目的 探讨异氟醚通过抑制细胞间黏附分子（ICAM-1）表达参与减轻肝脏缺血-再灌注（IR）损伤的可能调节机制。 方法 32只雌性SD大鼠分为4组。A组大鼠行腹腔注射1%戊巴比妥钠40 mg/kg麻醉，进行手术但不阻断入肝血流；B组1%戊巴比妥钠麻醉后行部分肝脏IR；C组大鼠仅接受1.0 MAC异氟醚吸入麻醉，不阻断血流；D组采用1.0 MAC异氟醚麻醉，建立肝脏IR模型。肝脏缺血60 min，再灌注3 h后取肝组织和血液标本，检测血清丙氨酸转氨酶（ALT）和天冬门氨酸转氨酶（AST）、肝组织ICAM-1和肝组织还原型谷胱甘肽（GSH）、脂质过氧化物丙二醛（MDA）和超氧化物歧化酶（SOD）含量。 结果 与戊巴比妥钠麻醉比较，采用异氟醚处理后明显降低血清ALT和AST的水平，再灌注肝组织内GSH、SOD含量明显高于而MDA含量降低，同时抑制肝组织ICAM-1的表达。 结论 异氟醚麻醉能够有效减轻肝脏IR损伤，抑制氧自由基的生成和释放，具体机制可能与抑制ICAM-1表达致使细胞内GSH含量增加密切相关。
【摘要】 目的 评估罗哌卡因切口预注射联合曲马多对腹腔镜下胆囊切除术（laparoscopic cholecystectomy，LC）术后疼痛的影响。 方法 选取2010年6月-2011年4月行择期LC患者120例，年龄18~65岁，美国麻醉师协会Ⅰ~Ⅱ级，采用完全随机的设计分组：0.75%罗哌卡因10 mL切口注射+术毕静脉注射曲马多（2 mg/kg）组（A组，n=30）；生理盐水10 mL切口注射+术毕静脉注射曲马多（2 mg/kg）组（B组，n=30）；0.75%罗哌卡因10 mL切口注射+术毕静脉注射生理盐水10 mL组（C组，n=30）；生理盐水组（D组，n=30）。术后2、4、6、12、24 h分别评估右上腹部、右肩背部和腹壁切口疼痛进行视觉模拟评分（visual analog scale，VAS）。 结果 右上腹部及右肩背部疼痛VAS比较：与D组相比，A、B组VAS评分明显减少（Plt;0.05），而C组无明显统计学差异（Pgt;0.05）；B组与A组相比，2~24 h VAS评分明显增加（Plt;0.05）；C组与A组相比，2~24 h VAS评分增高（Plt;0.01）。腹壁切口疼痛VAS比较:与D组相比，A、B、C组VAS评分明显减少（Plt;0.05）；B组与A组相比，2~24 h VAS评分明显增加（Plt;0.05）；C组与A组相比，2~24 h VAS评分显著增高（Plt;0.01）。 结论 腹腔镜胆囊切除术术前切口罗哌卡因预注射-术毕曲马多静脉注射对减轻术后疼痛有良好效果。【Abstract】 Objective To evaluate the effects of preincisional ropivacaine plus tramadol intravenous injection on postoperative pain relief after laparoscopic cholecystectomy (LC). Methods One hundred and twenty patients aged between 18 and 65 years old with an ASA score from Ⅰ to Ⅱ who underwent elective laparoscopic cholecystectomy from June 2010 to April 2011 comprised this study. The patients were randomly divided into four groups with 30 in each group. Patients in group A had an infusion of 0.75% ropivacaine (10 mL) at the beginning of LC plus tramadol (2 mg/kg) intravenous injection at the end. Group B patients had an infusion of normal saline 0.9% (10 mL) at the beginning of LC plus tramadol (2 mg/kg) intravenous injection at the end. Patients in group C had an infusion of 0.75% ropivacaine (10 mL) at the beginning of LC plus normal saline 0.9% (10 mL) intravenous injection at the end. Group D (control group) patients had neither ropivacaine nor tramadol infusion. Pain in the right upper abdomen, right shoulder tip and abdominal incision were assessed at hour 2, 4, 6, 12, and 24 postoperatively using a visual analog score (VAS). Results Right upper abdomen and right shoulder tip pain VAS comparison: significantly lower pain scores were observed in group A and B (Plt;0.05) than in group D (Pgt;0.05). Group A had significantly lower pain scores than group B (Plt;0.05) and C (Plt;0.01) at postoperative hours 2, 4, 6, 12, and 24. Abdominal incision pain VAS comparison: VAS scores were significantly lower in group A, B and C than in group D (Plt;0.05). Group A had significantly lower pain scores than group B (Plt;0.05) and C (Plt;0.01) at postoperative hours 2, 4, 6, 12, and 24. Conclusion Preincisional ropivacaine at the beginning of LC combined with tramadol intravenous injection at the end can effectively alleviate postoperative pain after laparoscopic cholecystectomy.
