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由美国和加拿大15个主要医疗中心参加的冠状动脉外科协作研究组(CASS),报告了冠状动脉旁路移植术的危险性。CASS 研究组患者数量多,资料收集完整,又位于北美不同地区,故能反映这些国家冠状动脉外科的实际情况。本文旨在明确手术死亡率与临床和血管造影表现之间的关系。方法和结果:1975年8月至1978年12月,共有6,630例患者,作单纯冠状动脉旁路移植术,其中男性5,569例,女性1,061例。收集了这些患者的病史、体格检查和血管造影等有关资料,进行统计分
The Coronary Surgical Collaborative Study Group (CASS), which participated in 15 major medical centers in the United States and Canada, reported the risk of coronary artery bypass grafting. CASS study group, the number of patients with complete data collection, but also in different parts of North America, it can reflect the actual situation of coronary surgery in these countries. This article aims to clarify the relationship between operative mortality and clinical and angiographic findings. Methods and Results: From August 1975 to December 1978, a total of 6,630 patients undergoing coronary artery bypass grafting included 5,569 males and 1,061 females. Collected the history of these patients, physical examination and angiography and other relevant information, statistics