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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1989-6-2
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pubmed:abstractText |
The purpose of this study is to assess alterations in vascular resistance as measured by Doppler ultrasound in the postterm fetus. Forty-five postterm patients (greater than or equal to 287 days gestation by "good" dates) underwent Doppler velocimetry and calculation of systolic to diastolic (S/D) ratios of the umbilical, internal carotid, and uterine artery waveforms within 7 days of delivery. Patients were divided into two groups. Group 1 consisted of 26 patients with normal antepartum fetal surveillance that included reactive nonstress test and an amniotic fluid index (using the four-quadrant technique) equal to or greater than 5 cm. Group 2 consisted of 19 patients with antepartum compromise on the antepartum fetal surveillance tests. There was significantly greater (p less than .05) morbidity in group 2 compared to group 1 as judged by cesarean section for fetal distress (47% vs 15%), meconium at delivery (53% vs 4%), and 5-minute Apgar score less than 7 (30% vs 4%). There were no significant differences in the umbilical and uterine artery S/D ratios in the two groups, although patients in group 2 had significantly lower cerebral S/D ratios (3.6 +/- .5) compared to group 1 (4.4 +/- 0.4) (p less than .05). The ratio of cerebral to placental (umbilical) resistance in group 2 was significantly lower (1.1 +/- .3) compared to group 1 (1.8 +/- .3) (p less than .05). There was a low incidence of abnormal umbilical (greater than 3) and uterine (greater than 2.6) S/D ratios in both groups.(ABSTRACT TRUNCATED AT 250 WORDS)
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pubmed:commentsCorrections | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
0278-4297
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
8
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
187-91
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:2651701-Blood Flow Velocity,
pubmed-meshheading:2651701-Carotid Artery, Internal,
pubmed-meshheading:2651701-Female,
pubmed-meshheading:2651701-Fetal Monitoring,
pubmed-meshheading:2651701-Fetus,
pubmed-meshheading:2651701-Humans,
pubmed-meshheading:2651701-Infant, Newborn,
pubmed-meshheading:2651701-Pregnancy,
pubmed-meshheading:2651701-Pregnancy, Prolonged,
pubmed-meshheading:2651701-Pregnancy Complications,
pubmed-meshheading:2651701-Pregnancy Outcome,
pubmed-meshheading:2651701-Ultrasonography,
pubmed-meshheading:2651701-Umbilical Arteries,
pubmed-meshheading:2651701-Uterus,
pubmed-meshheading:2651701-Vascular Resistance
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pubmed:year |
1989
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pubmed:articleTitle |
Cerebral, umbilical, and uterine resistance using Doppler velocimetry in postterm pregnancy.
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pubmed:affiliation |
Department of Obstetrics and Gynecology, University of Southern California School of Medicine, Los Angeles.
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pubmed:publicationType |
Journal Article,
Comparative Study
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