2nd degree AV block: Mobitz I or II? ventriculophasic responseBifascicular block9 Min Read Willy FrickonNovember 12, 2024 2nd degree AV block: is this Mobitz I or II? And why the varying P-P intervals? Written by Willy Frick A middle aged man presented for elective outpatient surgery. The following ECG was obtained in the preoperative…