Premature beat

Premature beat (premature beat), also known as pre-contraction, extra-constriction, referred to as premature beat. It is an early ectopic heartbeat. According to the origin, it can be divided into sinus, atrial, atrioventricular junction and ventricular. Among them, ventricular is the most common, followed by atrial, and premature sinus beats are rare. Premature beats are common ectopic rhythms. Can occur on the basis of sinus or ectopic (such as atrial fibrillation) rhythm. Occasionally or frequently, it can occur irregularly or regularly after each or a few normal beats, forming a dual or premature beat. Premature beat

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