Brundage B H, Anderson W T, Davia J E, Cheitlin M D, DeCastro C M
Am Heart J. 1977 Jun;93(6):687-97. doi: 10.1016/s0002-8703(77)80063-x.
Ventricular function was evaluated by the development of ventricular function curves from the vulumes stress of angiographic contrast media in 30 patients before and an average of 5 months after coronary bypass surgery. Patients were grouped according to preoperative operative indications, perioperative events, and postoperative status to determine the most important factors affecting postoperative ventricular function. Progression of lesions in the native coronary circulation correlated most significantly with a decrease in postoperative ventricular function. In 18 of 19 patients the changes in native coronary circulation were progression to complete occlusion. Seventy-three per cent of these changes were associated with a patent graft distal to the change. Patients with very ischemic ventricles as evidenced by a markedly positive stress test (greater than 2 mm. ST depression) and/or main left coronary obstruction maintained or improved postoperatively ventricular function. Increase in postoperative ejection fraction was often associated with decrease in aortic mean pressure, making it difficult to use this parameter to evaluate postoperative ventricular function.
通过30例患者冠状动脉搭桥手术前及平均术后5个月时血管造影造影剂的容量压力绘制心室功能曲线，对心室功能进行评估。根据术前手术指征、围手术期事件及术后状态对患者进行分组，以确定影响术后心室功能的最重要因素。自身冠状动脉循环中病变的进展与术后心室功能下降的相关性最为显著。19例患者中有18例自身冠状动脉循环的变化进展为完全闭塞。其中73%的变化与病变远端的移植血管通畅有关。应激试验明显阳性（ST段压低大于2mm）和/或左冠状动脉主干阻塞所证实的严重缺血心室患者术后心室功能维持或改善。术后射血分数增加常与主动脉平均压力降低有关，使得难以用该参数评估术后心室功能。
