Estudio Doppler de las arterias uterinas: predicción de complicaciones perinatales

Abstract

AimTo assess the use of midtrimester uterine artery Doppler studies in the prediction of adverse pregnancy outcome MethodsThis is a prospective study involving 313 pregnancies who were screened with color and pulsed Doppler in both uterine arteries at 19-21 weeks. Pregnancies with abnormal uterine artery waveforms (notching) were rescanned at 22-25 weeks. The incidence of preeclampsia, intrauterine growth restriction (IUGR), stillbirth and neonatal death were recorded as adverse pregnancy outcome its relationship with abnormal Doppler findings was assessed ResultsAt 20 weeks there were 92 pregnancies with unilateral (18%) or bilateral (11%) protodiastolic notching. From 15 pregnancies with an adverse outcome 4 (27%) had bilateral notching and 11 had normal waveforms. At 22-25 weeks bilateral notching persisted in 13 (37%) of the 35 pregnancies including 2 with adverse outcome. An adverse outcome was also observed in 2 of the pregnancies with unilateral notching (a stillbirth and a preeclampsia). The risk of an adverse outcome when bilateral notching is found at 20 weeks is 14% (4/28), increasing to 22% when it persists to 24 weeks ConclusionDoppler studies in the uterine artery have a limited role in the prediction of an adverse pregnancy outcome