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Tachycardia, Ectopic Atrial

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Definition: Abnormally rapid heartbeats originating from one or more automatic foci (nonsinus pacemakers) in the HEART ATRIUM but away from the SINOATRIAL NODE. Unlike the reentry mechanism, automatic tachycardia speeds up and slows down gradually. The episode is characterized by a HEART RATE between 135 to less than 200 beats per minute and lasting 30 seconds or longer.      Other names Ectopic Atrial Tachycardia; Atrial Ectopic Tachycardia; Tachycardias, Ectopic Atrial; Tachycardias, Atrial Ectopic; Tachycardia, Atrial Ectopic; Ectopic Tachycardias, Atrial; Ectopic Tachycardia, Atrial; Ectopic Atrial Tachycardias; Atrial Tachycardias, Ectopic; Atrial Tachycardia, Ectopic; Atrial Ectopic Tachycardias

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Sources: NLM Medical Subject Headings, NIH UMLS, Drugs@FDA, FDA AERS original data copyright United States Government. No endorsement implied. Last modified 6/6/2012
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