complete heart block

Your patient with myocardial infarction develops complete heart block (= third degree AV block). Where do you suspect the culprit lesion?

In 90% of patients, the RCA supplies the AV node as well as important other sections of the conductive system. Therefore, in RCA infarctions in particular, bradycardiac arrhythmias as well as ventricular fibrillation are a frequent occurrence.

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