In the last few weeks, the Skeptical Cardiologist has had a run on with patients with premature atrial contractions (PACs). I've discussed in detail premature ventricular contractions (PVCs) here and ...

SAN FRANCISCO, CA — Knowing the number of hourly premature atrial contractions (PACs) a patient has is as good as the Framingham atrial fibrillation (AF) risk algorithm in predicting five- to 15-year ...

Most of us have had that unsettling sensation when our heart seems to flutter or "skip" a beat — but when heart palpitations start happening more frequently, you may wonder if it’s something to get ...

Atrial dysfunction, widely considered a marker or consequence of other heart diseases, is a relevant clinical entity, which is why it is justified to define atrial failure or insufficiency as "a new ...

Please provide your email address to receive an email when new articles are posted on . Healthy adults experienced no increase in atrial arrythmias and less supraventricular tachycardia on days they ...

What is atrial fibrillation, and why has Apple decided that it’s worth screening for it? The first question is much easier to answer, so let’s get that out of the way. Your heart has four chambers, ...

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While caffeine can increase the likelihood of some abnormal heart rhythm findings and interfere with sleep, it also seems to help people fit more physical activity into their day, hint findings from ...

DALLAS, Sept. 14, 2022 — Breathing particulate matter (i.e., tiny particles suspended in the air) air pollution may trigger irregular heart rhythms (arrhythmias) in healthy teenagers, according to new ...

In a recent article published in the Journal of the American Medical Association on November 9, 2025, researchers examined the effect of coffee consumption on the recurrence of atrial fibrillation ...