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- Title
Can fetal adrenal artery Doppler velocimetry predict delivery date in pregnant women with spontaneous preterm birth?
- Authors
Costa Carvalho, Francisco Herlânio; Lemos, Aline Pinto; De Lucena Feitosa, Francisco Edson; Feitosa, Helvécio Neves; Carvalho Augusto, Lucas Costa; Salani Mota, Rosa Maria; Júnior, Edward Araujo; Carvalho, Francisco Herlânio Costa; Feitosa, Francisco Edson De Lucena; Augusto, Lucas Costa Carvalho; Mota, Rosa Maria Salani; Araujo Júnior, Edward
- Abstract
<bold>Aim: </bold>To assess the accuracy of delivery date predictions made using fetal adrenal artery Doppler velocimetry in pregnant women with spontaneous preterm birth (PB) and to compare these predictions with cervical length (CL) measurements.Material and methods: A prospective study was performed with 51 pregnant women whose gestational lengths were between 24 and 36 weeks. The main outcome was the time between the Doppler velocimetry examination and delivery, categorized as delivery within 7 days or 7 days later after the examination. A receiver operating characteristics curve was performed to define the cutoffs among deliveries within 7 days for fetal adrenal artery Doppler velocimetry parameters and CL measurements.<bold>Results: </bold>The incidence of delivery within 7 days was 37.3%, with a statistically significant difference for the pulsatility index (PI; p=0.045) and resistance index (RI; p=0.030) of the fetal adrenal artery. The best cutoff values of PI and RI for predicting deliveries within 7 days were 1.65 and 0.78, respectively. The sensitivity and specificity of PI, RI, and CL (20 mm) were 73.7% (95% CI: 51.9-95.5) and 56.3% (95% CI: 38.1-74.4); 68.4% (95% CI: 45.4-91.4) and 62.5% (95% CI: 44.8-80.2); and 76.5% (95% CI: 54.0-99.0) and 78.1% (95%: CI 71.1-97.7), respectively.<bold>Conclusion: </bold>Fetal adrenal artery Doppler velocimetry can predict delivery within 7 days among pregnant women in cases of spontaneous PB and this prediction is similar to the predictions made using CL measurements.
- Subjects
DOPPLER velocimetry; VELOCIMETRY; PREMATURE labor; GESTATIONAL age; PREGNANT women; DOPPLER ultrasonography; ADRENAL glands; ARTERIES; PREMATURE infants; LONGITUDINAL method; RESEARCH evaluation; RHEOLOGY
- Publication
Medical Ultrasonography, 2017, Vol 19, Issue 3, p295
- ISSN
1844-4172
- Publication type
journal article
- DOI
10.11152/mu-981