AV Block in Inferior Infarction

Report:

Top:

Sinus rhythm

VEB

Third degree AV block

Junctional escape rhythm 42/min

Second strip:

Sinus tachycardia 104/min

Second degree AV block, 2:1 conduction

First degree AV block in conducted beats (PR 0.44”)

Third strip:

Sinus tachycardia 118/min

Second degree AV block, Möbitz 1, 3:2 conduction (bigeminy)

Bottom:

Sinus rhythm

First degree AV block (PR 0.28”)

Comment:

The sequence of events and the type of block are typical of inferior infarction, usually caused by right or left circumflex artery occlusion. The presence of AV block, however, indicates additional left anterior descending artery disease48.

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