A premature ventricular contraction occurs when a focus in the ventricle generates an action potential before the next scheduled sinoatrial nodal action potential. Premature, occurring earlier than ...

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 ...

A healthy 33-year-old woman with no cardiac risk factors feels thumps or skipped beats in her chest a few times a day regardless of activity. An event recorder showed premature ventricular ...

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 ...

Premature ventricular contraction (PVC) is a type of abnormal heartbeat, or arrhythmia. It happens when the heartbeat begins in the lower, rather than the upper, heart chambers. This creates an ...

Between Sept 1982 and Oct 1984, we diagnosed premature ventricular contractions(PVCs) in 9 newborns and infants (3M/6F). CXRs were obtained in 6 patients(pts) and ...

Stress and anxiety can trigger premature ventricular contractions (PVCs), a type of arrhythmia. Premature ventricular contractions (PVCs) can be caused by emotional stress and anxiety, among other ...

A couple of neat Apple Watch stories popped up on Reddit recently. One user shared how his Apple Watch Series 4 caught a premature ventricular contraction and was able to quickly share the results ...