Our Premature Ventricular Contractions (PVCs) Main Article provides a comprehensive look at the who, what, when and how of Premature Ventricular Contractions (PVCs)
Definition of Premature ventricular contraction
Premature ventricular contraction: Contraction of the lower chambers of the heart, the ventricles, that occurs earlier than usual because of abnormal electrical activity of the ventricles. Abbreviated PVC. The premature contraction is followed by a pause as the heart's electrical system resets itself; the contraction following the pause is usually more forceful than normal. These more forceful contractions are frequently perceived as palpitations.
Last Editorial Review: 3/19/2012
Back to MedTerms online medical dictionary A-Z List
Need help identifying pills and medications?