Venous thromboembolism in transgender and gender non-binary youth is rare and occurs in the setting of secondary risk factors: A retrospective cohort study.

BACKGROUND: The risk of venous thromboembolism (VTE) with gender-affirming hormone therapy (GAHT) in transgender and gender non-binary (TNB) youth is unclear. OBJECTIVE: To identify the rate of VTE in a cohort of TNB youth followed in the transgender health clinic at Boston Children's Hospital, and to investigate the impact of congenital thrombophilia diagnosis on the use of GAHT. METHODS: ICD-9 and ICD-10 codes were used to identify eligible individuals, defined as (i) having a diagnosis of gender dysphoria and (ii) venous thromboembolism (VTE). Data were abstracted from a review of medical records. A second data query assessed TNB individuals who had an associated thrombophilia diagnosis. RESULTS: The primary analysis included 1860 individuals. Total 942 individuals (50.6%) had started GAHT at the time of data analysis. Mean age (±SD) at GAHT initiation was 16.8 (±1.9) years. Five thrombotic events were identified in three (0.13%) individuals, all in the setting of additional VTE risk factors. Only two of five thrombotic events occurred while receiving GAHT. The rate of VTE in the GAHT cohort did not statistically differ from the rate of VTE in the non-GAHT cohort (0.1% vs. 0.2%, p = .62). Of the 10 individuals diagnosed with a congenital thrombophilia, two transmasculine individuals received prophylactic anticoagulation prior to GAHT. No VTE has been reported to date in this cohort. CONCLUSIONS: In our cohort, VTE was rare in the TNB youth and was not associated with GAHT use. TNB youth with congenital thrombophilia have not developed VTE in the setting of GAHT use to date.

HIV/Pre-Exposure Prophylaxis Knowledge and Acceptability of Rapid HIV Testing Among Transgender Adolescents in a Multidisciplinary Gender Clinic.

Purpose: The objectives of this study were to assess the knowledge of HIV and pre-exposure prophylaxis (PrEP) in transgender adolescents and young adults (AYAs) and to test the acceptability of rapid HIV testing among transgender adolescents in a multidisciplinary gender clinic. Methods: Participants enrolled on the same day as their mental health or medical appointment in a multidisciplinary gender clinic. They completed survey questions regarding HIV and PrEP knowledge and were also offered an optional same-day, rapid, fourth-generation HIV test. Participants who had an HIV test answered additional questions about their testing experience. Results: We enrolled 61 participants; just over half (n=31) were assigned female at birth. Less than a third (n=20, 32.8%) scored 80% or above regarding HIV knowledge. Nearly half of the participants (n=29, 47.5%) were not interested in PrEP. Forty-one percent of participants chose to have a rapid HIV test; all were "satisfied" with the testing experience. There were no positive HIV results. Conclusions: Transgender AYAs have gaps in their understanding of HIV acquisition and transmission. Rapid HIV testing in the setting of gender care is well received by those who desire testing and may be a way to increase knowledge of transgender AYA HIV status.

Care for Transgender Young People.

Clinicians of all disciplines, including pediatric endocrinologists, are likely to encounter transgender and gender-diverse (TGD) young people in their practice regardless of whether they specialize in gender-affirming medical care. Because of this, it is important to be aware of the ways in which medical professionals can affirm these individuals. Although gender-affirming therapy should always include affirmation including proper use of names and pronouns, the transition journey will look different for each patient. The gender-affirming care of TGD young people may include both medical and nonmedical interventions (e.g., social transition). Therapies utilized for medical gender transition such as gonadotropin-releasing hormone agonists and/or gender-affirming hormones have implications for growth, bone health, cardiovascular health, and fertility, although these impacts are not yet completely understood. This review provides an overview of the care of transgender young people as well as a summary of what is known about the outcomes of these therapies. Clinicians should advise TGD young people and their families of the known and unknown risks and work together with patients to decide upon a treatment and follow-up regimen that aligns with their individual gender affirmation and health goals.

A serous borderline ovarian tumour in a transgender male adolescent.

Here we present a transgender male adolescent with an androgen receptor-positive serous borderline ovarian tumour in the setting of testosterone treatment for medical gender transition. To our knowledge, this is the second report of borderline tumour in a transgender individual and the first in an adolescent, an age group in which borderline tumours are extremely rare. We discuss the specific considerations of treating ovarian tumours in the transgender male population, the incompletely understood role of androgens in the genesis of ovarian epithelial neoplasia, and an emphasis on assessing cancer risk in transgender patients based on patient anatomy.