93 year old male who experiences syncope.
Question 1: How do you know this is sinoatrial exit Wenckebach?
-Sinoatrial exit block
Question 1: The sinus beats occur in groups of 2 in this patient with pauses after each group. The P waves all look identical, suggesting they are sinus beats rather than PACs in a bigeminal pattern. The pauses are less than 2-times the basic sinus interval, which is characteristic of sinoatrial exit Wenckebach.