Advanced Second Degree AV Block

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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First Degree SA Exit Block

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

Complete AV Block

Left Bundle Branch Block

Left Anterior Fascicular Block

Left Posterior Fascicular Block

Right Bundle Branch Block

Bifascicular Block

Trifascicular Block

Advanced Second Degree AV Block

Overview

Look For

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