An interpolated PAC

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Title An interpolated PAC
Creator Yanowitz, Frank G.
Contributor Frank G. Yanowitz, MD, Professor of Cardiology, University of Utah School of Medicine
Date 1997-01-01
Description Although most PACs reset the sinus node producing an incomplete compensatory pause, this PAC, indicated by the black arrow, is interpolated, i.e., sandwiched between two sinus beats. Note that the subsequent sinus P wave conducts with prolonged PR interval due to the relative refractoriness of the AV junction left by the PAC. Auscultation of the heart during this single PAC event would reveal three rapid beats in a row, suggesting a brief tachycardia.
Subtype Image
Format image/png
Collection Knowledge Weavers ECG
ARK ark:/87278/s63f7pfp
Setname ehsl_heal
Date Created 2012-10-05
Date Modified 2012-12-10
ID 869883
Reference URL
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