Levin D C, Beckmann C F, Sos T A, Sniderman K
Radiology. 1982 May;143(2):413-6. doi: 10.1148/radiology.143.2.6978501.
Preoperative and postoperative angiograms were compared in 81 patients who had undergone coronary artery bypass surgery. In these patients, 135 bypassed vessels had had critical stenoses or total occlusion; 99 of these bypasses (73.3%) were patent. Of 36 bypassed vessels that had had noncritical stenoses, 26 (72.2%) were patent. This difference was not significant. Thus, competitive inflow does not lead to excessive graft failure in noncritically diseased vessels, and they can be bypassed with the same expectation of success as critically obstructed vessels. The risk and the advantages of bypassing mild lesions at the same time that severe obstructions are surgically treated are discussed.
对81例行冠状动脉搭桥手术的患者的术前和术后血管造影进行了比较。在这些患者中，135条搭桥血管存在严重狭窄或完全闭塞；其中99条搭桥血管（73.3%）通畅。在36条存在非严重狭窄的搭桥血管中，26条（72.2%）通畅。这种差异不显著。因此，竞争性血流不会导致非严重病变血管的搭桥失败过多，并且可以像严重阻塞血管一样，以相同的成功预期对其进行搭桥。讨论了在手术治疗严重梗阻的同时对轻度病变进行搭桥的风险和益处。
