Influence of coronary artery bypass grafting on ventricular late potentials as a predictive factor for XXXX during short- and long-term follow-up.

@entity1 @entity301 @entity1163 @entity583 @entity943
Ventricular late potentials have been identified as a prognostic factor in the prediction of @entity943 in @entity1 after @entity583 . In this prospective study the possible impact of late potentials on the prediction of @entity943 in the short- and long-term follow-up after coronary artery bypass grafting was evaluated. In 188 @entity1 (165 @entity1 , 23 @entity1 , age 57 +/- 8 years) with chronic @entity301 48 (26%) had late potentials before bypass grafting; after the procedure this was reduced to 39 (21%) (ns). In 16 (33%) of the 48 @entity1 with late potentials before bypass grafting, late potentials were no longer present in the short-term follow-up (9 +/- 6 days). Conversely, seven (5%) of the 140 @entity1 without late potentials before bypass grafting had late potentials in the short-term follow-up after grafting. Nine (19%) of the 48 @entity1 with late potentials before bypass grafting had @entity943 in the peri-operative phase, which had to be treated with antiarrhythmic agents. In contrast, only three (2%) of the 140 @entity1 without late potentials before bypass grafting had to be treated for @entity943 (P < 0.001). In the long-term follow-up of 29 +/- 3 months, there were no events in the group of 149 @entity1 without late potentials after grafting. In the 39 @entity1 with late potentials after grafting, there were two (5%) events (two @entity1 with @entity1163 ). CONCLUSIONS: (1) @entity1 with late potentials before bypass grafting have a markedly higher risk of developing serious @entity943 in the peri-operative period than @entity1 without late potentials. (2) @entity1 without late potentials have a very low risk of developing serious @entity943 in the peri-operative period. (3) During long-term follow-up there was only a low probability of developing symptomatic @entity943 in @entity1 with or without late potentials.
