Sgarbossa s criteria are a set of electrocardiographic findings generally used to identify myocardial infarction also called acute myocardial infarction or a heart attack in the presence of a left bundle branch block lbbb or a ventricular paced rhythm. Sgarbossas criteria are a set of electrocardiographic findings generally used to identify myocardial infarction also called acute myocardial infarction or a heart attack in the presence of a left bundle branch block lbbb or a ventricular paced rhythm. In patients with a left bundle branch block lbbb, it may be difficult to determine if there is infarction on their electrocardiogram. This opens the possibility of missing a large percentage acute mis. Hospital general docente guillermo dominguez lopez. Criterios medicos, definiciones, indicaciones, contraindicaciones, clasificaciones, diagnosticos. Depresion del segmento st en todas las derivaciones. Ripolles melchor j, casans frances r, espinosa a, martinez hur tado e, navarro perez r, abad gurumeta a, et al. Shlipak, 1999 103 23% 82% 1,3 0,9 li, 2000 190 20% 93% 3 0,9. Sgarbossa criterios electrocardiografia electrofisiologia. Gusto1 global utilization of streptokinase and tissue plasminogen activator for occluded coronary arteries investigators. The original, weighted, sgarbossa criteria sgarbossa 1996 has an excellent specificity at 99%, but only a sensitivity of about 50%. Validation of the modified sgarbossa criteria core em.