目的:观察经喉罩全凭七氟醚吸入麻醉在小儿腹股沟疝手术中的临床应用效果。方法：60例ASAⅠⅡ级择期行腹股沟疝囊高位结扎术的患儿随机分成喉罩七氟醚组（实验组）和氯胺酮组（对照组）。实验组以七氟醚诱导后置入喉罩，经喉罩全凭七氟醚吸入维持麻醉，对照组以氯胺酮和异丙酚诱导和维持麻醉。比较两组血流动力学、呼气末CO2分压（PETCO2）、手术时间、苏醒时间、出室时间（在恢复室内停留时间）。记录术中和术后不良反应如体动反应、嗜睡、恶心呕吐等发生情况。结果：对照组在T3、T4、T5时点HR、BP均明显高于实验组相应时点（Plt;0.05）。实验组患儿苏醒时间和出室时间均明显低于对照组（Plt;0.05）。对照组体动反应和嗜睡发生率明显高于实验组（Plt;0.05）。实验组术后恶心发生率明显高于对照组（Plt;0.05）。结论：经喉罩全凭七氟醚吸入麻醉用于小儿腹股沟疝手术，术中经过更平稳，麻醉恢复更快，术中及术后不良反应少。
【摘要】 目的 探讨腰硬联合麻醉复合丙泊酚恒速输注清醒镇静的可行性、理想的药物剂量、术中知晓情况以及麻醉质量和效果。 方法 收集2009年3-12月480例美国麻醉医师协会（ASA）Ⅰ～Ⅲ级拟在腰硬联合麻醉下行下腹部、会阴部、下肢手术的患者480例，随机分为咪达唑仑组（M组）、丙泊酚Ⅰ组（PA组）、丙泊酚Ⅱ组（PB组）、丙泊酚Ⅲ组（PC组），每组各120例。四组患者均于腰2-3或腰3-4行腰硬联合麻醉，蛛网膜下腔注入轻比重0.2 %布比卡因12～15 mg，麻醉平面确切后，M组予以咪达唑仑0.04~0.06 mg/kg，PA组先予以负荷量丙泊酚0.50 mg/kg再以2.00 mg/（kg•h）剂量持续泵注，PB组予以负荷量丙泊酚0.75 mg/kg再以3.00 mg/（kg•h）剂量持续泵注，PC组予以负荷量丙泊酚1.00 mg/kg再以3.75 mg/（kg•h）剂量持续泵注。观察患者给药前（T0）、给药1（T1）、3（T2）、5（T3）、10（T4）、30（T5）、60 min（T6）各时点血流动力学平均动脉血压（MAP）、心率（HR）的变化、脑电双频指数（BIS）值及镇静评分、术中所看到的图片的回忆及不良反应。 结果 各组在给予镇静药后MAP、HR均有所下降，但测量值的变化在正常范围内；在T3时间点，各组BIS值及镇静/警醒OAA/S评分降低，与T0比较，差异有统计学意义（Plt;0.05）；与其他3组比较，在T4、T5、T6时点PC组BIS值与OAA/S评分降低，差异有统计学意义（Plt;0.05），PC组的镇静遗忘满意率高于其他3组；各组间未见发生严重的舌后坠、呼吸暂停和血氧饱和度（SpO2）lt;90%。 结论 在下腹部、下肢手术中，应用腰硬联合麻醉复合1.00 mg/kg负荷量的丙泊酚继而以3.75 mg/（kg•h）剂量持续泵注，可取得良好的镇静效果，不良反应小。【Abstract】 Objective To investigate the feasibility, ideal dose, intra-operative awareness as well as the quality and effectiveness of constant infusion of propofol under combined spinal-epidural anesthesia (CSEA) for conscious sedation. Methods A total of 480 patients at ASA grade Ⅰ-Ⅲ to be operated in the lower abdomen, perineum and lower limbs under CSEA from March to December 2009 were randomly divided into four groups: midazolam group (M group), propofol group Ⅰ (PA group), propofol group Ⅱ (PB group), and propofol group Ⅲ (PC group), with 120 patients in each group. All four groups of patients underwent CSEA at L2-3 or L3-4 and accepted pinal injection of 12-15 mg of 0.2% hypobaric bupivacaine. After the anesthetic plane was confirmed, patients in M group accepted 