Trends in Gender-Affirming Surgeries in the United States from 2010 to 2021

Introduction:  In 2017, an estimated 1.6 million adults and 150,000 teenagers identified as transgender in the United States. With ever-changing legislative developments regarding health care benefits for this population and the increasing number of patients presenting for gender-affirming surgery (GAS), there is a scarcity of literature on the temporal trends within the past decade. The objective of this study was to examine the temporal trends of the utilization of GAS. Methods:  We conducted a cross-sectional study using TriNetX, a federated research network containing deidentified aggregate patient data. Using International Code of Disease (ICD) and Current Procedural Terminology (CPT) codes, we identified patients with a diagnosis of gender dysphoria who underwent GAS from 2010 to 2021. Basic demographic information and complications were analyzed. Complications of interest included site failure, infection, and systemic complications. Results:  We identified a total of 8,403 patients who underwent GAS between January 2010 and December 2021. The number of procedures per year increased nearly 500% between 2016 and 2021 from 421 procedures to 2,224 procedures. Our demographic results were consistent with previous survey-based studies. The average age of patients who underwent masculinizing surgeries was consistently younger than those who underwent feminizing surgeries. Most patients undergoing GAS were of white race. The overall complication rate was 4.7%. Conclusion:  In conclusion, our study reveals a significant and rapid rise in the utilization of GAS in the United States, with a fivefold increase in procedures between 2016 and 2021. The demographic characteristics and low complication rates observed highlight the evolving landscape of health care for transgender individuals and the need for ongoing assessment and support in this field.

The Most-Cited Publications in Gender-Affirming Surgery: A Cross-Sectional Bibliometric Analysis

Background: Gender-affirming surgery is becoming more common among reconstructive surgeons. Bibliometric analyses are statistical evaluations of published scientific correspondence and are a validated method of measuring influence in the scientific community. As no such bibliometric analysis has been done as of yet, the purpose of this study is to identify the characteristics of the 50 most-cited peer-reviewed articles on gender-affirming surgery. Methods: The Scopus abstract and citation database was utilized in April 2020 to search for English-language publications related to gender-affirming surgery. The 50 most-cited publications that met inclusion criteria were reviewed for various metric tabulations. Results: The 50 publications have been cited a total of 4402 times. Thirty-one (62%) were published in 2000 or later. Phalloplasty was the most discussed surgical technique, and 18 of the articles focused on female-to-male (FtM) patients. Case series (46%) and review articles (24%) were most common and there were no Level I or Level II studies. The Netherlands contributed the most, with 13 articles. Among the most frequent keywords in the 50 abstracts were "flap" and "complication". The earliest author keywords used were "transsexual" and "sex reassignment". Conclusions: The keyword usage in these abstracts over time seems to follow the trend of a more socially inclusive lexicon. A focus on studies with a higher level of evidence may optimize surgeon education and more appropriately guide clinical practice. This study reveals that the most influential and commonly referenced studies may not be sufficient to appropriately guide clinical practices.

Frequency and Characteristics of Postoperative Neuropathy in Individuals on Gender-Affirming Hormone Therapy Undergoing Gender Affirmation Surgery: A Retrospective Cohort Study

Introduction Gender affirmation surgery includes procedures of the face, larynx, chest, reproductive system, external genitalia, and adipose tissue performed to ameliorate incongruence between gender identity and phenotype. The annual number of gender affirmation surgeries performed in the United States has increased significantly. There have been no investigations into the frequency of peripheral neuropathy after gender affirmation surgery, which is an important topic, given transgender individuals are at increased risk for delaying necessary medical care. After appreciating a number of cases of postoperative neuropathy in our clinical practice, we hypothesized that gender affirmation surgery is a high-risk procedure for postoperative neuropathy.  Methods We conducted a one-year, monocentric, retrospective cohort study utilizing clinical data of individuals on gender-affirming hormone therapy undergoing gender-affirmation surgery under general anesthesia. The study included transgender women, assigned male at birth, receiving antiandrogen, progesterone, or estrogen therapy (target range plasma estradiol concentration 90-200 pg/ml) and transgender men, assigned female at birth, receiving antiestrogen or testosterone therapy (target range plasma testosterone concentration 320-1000 ng/dl). The primary objective was to estimate the incidence of postoperative peripheral neuropathy, defined as new numbness, paresthesia, neuropathic pain, or muscle weakness occurring in a peripheral innervation territory. Secondary objectives were to summarize the clinical presentation of neuropathy and investigate for associations between procedure characteristics and neuropathy. Results We identified nine cases of postoperative peripheral nerve injury in 232 consecutive gender affirmation procedures establishing an incidence of 3.9%. All injuries were associated with surgery longer than six hours and were characterized by sensory deficits including numbness 89% (8/9) and tingling 56% (5/9), which were diagnosed by postoperative day one. Conclusions Our results suggest that gender affirmation surgery is a high-risk procedure for postoperative neuropathy, with an incidence similar to other high-risk procedures, and an incidence that is higher than the general surgical population. However, given this has not been previously reported and our study includes a heterogenous population from a single institution, our results should be considered hypothesis generating. Additional studies that include multiple institutions are needed to confirm our findings and identify modifiable risk factors for postoperative neuropathy.

