Egloff L, Studer M, Rothlin M, Hess O M, Turina M, Senning A
Schweiz Med Wochenschr. 1984 Aug 18;114(33):1123-6.
From 1979 to April 1984, 51 patients were reoperated on for postoperative angina pectoris. Three patients died early and 4 late. The cause of death was cardiac in all cases. After the second operation the mean observation period was 24.2 months and the mean functional class 2.0. These results were somewhat worse than was to be expected after the first operation. The single significant risk factor was an ejection fraction reduced below 50%. The indication for reoperation should therefore be confined to patients with severe angina, good left-ventricular function, bypassable coronary arteries and sufficient graft material available (saphenous vein, internal mammary artery).
1979年至1984年4月，51例患者因术后心绞痛接受再次手术。3例患者早期死亡，4例晚期死亡。所有病例的死亡原因均为心脏相关。二次手术后的平均观察期为24.2个月，平均心功能分级为2.0级。这些结果略逊于首次手术后的预期。唯一显著的危险因素是射血分数降至50%以下。因此，再次手术的指征应仅限于心绞痛严重、左心室功能良好、冠状动脉可搭桥且有足够移植物材料（大隐静脉、乳内动脉）的患者。
