Morgan M, Symonds E M
Department of Obstetrics and Gynaecology, Queen's Medical Centre, Nottingham, U.K.
Eur J Obstet Gynecol Reprod Biol. 1991 Dec;42 Suppl:S9-13.
A total of 92 fetuses have been studied during labour using a technique of real-time fetal electrocardiography. This study showed differences in the PR and QRS intervals between male and female infants and also confirmed previous findings of a positive correlation between QRS width and fetal birthweight. The importance of taking natural biological factors into account in the interpretation of the time constants of the FECG is demonstrated.
共有92例胎儿在分娩过程中采用实时胎儿心电图技术进行了研究。这项研究显示了男婴和女婴在PR间期和QRS间期上的差异，同时也证实了之前关于QRS波宽度与胎儿出生体重呈正相关的研究结果。这表明在解释胎儿心电图的时间常数时考虑自然生物因素的重要性。
