2022
Postpartum cervical length as a predictor of subsequent preterm birth—novel insights on an old enigma
Lauterbach R, Bachar G, Ben-David C, Justman N, Siegler Y, Tzur L, Copel JA, Weiner Z, Beloosesky R, Ginsberg Y. Postpartum cervical length as a predictor of subsequent preterm birth—novel insights on an old enigma. American Journal Of Obstetrics And Gynecology 2022, 228: 461.e1-461.e8. PMID: 36265677, DOI: 10.1016/j.ajog.2022.10.012.Peer-Reviewed Original ResearchConceptsSpontaneous preterm birthSubsequent spontaneous preterm birthCervical lengthCervical length measurementPreterm birthPreterm birth groupGestational ageHours postpartumWeeks postpartumTerm groupBirth groupShort cervical lengthSubsequent preterm birthAdverse perinatal outcomesMaternal risk factorsProspective cohort studySingle tertiary centerGroup of patientsPhase 1Perinatal outcomesCohort studyTerm deliveryTertiary centerSubsequent pregnancyPostpartum period
2021
Utility of routine screening fetal echocardiogram in pregnancies conceived by in vitro fertilization
Bjorkman KR, Bjorkman SH, Ferdman DJ, Sfakianaki AK, Copel JA, Bahtiyar MO. Utility of routine screening fetal echocardiogram in pregnancies conceived by in vitro fertilization. Fertility And Sterility 2021, 116: 801-808. PMID: 34210397, DOI: 10.1016/j.fertnstert.2021.04.035.Peer-Reviewed Original ResearchConceptsFetal echocardiogramIncidence of CHDFetal echocardiographyIVF pregnanciesRisk factorsIVF groupInsignificant ventricular septal defectsLarge tertiary care centerStatewide hospital discharge dataMean gestational ageTertiary care centerCases of CHDHospital discharge dataRoutine prenatal careVentricular septal defectConfidence intervalsPopulation ratesBirth Defects RegistrySignificant CHDMedication exposureCohort studyPulmonary stenosisPrevious pregnancyGestational ageInfant outcomes
2019
Fetal Myocardial Function as Assessed by N-Terminal Fragment Brain Natriuretic Protein in Premature Fetuses Exposed to Intra-amniotic Inflammation
Irani RA, Buhimschi CS, Cross SN, Zhao G, Copel JA, Bhandari V, Buhimschi IA, Bahtiyar MO. Fetal Myocardial Function as Assessed by N-Terminal Fragment Brain Natriuretic Protein in Premature Fetuses Exposed to Intra-amniotic Inflammation. American Journal Of Perinatology 2019, 37: 745-753. PMID: 31121635, DOI: 10.1055/s-0039-1688909.Peer-Reviewed Original ResearchMeSH KeywordsAdultAmniocentesisAmniotic FluidBiomarkersChorioamnionitisEchocardiography, DopplerFemaleFetal BloodFetal HeartHumansInfant, NewbornInfant, PrematureInflammationInterleukin-6MaleMass SpectrometryNatriuretic Peptide, BrainPeptide FragmentsPlacentaPregnancyPremature BirthVentricular Function, LeftConceptsIntra-amniotic infection/inflammationBrain natriuretic proteinAmniotic fluidNT-proBNPTei indexNatriuretic proteinVentricular functionFetal exposureCord bloodCord IL-6Intra-amniotic inflammationFetal myocardial functionInfection/inflammationBlood NT-proBNPFetal heart functionNT-proBNP immunoassaysEnzyme-linked immunosorbentGestational agePremature fetusesFetal echocardiogramIL-6Circulatory levelsMyocardial functionHeart functionFetuses
2009
Prospective Evaluation of Fetuses With Autoimmune-Associated Congenital Heart Block Followed in the PR Interval and Dexamethasone Evaluation (PRIDE) Study
Friedman DM, Kim MY, Copel JA, Llanos C, Davis C, Buyon JP. Prospective Evaluation of Fetuses With Autoimmune-Associated Congenital Heart Block Followed in the PR Interval and Dexamethasone Evaluation (PRIDE) Study. The American Journal Of Cardiology 2009, 103: 1102-1106. PMID: 19361597, PMCID: PMC2730772, DOI: 10.1016/j.amjcard.2008.12.027.Peer-Reviewed Original ResearchConceptsThird-degree blockSecond-degree blockCongenital heart blockFirst-degree blockDEX groupHeart blockAutoimmune-Associated Congenital Heart BlockEfficacy of dexamethasoneSteroid side effectsNormal sinus rhythmMedian ventricular ratesCardiac dysfunctionGestational ageVentricular rateNonrandomized studyProspective evaluationSinus rhythmGrowth restrictionPR intervalPacemaker useRare caseTherapeutic benefitSide effectsBirth ageDexamethasone
