[Association of Doppler flowmetry with perinatal outcome in patients with oligohydramnios].

Background: Oligohydramnios is sometimes associated with poor perinatal outcome. Our aim was to determine the association of Doppler flowmetry with perinatal outcome in patients with oligohydramnios.

Methods: We carried out a prospective cross-sectional study that included 130 patients with pregnancy between 30 to 41 weeks of gestation; we compared the measurement of the resistance index in the umbilical artery by Doppler flowmetry and the measurement of amniotic fluid in patients with oligohydramnios. A follow-up of patients after birth was made, recording the Apgar score and whether they required special attention. The data were analyzed using descriptive statistics and we calculated the sensitivity, specificity, accuracy, and predictive values of the tests.

Results: Sensitivity, specificity and accuracy were obtained for oligohydramnios associated to perinatal death and for five-minute Apgar, with results of 100, 0, 50 % and 0, 0, 0 % respectively. The resistance index of umbilical artery related to perinatal death had sensitivity, specificity and accuracy of 100, 96 and 98 %, while in the Apgar were 0, 95 and 47.5 %, respectively.

Conclusions: Doppler flowmetry of the umbilical artery showed a higher sensitivity, specificity and accuracy to diagnose perinatal death than the measurement of oligohydramnios and the Apgar score.