Males with both low or excessive testosterone ranges could face a better danger of atrial fibrillation, highlighting the necessity for customized testosterone therapy, in accordance with a assessment of present proof on testosterone and coronary heart well being revealed immediately within the Journal of the Endocrine Society.
Co-author Rajat S. Barua, M.D., Ph.D., of Kansas Metropolis Veterans Affairs Medical Middle in Kansas Metropolis, Mo., stated, “Testosterone substitute remedy is broadly prescribed for middle-aged and older males, and atrial fibrillation is a coronary heart rhythm dysfunction that will increase stroke danger and sometimes requires lifelong blood-thinning remedy. Our paper reviewed present proof on whether or not testosterone remedy is secure or unsafe in relation to atrial fibrillation and the vary of testosterone ranges related to the bottom danger. Each too little and an excessive amount of testosterone seem to boost the chance of atrial fibrillation, by separate organic mechanisms, which suggests the dose and the goal degree matter. What the assessment argues is that therapy ought to be individualized and monitored.”
The researchers concluded from the out there and conflicting proof that the connection between testosterone and atrial fibrillation (AF) seems to observe a U-shaped sample: males with low testosterone and males with excessive testosterone each present a better danger of atrial fibrillation, whereas the chance seems to be lowest in the midst of the conventional vary.
Barua explains that this sample has help from two instructions: massive inhabitants research and, since 2025, laboratory work displaying that high and low testosterone disturb coronary heart cells by two totally different mechanisms.
For males who want testosterone substitute remedy, the authors state the objective for clinicians ought to be aiming to revive testosterone to the center of the conventional vary (roughly 350–550 ng/dL complete testosterone) reasonably than pushing it to the excessive finish, utilizing steady-release formulations and structured monitoring. The therapeutic vary of complete testosterone, 350–550 ng/dL, is inferred from observational information and has not been examined prospectively but.
The authors broaden on methods to personalize therapy and monitor signs for males who want testosterone remedy:
- Use calculated free testosterone when Intercourse Hormone-Binding Globulin (SHBG) is irregular.
- Want stable-pharmacokinetic formulations over short-acting formulations in males with elevated cardiovascular or arrhythmic danger.
- Keep regular hematocrit because the principal dose-limiting security constraint.
- Threat-stratify earlier than initiation and deal with weight problems, sleep apnea, hypertension, and alcohol use.
- Monitor rhythm, hematocrit, blood strain, and renal and hepatic perform.
The authors word that the assessment is a story summarizing present literature reasonably than a meta-analysis, so its conclusions are interpretive.
Different authors are Anand Reddy Maligireddy of the College of Kansas Medical Middle in Kansas Metropolis, Kan., and Shumedha T. Barua of Kansas Metropolis VA Medical Middle.
The assessment acquired no exterior funding.
“Association of Testosterone and Testosterone Replacement Therapy with Atrial Fibrillation: An Updated Review” was revealed on-line.
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