Cooperman M, Pflug B, Martin E W, Evans W E
Surgery. 1978 Oct;84(4):505-9.
Cardiovascular risk factors in 566 patients with peripheral arterial disease undergoing major vascular operations were analyzed by chi-square analysis. There were 37 postoperative deaths, for a mortality rate of 8.5%. Cardiovascular complications were responsible for 23 deaths (62%). Five risk factors--congestive heart failure, prior myocardial infarction, prior stroke, arrhythmia, and abnormal electrocardiogram--showed significant individual associations with postoperative cardiovascular complications. A multivariate analysis of these five risk factors and angina led to the development of an equation which predicts the probability of a postoperative cardiovascular complication. The number of complications observed corresponded closely to that predicted by the equation. There was a significantly higher incidence of complications in patients predicted to be at high risk than in those at low risk.
对566例接受大血管手术的外周动脉疾病患者的心血管危险因素进行了卡方分析。术后死亡37例，死亡率为8.5%。心血管并发症导致23例死亡（62%）。五个危险因素——充血性心力衰竭、既往心肌梗死、既往中风、心律失常和心电图异常——显示出与术后心血管并发症有显著的个体关联。对这五个危险因素和心绞痛进行多变量分析后得出了一个方程式，该方程式可预测术后心血管并发症的概率。观察到的并发症数量与该方程式预测的数量密切相符。预计为高危的患者并发症发生率明显高于低危患者。
