Biomaterial Database

Can umbilical and arcuate artery Doppler velocimetry predict fetal distress among prolonged pregnancies? 1991

I Forouzan, and A W Cohen

Department of Obstetrics and Gynecology, Hospital of the University of Pennsylvania, Philadelphia 19104.

We studied umbilical and arcuate artery Doppler velocity waveforms in 30 uncompromised prolonged pregnancies (greater than 41 weeks of gestation). Normal systolic/diastolic ratios in these vessels had a negative predictive value similar to other antepartum tests. The positive predictive value, though, was not high enough to consider Doppler studies of the umbilical and arcuate arteries as the only test to identify the group of prolonged pregnancies that have uteroplacental insufficiency. There is a possibility that the combination of Doppler velocimetry with other antepartum tests may improve our ability to predict poor outcome. Further study is needed.

UI	MeSH Term	Description	Entries
D007668	Kidney	Body organ that filters blood for the secretion of URINE and that regulates ion concentrations.	Kidneys
D007743	Labor, Obstetric	The repetitive uterine contraction during childbirth which is associated with the progressive dilation of the uterine cervix (CERVIX UTERI). Successful labor results in the expulsion of the FETUS and PLACENTA. Obstetric labor can be spontaneous or induced (LABOR, INDUCED).	Obstetric Labor
D007751	Labor, Induced	Artificially induced UTERINE CONTRACTION.	Induced Labor,Induction of Labor,Labor Induced,Labor Induction,Induced, Labor,Induction, Labor,Inductions, Labor,Labor Inductions
D011247	Pregnancy	The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH.	Gestation,Pregnancies
D011256	Pregnancy Outcome	Results of conception and ensuing pregnancy, including LIVE BIRTH; STILLBIRTH; or SPONTANEOUS ABORTION. The outcome may follow natural or artificial insemination or any of the various ASSISTED REPRODUCTIVE TECHNIQUES, such as EMBRYO TRANSFER or FERTILIZATION IN VITRO.	Outcome, Pregnancy,Outcomes, Pregnancy,Pregnancy Outcomes
D011273	Pregnancy, Prolonged	A term used to describe pregnancies that exceed the upper limit of a normal gestational period. In humans, a prolonged pregnancy is defined as one that extends beyond 42 weeks (294 days) after the first day of the last menstrual period (MENSTRUATION), or birth with gestational age of 41 weeks or more.	Prolonged Pregnancy,Pregnancies, Prolonged,Prolonged Pregnancies
D001724	Birth Weight	The mass or quantity of heaviness of an individual at BIRTH. It is expressed by units of pounds or kilograms.	Birthweight,Birth Weights,Birthweights,Weight, Birth,Weights, Birth
D002585	Cesarean Section	Extraction of the FETUS by means of abdominal HYSTEROTOMY.	Abdominal Delivery,Delivery, Abdominal,C-Section (OB),Caesarean Section,Postcesarean Section,Abdominal Deliveries,C Section (OB),C-Sections (OB),Caesarean Sections,Cesarean Sections,Deliveries, Abdominal
D005260	Female		Females
D005316	Fetal Distress	A nonreassuring fetal status (NRFS) indicating that the FETUS is compromised (American College of Obstetricians and Gynecologists 1988). It can be identified by sub-optimal values in FETAL HEART RATE; oxygenation of FETAL BLOOD; and other parameters.	Nonreassuring Fetal Status,Fetal Status, Nonreassuring