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Doppler waveform patterns of the umbilical artery--screening test for high risk pregnancies

Mullick, S.; Kushtagi, P.; Swain, U.K.; Rao, K.; Muralidhar, B.G.

International Journal of Gynaecology and Obstetrics the Official Organ of the International Federation of Gynaecology and Obstetrics 40(2): 115-118

1993

ISSN/ISBN: 0020-7292
PMID: 8094679
DOI: 10.1016/0020-7292(93)90369-8
Document Number: 324561
Doppler assessment of umbilical artery waveforms using the peak systolic to end diastolic (S/D) ratio was used to determine if complications associated with impaired trophoblastic invasion of placental bed (i.e. pregnancy induced hypertension and intrauterine growth retardation) could be predicted. Values for S/D ratio of at least 4, 3.5 and 3 at 22-26, 30-32 and > or = 37 weeks gestation, respectively, were found to be better predictors of such complications. Pregnancy-induced hypertension could be predicted in 63% and growth retardation in 60% cases at 22-26 weeks of gestation.

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