Louagie Y A, Haxhe J P, Jamart J, Buche M, Schoevaerdts J C
Division of Cardiovascular and Thoracic Surgery, University Hospital of Mont-Godinne (Catholic University of Louvain), Yvoir, Belgium.
Ann Thorac Surg. 1994 Sep;58(3):742-9. doi: 10.1016/0003-4975(94)90738-2.
A pulsed Doppler flowmeter was used in a series of 352 consecutive patients undergoing isolated coronary artery bypass grafting. Doppler flow measurements were available on 909 single terminolateral bypass grafts (327 internal mammary arteries and 582 saphenous veins) and 58 sequential bypass grafts anastomosed to combinations of arteries. Flow (mL/min) categorized as a function of the recipient artery was distributed as follows: left anterior descending coronary artery, 69.9 +/- 2.5; right coronary artery, 68.0 +/- 5.0; diagonals, 61.0 +/- 4.1; obtuse marginals, 55.9 +/- 2.2; and posterior descending coronary artery, 53.3 +/- 3.0 (p < 0.001). Graft outflow obstruction resulting from torsion of the graft pedicle or anastomotic stricture was identified in 7 patients (2%). After graft revision, flow increased from 9 +/- 4 mL/min to 69 +/- 13 mL/min (p = 0.023), and velocity rose from 4.6 +/- 1.1 cm/s to 18.1 +/- 2.4 cm/s (p = 0.009). In conclusion, the system was adequate for operative use and allowed identification and correction of technical errors.
对连续352例接受单纯冠状动脉旁路移植术的患者使用了脉冲多普勒流量计。获得了909条单端侧旁路移植物（327条乳内动脉和582条大隐静脉）以及58条与动脉组合吻合的序贯旁路移植物的多普勒血流测量值。根据受体动脉分类的血流（mL/分钟）分布如下：左前降支冠状动脉，69.9±2.5；右冠状动脉，68.0±5.0；对角支，61.0±4.1；钝缘支，55.9±2.2；以及后降支冠状动脉，53.3±3.0（p<0.001）。7例患者（2%）发现因移植物蒂扭转或吻合口狭窄导致的移植物流出道梗阻。移植物修复后，血流从9±4 mL/分钟增加到69±13 mL/分钟（p = 0.023），流速从4.6±1.1 cm/秒升至18.1±2.4 cm/秒（p = 0.009）。总之，该系统适用于手术，能够识别并纠正技术错误。
