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 ...

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 ...

Premature ventricular complexes (PVCs) are extra heartbeats originating from the heart’s lower chambers, potentially causing palpitations or fluttering sensations. While occasional PVCs are common, ...

Trigeminy is a heart rhythm irregularity characterized by a premature ventricular contraction occurring every third heartbeat. While many people with trigeminy experience no symptoms, others may feel ...

Q: My daughter sometimes feels like her heart skips a beat. Her doctor did some tests and said it was due to premature ventricular contractions. Should I be worried? A: The heartbeat is controlled by ...

Bigeminy is an irregular heart rhythm where every normal beat is followed by an abnormal one, often due to premature ventricular contractions (PVCs). It can feel like skipped or extra beats, but in ...

In a normal heart rhythm, your heart beats in a steady, even way. The upper part of your heart (atria) squeezes and pushes blood to the lower part (ventricles), pumping blood and oxygen out to the ...

Correspondence to Dr Alessandro Biffi, Med-Ex, Medicine & Exercise, Medical Partner Scuderia Ferrari, Rome, Italy; a.biffi{at}libero.it Long-term physical activity induces structural, functional and ...

In most cases, you can exercise at full capacity if you only sometimes experience PVCs. You may need to reduce the intensity if you often experience PVCs or have an underlying heart condition.

A premature ventricular contraction occurs when a focus in the ventricle generates an action potential before the next scheduled sinoatrial nodal action potential. Ventricular bigeminy occurs when ...