Continuous versus interrupted suture technique in microvascular anastomosis in rats

Abstract Purpose: To compare the continuous and interrupted suture technique on femoral artery on rats after vessel repair and 14 days after. Methods: Twenty rats were operated randomly divided into two group matched according to the suture technique used: interrupted or continuous. We performed a femoral anastomosis on the right femoral artery. We analyzed weight, arterial caliber, anastomosis time and patency after vessel repair and 14 days after. Results: There was no significant difference between groups in the weight (p=0.64), diameter of the femoral artery (p=0.95) and patency (p=1.00). The time spent in the anastomosis was 451 seconds in the continuous group and 718 seconds in the interrupted group, presenting significant difference (p<0.01). Conclusion: The continuous suture technique shows a similar patency rates than interrupted technique, however with a shorter time to perform the anastomosis.

摘要 目的：对比大鼠血管修复后及术后14天时，股动脉连续缝合与间断缝合技术的应用效果。
方法：将20只大鼠按所用缝合方式（间断缝合或连续缝合）匹配后随机分为两组，于右侧股动脉实施股动脉吻合术。分别于血管修复完成后及术后14天，对大鼠体重、动脉管径、吻合耗时及血管通畅率（patency）进行分析检测。
结果：两组大鼠的体重（p=0.64）、股动脉管径（p=0.95）及血管通畅率（p=1.00）均无显著统计学差异。连续缝合组吻合耗时为451秒，间断缝合组为718秒，两组差异具有显著统计学意义（p<0.01）。
结论：连续缝合技术的血管通畅率与间断缝合技术相近，但手术吻合耗时更短。