环形CO2激光吻合兔小肠

目的: 对兔小肠行CO2激光焊接和传统丝线缝合,探讨小肠CO2激光焊接的可行性. 方法: 选用家兔30只,4只做为短期试验组,26只做为长期试验组,运用低功率(500 mW环形CO2激光焊接)并与临床外科常规缝合比较,短期试验组测吻合口爆裂压力,长期试验组观察吻合后3 d,1,2和3 wk的组织病理学变化. 结果: 激光焊接吻合术方法简便、快速,在手术后吻合口爆裂压力理想,愈合早期炎症细胞比线缝合吻合术后愈合早期的炎症细胞少,无粒状缝隙. 结论: 用低功率CO2激光焊接小肠组织是可行的.

Small bowel anastomosis in rabbits with CO2 laser welding compared with suture repair

AIM: To study the feasibility of utilizing CO_2 laser welding in bowel anastomosis and to compare it with sutch repair. METHODS: Thirty rabbits were divided into 2 groups: 4 as short-term group, 26 as long-term group. Then, they underwent anastomosis by using 500 mW CO_2 laser and the effects were compared with those by traditional stitch suture. Pressure of anastomotic stoma was measured in the rabbits of short-term group. The histopathological changes were observed 3 d, 1, 2, 3 weeks after anastomosis in the rabbits of long-term group. RESULTS: CO_2 laser welding, compared with traditional suture, had some advantages such as simplicity, quickness, the ideal pressure of anastomotic stoma after operation and the reduced inflammatory cells at the early stage. CONCLUSION: These preliminary observation suggests that small bowel anastomosis with CO_2 laser may be feasible.