With the faster heart rate, the QRS complex morphology changes to that of a LBBB. As sinus rhythm restores, and the ventricular rate slows, the QRS morphology returns to normal. The Sgarbossa ...

The Sgarbossa criteria is used in the diagnosis of an acute myocardial infarction when a left bundle branch block is present. Traditionally it has been taught that myocardial infarction is not ...

Of these, 36 (4%) fell into the new or presumed new LBBB categories ... were not statistically significant. Regarding the Sgarbossa criteria, in the ACS group two patients had scores ≥ 5 ...

Kontos et al., from the Division of Cardiology and Department of Emergency Medicine at the Virginia Commonwealth University in Richmond, VA, looked at patients who had LBBB on their initial ECG ...