舒芬太尼用于蛛网膜下隙阻滞分娩镇痛量效关系的临床研究

目的 观察不同剂量舒芬太尼用于蛛网膜下隙阻滞分娩镇痛的效果及安全性.方法 100例健康单胎初产妇(ASA分级Ⅰ～Ⅱ级)按随机数字表法分为A、B、C、D、E五组,每组20例.五组行蛛网膜下隙阻滞时舒芬太尼剂量分别为3、4、5、6、7μg,同时均复合罗哌卡因3 mg.记录五组产妇蛛网膜下隙阻滞起效时间及维持时间;注药前及注药后5、15、30、60 rmin的视觉模拟评分(VAS)及生命体征;产程、分娩方式及不良反应;胎儿胎心率和新生儿1、5 min Apgar评分.结果 A组蛛网膜下隙阻滞起效时间长于B、C、D、E组;A、B组维持时间短于C、D、E组.五组注药后5、15、30、60minVAS均较注药前明显降低(P＜0.01);B、C、D、E组注药后5minVAS低于A组(P＜0.05),C、D、E组注药后60minVAS低于A、B组(P＜0.05).五组产妇生命体征、产程、分娩方式,胎儿胎心率和新生儿Apgar评分比较差异均无统计学意义(P＞0.05).D、E组皮肤瘙痒、恶心发生率D组为25%(5/20)和15%(3/20),E组为40%(8/20)和20%(4/20)]明显高于A、B、C组A组为5%(1/20)和0,B组为10%(2/20)和0,C组为10%(2/20)和0](P＜0.05).结论 4～6μg舒芬太尼复合3 mg罗哌卡因用于蛛网膜下隙阻滞分娩镇痛安全可靠,尤以5μg舒芬太尼复合3 mg罗哌卡因最理想.

Abstract：

Objective To observe the effect and safety of different doses of sufentanil plus subarachnoid block during labor. Methods One hundred parturients (single birth) were divided into 5groups by random digits table with 20 cases in each, which sufentanil 3,4,5,6,7 μ g in group A, B, C, D, E plus ropivacaine 3 mg were injected respectively into subarachnoid space. The onset and duration of subarachnoid analgesia were observed; visual analogue scale (VAS) were recorded respectively before injection and 5,15,30,60 min after injection; the vital sign,labor stage,labor type,adverse reactions of parturients,fetal heart rate (FHR) and the Apgar score at 1,5 min of neonate were recorded respectively.Results The onset of subarachnoid analgesia in group A was higher than that in group B,C, D,E;the duration of subarachnoid analgesia in group A,B was shorter than that in group C,D,E.VAS declined gradually 5,15,30,60 min after injection compared with before injection in 5 groups (P ＜ 0.01 );VAS in group B, C, D, E was lower than that in group A at 5 min after injection (P ＜ 0.05 ), and VAS in group C, D, E was lower than that in group A,B at 60 min after injection (P＜ 0.05). There was no significant difference in vital sign,labor stage,labor type,FHR and the Apgar score of neonate among 5 groups (P ＞0.05). The occurrence of itch of skin and nausea in group D,E 25%(5/20), 15%(3/20) in group D,and 40%(8/20),20%(4/20) in group E] was higher than that in group A, B, C 5%(1/20), 0 in group A, 10%(2/20), 0 in group B, 10% (2/20), 0 in group C] (P ＜ 0.05 ). Conclusion Subarachnoid block (sufentanil 4-6 μ g +ropivacaine 3 mg) can offer safety and efficacy of labor analgesia; sufentanil 5 μg is the best dose with subarachnoid block during labor at present.

Clinical study for dose-effect relationship of sufentanil with subarachnoid block during labor

Objective To observe the effect and safety of different doses of sufentanil plus subarachnoid block during labor. Methods One hundred parturients (single birth) were divided into 5groups by random digits table with 20 cases in each, which sufentanil 3,4,5,6,7 μ g in group A, B, C, D, E plus ropivacaine 3 mg were injected respectively into subarachnoid space. The onset and duration of subarachnoid analgesia were observed; visual analogue scale (VAS) were recorded respectively before injection and 5,15,30,60 min after injection; the vital sign,labor stage,labor type,adverse reactions of parturients,fetal heart rate (FHR) and the Apgar score at 1,5 min of neonate were recorded respectively.Results The onset of subarachnoid analgesia in group A was higher than that in group B,C, D,E;the duration of subarachnoid analgesia in group A,B was shorter than that in group C,D,E.VAS declined gradually 5,15,30,60 min after injection compared with before injection in 5 groups (P ＜ 0.01 );VAS in group B, C, D, E was lower than that in group A at 5 min after injection (P ＜ 0.05 ), and VAS in group C, D, E was lower than that in group A,B at 60 min after injection (P＜ 0.05). There was no significant difference in vital sign,labor stage,labor type,FHR and the Apgar score of neonate among 5 groups (P ＞0.05). The occurrence of itch of skin and nausea in group D,E 25%(5/20), 15%(3/20) in group D,and 40%(8/20),20%(4/20) in group E] was higher than that in group A, B, C 5%(1/20), 0 in group A, 10%(2/20), 0 in group B, 10% (2/20), 0 in group C] (P ＜ 0.05 ). Conclusion Subarachnoid block (sufentanil 4-6 μ g +ropivacaine 3 mg) can offer safety and efficacy of labor analgesia; sufentanil 5 μg is the best dose with subarachnoid block during labor at present.