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BMJ:孕妇睡姿可能与死产风险有关

来源:新华网 2011-06-17 10:35

《英国医学杂志》日前刊登的一份研究报告说,孕妇的睡姿也许与死产风险有关,调查显示习惯左侧卧的孕妇死产风险相对较低。不过研究人员表示,对这种现象背后的原因还有待深入研究,不能就此建议所有孕妇都采取左侧卧的睡姿。

新西兰奥克兰大学等机构的研究人员调查了155名死产孕妇的睡眠特征,并与310名正常分娩女性的睡眠特征进行对比。分析显示,习惯右侧卧或仰卧的孕妇死产几率为千分之四;而习惯左侧卧的孕妇死产几率相对较低,为千分之二。

研究人员认为,这可能是因为左侧卧更有利于为胎儿供血,而右侧卧或仰卧可能会使胎儿得到的供血量相对略少。领导该研究的托马西纳·斯泰西表示,现在仅发现了孕妇睡姿与死产风险可能的关联,对其原因还有待深入研究,“这项研究是进一步研究的起点,现在就建议所有孕妇都采取左侧卧睡姿还为时过早”。

《英国医学杂志》为此配发了伦敦大学国王学院妇产科专家露西·查普尔等人的一篇评论文章。文章认为,孕妇睡姿与死产风险之间的联系如能得到进一步研究确认,对减少死产风险有重要意义。(生物谷Bioon.com)

生物谷推荐原文出处:

British Medical Journal   DOI:10.1136/bmj.d3659

Should pregnant women sleep on their left?

Lucy C Chappel, Gordon C S Smith

The United Kingdom has one of the highest rates of stillbirth in the developed world.  More than 4000 infants were stillborn in the UK in 2009 (out of about three million worldwide), and 1200 of these stillbirths occurred at or after 37 weeks’ gestational age.In high income countries, there are 10 times more stillbirths than deaths from sudden infant death syndrome—the subject of a major campaign.  Stillbirth affects four times more babies than Down’s syndrome. A sophisticated screening programme is recommended and widely offered for Down’s syndrome, yet screening for stillbirth in the general population is confined to measurement of the external size of the uterus with a tape measure at each visit, according to the current National Institute for Health and Clinical Excellence Antenatal Care guideline.  Any simple intervention that reduces the risk of stillbirth would be extremely welcome. Could the linked study (doi: 10.1136/bmj.d3403 ), in which Stacey and colleagues found an association between maternal sleep position and risk of stillbirth, constitute the basis for a “not back to sleep” campaign for pregnant women?

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