Bowald S, Busch C, Eriksson I
Acta Chir Scand. 1980;146(6):391-5.
Seven to twenty cm long bypass grafts were inserted between the upper and lower part of the descending aorts of 20 young pids with end-to-side technique. The aorta between the anastomoses was closed by a ligature. As graft materials were used circular polyglactin 910 (Vicryl) mesh tubes (group I), external PTFE graft (Impra) and internal polyglactin mesh tube (group II), PTFE graft (group III) and external dacron mesh tube and internal polyglactin mesh tube (group IV). The biological process taking place in the grafted area was studied by light microscopy. The following observations were made: (1) The regenerative capacity of the pig aortic tissue permits 7 to 15 cm long polyglactin mesh grafts to be replaced by a new endothelialized vessel wall imitation. (2) When resorbable and non-resorbable materials were combined to form a composite graft (groups II and IV) the result proved to be a prosthesis with an internal covering of endothelialized arterial tissue.
采用端侧技术，在20只幼猪降主动脉的上下部分之间插入7至20厘米长的旁路移植物。吻合口之间的主动脉用结扎线封闭。作为移植物材料，使用了环形聚乙醇酸910（薇乔）网片管（第一组）、外部聚四氟乙烯移植物（英普拉）和内部聚乙醇酸网片管（第二组）、聚四氟乙烯移植物（第三组）以及外部涤纶网片管和内部聚乙醇酸网片管（第四组）。通过光学显微镜研究移植区域发生的生物学过程。得出以下观察结果：（1）猪主动脉组织的再生能力使7至15厘米长的聚乙醇酸网片移植物能够被新的内皮化血管壁替代物所取代。（2）当可吸收和不可吸收材料组合形成复合移植物时（第二组和第四组），结果证明是一种内部覆盖有内皮化动脉组织的假体。