Gender-affirming microvascular breast reconstruction

Gender-affirming surgery (GAS), including breast feminization, is requested and performed with increasing frequency. Transgender women may seek chest feminization surgery to address gender dysphoria, and such procedures have been shown to increase psychosocial and sexual well-being. Despite the potential effects of hormone therapy and androgen blockade on breast development, the results of glandular growth in adult transgender women are typically disappointing and are often inadequate to achieve the patient's goals. When evaluating options for breast construction, an implant-based approach meets the needs of most patients. However, patient choice, implant complications, acquired and congenital alterations of chest anatomy and the unique challenges of feminizing a natal male chest occasionally require consideration of other options. We review the few cases of gender-affirming breast reconstruction using autologous tissue published in the literature and summarize the senior author's approach and technique. We also review two cases of autologous chest feminization by the senior author. Ultimately, while implant-based reconstruction should continue to be the default procedure and offered to the majority of patients, several factors need to be considered when determining the optimal approach to breast feminization for a given patient. In patients with congenital or acquired deformities or a variety of factors where a reasonable outcome cannot be achieved with implants, autologous reconstruction should remain an option.

Postoperative adverse events following gender-affirming vaginoplasty: an American College of Surgeons National Surgical Quality Improvement Program study

BACKGROUND

As a part of gender-affirming care, many transgender women undergo vaginoplasty surgery, which is increasingly being performed in the United States. There are considerable knowledge gaps about adverse events associated with vaginoplasty as most published articles report single-center results.

OBJECTIVE

This study aimed to describe severe and overall 30-day adverse events after gender-affirming vaginoplasty using a large multicenter database.

STUDY DESIGN

This was a retrospective cohort study of transgender women who underwent vaginoplasty between 2011 and 2019 using the American College of Surgeons National Surgical Quality Improvement Program database. Cases were initially identified by diagnosis codes for gender identity disorders and procedure codes for male-to-female vaginoplasty. Adverse events at 30 days were identified, including unplanned reoperation or readmission, blood transfusion, wound dehiscence, surgical site infections, thromboembolic disease, sepsis, cerebrovascular or cardiac events, and urinary tract infection. Surgical procedures were further stratified by Clavien-Dindo grade, a standardized classification system for registering surgical complications. A score of 0 is given if there is no adverse event, whereas scores of 1 and 2 refer to deviations from the normal postoperative course, which may include additional pharmacologic treatment, bedside-managed wound complications, and blood transfusions. Clavien-Dindo grades of 3 to 4 include surgical interventions or life-threatening complications requiring intensive care unit management. A Clavien-Dindo grade of 5 is given for any complication resulting in death.

RESULTS

A total of 488 cases were eligible for inclusion in this study. The mean age of the cohort was 37.5 years, and race distribution was as follows: 71.1% White, 15.2% Black, 5.5% Asian or Pacific Islander, and 8.2% other. Of the cohort, 18.6% were Hispanic. Surgeries were performed by plastic surgeons (87.9%), urologists (8.6%), gynecologists (1.8%), and other specialists (1.6%). Concurrent nongenital surgery was performed in 17% of cases. The median operative time for all cases was 271 minutes (interquartile range, 214-344). There was no reported death in the 30-day period (Clavien-Dindo grade 5), and 27 cases (5.5%) had a Clavien-Dindo grade of 3 to 4. On multivariate analysis, body mass index and higher American Society of Anesthesiologists class were associated with higher odds of having a Clavien-Dindo grade of 3 to 4 (adjusted odds ratios, 2.9 [95% confidence interval, 1.32-4.21; P=.01] and 1.23 [95% confidence interval, 0.56-2.57; P=.05], respectively). Wound dehiscence, superficial surgical site infection, or deep surgical site infection occurred in 46 cases (9.0%). The readmission rate was 4.3% (n=21). Several preoperative factors had higher odds of readmission: body mass index (adjusted odds ratio, 9.81; 95% confidence interval, 1.77-22.13; P=.005), higher American Society of Anesthesiologists class (adjusted odds ratio, 3.23; 95% confidence interval, 1.23-9.03; P=.003), diabetes mellitus (adjusted odds ratio, 5.39; 95% confidence interval, 1.42-20.45; P=.006), and hypertension (adjusted odds ratio, 3.63; 95% confidence interval, 1.26-10.47; P=.01). The reoperation rate was 4.7% (n=23), with no significant patient factor associated with this complication. Of the reoperations, 68.2% of cases were due to wound problems, vaginal bleeding, or hematoma.

