Macaulay J H, Randall N R, Bond K, Steer P J
Academic Department of Obstetrics and Gynecology, Charing Cross and Westminster Medical School, London, United Kingdom.
Obstet Gynecol. 1992 Mar;79(3):469-74. doi: 10.1097/00006250-199203000-00029.
The human fetus is normally warmer than its mother. The principal route of fetal heat dissipation is through the placental circulation. We developed a technique that is noninvasive to the fetus to record the fetal skin and maternal uterine wall temperatures, from which we derived the temperature difference. We have established a range of normal values (mean temperature difference 0.24C) and present some preliminary data. The results show a correlation between changing temperature and baseline fetal heart rate (r = 0.628, P less than .001) and the influence of contractions and epidural analgesia on these measurements. Measurement of the fetal-maternal temperature difference during labor may help detect abnormal umbilical-placental blood flow, resulting in fetal distress, and may help distinguish sinister from iatrogenic fetal tachycardias. Our technique provides the first simple means of recording this basic fetal variable.
正常情况下，人类胎儿比其母亲的体温更高。胎儿散热的主要途径是通过胎盘循环。我们开发了一种对胎儿无创的技术，用于记录胎儿皮肤和母体子宫壁的温度，并由此得出温差。我们已经确定了一系列正常值（平均温差0.24摄氏度）并展示了一些初步数据。结果显示，温度变化与胎儿基线心率之间存在相关性（r = 0.628，P小于0.001），以及宫缩和硬膜外镇痛对这些测量值的影响。分娩期间测量胎儿与母体的温差可能有助于检测导致胎儿窘迫的异常脐-胎盘血流，并有助于区分凶险性与医源性胎儿心动过速。我们的技术提供了记录这一基本胎儿变量的首个简单方法。
