Rafferty Anthony R, Johnson Lucy, Maxfield Dominic, Dawson Jennifer A, Davis Peter G, Thio Marta
Newborn Research Centre, The Royal Women's Hospital, Melbourne, Vic., Australia.
Murdoch Childrens Research Institute, Melbourne, Vic., Australia.
Acta Paediatr. 2016 Jun;105(6):e247-51. doi: 10.1111/apa.13397.
We tested whether operators using manometers attached to self-inflating bags could accurately deliver set targeted peak inspiratory pressures (PIPs) compared to the Neopuff(™) T-piece resuscitator (TPR).
Participants provided positive pressure ventilation to a leak-free neonatal test lung at a rate of 60 inflations/min and a flow of 8 L/min. Participants used three manometers attached to self-inflating bags and a Neopuff(™) TPR to target PIPs of 20, 30 and 40 cmH2 O on each device. Mean PIPs delivered with each manometer were compared to the 'gold standard' Neopuff(™) TPR.
In total, 13 991 inflations delivered by 20 participants were analysed. At all target PIPs, the mean PIP delivered using the Mercury Medical manometer attached to a Laerdal self-inflating bag was significantly higher by 5 cmH2 O (p < 0.01) than the Neopuff(™) TPR. The PIP delivered using both the Ambu(™) and Parker Healthcare manometers attached to their respective devices was similar to that delivered by the Neopuff(™) TPR at all targeted PIPs.
Accurately targeted PIPs can be achieved when a manometer specifically designed for use on a self-inflating bag is used during manual ventilation. This may be useful in settings where access to a Neopuff(™) TPR or a gas flow source is limited.
我们测试了与Neopuff™ T型复苏器（TPR）相比，使用连接在自动充气式气囊上的压力计的操作人员能否准确输送设定的目标吸气峰压（PIP）。
参与者以每分钟60次充气、8升/分钟的流速向无泄漏的新生儿测试肺提供正压通气。参与者使用连接在自动充气式气囊上的三种压力计和一台Neopuff™ TPR，在每个设备上设定目标PIP为20、30和40厘米水柱。将每个压力计输送的平均PIP与“金标准”Neopuff™ TPR进行比较。
共分析了20名参与者进行的13991次充气。在所有目标PIP下，使用连接在Laerdal自动充气式气囊上的Mercury Medical压力计输送的平均PIP比Neopuff™ TPR显著高5厘米水柱（p < 0.01）。在所有目标PIP下，使用连接在各自设备上的Ambu™和Parker Healthcare压力计输送的PIP与Neopuff™ TPR输送的PIP相似。
在手动通气期间，当使用专门设计用于自动充气式气囊的压力计时，可以实现准确的目标PIP。这在获得Neopuff™ TPR或气体流量源受限的情况下可能有用。