0.04-0.06 mg/kg of midazolam; patients in PA group accepted propofol at a loading dose of 0.50 mg/kg followed by continuous infusion at a dose of 2.00 mg/(kg•h); patients in PB group accepted propofol at a loading dose of 0.75 mg/kg followed by continuous infusion at a dose of 3.00 mg/(kg•h); patients in PC group accepted propofol at a loading dose of 1.00 mg/kg followed by continuous infusion at a dose of 3.75 mg/(kg•h). The change of hemodynamics including the mean arterial pressure (MAP) and the heart rate (HR), bispectral index (BIS) values, sedation scores, memory of pictures seen during operation and adverse effects before drug administration (T0), at minute 1 (T1), 3 (T2), 5 (T3), 10 (T4), 30 (T5) and 60 (T6) after drug administration were observed. Results MAP and HR decreased in all the four groups after administration of sedatives, but the changes of measured values were within normal ranges. BIS value and the Observer’s Assessment of Alertness and Sedation (OAA/S) scale decreased in all groups at T3, compared with those at T0 (Plt;0.05). Compared with the other 3 groups, BIS valueand OAA/S scale were significantly lower in PC group at T4, T5 and T6 (Plt;0.05), and the satisfaction rate of sedation and amnesia was much higher. No serious glossocoma, apnea and SpO2 below 90% was observed in all the four groups. Conclusion During the surgery of lower abdomen and lower limbs, application of CSEA combined with propofol at a loading dose of 1.00 mg/kg followed by continuous infusion at a dose of 3.75 mg/(kg•h) can achieve a good sedative effect, with little side effect.
目的:本文回顾性分析总结32例心脏瓣膜置换术同期改良迷宫术患者的麻醉处理。方法:32例瓣膜病合并心房颤动患者,ASA分级Ⅱ-Ⅳ级,心功能ⅢⅣ级,采用以芬太尼为主的全身麻醉,术中以硫酸镁和艾司洛尔调控应激反应,复温后多联合使用多巴胺或(和)多巴酚丁胺5～10μg/kg·min、硝酸甘油或硝普钠0. 5～5μg/kg·min等血管活性药物以达到扩张血管增强心肌收缩力、降低心脏负荷、维持循环稳定的目的。停机后预防性安置心外膜起搏导线,使用异丙肾上腺素后心率仍慢者,及时运用临时起搏,保证有效的心肌收缩和稳定的心率。结果:射频消融时间为32±5分钟,主动脉阻断时间89±12分钟; 体外循环时间109±20分钟。心脏自动复跳29例, 电除颤复跳3例, 32例患者术后均为窦性心律。5例患者使用临时起搏器。结论:完善的术前准备和围术期重视心肺功能的支持治疗, 合理调控应激反应等措施是手术成功的重要基础。