supraventricular arrhythmia

supraventricular arrhythmia
an arrhythmia originating in the atria, including the atrioventricular node; it may be either a bradyarrhythmia or a tachyarrhythmia.

Medical dictionary. 2011.

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  • arrhythmia — n. any deviation from the normal rhythm (sinus rhythm) of the heart. The natural pacemaker of the heart (the sinoatrial node), which lies in the wall of the right atrium, controls the rate and rhythm of the whole heart under the influence of the… …   The new mediacal dictionary

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