Influence of Diabetes Mellitus on Early and Late Outcome After Percutaneous Transluminal Coronary Angioplasty

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Abstract
Background Although patients with diabetes mellitus constitute an important segment of the population undergoing coronary angioplasty, the outcome of these patients has not been well characterized. Methods and Results Data for 1133 diabetic and 9300 nondiabetic patients undergoing elective angioplasty from 1980 to 1990 were analyzed. Diabetics were older and had more cardiovascular comorbidity. Insulin-requiring (IR) diabetics had diabetes for a longer duration and worse renal and ventricular functions compared with non-IR subjects. Angiographic and clinical successes after angioplasty were high and similar in diabetics and nondiabetics. In-hospital major complications were infrequent (3%), with a trend toward higher death or myocardial infarction in IR diabetics. Five-year survival (89% versus 93%) and freedom from infarction (81% versus 89%) were lower, and bypass surgery and additional angioplasty were required more often in diabetics. In diabetics, only 36% survived free of infarction or additional re...