微型血管吻合夹与针线吻合方法的比较研究

目的 为显微外科探索更理想的血管吻合方法。方法 选用新西兰兔20只，以颈动脉为吻合血管，左侧用微型吻合夹吻合，右侧用传统针线吻合，对比研究两种吻合方法其吻合口术后第1天、第14天手术显微镜、光镜及电子显微镜下的组织变化。结果 针线吻合法用时平均15分钟，吻合夹法用时为2－5分钟；两组吻合方法的血流通畅率相同；吻合口内皮细胞生长速度相似，但是，吻合夹不损伤血管内膜，管腔内无异物。结论 微型血管吻合夹方法操作简便，可明显节省吻合时间，并减少血栓形成因素，吻合效果可靠。

COMPARATIVE STUDY OF MICROVASCULAR ANASTOMOTIC CLIPS AND SUTURE IN SMALL VESSEL ANASTOMOSIS

Objective To explore an ideal way of small vessel anastomosis for microsurgery. Methods Anastomosis of both carotid arteries were performed in 20 rabbits. One side of the arteries were anastomosed with anastomotic clips, the other side of the arteries, as comparison, were anastomosed with suture. The vessels were harvested at first and 14th day after operation and were evaluated using operating microscope, light microscope and electronic microscope. Results The average anastomotic time for suture was about 15 minutes, while for the clips was 2 to 5 minutes. There were no difference in patency between the two techniques. Endothelialization at the anastomotic sites were both completed 14 days postoperatively. However, for the anastomotic clips, there were no endothelia damage and foreign bodies formation inside the vessels. Conclusion This experiment has confirmed that the anastomotic clip's procedure provides a very safe and easy way to perform anastomosis and reduce the incidence of thromboses.