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It's the ECG's that george rejects that makes George's ECG's the best.
Alternating RBBB & LBBB?
Report: Sinus rhythm Second degree 2:1 AV block Alternating RBBB & LBBB Discordant PR intervals Left axis deviation -35o (in RBBB) Non-specific ST/T changes (during RBBB) Or: Conducted RBBB with 2:1 and advanced 2o AVB Ventricular escape beats Es
Masquerading and Left BBB: BBBB
Report:Atrial fibrillation with rapid ventricular response 150/min Right bundle branch block Left anterior hemiblock Left bundle branch block Bilateral bundle branch block. Nonspecific ST/T changes Comment:In this case one can diagnose BBBB directly