second degree heart block | First degree AV block,Second degree AV block (Mobitz type I,Mobitz ...

second degree heart block | First degree AV block,Second degree AV block (Mobitz type I,Mobitz ...

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How to Identify Cardiac Arrhythmias (With Videos)

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Four types of atrio-ventricular (AV)-block. From above downwards: First-degree AV-block, Second-degree Mobitz I block (Wenchebach), Second-degree Mobitz II block, and Complete AV-block.

Four types of atrio-ventricular (AV)-block. From above downwards: First-degree AV-block, Second-degree Mobitz I block (Wenchebach), Second-degree Mobitz II block, and Complete AV-block.

p waves | ... there is no relationship between the p waves and the qrs complexes

p waves | ... there is no relationship between the p waves and the qrs complexes

[RBBB plus Mobitz II 2nd Degree AV Block]{Frank Yanowitz ©1996}The classic rSR' in V1 is RBBB. Mobitz II 2nd degree AV block is present because the PR intervals are constant. Statistically speaking, the location of the 2nd degree AV block is in the left bundle branch rather than in the AV junction. The last QRS in the top strip is a junctional escape, since the PR interval is too short to be a conducted beat.

[RBBB plus Mobitz II 2nd Degree AV Block]{Frank Yanowitz ©1996}The classic rSR' in V1 is RBBB. Mobitz II 2nd degree AV block is present because the PR intervals are constant. Statistically speaking, the location of the 2nd degree AV block is in the left bundle branch rather than in the AV junction. The last QRS in the top strip is a junctional escape, since the PR interval is too short to be a conducted beat.

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