complications of the reconstruction will become important in providing urologic care to these patients. In this article, we have concentrated on describing diagnosis and treatment of the more common urologic complications after female-to-male reconstructions: urethrocutaneous fistulae, neourethral strictures, and symptomatic persistent vaginal cavities.