Epidemiologic Characteristics and Postoperative Complications following Augmentation Mammaplasty: Comparison of Transgender and Cisgender Females.

[BACKGROUND] Breast augmentation in transgender women can be an important first step in addressing gender incongruence and improving psychosocial functioning. The aim of this study was to compare postoperative outcomes of augmentation mammoplasty in transgender and cisgender females.

[METHODS] We queried the American College of Surgeons National Surgical Quality Improvement Program database from 2006 to 2017 to establish 2 cohorts: (1) transgender females undergoing gender-affirming breast augmentation ("top surgery") and (2) cisgender females seeking cosmetic breast augmentation (CBA). Demographic characteristics and postoperative outcomes were compared between the 2 cohorts. Multivariable regression analysis was used to control for confounders.

[RESULTS] A total of 1,360 cases were identified, of which 280 (21%) were feminizing top surgeries and 1,080 (79%) were CBA cases. The transfeminine cohort was significantly older, had a higher average body mass index, and was more racially diverse than the CBA cohort. Transfeminine patients also had higher rates of smoking, diabetes, and hypertension. The rates of all-cause complications were low in both cohorts, and differences were not significant (1.6% transfeminine versus 1.8% CBA, = 0.890) for the first 30-days after operation. After controlling for confounding variables, transfeminine patients had postoperative complication profiles similar to their cisgender counterparts. Multivariable regression analysis revealed no statistically significant predictors for all-cause complications.

[CONCLUSIONS] Transfeminine breast augmentation is a safe procedure that has a similar 30-day complication profile to its cisgender counterpart. The results of this study should reassure and encourage surgeons who are considering performing this procedure.