Korean J Perinatol.  2008 Jun;19(2):142-149.

Computerized analysis of fetal heart rate in normal term pregnant women categorized by birth weight and fetal sex

• Baek MH
• Chun SH
• Lee SJ
• Kim YJ
• Choi JH
• Park MI
• Chung SN
• Choi WY
• Cha KJ

Abstract

PURPOSE
The objective of this study is to compare the difference of each fetal heart rate (FHR) variables between each categorized group according to birth weight and fetal sex using computerized analysis system of fetal heart rate.
METHODS
Non stress test (NST) of four hundred normal pregnant women were grouped based on birth weight to 4 groups, <2,500 g, 2,500~<3000 g, 3,000~<3,500 g and above 3,500 g. Fifty male and 50 female babies entered to each group. So, 100 normal pregnant women entered for the study in each group. For collection and analysis of data and values of each variables, our own FHR interpretation sofware, HYFM-II (Windows version 1.0) was used. RESULT: From the comparison between each group classified by each criteria, there were no specific significant differences in baseline FHR, FHR variability (amplitude & mean minute range), signal loss rate, number of fetal movements, the number of FHR acceleration & the number of FHR deceleration those were obtained by our computerized FHR analysis system.
CONCLUSION
We confirm that there were no specific differences in each FHR varibles according to birth weight and fetal sex at least in term normal pregnancy.

Keyword

Non stress test; Computerized analysis of FHR; Birth weight; Fetal sex

MeSH Terms

Acceleration
Birth Weight
Deceleration
Exercise Test
Female
Fetal Heart
Fetal Movement
Heart Rate, Fetal
Humans
Male
Parturition
Pregnancy
Pregnant Women