Influence du niveau d'humidité de l'air sur le sommeil du nouveau-né en incubateur

F. Telliez , V. Bach , S. Delanaud , H. M'Baye , A. Leke , A. Apédoh , M. Abdiche
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引用次数: 9

Abstract

Evaporative water losses am very important during the first weeks after birth m premature newborns. Humidity levels recommended in the literature are loca ted between 65 and 90% of relative humidity In most of the commercialised incubators, humidity is regulated in relative humidity although the evaporative water losses are inversely proportional to the gradient of water vapour partial pressure between the skin and the environment in our study, in order to pease physiological effects of humidity. we have used an active humidification system, controlling the water vapour partial pressure. By using our servocontrolled skm derivative heating device., the incubator air temperature level is spectfic to neonate is thermal needs ehowing to maintain body temperature constant independently of humidity level. With this system we have tested the effects of humidity level on sleep, heart rate and respiratory frequency m 9 neonates without inducing modifications of their thermal balance. A high humidity level of 4000 Pa (80% at 32%C) did not induce any disruption of sleep or cardiac and respiratory frequencies if thermal equilibrium of the neonate is maintained. This is observed when an inciease of the humidity level is accompanied by a decrease of incubator air temperature of 0.35 °C·kPa−1.

空气湿度水平对培养箱新生儿睡眠的影响
对于早产儿来说,在出生后的最初几周,蒸发水分的损失是非常重要的。文献中推荐的湿度水平位于相对湿度的65%至90%之间。在大多数商业化的恒温箱中,湿度被调节为相对湿度,尽管在我们的研究中,蒸发水分损失与皮肤和环境之间的水蒸气分压梯度成反比,以缓解湿度的生理影响。我们使用了主动加湿系统,控制水蒸气分压。采用我们的伺服控制skm导数加热装置。,培养箱的空气温度水平是特定于新生儿的热需求,如何保持体温恒定独立于湿度水平。我们用这个系统测试了湿度水平对9名新生儿睡眠、心率和呼吸频率的影响,而不会引起他们热平衡的改变。如果保持新生儿的热平衡,4000pa的高湿度水平(32%℃下80%)不会引起睡眠或心脏和呼吸频率的中断。当湿度水平的增加伴随着培养箱空气温度的降低0.35°C·kPa−1时,可以观察到这一点。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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