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首页> 外文期刊>Pediatrics: Official Publication of the American Academy of Pediatrics >Decreased arousals in infants who sleep with the face covered by bedclothes.
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Decreased arousals in infants who sleep with the face covered by bedclothes.

机译：睡眠时被床单盖着的婴儿的唤醒感降低。

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OBJECTIVE: The risk of becoming a victim of sudden infant death syndrome is increased in infants who sleep with their face under bedding items. The present study was designed to evaluate auditory arousal thresholds of infants who sleep with their face covered by bedclothes. METHODS: Twenty healthy infants with a median age of 11.5 weeks (range: 4-22 weeks) were recorded polygraphically for 1 night. Although they slept in their usual supine position, a bed sheet was placed over their face for 60 minutes. Fifteen of the 20 infants were chosen at random and were exposed to white noises of increasing intensities to determine their auditory arousal thresholds. All infants were challenged with the face covered and with the face free during both rapid eye movement (REM) and non-REM (NREM) sleep. Seven infants were first challenged with the face covered, and 8 were challenged with the face free. The following variables were recorded simultaneously: electroencephalogram, breathing and heart rates, and rectal and pericephalic temperatures. In 5 infants who were not exposed to the auditory challenges, end tidal CO2 was recorded for 30 minutes while sleeping with the face covered. RESULTS: During REM sleep, arousals occurred for significantly more intense auditory stimuli when the infant's face was covered than when free. No significant difference was seen in NREM sleep. Compared with the face-free periods, the face-covered sleep periods were characterized by greater rectal and pericephalic temperatures, a greater density of body movements, and a decrease in NREM sleep. Respiratory frequency was increased during the face-covered periods in both REM and NREM sleep. No differences were seen in the frequency or duration of apnea. There was a tendency for heart rate to increase during both sleep stages when the face was covered, compared with the face-free periods, but the changes were not statistically significant. A positive correlation was found between pericephalic temperatures and arousal thresholds (r = 0.60) during REM sleep. End tidal CO2 values increased when the face was covered, reaching a maximum value during the first 5 minutes of the experiment. No fall in oxygen saturation was seen. CONCLUSIONS: Covering the infant's face with a bed sheet was associated with a significant increase in auditory arousal threshold. The finding could be related to an elevation in temperatures within the infant's microenvironment.
机译：目的：面对被褥睡觉的婴儿，患婴儿猝死综合症的风险增加。本研究旨在评估脸被被褥覆盖的婴儿入睡时的听觉唤醒阈值。方法：二十名健康婴儿的中位年龄为11.5周（范围：4-22周），经多面体记录1夜。尽管他们以平躺的姿势睡觉，但将一张床单放在他们的脸上60分钟。随机选择20名婴儿中的15名婴儿，将其暴露于强度增加的白噪声中，以确定其听觉唤醒阈值。在快速眼动（REM）和非REM（NREM）睡眠期间，所有婴儿都被遮盖了脸并且没有脸。首先挑战了7名婴儿，并盖好了脸，然后挑战了8名婴儿。同时记录以下变量：脑电图，呼吸和心率以及直肠和脑周温度。在5名未暴露于听觉挑战的婴儿中，在遮盖面部的睡眠中记录了30分钟的潮气末CO2。结果：在REM睡眠期间，当婴儿的脸被遮盖时，与自由时相比，唤醒引起的听觉刺激明显增强。 NREM睡眠无明显差异。与无脸期相比，脸部覆盖的睡眠期的特征是较高的直肠和脑周温度，更大的身体运动密度以及NREM睡眠的减少。在REM和NREM睡眠中，在面部覆盖期间呼吸频率增加。呼吸暂停的频率或持续时间未见差异。与无脸期间相比，当脸被遮盖时，在两个睡眠阶段心率都有增加的趋势，但变化无统计学意义。在REM睡眠期间，脑周围温度与唤醒阈值（r = 0.60）之间发现正相关。当遮盖脸部时，潮气末的CO2值会增加，在实验的前5分钟达到最大值。氧饱和度未见下降。结论：用床单覆盖婴儿的面部与听觉唤醒阈值的显着增加有关。这一发现可能与婴儿微环境内温度的升高有关。

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