JAMA:第二产程神经轴镇痛方式对产妇自然分娩率的影响

2018-10-10 zhangfan MedSci原创

研究发现,对于需要接受神经轴镇痛的产妇,第二产程阶段积极的镇痛推送不会影响自然分娩率,同时可降低产妇及新生儿不良事件风险

近日研究人员比较了即时或延迟神经轴镇痛推送对产妇自然阴道分娩率以及产妇和新生儿不良事件率的影响。

孕37周以上,需神经轴镇痛的自然分娩产妇参与研究,宫颈完全扩张后,立即镇痛组(n=1200)随机接受神经轴镇痛推送,延迟镇痛组60min后接受神经轴镇痛推送。研究的主要终点是自然阴道分娩。次要终点包括第二产程总持续时间、镇痛推送持续时间、手术阴道分娩、剖宫产、产后出血、绒毛膜羊膜炎、子宫内膜炎、会阴撕裂(≥Ⅱ度),新生儿疾病死亡等其他9种不良后果的综合结果。

参与者平均年龄26.5岁,99.6%完成研究。立即推送组85.9%的产妇以及延迟组86.5%的产妇实现自然分娩。9个次要终点中5个终点事件无显著差异,包括新生儿疾病和会阴撕裂。立即镇痛组第二产程显著缩短(102.4 vs 134.2 min),但药物积极推送时间显著延长(83.7 vs 74.5 min),绒毛膜羊膜炎(6.7% vs 9.1%)以及产后出血(2.3% vs 4.0%)发生率降低。

研究发现,对于需要接受神经轴镇痛的产妇,第二产程阶段积极的镇痛推送不会影响自然分娩率,同时可降低产妇及新生儿不良事件风险。

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    2019-08-19 wfang558
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    2018-10-12 linlin2312
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    2018-10-12 zhaojie88