The effects of absent or reversed end-diastolic umbilical artery Doppler flow velocity.
Abnormal umbilical artery flow with absent or reversed end-diastolic velocity (AREDV) during pregnancy is a strong indication of placental insufficiency. When AREDV occurs prenatally, a close follow-up or expeditious delivery should be contemplated. AREDV in the umbilical artery is associated with intraventricular hemorrhage, bronchopulmonary dysplasia, and perinatal mortality. It may be associated with respiratory distress syndrome, necrotizing enterocolitis, and long-term neurodevelopmental impairment. Available data suggest that women with high-risk pregnancies, such as preeclampsia, gestational hypertension and intrauterine growth restriction, should be evaluated with umbilical artery Doppler velocimetry to reduce the possibility of perinatal mortality and morbidity.
Wang
Kuo-Gon
KG
Department of Obstetrics and Gynecology, Mackay Memorial Hospital, and Taipei Medical University, Taipei, Taiwan.
Chen
Chen-Yu
CY
Chen
Yi-Yung
YY
D001783:Blood Flow Velocity; D005260:Female; D005317:Fetal Growth Retardation / Q000000981:diagnostic imaging*; D006801:Humans; D010927:Placental Insufficiency / Q000000981:diagnostic imaging*; D011247:Pregnancy; D011249:Pregnancy Complications, Cardiovascular / Q000000981:diagnostic imaging*; D018608:Ultrasonography, Doppler; D016216:Ultrasonography, Prenatal; D014469:Umbilical Arteries / Q000000981:diagnostic imaging* / Q000502:physiology