Atrial Fibrillation in the Context of Thyrotoxicosis: Prevalence and Clinical Determinants.

ABSTRACT:

Background

Atrial fibrillation (AF) is a frequent but variably reported complication of thyrotoxicosis, with mechanisms that extend beyond thyroid hormone excess. Clarifying its prevalence and determinants may guide early detection and management.

Methods

We conducted a retrospective cross-sectional study of adults with thyrotoxicosis. Clinical, biochemical, and electrocardiographic data were reviewed. Associations between variables and AF were assessed using generalized linear models with robust errors, and results expressed as adjusted odds ratios (ORs) with 95% confidence intervals (CIs).

Results

Among 801 patients with thyrotoxicosis, 65 had AF, yielding a prevalence of 8.1% (95% CI: 6.3 - 10.2). Compared with non-AF patients, those with AF were older, more often

SUBMITTER: Koowattanatianchai S 

PROVIDER: S-EPMC12758056 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature