Abstract：
Background: Recently, the International Liaison Committee on Resuscitation published a systematic review that concluded that routine suctioning of clear amniotic fluid in the delivery room might be associated with lower oxygen saturation (SpO2) and 10 min Apgar score. The aim of this study was to examine the effect of delivery room airway suctioning on the clinical appearance, including muscle tone and skin colour, of video-recorded term and preterm infants born through mainly clear amniotic fluid. Methods: This was a single-centre observational study using transcribed video recordings of neonatal stabilizations. All infants who received delivery room positive pressure ventilation (PPV) from August 2014 to November 2016 were included. The primary outcome was the effect of airway suctioning on muscle tone and skin colour (rated 0−2 according to the Apgar score), while the secondary outcome was the fraction of infants for whom airway suction preceded the initiation of PPV as a surrogate for “routine” airway suctioning. Results: Airway suctioning was performed in 159 out of 302 video recordings and stimulated a vigorous cry in 47 (29.6%) infants, resulting in improvements in muscle tone (p = 0.09) and skin colour (p < 0.001). In 43 (27.0%) infants, airway suctioning preceded the initiation of PPV. Conclusions: In this single-centre observational study, airway suctioning stimulated a vigorous cry with resulting improvements in muscle tone and skin colour. Airway suctioning was often performed prior to the initiation of PPV, indicating a practice of routine suctioning and guideline non-compliance.
摘要：
背景：最近，国际复苏联络委员会发表了一项系统评价,认为在产房常规吸取透明羊水可能与较低的氧饱和度(SpO2)和10minApgar评分有关.这项研究的目的是检查分娩室气道抽吸对临床表现的影响，包括肌肉张力和皮肤颜色，主要通过透明羊水出生的视频记录的足月和早产儿。
方法：这是一项单中心观察性研究，使用新生儿稳定的转录录像记录。纳入2014年8月至2016年11月接受分娩室正压通气（PPV）的所有婴儿。主要结果是气道抽吸对肌肉张力和皮肤颜色的影响（根据Apgar评分为0-2），而次要结局是在开始PPV之前进行气道抽吸作为“常规”气道抽吸替代的婴儿比例。
结果：302个视频记录中有159个进行了气道抽吸，并刺激了47个（29.6％）婴儿的剧烈哭泣，改善肌肉张力（p=0.09）和皮肤颜色（p<0.001）。在43名(27.0%)婴儿中，气道抽吸先于PPV的启动。
结论：在这项单中心观察性研究中，气道抽吸刺激了剧烈的哭泣，从而改善了肌肉张力和皮肤颜色。气道抽吸通常在PPV开始之前进行，表明常规抽吸的做法和不遵守准则的做法。
方法：这是一项单中心观察性研究，使用新生儿稳定的转录录像记录。纳入2014年8月至2016年11月接受分娩室正压通气（PPV）的所有婴儿。主要结果是气道抽吸对肌肉张力和皮肤颜色的影响（根据Apgar评分为0-2），而次要结局是在开始PPV之前进行气道抽吸作为“常规”气道抽吸替代的婴儿比例。
结果：302个视频记录中有159个进行了气道抽吸，并刺激了47个（29.6％）婴儿的剧烈哭泣，改善肌肉张力（p=0.09）和皮肤颜色（p<0.001）。在43名(27.0%)婴儿中，气道抽吸先于PPV的启动。
结论：在这项单中心观察性研究中，气道抽吸刺激了剧烈的哭泣，从而改善了肌肉张力和皮肤颜色。气道抽吸通常在PPV开始之前进行，表明常规抽吸的做法和不遵守准则的做法。
