A premature atrial contraction (PAC) occurs when a focus in the atrium (not the SA node), generates an action potential before the next scheduled SA node action potential. When this occurs prior to ...

A premature atrial contraction (PAC) occurs when a focus in the atrium (not the SA node), generates an action potential before the next scheduled SA node action potential. There are four main ...

Atrial premature complexes (APCs) are a common kind of heart arrhythmia characterized by premature heartbeats originating in the atria. Another name for atrial premature complexes is premature atrial ...

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 ...

October 10, 2012 (Basel, Switzerland) — Premature atrial contractions (PACs) occur in the majority of people aged over 50, and their frequency is independently associated with a number of risk factors ...

Orlando Magic team doctors described medically Thursday the heart flutters felt by center Shaquille O’Neal that triggered a battery of tests to determine the cause. Doctors surmise the flutter is a ...

I am a 72-year-old man in excellent health and physical condition. I ride a bicycle 60 miles a week, and I generally feel good. I have an irregular heartbeat in the form of a premature atrial ...

(HealthDay News) – Premature atrial contraction (PAC) count improves atrial fibrillation (AF) risk model performance, according to a study published in the Dec. 3 issue of the Annals of Internal ...

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 ...