Relation of Testosterone Levels to Mortality in Men With Heart Failure

Akiomi Yoshihisa1, Satoshi Suzuki1, Yu Sato1

  • 1Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan.

Insights

Low testosterone levels in men with heart failure are linked to increased mortality, reduced exercise capacity, and myocardial damage. This study highlights testosterone

Area of Science:

  • Cardiology
  • Endocrinology
  • Internal Medicine

Background:

  • Heart failure (HF) is a complex syndrome with significant morbidity and mortality.
  • The role of hormonal imbalances, particularly testosterone deficiency, in HF prognosis is an area of ongoing research.
  • Understanding the relationship between testosterone levels and cardiac function, damage, and exercise capacity is crucial for improving patient outcomes.

Purpose of the Study:

  • To investigate the impact of serum total testosterone (TT) levels on the prognosis of heart failure (HF) in men.
  • To examine the association between TT levels and underlying cardiac function, myocardial damage, and exercise capacity in HF patients.
  • To identify TT as a potential independent predictor of all-cause mortality in men with HF.

Main Methods:

  • Analysis of 618 male HF patients, stratified into four quartiles based on serum total testosterone (TT) levels.
  • Kaplan-Meier survival analysis and multivariable Cox proportional hazard analysis to assess all-cause mortality.
  • Comparison of echocardiography parameters, cardiopulmonary exercise testing (peak VO2), B-type natriuretic peptide, and cardiac troponin I levels across TT quartiles.

Main Results:

  • All-cause mortality progressively increased from the highest to the lowest TT quartile.
  • Low serum TT (fourth quartile) was associated with significantly higher levels of cardiac troponin I (myocardial damage) and lower peak VO2 (exercise capacity) compared to the highest TT quartile.
  • Total testosterone (TT) was identified as an independent predictor of all-cause mortality in men with HF (HR 0.929, p=0.042).

Conclusions:

  • Decreased serum testosterone levels are significantly associated with adverse outcomes in men with heart failure.
  • Lower testosterone is linked to increased myocardial damage and reduced exercise capacity, contributing to higher mortality.
  • Serum testosterone levels may serve as a valuable prognostic marker in male patients with HF.

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