2013
Predictive role of prenasal thickness and nasal bone for Down syndrome in the second trimester
Ozcan T, Özlü T, Allen J, Peterson J, Pressman E. Predictive role of prenasal thickness and nasal bone for Down syndrome in the second trimester. European Journal Of Obstetrics & Gynecology And Reproductive Biology 2013, 171: 220-224. PMID: 24044955, DOI: 10.1016/j.ejogrb.2013.08.039.Peer-Reviewed Original ResearchConceptsPrenasal thicknessNasal boneDown syndromePrediction of Down syndromeReceiver operating curve analysisTrimester ultrasound examinationPredictors of DSArea under the curveCut-off valueOperating curve analysisGestational ageNormal karyotypeUltrasound examinationFetusesGroup 2Group 1TrimesterCurve analysisPredictive roleDS casesFrontal boneBoneSyndromeAnterior edgePrediction of DSTwin–Twin Transfusion Syndrome Presenting as Polyhydramnios in Both Fetuses Secondary to Spontaneous Microseptostomy
Hackney D, Khalek N, Moldenhauer J, Ozcan T. Twin–Twin Transfusion Syndrome Presenting as Polyhydramnios in Both Fetuses Secondary to Spontaneous Microseptostomy. American Journal Of Perinatology Reports 2013, 03: 083-086. PMID: 24147241, PMCID: PMC3799708, DOI: 10.1055/s-0033-1343790.Peer-Reviewed Original ResearchTwin-twin transfusion syndromeTransfusion syndromeDiagnosis of twin-twin transfusion syndromeDividing membranePresence of polyhydramniosDiamniotic twinsPlacental examinationUnusual presentationAmniotic sacPolyhydramniosSeptostomyPathological findingsSyndromeUltrasoundDiagnosisOligohydramniosAmniocentesisFetoscopyFetuses
2010
Mitral valve–tricuspid valve distance as a sonographic marker of trisomy 21
Grace D, Eggers P, Glantz J, Ozcan T. Mitral valve–tricuspid valve distance as a sonographic marker of trisomy 21. Ultrasound In Obstetrics And Gynecology 2010, 35: 172-177. PMID: 20069681, DOI: 10.1002/uog.7538.Peer-Reviewed Original ResearchConceptsMitral valve-tricuspid valve distanceMarkers of trisomyGestational ageSonographic markersTrisomy 21Cardiac defectsLinear regression analysisGestational age-specific percentilesSecond-trimester sonographic markersEffect of gestational ageRetrospective case-control studyCases of trisomyValve distanceMultiple linear regression analysisRegression analysisCase-control studyAge-specific percentilesWeeks gestationControl fetusesSecond-trimesterTricuspid valveVentricular septumFalse-positive rateTrisomyFetuses
1998
Can a single measurement of amniotic fluid delta optical density be safely used in the clinical management of Rhesus‐alloimmunized pregnancies before 27 weeks' gestation?
Rahman F, Detti L, Ozcan T, Khan R, Manohar S, Mari G. Can a single measurement of amniotic fluid delta optical density be safely used in the clinical management of Rhesus‐alloimmunized pregnancies before 27 weeks' gestation? Acta Obstetricia Et Gynecologica Scandinavica 1998, 77: 804-807. PMID: 9776592, DOI: 10.1034/j.1600-0412.1998.770804.x.Peer-Reviewed Original ResearchConceptsAmniotic fluid samplesWeeks gestationFetal anemiaAmniotic fluid optical densityDiagnosis of fetal anemiaPredicting fetal anemiaFluid samplesDelta optical densityRhesus alloimmunizationCross-sectional studyFetal bloodUltrasound guidanceClinical managementGestationPregnancyAnemiaOptical densityHematocrit levelsPredictive efficacyFetusesWeeksDiagnosisBloodEfficacyHematocrit
1997
The effect of intravascular blood transfusion on the flow velocity waveform of the portal venous system of the anemic fetus
d'Ancona R, Rahman F, Ozcan T, Copel J, Mari G. The effect of intravascular blood transfusion on the flow velocity waveform of the portal venous system of the anemic fetus. Ultrasound In Obstetrics And Gynecology 1997, 10: 333-337. PMID: 9444047, DOI: 10.1046/j.1469-0705.1997.10050333.x.Peer-Reviewed Original ResearchConceptsFlow velocity waveformsPortal venous systemAnemic fetusesVelocity waveformsPortal hypertensionIntravascular transfusionPortal veinVenous systemNormal fetusesIntravascular blood transfusionNon-pulsatile flowBlood transfusionRhesus alloimmunizationGestational agePulsatile patternTransfusionFetusesPresence of pulsatilityHypertensionIncreased numberCardiac cyclePulsatileVeinAlloimmunizationUtero