1.06 Sinus Node Dysfunction

In this episode, we review sinus node dysfunction. What is the difference between sinus arrest, sinus pause, sinoatrial exit block, and non-conducted premature atrial contraction? How is 1st, 2nd, and 3rd degree sinoatrial exit block similar or different from 1st, 2nd, and 3rd degree atrioventricular block, and how is sinoatrial Wenckebach similar or different from atrioventricular Wenckebach? Which of these are undetectable on surface ECG? When should you provide permanent pacing in sinus node dysfunction? Which medications can be used for reversal of symptomatic bradycardia? Tune in for answers to these questions.

Difficulty Level: Intermediate

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