Abstract
The fetal temperature was monitorod continuously with a thermistor attached to the fetal scalp electrode. Simultaneously the maternal temperature was registered from a thermistor in the vagina 5 mm from the fetal probe. The difference between the fetal and maternal temperatures /δ T=Tf−Tm/ was obtained electronically and displayed on a recorder together with the intrauterine pressure and the fetal heart rate. More than 100 pressure and δT complexes were registrated from 10 patients. δT increased during contractions in all cases range 0.01–0.20°C. When the uterine activity was coordinated there was a statistically significant correlation between the intrauterine pressure and δT. The level of δT and also variation of it seems to be depending on the fetal condition.
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Peltonen, R., Huch, A., Huch, R. et al. Variations in the Thermal Differences Between Fetus and Mother During Contractions. Pediatr Res 9, 854 (1975). https://doi.org/10.1203/00006450-197511000-00014
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DOI: https://doi.org/10.1203/00006450-197511000-00014