Pshenisnov K P, Shormanov S V
Chair of Operative Surgery and Topographical Anatomy, Medical Institute, Yaroslavl, USSR.
Cor Vasa. 1988;30(3):218-24.
In sixty-four dogs, a comparative analysis was made of structural changes produced in the wall of free autovenous graft and of a transplant strengthened by a spiral reinforcement (lavsan monothread) after transplantation of femoral vein segments into the common carotid artery. Histological and morphometric examinations made in an interval ranging from 3 days to 1 1/2 years after surgery showed that the strengthening of the venous graft by means of a reinforcement prevents its overextension when functioning as an artery, and keeps the endothelium intact. This reduces the danger of thrombotic complications in the operation area. The spiral reinforcement at the same time prevents compression of the vein by surrounding cicatricial tissue as well as an aneurysmatic extension of the transplant.
在64只犬中，对股静脉段移植至颈总动脉后，游离自体静脉移植物壁以及经螺旋增强（拉芙桑单丝）强化的移植物所产生的结构变化进行了比较分析。术后3天至1年半期间进行的组织学和形态计量学检查表明，通过增强手段强化静脉移植物可防止其在作为动脉发挥功能时过度扩张，并保持内皮完整。这降低了手术区域血栓形成并发症的风险。螺旋增强同时还可防止周围瘢痕组织对静脉的压迫以及移植物的动脉瘤样扩张。
