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枸橼酸西地那非促进大鼠穿支皮瓣成活的研究 被引量:2

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摘要 目的 探讨枸橼酸西地那非对大鼠多血管体穿支皮瓣成活的影响. 方法 2012年11月至2013年3月,采用大鼠背部单侧三血管体穿支皮瓣模型,将实验动物36只随机分为3组(每组12只),生理盐水对照组(A组):1.5 ml生理盐水灌胃;枸橼酸西地那非组(B组):1.5 ml的100 mg/kg浓度枸橼酸西地那非盐水灌胃;西地那非加亚硝基左旋精氨酸甲酯(L-NAME)组(C组):1.5 ml的100 mg/kg浓度枸橼酸西地那非盐水灌胃加100 mg/kg L-NAME腹腔注射.连续给药7 d后,检测3组皮瓣的存活率,每组取6只,行明胶氧化铅造影.余下6只取皮瓣闭塞血管(choke vessels)区域(Ⅰ、Ⅱ区)组织做光镜观察,光镜下测量血管口径及平均微血管密度(MVD).检测结果用t检验,P<0.05为差异有统计学意义. 结果 术后7d,A、B、C组成活率分别为(82.11±2.93)%、(89.04±6.11)%和(82.69±4.03)%. B组皮瓣面积成活率明显高于其余两组,且与其余两组之间差异有统计学意义(P<0.05).血管造影和光镜结果显示:A组choke Ⅰ区发生扩张,Ⅱ区未见明显扩张;B组血管扩张明显,choke Ⅰ、Ⅱ区均发生明显的扩张;C组与A组相近. 结论 枸橼酸西地那非在大鼠皮瓣术后能减小血流阻力,提高大鼠多血管体穿支皮瓣成活率.
出处 《中华显微外科杂志》 CSCD 北大核心 2014年第1期67-69,共3页 Chinese Journal of Microsurgery
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