Summary of Learning points Normal QRS duration = 60-100 msec Wide QRS = QRS duration > 120 msec (3 little boxes) Differential diagnosis...

Summary of Learning points Etiology of BBB Acute inflammation Ischemia/scar Infiltrative disease Left bundle branch block criteria QRS >...

Summary of Learning Points Cardiac Conduction: Sinoatrial (SA) node   atrioventricular (AV) node bundle of HIS and left/right bundle...

Summary of Learning Points “Irregularly Irregular” Rhythms Include Atrial Fibrillation and Atrial Flutter with variable conduction...

Summary of Learning Points Narrow Complex Tachycardias can be classified as regular vs irregular and as having short RP vs long RP...

Summary of Learning Points Definitions myocardial injury vs ischemia vs infarct Injury - troponin rise due to some insult (+/- ischemia) ...

Summary Of Learning Points LVH increases the amplitude of the normal vector generated by the left ventricle.  This results in a deeper S...

Summary of Learning Points The general approach to every ECG: Start with rate and rhythm. Then evaluate P-waves, PR intervals, Axis and...