2022年4月30日 · Premature ventricular contractions (PVCs) are extra heartbeats that begin in one of the heart's two lower pumping chambers (ventricles). These extra beats disrupt the regular heart rhythm, sometimes causing a sensation of a fluttering or a skipped beat in the chest.

2022年7月1日 · Premature ventricular contractions (PVCs) are common and usually no cause for concern. We review signs that you may need to see a doctor.

2023年12月25日 · What Are Premature Ventricular Contractions (PVCs)? If your heart feels out of rhythm or “flutters,” especially when you're anxious or stressed, it could be caused by premature ventricular...

2022年7月29日 · Premature ventricular contractions (PVCs) are a type of irregular heartbeat. They occur when the electrical signal to start your heartbeat comes from your lower heart chambers. PVCs are common and usually aren’t dangerous.

2024年9月24日 · Premature beats that start in your heart’s upper chambers are premature atrial contractions, or PACs. Those that start in the lower chambers are premature ventricular contractions, or PVCs. Watch an animation of a normal heartbeat. They can happen to anyone but are more often found in older adults.

2020年4月27日 · Premature ventricular complexes (PVCs) are observed in the majority of individuals monitored for more than a few hours, and the absence of a PVC will likely become more of a rare phenomenon as longer monitoring devices are used.

2024年2月8日 · A premature ventricular complex (PVC, or premature ventricular contraction) is an extra electrical impulse arising from one of the heart's ventricles. This extra impulse happens before the next normal heartbeat has a chance to occur.

2022年4月30日 · Most people with premature ventricular contractions (PVCs) who don't have heart disease won't need treatment. If you have heart disease, PVCs can lead to more-serious heart rhythm problems (arrhythmias).

2023年8月8日 · During a premature ventricular contraction (PVC), the heartbeat is initiated by the Purkinje fibers rather than the SA node. Given that a PVC occurs before a regular heartbeat, there is a pause before the next regular heartbeat. PVCs can occur in isolation or in repeated patterns.

A premature ventricular contraction is an occasional extra heartbeat that briefly throws off the heart’s regular rhythm. It arises prematurely (before the next heartbeat is expected) in the heart’s ventricles, the lower chambers of the heart. Some people with premature ventricular contractions can sense a fluttering in their chest.