Open AccessComparison of Menstrual History and Basal Body Temperature with Early Fetal Growth by Ultrasound in Diabetic Pregnancy
Author(s) -
HietaHeikurainen H.,
Teramo K.
Publication year - 1989
Publication title -
acta obstetricia et gynecologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.401
H-Index - 102
eISSN - 1600-0412
pISSN - 0001-6349
DOI - 10.3109/00016348909021021
Subject(s) - medicine , basal body temperature , pregnancy , crown rump length , fetus , ovulation , menstrual cycle , obstetrics , ultrasound , early pregnancy factor , gestation , gestational age , gynecology , endocrinology , hormone , biology , first trimester , radiology , genetics
The time of ovulation and conception of 24 insulin‐dependent (Type I) diabetic women was estimated by monitoring the basal body temperature (BBT). The mean (±SD) duration of the menstrual cycle was 28 (±2) days. Conception occurred, on the average, on the 18th day of the cycle. The fetal crown‐rump length was measured by ultrasound scan every 2 weeks between 6 and 14 weeks of pregnancy. When menstrual history was used for dating, there was an apparent early fetal growth delay by a mean of 4 days. When the dates were corrected by BBT, the fetal growth was identical with the standard mean crown‐rump length diagram by Robinson & Fleming. The findings of our study suggest that early fetal growth delay reported by Pedersen & Melsted‐Pedersen does not exist in diabetic pregnancy. The small fetuses observed could be explained by an error in the gestational age.