2008
Prenatal Course of Isolated Muscular Ventricular Septal Defects Diagnosed Only by Color Doppler Sonography
Bahtiyar MO, Dulay AT, Weeks BP, Friedman AH, Copel JA. Prenatal Course of Isolated Muscular Ventricular Septal Defects Diagnosed Only by Color Doppler Sonography. Journal Of Ultrasound In Medicine 2008, 27: 715-720. PMID: 18424646, DOI: 10.7863/jum.2008.27.5.715.Peer-Reviewed Original ResearchMeSH KeywordsCohort StudiesDown SyndromeEchocardiographyFemaleFetal DevelopmentFetal DiseasesFetal HeartFollow-Up StudiesGestational AgeHeart Septal Defects, VentricularHumansInfant, NewbornNuchal Translucency MeasurementPregnancyPregnancy OutcomeProspective StudiesRisk AssessmentTripletsTwinsUltrasonography, Doppler, ColorUltrasonography, PrenatalConceptsVentricular septal defectColor Doppler examinationMuscular VSDDoppler examinationSeptal defectStudy groupIsolated muscular ventricular septal defectTrisomy 21Isolated ventricular septal defectMuscular ventricular septal defectsHigh-resolution ultrasound equipmentCommon congenital heart defectSmall muscular VSDMean gestational ageFetal echocardiographic examinationColor Doppler sonographyCongenital heart defectsPrenatal resolutionTriplet gestationsEchocardiographic examinationGestational ageCounseling patientsPerinatal courseTwin gestationsFirst trimester
2001
Ratio of nuchal thickness to humerus length for Down syndrome detection
Bahado-Singh R, Oz U, Hsu C, Deren O, Copel J, Mahoney M. Ratio of nuchal thickness to humerus length for Down syndrome detection. American Journal Of Obstetrics And Gynecology 2001, 184: 1284-1288. PMID: 11349203, DOI: 10.1067/mob.2001.113878.Peer-Reviewed Original ResearchConceptsDown syndrome riskHigh-risk groupMaternal ageSyndrome riskNuchal thicknessDown syndromeDown syndrome detectionStudy populationIndividual Down's syndrome riskMean gestational ageOverall study populationAge-related riskHumerus lengthSyndrome detectionDown syndrome casesDown's syndrome likelihood ratiosGestational ageProspective dataHealthy groupGross anomaliesNormal fetusesSyndrome casesBiparietal diameterAmniocentesis casesFetal populationCan Risk Factor Assessment Replace Universal Screening for Gonorrhea and Chlamydia in the Third Trimester?
Magriples U, Copel J. Can Risk Factor Assessment Replace Universal Screening for Gonorrhea and Chlamydia in the Third Trimester? American Journal Of Perinatology 2001, 18: 465-468. PMID: 11733863, DOI: 10.1055/s-2001-18790.Peer-Reviewed Original ResearchConceptsThird trimesterPrenatal careInitial negative testNegative initial screenRisk factor screeningThird-trimester testingUrban clinic populationFirst prenatal visitHistory of STDNegative predictive valueAbsence of RFRF screeningPrenatal visitChlamydia screeningGestational agePositive RFStudy criteriaClinic populationClinic settingUniversal screeningLower riskProspective analysisNegative testPredictive valueDrug use
2000
Splenic artery Doppler peak systolic velocity predicts severe fetal anemia in rhesus disease
