Sep 15, 1977

Antenatal investigation of human fetal systolic time intervals

American Journal of Obstetrics and Gynecology
R N WolfsonR H Hertz

Abstract

A noninvasive method for measuring the antenatal human fetal systolic time intervals with the use of the transabdominal fetal electrocardiogram and Doppler cardiogram is described. Unique interactive computer routines were developed for rapid and accurate determination of the pre-ejection period (PEP), ventricular ejection time (VET), PEP/VET ratio, and fetal heart rate (FHR). Thirty normal patients were monitored between 20 and 40 weeks of gestation. A regression analysis of the fetal systolic time intervals and FHR against gestational age was done. PEP and PEP/VET ratio were significantly correlated to the gestational age, while VET and FHR were not.

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Mentioned in this Paper

Myocardial Contraction
Gestational Age
Doppler Studies
Fetal Heart
Ultrasonics (Sound)
Regression Analysis
Fetus
Electrocardiographic Recorders
Cardiogram
Pulse Rate

About this Paper

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