Abstract
Rescue percutaneous transluminal coronary angioplasty (PTCA) is a mechanical reperfusion strategy aimed at achieving patency of the infarct-related artery after failed thrombolysis. However, in randomized studies the indication for rescue PTCA was per protocol rather than based on clinical criteria. The aim of this study was to determine predictors of mortality at 30 days following rescue percutaneous intervention. Seventy-one consecutive patients who underwent rescue PTCA were included. Mean age was 61 (11) years, 80% were men and 9.8% had diabetes. The infarct-related artery was the left anterior descending artery in the 46.5%, and the mean percentage of stenoses was 91.0 (11.6)%. A stent was implanted in 97.2% and TIMI II-III flow was obtained in the 97.2% of the patients. Overall mortality was 9.8% at 30 days follow-up and 11.3% at 1 year follow-up. In the multivariate analysis, the independent predictors of mortality at 30 days were age (OR=1.2, 95% CI: 1.03-1.5, P=.001), Killip class III-IV (OR=20.1; 95% CI: 1.7-500; P=.003), PTCA failure (OR=indeterminate; P=.04) and left anterior descending artery involvement (OR=12.6; 95% CI: 0.7-214.9; P=.04). Rescue PTCA is effective in restoring blood flow in the infarct-related artery in the majority of patients in whom thrombolysis failed. The independent predictors of mortality were similar to those previously reported in acute myocardial infarction.
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