Discordance in the predictors of mortality vs. those of ischemic complications following transcatheter coronary intervention

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Abstract
Outcomes of percutaneous transluminal coronary angioplasty (PTCA) depend upon the skill of the angioplasty team and on the characteristics of the patient population. Comparisons of outcomes from different laboratories must take into account the latter. A discordance may exist between the baseline predictors of death in hospital following PTCA and those for periprocedural ischemia. Baseline clinical and procedural characteristics of 3,725 patients who underwent PTCA during 1991 and 1992 were compared with complications by multivariate analysis. The age of the patient and the occurrence of an Ml within the previous 30 days were the most powerful independent predictors of death. Ischemic complications were not independently associated with these factors. Emergency CABG was associated independently with target lesion complexity and abrupt reclosure, with unstable angina or attempted saphenous vein graft dilatation. Thus, mortality may more directly reflect baseline clinical characteristics than the skill of operators in avoiding ischemic complications. © 1994 Wiley‐Liss,Inc..

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