Doppler velocimetry of the uterine arteries in nulliparous women

Predictive Value of Uterine Artery Velocimetry at Midgestation in Low- and High-Risk Populations: A New Perspective

“…It has to be stressed here that the PPV is highly dependent upon the prevalence of the considered complications, thus also explaining the lower PPV obtained in a low-risk population when compared to a high-risk one. In the present series, for example, only 3 low-risk pregnant women developed preeclampsia, with a prevalence of 0.5%, which is lower than that described in other reports (ranging from 2 to 9%) [17][18][19][20].…”

“…On the contrary, the PPV is low, ranging from 3 to 24%. These values were also lower when compared to other data from the literature concerning the same issues [17][18][19][20]. It has to be stressed here that the PPV is highly dependent upon the prevalence of the considered complications, thus also explaining the lower PPV obtained in a low-risk population when compared to a high-risk one.…”

“…Even if there is general agreement about the favorable results in high-risk populations [4,6,7,16], the results in unselected groups have been variable because of differences in study groups, methodology and definition of outcome [4,7,8,16]. Most of the authors [17,18], but not all [19], concluded that the association between abnormal uterine artery Doppler velocimetry and the subsequent development of pregnancy complications in an unselected population is rather weak, thus not justifying the use of this technique as general screening test in pregnancy. One of the main explanations for the different results could be the use of different Doppler techniques.…”

Early, Incomplete, or Preclinical Autoimmune Systemic Rheumatic Diseases and Pregnancy Outcome

“…After enrolment, cases and controls were followed up with monthly obstetric, clinical, and ultrasonographic evaluations. The mean uterine artery pulsatility index (PI) in the first and second trimester was evaluated according to standard methods (18). Pulsatility indices of uterine or umbilical arteries were considered abnormal when the values were higher than the 95 th percentile of reference curves (18 antibodies) were inserted in the logistic model as initial explanatory variables and persistence of rheumatic disorders during follow up as outcome.…”

The value of uterine artery Doppler flow velocity in the prediction of uncomplicated pregnancies

“…Studies in which medication was administered to prevent intrauterine growth restriction (IUGR) or pre-eclampsia were excluded. [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. Test properties of the uterine artery Doppler to select patients with complications due to placental insufficiency were calculated.…”