术前静脉注射帕瑞昔布钠对胸外科手术病人术后镇痛效果的影响

目的 探讨术前静脉注射帕瑞昔布钠对胸外科手术病人术后镇痛效果的影响.方法 拟在全身麻醉联合胸段硬膜外阻滞下行胸外科手术病人90例,年龄38～76岁,身高154～181 cm,体重44～82 kg,ASA分级Ⅰ～Ⅲ级.按随机数字表法分为3组(n=30):A组切皮前30 min静脉注射生理盐水2 ml;B组拔除气管导管后静脉注射帕瑞昔布钠40 mg(生理盐水稀释至2 ml);C组切皮前30 min静脉注射帕瑞昔布钠40 mg.经T6,7行硬膜外阻滞,采用舒芬太尼-维库溴铵-异丙酚行麻醉诱导和维持.术后均采用0.125%罗哌卡因和舒芬太尼0.5ug/ml行PCEA,维持VAS评分≤3分.于术后4、12、24、48 h时行BCS舒适度评分,记录术中和术后48 h内阿片类镇痛药用量、不良反应的发生情况.结果 与A组比较,B组和C组术后48 h内舒芬太尼用量减少(P＜0.05),B组术后4 h时BCS舒适度评分升高,C组术后各时点BCS舒适度评分升高,术中舒芬太尼用量减少(P＜0.05).与B组比较,C组BCS舒适度评分升高,术中及术后48 h内舒芬太尼用量减少(P＜0.05).三组不良反应发生率比较差异无统计学意义(P＞0.05).结论 术前静脉注射帕瑞昔布钠40 mg可减少胸外科手术病人围术期阿片类镇痛药物用量.

Effect of intravenous injection of parecoxib before operation on efficacy of postoperative analgesia in patients undergoing thoracic surgery

Objective To investigate the effect of intravenous injection of parecoxib before operation on the efficacy of postoperative analgesia in patients undergoiag thoracic surgery.Methods Ninety ASA Ⅰ -Ⅲ patients,aged 38-76 yr,weighing 44-82 kg,scheduled for thoracic surgery under general anesthesia combined with thoracic epidural block,were randomly divided into 3 groups(n = 30 each): group A,B and C.Epidttral anesthesia was performed at the T6-7 interspace before general anesthesia. Anesthesia was induced with sufentanyl 0.4 μg/kg,vecuronium 0.12 mg/kg and propofol 1.5-2.0 mg/kg.Double-lumen bronchial tube was inserted and the patients were mechanically ventilated.Group A received iv injection of normal saline 2 ml 30 min before skin incision.Group B received iv parecoxib sodium 40 mg after extubation.Group C received iv parecoxib sodium 40 mg 30 min before skin incision.Anesthesia was maintained with propofol,vecuronium,sufentanyl and lidocaine.The patients received patient-controlled epidural analgesia(PCEA)with ropivacaine and 0.5 μg/ml sufentanil after surgery.The VAS score was maintained≤ 3.The comfort level was evaluated with Bruggrmann comfort scale(BCS)at 4,12,24 and 48 h after operation.The consumption of sufentanil during operation and within 48 h after operation was recorded.The adverse reactions were also recorded.Results Compared with group A,the consumption of sufentanil was significantly decreased in group B and C,the BCS score was significantly increased at 4 h after operation in group B,and the BCS score was significantly increased at each time point and the consumption of sufentanil during operation was significantly decreased in group C(P ＜ 0.05).The BCS score was significantly higher,and the consumption of sufentanil during operation and within 48 h after operation was significantly lower in group C than in group B(P ＜ 0.05).There was no significance difference in the adverse reactions among the 3 groups(P ＞ 0.05).Conclusion Intravenous injection of parecoxib 40 mg before operation reduces the perioperative sufentanil consumption in patients undergoing thoracic surgery.