1988
DOI: 10.1159/000293767
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Obstetrical Characteristics of a Loss of End-Diastolic Velocities in the Fetal Aorta and/or Umbilical Artery Using Doppler Ultrasound

Abstract: In 30 of 137 high-risk pregnancies we observed absent end-diastolic velocities indicating a high downstream impedance, which could be proved by histomorphological findings of the placenta. On the average the loss of end-diastolic velocities occurred 2–3 days before suspicious and nearly 8 days before pathological cardiotocographic findings. The perinatal mortality was high when absent velocities had been observed before the 32nd week, a cesarean section was obligatory in all but 1 case. All fetuses were growth… Show more

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Cited by 56 publications
(17 citation statements)
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References 17 publications
(19 reference statements)
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“…O estudo anatomopatológico de casos que apresentam diástole zero ou reversa demonstra que raramente as placentas são normais. Arabin et al 12 encontraram sinais FRANCISCO RPV ET AL.…”
Section: Fisiopatologia Da Lesão Placentáriaunclassified
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“…O estudo anatomopatológico de casos que apresentam diástole zero ou reversa demonstra que raramente as placentas são normais. Arabin et al 12 encontraram sinais FRANCISCO RPV ET AL.…”
Section: Fisiopatologia Da Lesão Placentáriaunclassified
“…Em casos de DZ ou DR, a presença de insuficiência placentária, com alteração na nutrição fetal, é confirmada pelos trabalhos disponíveis na literatura médica, que constatam alta porcentagem de RN classificados como PIG 3,11,12,24 (ver peso no nascimento).…”
Section: Restrição Do Crescimento Intra-uterinounclassified
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“…On average, the time interval between the onset of abnormal umbilical arterial Doppler results and the onset of late fetal heart rate decelerations is about 2 weeks. [5][6][7] Hence the most useful diagnostic criteria are umbilical artery PI and cerebro-placental ratio (CPR). 8 Normal venous flow suggests continuing fetal compensation, whereas abnormal flow indicates the breakdown of hemodynamic compensatory mechanisms.…”
Section: Introductionmentioning
confidence: 99%