1999
The Doppler cerebroplacental ratio and perinatal outcome in intrauterine growth restriction
Bahado-Singh R, Kovanci E, Jeffres A, Oz U, Deren O, Copel J, Mari G. The Doppler cerebroplacental ratio and perinatal outcome in intrauterine growth restriction. American Journal Of Obstetrics And Gynecology 1999, 180: 750-756. PMID: 10076158, DOI: 10.1016/s0002-9378(99)70283-8.Peer-Reviewed Original ResearchConceptsIntrauterine growth restrictionDoppler cerebroplacental ratioPerinatal outcomesCerebroplacental ratioBirth weightGrowth restrictionDoppler examinationUmbilical artery pulsatility index valuesStepwise logistic regression analysisAbnormal cerebroplacental ratioBrain-sparing effectLast Doppler examinationUmbilical artery DopplerUmbilical artery velocimetryPulsatility index valuesReceiver operator curve characteristicsReceiver operator characteristic curveLogistic regression analysisRegression analysisArtery DopplerPerinatal morbidityPerinatal complicationsWeeks' gestationNormal medianPerinatal problemsA high-sensitivity alternative to “routine” genetic amniocentesis: Multiple urinary analytes, nuchal thickness, and age
Bahado-Singh R, Oz U, Kovanci E, Cermik D, Copel J, Mahoney M, Cole L. A high-sensitivity alternative to “routine” genetic amniocentesis: Multiple urinary analytes, nuchal thickness, and age. American Journal Of Obstetrics And Gynecology 1999, 180: 169-173. PMID: 9914599, DOI: 10.1016/s0002-9378(99)70170-5.Peer-Reviewed Original ResearchConceptsAdvanced maternal ageNuchal thicknessMaternal ageGenetic amniocentesisDown syndrome detection rateUrinary beta-core fragmentUrinary analytesMaternal age-related riskRisk thresholdSyndrome detection rateTotal study populationHigh-risk groupAge-related riskBeta-core fragmentRate of amniocentesisHuman chorionic gonadotropinDown syndrome riskDown's syndrome likelihood ratiosDown's syndrome screening efficiencyLikelihood ratioCommon indicationFalse positive rateNormal medianPregnant womenSyndrome risk
1998
An alternative for women initially declining genetic amniocentesis: Individual Down syndrome odds on the basis of maternal age and multiple ultrasonographic markers
Bahado-Singh R, Deren O, Oz U, Tan A, Hunter D, Copel J, Mahoney M. An alternative for women initially declining genetic amniocentesis: Individual Down syndrome odds on the basis of maternal age and multiple ultrasonographic markers. American Journal Of Obstetrics And Gynecology 1998, 179: 514-519. PMID: 9731862, DOI: 10.1016/s0002-9378(98)70388-6.Peer-Reviewed Original ResearchConceptsHyperechoic fetal bowelMaternal ageDown syndromeFetal bowelUltrasonographic parametersScreen-positive rateSignificant independent predictorsAge-related riskDown syndrome riskIndividual oddsLikelihood ratioPositive predictive valueHypoplastic fifth digitDigit hypoplasiaWeeks' gestationIndependent predictorsNormal medianIndividual Down syndrome oddsSingleton fetusesSyndrome riskUltrasonographic markersSerum screeningGenetic amniocentesisHigh riskNuchal thickening
1992
Fetuses with Down syndrome have disproportionately shortened frontal lobe dimensions on ultrasonographic examination
Bahado-Singh R, Wyse L, Dorr M, Copel J, O'Connor T, Hobbins J. Fetuses with Down syndrome have disproportionately shortened frontal lobe dimensions on ultrasonographic examination. American Journal Of Obstetrics And Gynecology 1992, 167: 1009-1014. PMID: 1415385, DOI: 10.1016/s0002-9378(12)80029-9.Peer-Reviewed Original ResearchConceptsDown syndrome fetusesSyndrome fetusesFrontothalamic distanceDown syndromePositive predictive valueWeeks' gestationGestational ageNormal medianPosterior thalamusUltrasonographic examinationGroup 52Normal fetusesFrontal lobePredictive valueInner tableFetusesFrontal boneMedianGestationMean valueSyndrome