ventricular ectopic beat

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• Ventricular escape beat — A ventricular escape beat is a heart rhythm finding, discovered on EKG, that indicates the normal electrical conduction system of the heart is disrupted or performing inadequately. More specifically, it is an ectopic beat that occurs after an… …   Wikipedia

• ventricular escape beat — an ectopic beat of ventricular origin occurring in the absence of supraventricular impulse generation or conduction; it is characterized by a bizarre, usually wide QRS complex and lack of an ectopic P wave …   Medical dictionary

• ectopic beat — a heartbeat due to an impulse generated somewhere in the heart outside the sinoatrial node. Ectopic beats are generally premature in timing; they are classified as supraventricular if they originate in the atria and ventricular if they arise from …   Medical dictionary

• ectopic beat — extrasystole a heartbeat due to an impulse generated somewhere in the heart outside the sinoatrial node. Ectopic beats are generally premature in timing; they are classified as supraventricular if they originate in the atria and ventricular if… …   The new mediacal dictionary

• Ventricular tachycardia — Classification and external resources ICD 10 I …   Wikipedia

• Систола Эктопическая (Ectopic Beat), Экстрасистола (Extrasystole) — сердечное сокраще ние, возникающее под действием импульса, генерируемого в любом участке сердца, но вне его синоатриального узла. Эктопические систолы обычно являются преждевременными, предваряя наступление нормального сердечного сокращения; они… …   Медицинские термины

• beat — 1. To strike; to throb or pulsate. 2. A stroke, impulse, or pulsation, as of the heart or pulse. 3. Activity of a cardiac chamber produced by catching a stimulus generated elsewhere in the …   Medical dictionary

• ventricular premature complex — (VPC) an ectopic beat arising in the ventricles and stimulating the myocardium prematurely. It is characterized by an early, wide, oddly shaped QRS complex with an ST segment and T wave directed opposite to the QRS complex, usually without… …   Medical dictionary

• Ectopic pacemaker — An ectopic pacemaker or ectopic focus is an excitable group of cells that causes a premature heart beat outside the normally functioning SA node of the human heart. Acute occurrence is usually non life threatening, but chronic occurrence can… …   Wikipedia

• Ventricular fibrillation — An abnormal irregular heart rhythm whereby there are very rapid uncoordinated fluttering contractions of the lower chambers (ventricles) of the heart. Ventricular fibrillation disrupts the synchrony between the heartbeat and the pulse beat.… …   Medical dictionary

• ventricular escape — the occurrence of one or more ectopic beats in which a ventricular pacemaker becomes effective before the pacemaker in the sinoatrial node. See also under beat and rhythm …   Medical dictionary