Bahado-Singh R, Oz U, Deren O, Kovanchi E, Hsu C, Copel J, Mari G. Splenic artery Doppler peak systolic velocity predicts severe fetal anemia in rhesus disease. American Journal Of Obstetrics And Gynecology 2000, 182: 1222-1226. PMID: 10819862, DOI: 10.1016/s0002-9378(00)70189-x.Peer-Reviewed Original ResearchConceptsDoppler peak systolic velocityPeak systolic velocitySevere anemiaSystolic velocityPrior transfusionsGestational ageHemoglobin deficitStudy groupSplenic artery peak systolic velocityMean peak systolic velocityPeak systolic velocity valuesMean gestational ageOverall study groupSevere fetal anemiaCord blood specimensSystolic velocity valuesNonhydropic fetusesMean hemoglobinRhesus diseaseFetal anemiaFetal hydropsStudy populationBlood specimensNormal fetusesFirst such reportNoninvasive Diagnosis by Doppler Ultrasonography of Fetal Anemia Due to Maternal Red-Cell Alloimmunization
Mari G, Deter R, Carpenter R, Rahman F, Zimmerman R, Moise K, Dorman K, Ludomirsky A, Gonzalez R, Gomez R, Oz U, Detti L, Copel J, Bahado-Singh R, Berry S, Martinez-Poyer J, Blackwell S. Noninvasive Diagnosis by Doppler Ultrasonography of Fetal Anemia Due to Maternal Red-Cell Alloimmunization. New England Journal Of Medicine 2000, 342: 9-14. PMID: 10620643, DOI: 10.1056/nejm200001063420102.Peer-Reviewed Original ResearchMeSH KeywordsBlood Flow VelocityBlood Group IncompatibilityCordocentesisErythroblastosis, FetalErythrocytesFemaleFetal BloodGestational AgeHemoglobinsHumansInfant, NewbornIsoantibodiesMiddle Cerebral ArteryPregnancyPregnancy Complications, HematologicProspective StudiesReference ValuesRh IsoimmunizationROC CurveSensitivity and SpecificityUltrasonography, Doppler, PulsedUltrasonography, PrenatalConceptsMaternal red cell alloimmunizationRed cell alloimmunizationMiddle cerebral arterySystolic blood flowCerebral arteryBlood flowSevere anemiaFetal anemiaDoppler ultrasonographyNormal fetusesHemoglobin concentrationFetal middle cerebral arteryPeak velocityFetal hemoglobin concentrationAbsence of hydropsPeak systolic velocityGestational ageModerate anemiaSystolic velocityHemoglobin valuesMild anemiaInvasive techniquesAlloimmunizationAnemiaArtery
1999
A new splenic artery Doppler velocimetric index for prediction of severe fetal anemia associated with Rh alloimmunization
Bahado-Singh R, Oz U, Deren O, Pirhonen J, Kovanci E, Copel J, Onderoglu L. A new splenic artery Doppler velocimetric index for prediction of severe fetal anemia associated with Rh alloimmunization. American Journal Of Obstetrics And Gynecology 1999, 180: 49-54. PMID: 9914577, DOI: 10.1016/s0002-9378(99)70148-1.Peer-Reviewed Original ResearchConceptsMain splenic arterySevere fetal anemiaSevere anemiaHemoglobin deficitFetal anemiaSplenic arteryGestational ageDoppler velocimetric indicesDevelopment of hydropsNew Doppler indexVelocimetric indicesCase patientsDoppler indicesRh alloimmunizationRh sensitizationHealthy fetusesAnemiaFalse positive rateNoninvasive predictionDiastolic phaseAnemia detectionDoppler velocimetrySignificant correlationArteryCordocentesis
1998
Prenatal prediction of neonatal outcome in the extremely low-birth-weight infant
Bahado-Singh R, Dashe J, Deren O, Daftary G, Copel J, Ehrenkranz R. Prenatal prediction of neonatal outcome in the extremely low-birth-weight infant. American Journal Of Obstetrics And Gynecology 1998, 178: 462-468. PMID: 9539509, DOI: 10.1016/s0002-9378(98)70421-1.Peer-Reviewed Original ResearchConceptsNeonatal outcomesOverall survivalSevere morbidityGestational ageAbdominal circumferenceBackward stepwise logistic regression analysisStepwise logistic regression analysisSevere neonatal morbiditySignificant independent predictorsAbdominal circumference measurementsLogistic regression analysisObstetric decision makingPrenatal parametersNeonatal morbiditySingleton infantsWeight infantsIndependent predictorsFetal weightNeonatal dataBirth weightWeight pregnanciesObstetric estimatePrenatal predictorsParental counselingCategories of outcomesElevated amniotic fluid nitric oxide metabolites and interleukin-6 in intra-amniotic infection.
