过期妊娠孕妇脐动脉血流检测的意义
Zhejiang Journal of Preventive Medicine（2008）
Abstract
过期妊娠是指妊娠满42周尚未分娩者,其发生率约占妊娠总数的5%～12%.妊娠过期后,胎盘老化、功能储备降低,因此过期妊娠易致胎儿缺氧、酸中毒、新生儿窒息,增加围产儿预后不良的发生率[1].
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