Taniguchi Kenichirou, Miyamoto Kazuyuki, Kohno Hiroyuki
Department of Cardiovascular Surgery, Japanese Red Cross, Japan.
Kyobu Geka. 2012 Jun;65(6):433-9.
We evaluated the correlation between the intraoperative flow of coronary artery bypass grafting (CABG) and the patency of grafts at midterm follow-up. When internal mammary arteries were used as grafts, there was no correlation between graft flow rate and graft patency rate. On the other hand, when saphenous vein was used, the greater graft flow was associated with better graft patency. Receiver operator characteristic( ROC) analysis identified the optimum threshold for the intraoperative flow rate to predict the patency at midterm follow-up as 23 ml/min (sensitivity 78%, specificity 71%). The difference in the correlation( of flow rate with patency rate) between the 2 graft types was attributed to the difference of physiological reaction of each type of grafts.
我们评估了冠状动脉旁路移植术（CABG）术中血流与中期随访时移植血管通畅性之间的相关性。当使用乳内动脉作为移植血管时，移植血管流速与移植血管通畅率之间无相关性。另一方面，当使用大隐静脉时，较高的移植血管血流与较好的移植血管通畅性相关。受试者工作特征（ROC）分析确定，术中流速预测中期随访通畅性的最佳阈值为23 ml/min（敏感性78%，特异性71%）。两种移植血管类型（流速与通畅率）相关性的差异归因于每种移植血管类型生理反应的差异。
