摘要目的 评价帕瑞昔布钠预防病人开胸术后疼痛综合征的影响.方法 择期开胸手术病人90例,ASA分级Ⅰ或Ⅱ级,年龄40～64岁,体重50 ～ 80 kg,采用随机数字表法,将其分为3组(n=30):对照组(C组)和不同帕瑞昔布钠处理组(P1组和P2组).于切皮前20 min,P1组和P2组静脉注射帕瑞昔布钠40 mg,C组给予等容量生理盐水;P2组术后每12 h追加帕瑞昔布钠40 mg,共6次.3组均采用全麻联合硬膜外麻醉,术后镇痛采用PCEA,镇痛不完善时,肌肉注射吗啡,维持VAS评分≤3分.记录术后72 h内吗啡用量、不良反应发生情况和术后6个月内疼痛(VAS评分＞3分)发生情况和持续时间.术后72 h时测定凝血功能.结果 P2组术后72 h内未使用吗啡.3组病人术后72h时凝血功能均未见异常.与C组比较,P1组术后6个月内疼痛发生率和持续时间差异无统计学意义(P＞0.05),P2组术后6个月内疼痛发生率降低和持续时间缩短,P1组和P2组术后恶心、呕吐和皮肤瘙痒的发生率降低(P ＜0.05或0.01);与P1组比较,P2组术后恶心、呕吐和皮肤瘙痒的发生率降低(P＜0.01).结论 帕瑞昔布钠持续使用72 h可降低病人开胸术后疼痛综合征的发生,且不增加不良反应发生几率.

abstractsObjective To evaluate the efficacy of parecoxib sodium for prevention of post-thoracotomy pain syndrome.Methods Ninety ASA physical status Ⅰ or Ⅱ patients,aged 40-64 yr,weighing 50-80 kg,scheduled for elective thoracotomy,were equally and randomly divided into 3 groups using a random number table:control group (group C) and two different treatments with parecoxib sodium groups (P1 and P2 groups).At 20 min before skin incison,parecoxib sodium 40 mg was injected intravenously in P1 and P2 groups,while the equal volume of normal saline was given in group C.An increment of parecoxib sodium 40 mg was given every 12 h for 6 times after surgery in group P2.General anesthesia combined with epidural anesthesia was used during surgery and patient-controlled epidural analgesia was used for postoperative analgesia in the three groups.Morphine was used as rescue analgesic to maintain VAS score ≤ 3.The consumption of morphine within 72 h after operation,development of adverse effects and development and duration of pain (VAS score ＞ 3) within 6 months after operation were recorded.The blood coagulation was measured at 72 h after operation.Results Morphine was not used within 72 h after operation in P2 group.The abnormality of blood coagulation at 72 h after operation was not observed in the three groups.Compared with group C,no significant changes were found in the incidence and duration of pain within 6 months after operation in P1 group (P ＞ 0.05),the incidence of pain was significantly decreased and duration of pain was shortened within 6 months after operation in P2 group,and the incidence of nausea,vomiting and pruritus was decreased in P1 and P2 groups (P ＜ 0.05 or 0.01).The incidence of nausea,vomiting and pruritus was significantly lower in P2 group than in P1 group (P ＜ 0.01).Conclusion Continuous application of parecoxib sodium for 72 h can decrease the development of post-thoracotomy pain syndrome without increasing the incidence of adverse effects.