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不同剂量氯胺酮对喷他佐辛硬膜外镇痛效应的影响 被引量:4

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摘要 目的比较不同剂量的氯胺酮配伍0.18%喷他佐辛和0.2%左旋布比卡因硬膜外自控镇痛(PCEA)对腹式子宫全切除手术后患者的镇痛效应和不良反应。方法择期腹式全子宫切除手术患者80例(ASAⅠ~Ⅱ级),随机分成4组(PK0组、PK1组、PK2组和PK3组),每组20例。PK0组:0.18%喷他佐辛+0.2%左旋布比卡因,PK1组:0.04%氯胺酮+0.18%喷他佐辛+0.2%左旋布比卡因,PK2组:0.06%氯胺酮+0.18%喷他佐辛+0.2%左旋布比卡因,PK3组:0.08%氯胺酮+0.18%喷他佐辛+0.2%左旋布比卡因。PCEA采用LCP模式,其设置为负荷剂量5mL,背景剂量1mL/h,追加剂量1mL/次,锁定时间15min,镇痛24h。分别记录开启PCA泵后各时段PCA泵的按压次数(D1)和实际有效次数(D2)及伤口静息疼痛和动态疼痛的VAS评分、Ramesay镇静评分、改良Bromage分级,记录患者可能发生的不良反应。结果 4组患者喷他佐辛和左旋布比卡因用药量PK0组>PK1组>PK2组≈PK3组,术后各时点静息镇痛效果良好,随着氯胺酮的剂量增大而静息疼痛、动态疼痛VAS评分降低,即PK0组>PK1组>PK2组≈PK3组;在整个PCA期间恶心发生分别为PK0组4例(20%),PK1组2例(10%),PK2组1例(5%),PK3组1例(5%),头晕PK3组2例(10%),所有患者均未出现呕吐、瘙痒、呼吸抑制等不良反应。结论小剂量氯胺酮配伍0.18%喷他佐辛和0.2%左旋布比卡因行PCEA,镇痛效果增强,镇痛时间延长,不良反应少,其中氯胺酮的配伍剂量以0.06%(0.6mg/mL)为最佳,值得在临床选用。
出处 《广东医学》 CAS CSCD 北大核心 2010年第10期1240-1243,共4页 Guangdong Medical Journal
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参考文献12

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