O'Brien Emily A, Colaizy Tarah T, Brumbaugh Jane E, Cress Gretchen A, Johnson Karen J, Klein Jonathan M, Bell Edward F
a Physician Assistant Program, Midwestern University , Downers Grove , IL , USA.
b Department of Pediatrics , University of Iowa , Iowa City , IA , USA.
J Matern Fetal Neonatal Med. 2019 Aug;32(16):2763-2766. doi: 10.1080/14767058.2018.1446076. Epub 2018 Mar 7.
Hypothermia occurs frequently in the first minutes after birth in preterm infants. Hyperthermia also occurs, often as a consequence of efforts to provide thermal support. Both hypothermia and hyperthermia are potentially harmful. Our objective was to examine the distribution of admission temperatures of very low birth weight (VLBW) infants, the effect of gestational age on admission temperatures, and the time required for correction of low temperatures.
Admission axillary temperatures were retrieved from the medical records for all VLBW infants born in our hospital during a 5-year period. The temperatures were classified as severe (<35.0 °C), moderate (35.0-35.9 °C), or mild (36.0-36.4 °C) hypothermia, normothermia (36.5-37.4 °C), or hyperthermia (≥37.5 °C). The relationship between gestational age and admission temperature was examined. In addition, we analyzed the time required for normalization of low temperatures.
Overall, 12% of infants were severely hypothermic, 40% moderately hypothermic, 27% mildly hypothermic, 19% normothermic, and 2% hyperthermic. Gestational age was inversely related to hypothermia risk and to the time required for recovery to normothermia.
Admission hypothermia is common among VLBW infants and is affected by gestational age.
体温过低在早产儿出生后的最初几分钟内经常发生。体温过高也会出现，通常是提供热支持措施的结果。体温过低和体温过高都可能有害。我们的目的是研究极低出生体重（VLBW）婴儿入院时体温的分布情况、胎龄对入院时体温的影响以及纠正低温所需的时间。
从我院5年内出生的所有VLBW婴儿的病历中获取入院时的腋温。这些体温被分类为重度（<35.0°C）、中度（35.0 - 35.9°C）或轻度（36.0 - 36.4°C）低温、正常体温（36.5 - 37.4°C）或高温（≥37.5°C）。研究胎龄与入院时体温之间的关系。此外，我们分析了低温恢复正常所需的时间。
总体而言，12%的婴儿为重度低温，40%为中度低温，27%为轻度低温，19%为正常体温，2%为高温。胎龄与低温风险以及恢复到正常体温所需的时间呈负相关。
入院时体温过低在VLBW婴儿中很常见，并且受胎龄影响。
