title: Combination of fetal Doppler velocimetric resistance values predict acidemic growth-restricted neonates.
abstract: OBJECTIVE
  This study was undertaken to determine the efficacy of combination Doppler velocimetric resistance values of the umbilical artery and ductus venosus in predicting growth-restricted neonates with acidemia.
  
  
  METHODS
  This retrospective case-control study included 61 gravidas complicated by intrauterine growth restriction with acidemia and 65 control pregnancies. The Doppler velocimetric resistance values obtained from the growth-restricted and control fetuses were in turn compared with the median values derived from another 192 normal pregnancies to adjust the biometric bias due to gestational age.
  
  
  RESULTS
  Based on the pulsatility index of the umbilical artery and pulsatility index for the vein of the ductus venosus, the areas under the receiver operating characteristic curves were 0.7992 and 0.6749, respectively, for predicting growth-restricted neonates with acidemia. With a combination of the pulsatility indices of the umbilical artery and the pulsatility indices for the vein of the ductus venosus, the predictive accuracy of the growth-restricted neonates with acidemia increased, with sensitivity of 0.79 and specificity of 0.79 and an area under the receiver operating characteristic curve of 0.8441.
  
  
  CONCLUSIONS
  Compared with single-vessel assessment, combining the pulsatility indices of the umbilical artery and the pulsatility indices for the vein of the ductus venosus provides the greatest accuracy in predicting growth-restricted neonates with acidemia.
authors.affiliation: Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taipei 112, Taiwan. jhhung@vghtpe.gov.tw
authors.forename: Jeng Hsiu
authors.initials: JH
authors.lastname: Hung
authors.forename: Chong Yau
authors.initials: CY
authors.lastname: Fu
authors.forename: Jamie
authors.initials: J
authors.lastname: Hung
mesh_terms: D000138:Acidosis / Q000097:blood / Q000503:physiopathology*; D000328:Adult; D016022:Case-Control Studies; D005260:Female; D005317:Fetal Growth Retardation / Q000000981:diagnostic imaging* / Q000503:physiopathology; D006801:Humans; D007231:Infant, Newborn; D011237:Predictive Value of Tests; D011247:Pregnancy; D012372:ROC Curve; D012189:Retrospective Studies; D018608:Ultrasonography, Doppler; D016216:Ultrasonography, Prenatal / Q000379:methods*; D014469:Umbilical Arteries / Q000503:physiopathology*; D014471:Umbilical Veins / Q000503:physiopathology*; D014655:Vascular Resistance