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目的：针对高龄冠心病患者行PCI术后3 d并发急性左心衰发生的相关危险因素进行分析，为术后预防心衰提供依据。方法选择长海医院在2012年12月~2015年12月期间，收治的高龄冠心病且行PCI术后3 d患者240例，其中术后并发急性左心衰为观察组，无心衰为对照组，各120例。对2组患者的临床资料进行回顾性分析，并对相关因素进行统计学分析。结果单因素分析表明患者吸烟史、入院合并高血压、慢性阻塞性肺疾病、高脂血症、严重心律失常、既往卒中史以及血红蛋白、血小板、血浆三酰甘油、白蛋白、血肌酐、血尿素氮、肌钙蛋白、收缩压、单支病变、多支病变，与患者术后发生心衰存在正相关性，再对结果进行相关多因素非条件Logistic回归，结果显示合并严重心律失常、多支病变、血肌酐是影响患者并发心衰发生的危险因素（P<0.05）。结论对于高龄冠心病患者，及时控制心律失常、冠心病的危险因素，积极改善肾功能，可以有效降低心衰的发生率。“,”Objective To identify the risk factors of acute left heart failure in elderly patients with coronary heart disease (CHD) 3 daysafter percutaneous coronary intervention (PCI),and provide the basis for the prevention and treatment of postoperative complications. Methods The clinical data of 240 CHD elderly patientsinChanghai Hospital from December 2012 to December 2015,120 with acute left heart failure (observation group) and 120 without (control group) in 3 days after PCI, were analyzed. Results Univariate analysis showed that patients with smoking history, admitted to hospital with high blood pressure, chronic obstructive pulmonary disease, hyperlipidemia, severe arrhythmia, history of stroke, and three acyl glycerin, hemoglobin, platelet, plasma albumin, serum creatinine, blood urea nitrogen, troponin, systolic blood pressure, the single lesion, multivessel lesions were positive contacted with heart failure after surgery. (P<0.05).Multivariate unconditional Logistic regression showed that severe arrhythmia, multiple lesions, serum creatinine were risk factors for elderly patients complicated with heart failure (all P<0.05).Conclusion For elderly patients with CHD, control of arrhythmia, coronary heart disease risk factors, and improvement of renal function help effectively reduce the incidence of heart failure.