Symphysis-fundus height and weight gain pattern in Japanese women with twin pregnancies.
OBJECTIVE
To determine the normogram for symphysis-fundus height and weight gain pattern in Japanese women with twin pregnancies and to examine whether fundus height and weight gain pattern are altered in women who give birth to twin infants complicated by fetal growth restriction (FGR).


METHODS
A retrospective review of the medical records of 186 twin gestations that had been followed at our institution together with 229 singleton pregnancies as a control. We examined maternal symphysis-fundus height, body weight gain and increase in body mass index (BMI) according to gestational age and compared them between women with and without FGR.


RESULTS
As compared to women with singleton pregnancies, those with twins exhibited larger fundus height, larger weight gain and larger increase in BMI, all of which were observed from as early as 16-18 weeks of gestation until delivery. Mothers of twins with at least one FGR infant showed smaller fundus height, smaller weight gain and smaller increase in BMI as compared to those without.


CONCLUSIONS
We constructed the normogram for symphysis-fundus height and weight gain pattern in Japanese twin gestations and determined the characteristic change in these parameters in FGR in women with twins. These results may be of use in identifying mothers of twins with FGR.
Ayustawati
Department of Obstetrics and Gynecology, Jichi Medical School, Tochigi, Japan.
Matsubara
Shigeki
S
Minakami
Hisanori
H
Ohkuchi
Akihide
A
Izumi
Akio
A
Sato
Ikuo
I
D000328:Adult; D000886:Anthropometry; D015992:Body Mass Index; D015331:Cohort Studies; D005314:Embryonic and Fetal Development / Q000502:physiology*; D005260:Female; D006801:Humans; D007564:Japan; D011237:Predictive Value of Tests; D011247:Pregnancy; D011272:Pregnancy, Multiple; D011295:Prenatal Care / Q000379:methods; D011631:Pubic Symphysis / Q000033:anatomy & histology; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D014427:Twins; D014599:Uterus / Q000033:anatomy & histology; D015430:Weight Gain