Accelerated idioventricular rhythm overview: Difference between revisions

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Latest revision as of 23:05, 3 September 2012

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

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 {{CMG}}
 ==Overview==
-The rate of cardiac contraction is determined by the intrinsic rate of depolarisation of the cardiac cells. In normal hearts the [[sinoatrial node]] in the atria depolarises at a rate of 70 beats per minute. This suppresses the intrinsic depolarisation of the other parts of the heart.
-The '''accelerated idioventricular rhythm''' occurs when depolarisation rate of a normally suppressed focus increases to above that of the "higher order" focuses (the sinoatrial node and the [[atrioventricular node]]). This most commonly occurs in the setting of a [[sinus bradycardia]].[http://www.emedicine.com/med/topic12.htm]
-Accelerated Idioventricular Rhythms are ectopic ventricular rhythms at rates between 40 bpm and 100 to 120 bpm. The ventricular origin of this rhythm can be demonstrated by the usual EKG criteria which include AV dissociation, fusion, and capture complexes.
 ==References==