目的:探讨丙泊酚和瑞芬太尼联合应用对兔小肠系膜微循环的影响。方法: 将30只新西兰大白兔随机分为对照组(C组),丙泊酚组(P组),丙泊酚联合瑞芬太尼组(P+R组),每组10只。建立兔全麻模型后,C组持续泵入生理盐水,P组静脉持续泵入丙泊酚,P+R组静脉持续泵入瑞芬太尼和丙泊酚,分别记录3组给药前及给药0.5 h后新西兰大白兔的心率(HR)、平均动脉压(MAP),采用旁流暗视野技术测定新西兰大白兔小肠系膜微循环总血管密度(TVD)、灌注血管密度(PVD)、灌注血管比例(PPV)、微血管流动指数(MFI)。结果:与C组相比,给药后P组HR减慢, MAP 轻度下降,微循环血流明显增加,TVD、PVD、PPV、MFI均有所增加,差异均有统计学意义(P<0.05)。与C组相比,给药后P+R组HR减慢,MAP显著下降,微循环血流明显减少,且差异均有统计学意义(P<0.05)。结论:丙泊酚对兔小肠系膜循环有改善作用,丙泊酚和瑞芬太尼联合应用对兔小肠系膜微循环有抑制作用。
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作者简介 张杨(1982-),男,主治医师,硕士在读,研究方向:临床麻醉;通信作者:于泳浩,E-mail:yuyonghao@126.com.