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首页> 外文期刊>International journal of colorectal disease. >Electrical field stimulation promotes anastomotic healing in poorly perfused rat colon.
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Electrical field stimulation promotes anastomotic healing in poorly perfused rat colon.

机译:电场刺激可促进灌注不良的大鼠结肠的吻合口愈合。

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INTRODUCTION: Hypoperfusion of the bowel is a risk factor for anastomotic failure. Electrical field stimulation has been shown to improve repair in ischemic tissue, but its influence in hypoperfused colon has not been investigated. The hypothesis of this experimental animal study was that electrical field stimulation improves anastomotic healing in ischemic bowel. MATERIALS AND METHODS: Thirty rats were divided evenly into three groups: control, ischemia/placebo, and ischemia/test group. Ischemia was induced by ligation of the arterial supply to the proximal colon. The watershed area was identified and transected. Field stimulation was achieved by application of negatively charged diethylaminoethyl Sephadex beads in methylcellulose gel to the colonic epithelium prior to anastomosis. The placebo group had methylcellulose gel only applied and control animals had anastomosis only. Anastomotic strength was measured using anastomotic bursting pressure and hydroxyproline content. Systemic effect was investigated via interleukin-6 and vascular endothelial growth factor assay. RESULTS: The ischemia/electrical field stimulation (EFS) group had significantly increased bursting pressure and hydroxyproline content in comparison with the placebo group (P < 0.001). Serum cytokine levels were unaffected. CONCLUSION: Negatively charged EFS improves anastomotic healing in hypoperfused colon without induction of systemic cytokines and has potential as a local treatment in high-risk bowel anastomosis.
机译:简介:肠灌注不足是吻合口衰竭的危险因素。电场刺激已显示可改善缺血组织的修复,但尚未研究其对灌注不足结肠的影响。该实验动物研究的假设是电场刺激可改善缺血性肠的吻合口愈合。材料与方法:30只大鼠平均分为三组:对照组,缺血/安慰剂和缺血/试验组。结扎近端结肠的动脉可诱发缺血。分水岭地区已确定并横切。通过在吻合术前将甲基纤维素凝胶中带负电荷的二乙基氨基乙基葡聚糖凝胶珠子施加到结肠上皮,可以实现野外刺激。安慰剂组仅应用了甲基纤维素凝胶,对照组动物仅进行了吻合。使用吻合口破裂压力和羟脯氨酸含量测量吻合强度。通过白介素6和血管内皮生长因子测定研究全身作用。结果:与安慰剂组相比,缺血/电场刺激(EFS)组的爆裂压力和羟脯氨酸含量显着增加(P <0.001)。血清细胞因子水平不受影响。结论:带负电的EFS可以改善低灌注结肠的吻合口愈合,而不会诱导全身细胞因子,并且有可能作为局部治疗高危肠吻合的方法。

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