目的 比较不同浓度罗哌卡因横纹肌阻滞应用于剖宫产术后镇痛的临床效果。方法 选取2015年3月—2016年3月于我院剖宫产的孕妇300例,随机分为A组、B组、C组,每组100例,A组产妇给予质量浓度为1.5 g/L的罗哌卡因1.5 mg/kg,B组产妇给予质量浓度为2 g/L的罗哌卡因1.5 mg/kg,C组产妇给予质量浓度为2.5 g/L的罗哌卡因1.5 mg/kg,同时给予所有产妇镇痛泵辅助镇痛。记录观察所有产妇术后6 h、12 h、24 h、36 h、48 h的疼痛视觉模拟评分(VAS)、镇痛泵按压次数、产妇对镇痛效果的满意程度以及腹横肌平面阻滞(TAP)不良反应发生情况。结果 B、C组产妇的VAS评分均低于A组产妇(P＜0.05),24 h后C组产妇的VAS评分低于B组产妇(P＜0.05);与B、C组产妇相比,A组产妇的镇痛泵按压次数更多,镇痛效果满意度较低(P＜0.05),同时B组产妇的镇痛泵按压次数多于C组产妇(P＜0.05);3组产妇均未出现术后不良反应。结论 使用质量浓度为2.5 g/L的罗哌卡因横纹肌阻滞进行剖宫产术后镇痛,效果显著、安全性较高,临床中可推广使用。

Objective To compare the clinical effects of different concentrations of ropivacaine for postoperative analgesia after cesarean section. Methods 300 cases of pregnant women undergoing cesarean section in our hospital from March 2015 to March 2016 were selected and were randomly divided into group A, group B and group C with 100 cases in each group. The patients in group A were given 0.15% ropivacaine 1.5 mg/kg, 0.20% ropivacaine 1.5 mg/kg in group B and 0.25% ropivacaine 1.5 mg/kg in group C, and at the same time all the pregnant women were given analgesic pump assisting analgesia. The pain visual analogue scales (VAS) of the pregnant women were recorded at 6 hours, 12 hours, 24 hours and 36 hours after cesarean section and the number of times of analgesia pressing pump were also recorded. The satisfaction degree of analgesic effect and the TAP occurrence of adverse reactions of the patients were also recorded. Results The VAS scores of group B and group C were lower than that of group A(P<0.05). 24 hours after cesarean section, the VAS score of group C was lower than that of group B (P<0.05). Compared with group B and C, the number of times of analgesia pressing pump in group A were more but the analgesic effect of satisfaction was lower (P<0.05), and at the same time the number of times of analgesia pressing pump in group B were more than those in group C (P<0.05). No adverse reactions were found in the three groups. Conclusion The treatment of using of 0.25% of ropivacaine for muscle block for postoperative analgesia after cesarean section is effective and safe, which may be widely used in clinical practice.

目的 研究右旋美托咪啶联合低浓度罗哌卡因腹横肌膜神经阻滞在老年患者阴式子宫切除术中应用的有效性及安全性。方法 选择择期行阴式子宫切除术患者40例(ASA Ⅰ～Ⅱ级),随机分成两组,选择硬腰联合麻醉下手术,麻醉平面固定后以超声引导给予患者双侧腹横肌膜神经阻滞,Ⅰ组患者选用0.5 μg/kg右旋美托咪啶+0.2%罗哌卡因,每侧20 mL,Ⅱ组以相同方法给予同量生理盐水。记录麻醉前(T₀)、麻醉平面确定后(T₁)、手术开始(T₂)、牵拉子宫(T₃)、术毕(T₄)患者的HR、MAP、SpO₂及NTI评分;评价并记录牵拉反应、术后认知功能障碍及谵妄的发生及患者舒适度及满意度。结果 两组患者一般情况无显著性差异(P>0.05);与I组相比,Ⅱ组HR在T₃时刻有显著性降低,差异有统计学意义(P<0.05),牵拉反应评价Ⅰ组评为优的患者个数明显多于Ⅱ组,差异有统计学意义(P<0.05);Ⅰ组舒适度及满意度评定为优的患者个数明显多于Ⅱ组,差异有统计学意义(P<0.05)。结论 右旋美托咪啶联合低浓度罗哌卡因腹横肌膜神经阻滞在老年患者阴式子宫切除术中应用是安全有效的。

Objective To observe the effectiveness and safety of ultrasound-guided subcostal transverses abdominis plane block with dexmedetomidine and low-concentration ropivacaine in elder vaginal hysterectomy. Methods Forty scheduled for vaginal hysterectomy (ASAⅠ～Ⅱ)were randomly assigned to 2 groups. All patients received spinal anesthesia, and ultrasound-guided subcostal transverses abdominis plane block then, Group Ⅰ: 0.5 μg/kg dexmedetomidine and 0.2% ropivacaine 20 mL for each side, and saline was used for Group Ⅱ. HR、MAP SpO₂ and NTI scale were recorded at the time points of pre-anesthesia(T₀), confirmation of anesthesia plane (T₁), beginning of surgery (T₂), pulling uterus (T₃), surgery end(T₄). Effect of dragging reaction, POCD and delirious and degree of comfort and degree of satisfaction of patients were valuated. Results The general condition did not differ between the two groups(P>0.05). Compared to Group Ⅰ, HR of Group Ⅱ at the time point of T3 was significant lower(P<0.05), number of patients with excellent dragging reaction of Group Ⅰ was significant higher (P<0.05)and patients of Group Ⅰ were more comfortable and satisfied than patinents of Group Ⅱ(P<0.05). Conclusion Ultrasound-guided subcostal transverses abdominis plane block with dexmedetomidine and low-concentration ropivacaine is effective and safe for vaginal hysterectomy in elderly female.