蒂部分期分段夹持法对皮瓣断蒂时间的影响

Effect of pedicle staging and segmental clamping on flap pedicle division time

目的探讨蒂部分期分段夹持法对皮瓣断蒂时间的影响。方法制作大鼠腹部随意带蒂皮瓣,采用蒂部分期分段夹持法逐步减少蒂部血流,分别在7、8、9、10、11、12 d完全断蒂,观察皮瓣存活情况及血管密度。结果各组断蒂皮瓣外观、存活率及血管密度均存在差异(P<0.01),随着断蒂时间延长,皮瓣血管密度增高、存活率提高,而10 d与11 d、12 d组间皮瓣存活差异无统计学意义(P>0.05)。结论采用蒂部分期分段夹持法10 d为最佳断蒂时机。

Objective To investigate the effect ofpedicle staging and segmental clamping on flap pedicle separation time. Methods Rrandom pedicle flaps on the abdomen of rats were established. The flap pedicles were separated 7, 8, 9,10,11 and 12 days after pedicle staging and segmental clamping. Flap survival and vascular density were observed. Results The flap appearance, survival rate and vascular density were different among all groups （P〈0.01）. The vascular density and flap survival rates were consistent with the time extension of pedicle division, but flap survival showed no statistical significance among 10, ll and 12 days （P〉0.05）. Conclusion The optimal timing ofpedicle separation may be 10 days after pedicle staging and segmental clamping.