first-degree atrioventricular block


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Related to first-degree atrioventricular block: Third degree AV block, Second degree AV block

first-degree atrioventricular block

Delayed conduction through or from the atrioventricular node, marked on the electrocardiogram by a prolonged P-R interval. Usually no treatment is necessary. Synonym: first-degree heart block
Synonym:
See also: block
References in periodicals archive ?
A twelve-lead electrocardiogram revealed sinus rhythm, first-degree atrioventricular block with a PR interval of 220 msec and left bundle branch block with a QRS width of 150 msec.