CONCLUSION

In transgender women undergoing vaginoplasty for gender affirmation, severe postoperative complications were rare, occurring in 1 of 20 patients. Most patients experienced minor complications or no complication after surgery.

The Repairing of the Recto-Neovaginal Fistula in a Male-to-Female Transgender Through Perineal Graciloplasty

Rectovaginal fistulas, which are abnormal epithelial-lined connections between the rectum and vagina, are challenging to treat. Treatment of recto-neovaginal fistulas is more complicated due to the altered perineal anatomy in individuals undergoing gender reassignment surgery. We present a recto-neovaginal fistula that occurred after reassignment surgery male-to-female transgender case of a was successfully treated with restorative perineal graciloplasty.

Optimization of Second-stage Metoidioplasty

OBJECTIVE

To describe a planned 2-staged metoidioplasty. Metoidioplasty is a genital gender-affirmation surgery aimed at creating a neophallus, scrotum (if desired), and flat male-type perineum (if desired) from natal tissues. It generally requires a planned second-stage to place testes prostheses, address complications, and perform additional surgical steps to maximally lengthen the phallus. The details of this procedure are sparsely mentioned in the literature. We found that phallus length can be optimized in the second-stage by applying surgical principles already established in the surgical treatment of adult acquired buried penis.

MATERIAL AND METHODS

We conducted a retrospective chart review of patients after metoidioplasty between August 2015 and June 2020, and isolated those that underwent second-stage metoidioplasty. Each procedure was done by 1 of 4 surgeons in a single practice in 2 locations, San Francisco, CA, and Austin, TX. Details of procedures required, complications, and demographic information were recorded.

RESULTS

Out of the 75 patients that had undergone metoidioplasty, 37 (37 of 75, 49%) underwent a second-stage metoidioplasty. Reduction of upper scrotal blocking tissue was the most common procedure performed during a second-stage metoidioplasty (31 of 37, 84%), followed by escutcheonectomy/penile lift (30 of 37, 81%), bilateral implant placement (20 of 37, 54%), chordee repair (13 of 37, 35%), and unilateral implant placement (1 of 37, 3%). 6 of the 37 patients (16%) developed major complications. 5 of the 37 (5 of 37, 15%) second-stage patients required a redo second-stage metoidioplasty.

CONCLUSION

Second-stage metoidioplasties are commonly performed on patients to optimize results of phallic lengthening and release, and to repair complications that arise after single-stage metoidioplasty. Escutcheonectomy/penile lift, placement of scrotal implants, repair of chordee, and upper scrotal blocking tissue reduction are procedures that are often performed during a second-stage metoidioplasty.

The gynecologic examination of the transfeminine person after penile inversion vaginoplasty

As more transfeminine patients (transgender and gender-diverse persons, sex assigned male at birth, who identify on the feminine spectrum of gender) are undergoing gender-affirming penile inversion vaginoplasty, gynecologists, as providers of vaginal care for both native and neovaginas, should be prepared to welcome these patients into their practice and offer long-term pelvic healthcare. Many parts of the anatomy, clinical examination, and aftercare differ from both native vaginas and other neovaginal surgical techniques. Transgender and gender-diverse patients cite a lack of clinician knowledge as a barrier to accessing affirming and competent healthcare. Although publications are emerging regarding this procedure, most focus on intraoperative and postoperative complications. These studies are not positioned to provide long-term pelvic health guidance or robust instruction on typical examination findings. This clinical opinion aims to address that knowledge gap by describing the gynecologic examination in the transfeminine person who has undergone a penile inversion vaginoplasty. We review the anatomic changes with surgery and the neovagina's physiology. We describe the examination of the vulva, vagina, and urethra and discuss special considerations for performing pelvic examinations on patients with a penile inversion vaginoplasty neovagina. We will also address common pathologic findings and their initial management. This clinical opinion originates from the expertise of gynecologists who have cared for high volumes of transfeminine patients who have undergone penile inversion vaginoplasties at tertiary care centers performing gender-affirming genital surgery, along with existing research on postpenile inversion vaginoplasty outcomes. Gynecologists should be familiar with the anatomic changes that occur with penile inversion vaginoplasty gender-affirming surgery and how those changes affect care. Providing transgender patients with comprehensive care including this sensitive examination can and should be part of the gynecologist's scope of practice.