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Premature ventricular contraction
A premature ventricular contraction, also known as a premature ventricular complex, ventricular premature contraction, ventricular premature beat, or extrasystole, is a relatively common event where the heartbeat is initiated by the heart ventricles rather than by the sinoatrial node, the normal heartbeat initiator.
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Bigeminy
Heart rate turbulence
Premature atrial contraction
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