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 ...

DEAR DR. ROACH: What’s the difference between atrial fibrillation and premature ventricular contractions, aka PVCs (extra heartbeats)? -- M. ANSWER: Both AFib and PVCs are rhythm disturbances of the ...

Atrial premature complexes (APCs) are a type of irregular heartbeat that originates in the atria. APCs cause premature heartbeats to occur. Depending on the cause, people may not require treatment.

let's go over premature atrial contractions so these are sometimes referred to as pac's and they're early contractions that originate from a focal point in the Atria rather than the SA node and this ...

Figure. Two premature atrial contractions, indicated by arrows A and B. In this tracing, there are two consecutive premature atrial complexes (PACs), "A" and "B" (prematurely occurring beats preceded ...

Atrial fibrillation (AFib) is an irregular heart rhythm caused by rapid, uneven electrical signals in the heart’s upper chambers. Panic attacks begin in the brain and can create intense physical ...