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Experimental and clinical study of influence of high-frequency electric surgical knives on healing of abdominal incision

引用

World Journal of Gastroenterology 2006年第25期12卷 4082-4085页

作者： Guang-Wei Ji Yuan-Zhi Wu Xu Wang Hua-Xiong Pan Ping Li Wan-Ying Du Zhi Qi An Huang Li-Wei Zhang Li Zhang Wen Chen Guang-Hua Liu Hui Xu Quan Li Ai-Hua Yuan Xiao-Ping He Guo-Hua Mei Department of General Surgery 2nd Hospital of Wuhan Iron and Steel Corporation Wuhan 430085 Hubei Province China Department of Pathology 2nd Hospital of Wuhan Iron and Steel Co Wuhan 430085 Hubei Province China Department of Laboratory 2nd Hospital of Wuhan Iron and Steel Co Wuhan 430085 Hubei Province China

AIM： To study the influence of high-frequency electric surgical knives on healing of abdominal incision. METHODS： Two hundred and forty white rats were divided into 10^0, 10^2, 10^5, and 10^8 groups and rat models of abdominal operation were induced by using electric surgical knives and common lancets respectively. Then they were respectively given hypodermic injections of normal saline and 0.2 mL quantitative mixture of Escherichia coil, Staphylococcus aureus and Pseudornonas aeruginosa at a concentration of 10^2, 10^5 and 10^8. On the basis of the animal experiment, 220 patients undergoing abdominal operations （above type Ⅱ） were randomly allocated into one of following three groups： electric knife （EK, 93 cases）, electro-coagulation （EC, 55 cases） and control （72 cases）. high-frequency electric surgical knives were used to dissect abdominal tissues and electro-coagulation for hemostasis in EK group. Common lancets and electro-coagulation were applied in EC group. Common lancets and tieing silk suture were used in the controls. RESULTS： In all the groups except group 10^0, infection rate of incisional wounds made by electric surgical knives were remarkably higher than that with common lancets. Furthermore, there were significant differences in groups 10^2, 10^5, and 10^8 （P 〈 0.05）, but not in group 10^0 （P 〉 0.05） between EK and EC groups. Clinical studies showed a delayed wound healing in 16 cases （17.20%） in EK, 11 cases （16.36%） in EC and 2 cases （2.86%）in the control groups. A significant difference between EK and the control groups （χ^2= 8.57, P 〈 0.01）, and between EC and the control groups （χ^2 = 5.66, P 〈 0.05） was observed, but not between EK and EC （χ^2= 0.017, P 〉 0.05）. CONCLUSION： high-frequency electric knives may remarkably delay abdominal incision healing. Its application should be minimized so as to reduce the possibility of postoperative complications.

关键词： high-frequency electric surgical knives Abdominal incision Healing Infection

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