硬膜外复合全身麻醉对梗阻性黄疸术后肠屏障功能的影响

目的探讨硬膜外复合全身麻醉对梗阻性黄疸患者术后肠屏障功能的影响。方法选择梗阻性黄疸拟行手术治疗患者40例,男15例,女25例,年龄26~65岁,ASAⅠ~Ⅲ级,手术时间90~320min,血清总胆红素(TBIL)水平100μmol/L。所有患者随机分为全凭静脉麻醉组(GA组)和硬膜外复合全麻组(GE组),每组20例。GA组患者面罩吸氧后快速诱导气管插管行全身麻醉,GE组患者取左侧卧位行T8~9或T9~10间隙硬膜外穿刺并置管,改平卧位后予以2%利多卡因5ml试验量,5min确认无麻醉并发症及其他异常后行全身麻醉。于入手术室后(T1)、术毕(T2)、术后24h(T3)和术后48h(T4)分别采集外周静脉血,采用ELISA法测定血浆D-乳酸(D-LA)浓度;PCR技术定性检测大肠杆菌特异性β-半乳糖苷酶基因BG;提取血浆标本中的细菌DNA,进行PCR扩增,凝胶电泳后扫描凝胶并分析结果。结果与T1时比较,T2~T4时两组血浆D-LA浓度明显逐步升高(P0.05);T2~T4时GA组D-LA浓度明显高于GE组(P0.05)。PCR技术定性检测大肠杆菌特异性半乳糖苷酶基因BG,扩增长度为762bp。T1时两组患者大肠杆菌DNA检测结果均为阴性,术后两组患者大肠杆菌DNA阳性例数随时间依次增多,且T4时GA组明显高于GE组(P0.05)。结论与全凭静脉麻醉比较,硬膜外复合全身麻醉能够减轻梗阻性黄疸患者术后肠屏障功能的损伤。

Effects of combined general and epidural anesthesia on intestinal barrier function after obstructive jaun-dice surgery

Objective To investigate the effects of combined general and epidural anesthesia on intestinal barrier function in patients with obstructive jaundice after surgery.Methods Forty patients with obstructive jaundice,male 1 5 cases,female 25 cases,aged 26-65 years,of ASA Ⅰ-Ⅲ,with TBIL >100 μmol/L were randomly divided into two groups (n =20):the general intravenous anes-thesia group (group GA)and the combined general and epidural anesthesia group (group GE).Pa-tients of group GA with oxygen mask rapid intubate induction of endotracheal after general anesthesia. Patients of group GE take left side line of T8~9 or T9 ~1 0 segmental epidural puncture and insert cathe-ter,after changing the hypothesis to be 2% lidocaine 5 ml for test quantity,confirm without anesthe-sia complications and other abnormalities after general anesthesia 5 minutes later.Peripheral venous blood was sampled when entering the operating room (T1 ),and at the end of operation (T2 ),24 hours after operation(T3 )and 48 hours after operation (T4 ).The concentration of D-lactate (D-LA) was measured using ELISA method.Also polymerase chain reaction (PCR)was performed for quali-tative detection of Escherichia coli specific beta galactosidase gene BG.Results Compared with T1 , Plasma D-LA level in two groups at T2-T4 were increased gradually and it was significantly higher in group GA than in group GE at T2-T4 with significant difference (P <0.05).The Escherichia coli DNA test was negative at T1 ,the positive rate of Escherichia coli DNA gradually increased,and it was significantly higher in group GA than in group GE at T4 with significant difference(P <0.05).Conclusion Compared with the general intravenous anesthesia, general anesthesia combined with epidural anesthesia may relieve the intestinal barrier injury in patients with obstructive jaundice after surgery.