Atrial fibrillation is an irregular, often rapid heart rhythm that can increase the risk of blood clots, stroke, and heart failure.
November 11, 2025
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General medical definition and associated risks of atrial fibrillation.
Patients with atrial fibrillation have historically been advised to limit or avoid caffeine intake.
November 11, 2025
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Common clinical counseling regarding caffeine use for people with irregular heart rhythms.
Clinical studies of atrial fibrillation commonly define recurrence using electrocardiogram-documented episodes lasting at least 30 seconds.
November 11, 2025
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Typical outcome definition used in AF clinical research to identify recurrent arrhythmia.