Abstract: Objective To investigate the application advantages of deep neuromuscular block in obese patients undergoing robot-assisted laparoscopic radical prostatectomy. Method Forty-eight obese patients undergoing robot-assisted laparoscopic radical prostatectomy were randomly divided into moderate neuromuscular block group （group M） and deep neuromuscular block group （group D）. Patients ingroup M were induced with cisatracurium 0.15~0.2 mg/kg iv, followed by cisatracurium 5 mg iv at an interval of about 45 min. Patients in group D was given 0.6 mg/kg rocuronium at induction, and then in the maintenance of anesthesia, rocuronium was given 0.6 mg/kg iv before skin incision and pumped 5~10 μg/（kg·min） when neuromuscular block began to recover. The following targets werecompared between the two groups： the intubation time, the wake-up time, VAS pain score and the incidence of agitation after extubation. The blood gas analysis was performed before induction （T₀）, 1 hour after the operation （T₁）, at the end of the operation （T₂） and before leaving the PACU（T₃）, and the levels of lactic acidas and blood glucose were compared between the two groups. Results Compared with group M, the intubation time and resuscitation time in group D were shorter, and the VAS pain score and the incidence of agitation after extubation were also lower. At the time of T₂ and T₃, the levels of lactic acid and blood glucose in group D were lower than group M. The differences between the two groups were statistically significant （P < 0.05）. Conclusion Compared with the moderate neuromuscular block, applying the strategy of deep neuromuscular block could shorten the intubation time, accelerate the recovery, reduce postoperative pain and agitation stress in obese patients undergoing robot and laparoscopic assisted radical prostatectomy.

Key words: obesity, robot and laparoscopic assisted surgery, deep neuromuscular blockade, prostate cancer, moderate neuromuscular blockade

摘要： 目的 探讨“深肌松”方案在肥胖患者行机器人辅助腹腔镜下根治性前列腺癌切除术中的应用效果及优势。方法 择期行机器人辅助腹腔镜下根治性前列腺癌切除术的肥胖患者48例,随机分为常规（中度）肌松组（M组）和深肌松组（D组）。两组采用统一的镇静镇痛方案,其中M组诱导时予顺式阿曲库铵0.15~0.2 mg/kg iv,之后每间隔约45 min~1 h单次静推顺式阿曲库铵5 mg维持;D组诱导时则予罗库溴铵0.6 mg/kg静注,PTC=1~2时行气管插管;麻醉维持采用连续输注,切皮前予罗库溴铵0.6 mg/kg iv,当神经肌肉阻滞开始恢复时以5~10 μg/（kg·min）泵注。比较两组诱导插管时间、苏醒时间、拔管后视觉模拟评分法VAS评分及躁动发生率;分别于诱导前（T₀）、手术开始1小时（T₁）、术毕时（T₂）及离开PACU前（T3）抽取动脉血2 mL行血气分析,比较两组患者乳酸、血糖等结果的差异。结果 与M组相比,D组插管时间、苏醒时间较短,拔管后VAS疼痛评分及躁动发生率较低,两组差别有统计学意义（P<0.05）。同时刻相比,T₂、T₃时刻D组的乳酸、血糖值较低,与M组比较差别有统计学意义（P<0.05）。结论 与常规肌松组相比,“深肌松”麻醉方案可缩短该类患者插管时间,加速苏醒,减轻术后疼痛和躁动应激,或可改善总体麻醉质量。

关键词: 中度肌松, 深度肌松, 前列腺癌, 肥胖, 机器人辅助腹腔镜手术