Advanced Second Degree AV Block

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Overview

In advanced or ‘high-grade' second degree heart block, multiple beats are blocked and it is difficult to distinguish between Mobitz type I and II.
- Look For
- Two or more consecutive p waves without subsequent QRS complexes
- May be in a 3:1, 4:1 or higher pattern

Last updated on November 15th, 2019

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Levites R, Haft JI. Significance of first degree heart block (prolonged PR interval) in bifascicular block. American Journal of Cardiology. 1974 Sep 1;34(3):259-64.

Meek S, Morris F. ABC Of Clinical Electrocardiography: Introduction. British Medical Journal 2002; Vol. 324, No. 7335; pp. 470-473 Money-Kyrle, Andrew. ECG interpretation made simple. GP (Nov 12, 2010): 36-37.

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Second Degree SA Exit Block: Type I

Second Degree SA Exit Block: Type II

Third Degree SA Exit Block

First Degree AV Block

Second Degree AV Block: Type I Mobitz

Second Degree AV Block: Type II Mobitz

Advanced Second Degree AV Block

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Bifascicular Block

Trifascicular Block

Advanced Second Degree AV Block

Overview

Look For

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