Thomas A J, Pontes J E, Buddhdev H, Pierce J M
Fertil Steril. 1979 Sep;32(3):324-8. doi: 10.1016/s0015-0282(16)44243-3.
Four techniques of vasovasostomy were evaluated in two groups of twelve dogs each. In group 1, one side was anastomosed by a standard technique over a Silastic stent and the other side was anastomosed using a two-layer microsurgical technique. In group 2, one side was anastomosed by a standard technique without a stent and the other side was anastomosed using a one-layer microsurgical technique. Patency was evaluated by methylene blue injection distal to the anastomosis and was found to be about the same for all three groups in which anastomosis was performed without stents. The stented group had a high rate of obstruction. Histologic evaluation, however, showed superiority of both microsurgical techniques over each of the stnadard procedures.
在两组各12只狗身上评估了四种输精管吻合技术。在第1组中，一侧采用标准技术在硅橡胶支架上进行吻合，另一侧采用双层显微外科技术进行吻合。在第2组中，一侧采用无支架的标准技术进行吻合，另一侧采用单层显微外科技术进行吻合。通过在吻合口远端注射亚甲蓝来评估通畅情况，发现所有未使用支架进行吻合的三组通畅率大致相同。使用支架的组阻塞率较高。然而，组织学评估显示，两种显微外科技术均优于每种标准手术。
