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活跃期枕后位胎儿脊柱位置与分娩结局的关系 被引量:10

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摘要 目的探讨产程中活跃期枕后位胎儿脊柱位置与分娩结局的关系。方法本研究为回顾性研究。2008年5月1日至2011年10月31日在解放军第四五八医院分娩的足月单胎妊娠初产妇,其胎儿体重〈4000g,均为头先露、枕后位,共288例。在试产过程中宫口扩张4~5cm并已破膜时,征得孕妇及家属同意,行B超检查胎头及脊柱位置,并动态观察至分娩结束。采用独立样本t检验和x^2检验对分娩结局进行分析。结果288例中,胎儿脊前位202例,脊后位86例。脊前位组新生儿窒息发生率低于脊后位组[1.5%(3/202)与8.1%(7/86),x^2=7.97,P〈0.01]。脊后位组86例分娩中胎儿均为持续性枕后位,其中4例以枕后位经阴道分娩(包括产钳助产2例)。脊前位组和脊后位组产程中不同宫口扩张程度时因持续性枕后位行剖宫产终止妊娠的比例差异有统计学意义[宫口扩张6cm:4.0%(8/202)与36.0%(31/86),x^2=53.04;7cm:3.5%(7/202)与18.6%(16/86),x^2=18.81;8cm:1.5%(3/202)与10.5%(9/86),x^2=12.18;9cm:0.5%(1/202)与5.8%(5/86),x^2=8.63;开全:1.5%(3/202)与15.1%(13/86),x^2=21.36;开全1h:0.5%(1/202)与9.3%(8/86),x^2=15.45;P均〈0.01]。徒手旋转胎位均在宫口扩张5~6cm时进行。脊后位组2例徒手旋转胎位均未成功。脊前位组202例中,155例未行手旋转胎位而在继续试产中胎头转为枕前位经阴道分娩,12例经徒手旋转胎位至枕前位经阴道分娩,余35例均行剖宫产终止妊娠,其中23例手术指征为持续性枕后位。结论产程中活跃期枕后位胎儿脊柱位置与分娩结局有密切关系,活跃期及时了解枕后位胎儿脊柱位置,可帮助医师及时采取合理分娩方式,以降低母婴并发症,提高产科质量。
出处 《中华围产医学杂志》 CAS 北大核心 2013年第5期300-302,共3页 Chinese Journal of Perinatal Medicine
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