Arterial Stiffness in Transgender Men Receiving Long-term Testosterone Therapy
Flávia Siqueira Cunha, Tânia A.S.S. Bachega, Elaine Maria Frade Costa, Vinícius Nahime Brito, Leonardo Azevedo Mobília Alvares, Valéria Costa‐Hong, Renata Gomes Sanches Verardino, Maria Helena Palma Sircili, Berenice B. Mendonça, Luiz Aparecido Bortolotto, Sorahia Domenice
Abstract
Context: The effects of androgen therapy on arterial function in transgender men (TM) are not fully understood, particularly concerning long-term androgen treatment. Objective: To evaluate arterial stiffness in TM receiving long-term gender-affirming hormone therapy by carotid-femoral pulse wave velocity (cf-PWV). Methods: A cross-sectional case-control study at the Gender Dysphoria Unit of the Division of Endocrinology, HC-FMUSP, Sao Paulo, Brazil. Thirty-three TM receiving intramuscular testosterone esters as regular treatment for an average time of 14 ± 8 years were compared with 111 healthy cisgender men and women controls matched for age and body mass index. Aortic stiffness was evaluated by cf-PWV measurements using Complior device post-testosterone therapy. The main outcome measure was aortic stiffness by cf-PWV as a cardiovascular risk marker in TM and control group. Results: = .02). The cf-PWV was significantly and positively correlated with age. Analysis using blood pressure as a covariate showed a significant relationship between TM systolic blood pressure (SBP) and cf-PWV in relation to cisgender women but not to cisgender men. Age, SBP, and diagnosis of hypertension were independently associated with cf-PWV in the TM group. Conclusion: The TM group on long-term treatment with testosterone had higher aging-related aortic stiffening than the control groups. These findings indicate that aortic stiffness might be accelerated in the TM group receiving gender-affirming hormone treatment, and suggest a potential deleterious effect of testosterone on arterial function. Preventive measures in TM individuals receiving testosterone treatment, who are at higher risk for cardiovascular events, are highly recommended.