Masculinising hormone therapy produces atherogenic lipid profiles and feminising hormone therapy increases venous thromboembolism risk in transwomen compared to cisgender men and women, though evidence for broader cardiovascular disease risk remains inconsistent.
Key Findings
Results
Masculinising hormone therapy (testosterone) produces atherogenic lipid profiles in transmen.
Testosterone therapy consistently shifts lipid profiles in an atherogenic direction in transgender men.
Effects on other metabolic parameters such as insulin resistance and body composition are not consistent across available studies.
There is insufficient evidence to conclude whether overall cardiovascular disease risk among transmen is increased.
Results
Transwomen have a greater risk of venous thromboembolism (VTE) compared to cisgender men and women.
The risk of venous thromboembolism is described as 'greater in transwomen than in cis-gender men and women.'
There is a 'possible increase in cardiovascular disease risk' among transwomen receiving feminising hormone therapy.
The effects of feminising hormone therapy on metabolic parameters 'do not demonstrate a consistent pattern in the available literature.'
Background
Identifying metabolic and cardiovascular risks of gender-affirming hormone therapy (GAHT) is complicated by confounding variables and diversity of treatment regimes.
Confounding variables affecting patient outcomes make it challenging to isolate effects of GAHT.
Diversity of treatment regimes across studies contributes to inconsistent findings in the literature.
The inconsistency applies to both masculinising and feminising hormone therapy outcomes.
Conclusions
Clinical guidelines recommend baseline and periodic cardiovascular risk assessments for individuals receiving GAHT.
It is recommended to 'discuss the potential effects of GAHT on cardiovascular health' with patients.
Patients seeking GAHT should be encouraged 'to adopt a healthy lifestyle.'
'Performing baseline and periodic assessments of cardiovascular risk factors would enable early identification and interventions.'
In high-risk individuals, 'the cardiovascular effects of hormonal regimes might impact the treatment decision.'
de Silva N, Dimakopoulou A, Quinton O, Jayasena C. (2024). Metabolic and cardiovascular risks of hormone treatment for transgender individuals.. Best practice & research. Clinical endocrinology & metabolism. https://doi.org/10.1016/j.beem.2024.101907