WebVentricular Extrasystole Introduction Normal heart pumping Premature ventricular contractions (PVCs) are early depolarizations of the myocardium originating in the ventricule. During a premature ventricular contraction (PVC), the heartbeat is initiated by the Purkinje fibers rather than the SA node. [1] [2] Webextrasystole: 1 n a premature systole resulting in a momentary cardiac arrhythmia Type of: systole the contraction of the chambers of the heart (especially the ventricles) to drive blood into the aorta and pulmonary artery

Respiration Definition & Meaning - Merriam-Webster

WebApr 30, 2024 · A heart rate of more than 100 beats a minute is called a tachycardia (tak-ih-KAHR-dee-uh). During an episode of SVT, the heart beats about 150 to 220 times a minute, but it can occasionally beat … Webextrasystole [ ek″strah-sis´to-le] a premature cardiac contraction that is independent of the normal rhythm and arises in response to an impulse outside the sinoatrial node. atrial extrasystole one in which the stimulus is thought to arise in the atrium elsewhere than at the sinoatrial node. nike tech castanho

Premature ventricular contraction (Concept Id: C0151636)

http://www.definition.com.co/extrasystole.html WebHow do extrasystoles occur? Extrasystoles can occur in both healthy people and cardiac patients, and often go unnoticed. The underlying cause is a disturbance of the cardiac … WebDefine extrasystoles. extrasystoles synonyms, extrasystoles pronunciation, extrasystoles translation, English dictionary definition of extrasystoles. n. A premature contraction of the heart, resulting in momentary cardiac arrhythmia. ex′tra·sys·tol′ic adj. American Heritage® Dictionary of the English... nth taida