ReviewJournal of the Endocrine Society2026
Association of testosterone and testosterone replacement therapy with atrial fibrillation: an updated review.
Review in Journal of the Endocrine Society, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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3 authors.
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Abstract
Historically, low testosterone (T) has been linked to increased atrial fibrillation (AF) risk in men, yet recent evidence suggests that elevated T levels and testosterone replacement therapy (TRT) may also confer risk. This review synthesizes emerging literature to characterize the evolving T-AF relationship and inform clinical practice. A structured literature search of MEDLINE/PubMed and Embase, supplemented by hand-searching reference lists of relevant publications, was performed, using terms including "testosterone," "testosterone replacement therapy," and "atrial fibrillation." Findings were heterogeneous. The 2023 TRAVERSE trial reported a higher AF incidence with TRT, contrasting with earlier VA data from Sharma et al. (2017) showing reduced AF risk when T normalized after treatment. A 2024 meta-analysis by Corona et al of 106 randomized placebo-controlled trials found no significant pooled AF signal. Real-world data remained mixed: a TriNetX-based replication did not confirm elevated AF risk, whereas a 5-year cohort study reported a hazard ratio of 1.27 in cisgender hypogonadal men receiving TRT. Population-level studies by Xu et al (2024) and post-hoc ASPREE analyses by Tran et al (2024) demonstrated a nonlinear association in which both low and high T levels increased AF risk. Updated mechanistic data support a U-shaped model: low T disrupts calcium handling, whereas high T alters potassium currents and promotes reentry. Converging evidence thus supports a U-shaped T-AF relationship. Until definitive data emerge, clinicians should prioritize risk-stratified TRT use, mid-physiologic T targets, stable formulations, and structured monitoring.
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