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  • Title: Umbilical artery velocimetry in diabetes and pregnancy.
    Author: Bracero L, Schulman H, Fleischer A, Farmakides G, Rochelson B.
    Journal: Obstet Gynecol; 1986 Nov; 68(5):654-8. PubMed ID: 3763078.
    Abstract:
    Doppler studies of umbilical artery velocity waveforms were performed during the third trimester of pregnancy in 43 diabetic women (18 class A and 25 insulin dependent). A mean serum glucose value of 120 mg% or more was selected to indicate poor glucose control. Systolic to diastolic ratios of umbilical artery velocity waveforms were calculated to determine the degree of placental vascular resistance. A systolic to diastolic ratio of 3 or more was selected as the cut-off value for determining placental vascular disease. A significant positive correlation between systolic to diastolic ratios and serum glucose level (r = 0.52, P less than .001) was found. Elevated systolic to diastolic ratio was associated with increased number of stillbirths and neonatal morbidity. This study suggests that the risk of adverse outcome in diabetic pregnant women correlates with umbilical artery velocity waveforms.
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