Hsu C, Meaddough E, Hong S, Aversa K, Lu L, Copel J. Elevated amniotic fluid nitric oxide metabolites and interleukin-6 in intra-amniotic infection. Reproductive Sciences 1998, 5: 21-4. PMID: 9501294, DOI: 10.1016/s1071-5576(97)00099-3.Peer-Reviewed Original ResearchConceptsAmniotic fluid nitric oxide metabolitesIntra-amniotic infectionNitric oxide metabolitesLeukocyte esterase activityIL-6Oxide metabolitesLeukocyte countInterleukin-6Glucose levelsRank correlation testAmniotic fluid creatinine levelsAmniotic fluid glucose levelAmniotic fluid IL-6Positive amniotic fluid cultureGram stainIL-6 levelsInterleukin-6 concentrationsIL-6 concentrationsAmniotic fluid leukocyte countsUseful clinical markerMann-Whitney U testEnzyme-linked immunosorbentAmniotic fluid cultureCreatinine levelsGestational ageElevated Amniotic Fluid Nitrix Oxide Metabolites and Interleukin-6 in Intra-amniotic Infection
Hsu C, Meaddough E, Hong S, Aversa K, Lu L, Copel J. Elevated Amniotic Fluid Nitrix Oxide Metabolites and Interleukin-6 in Intra-amniotic Infection. Reproductive Sciences 1998, 5: 21-24. DOI: 10.1177/107155769800500105.Peer-Reviewed Original ResearchAmniotic fluid nitric oxide metabolitesIntra-amniotic infectionNitric oxide metabolitesLeukocyte esterase activityIL-6Oxide metabolitesLeukocyte countInterleukin-6Glucose levelsRank correlation testAmniotic fluid creatinine levelsAmniotic fluid glucose levelAmniotic fluid IL-6Positive amniotic fluid cultureGram stainIL-6 concentrationsIL-6 levelsInterleukin-6 concentrationsAmniotic fluid leukocyte countsUseful clinical markerMann-Whitney U testEnzyme-linked immunosorbentAmniotic fluid cultureCreatinine levelsGestational age
1997
Maternal Serum Uric Acid Levels in Preeclamptic Women with Multiple Gestations
Hsu C, Chhung Y, Lee I, Chou K, Copel J. Maternal Serum Uric Acid Levels in Preeclamptic Women with Multiple Gestations. American Journal Of Perinatology 1997, 14: 613-617. PMID: 9605248, DOI: 10.1055/s-2008-1040764.Peer-Reviewed Original ResearchConceptsMaternal serum uric acid levelsSerum uric acid levelsDiagnosis of preeclampsiaUric acid levelsTriplet gestationsMultiple gestationsTwin gestationsGestational ageCutoff valueClinically useful cutoff valuesAcid levelsElevated liver enzymesBlood pressure >Receiver operating characteristic curveStages of gestationPreeclamptic womenEclamptic seizuresPreeclampsiaGestationNonpreeclampticsLiver enzymesMedical recordsSerumCharacteristic curveDiagnosisThe 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 cyclePulsatileVeinAlloimmunizationUteroIncrease of fetal hematocrit decreases the middle cerebral artery peak systolic velocity in pregnancies complicated by rhesus alloimmunization
Mari G, Rahman F, Olofsson P, Ozcan T, Copel J. Increase of fetal hematocrit decreases the middle cerebral artery peak systolic velocity in pregnancies complicated by rhesus alloimmunization. The Journal Of Maternal-Fetal Medicine 1997, 6: 206-208. PMID: 9260116, DOI: 10.1002/(sici)1520-6661(199707/08)6:4<206::aid-mfm3>3.0.co;2-n.Peer-Reviewed Original ResearchConceptsMiddle cerebral artery peak systolic velocityPeak systolic velocitySystolic velocityFetal hematocritTime of studyIntrauterine transfusionRed blood cellsFetal anemiaRhesus alloimmunizationGestational ageRh alloimmunizationDoppler ultrasoundBlood cellsHematocritAlloimmunizationPregnancyT-testP-valueDoppler measurementsStatistical comparisonTransfusionAnemiaDiagnosisFirst-trimester growth restriction and fetal aneuploidy: The effect of type of aneuploidy and gestational age
Bahado-Singh R, Lynch L, Deren O, Morroti R, Copel J, Mahoney M, Williams J. First-trimester growth restriction and fetal aneuploidy: The effect of type of aneuploidy and gestational age. American Journal Of Obstetrics And Gynecology 1997, 176: 976-980. PMID: 9166154, DOI: 10.1016/s0002-9378(97)70388-0.Peer-Reviewed Original ResearchConceptsCrown-rump lengthGestational ageTrisomy 18First trimester fetal growthFirst-trimester crown-rump lengthLength shorteningFirst-trimester growth restrictionLast menstrual periodReceiver operator characteristic curveFirst-trimester fetusesPrenatal diagnosis centerWeeks' gestationRisk pregnanciesFetal growthAneuploidy riskControl fetusesGrowth restrictionMenstrual periodNormal groupNormal fetusesTrimester fetusesAneuploid fetusesTrisomy 21Trisomy 13Down syndromeIncrease of Fetal Hematocrit Decreases the Middle Cerebral Artery Peak Systolic Velocity in Pregnancies Complicated by Rhesus Alloimmunization
Mari G, Rahman F, Olofsson P, Ozcan T, Copel J. Increase of Fetal Hematocrit Decreases the Middle Cerebral Artery Peak Systolic Velocity in Pregnancies Complicated by Rhesus Alloimmunization. The Journal Of Maternal-Fetal Medicine 1997, 6: 206-208. DOI: 10.3109/14767059709161986.Peer-Reviewed Original ResearchMiddle cerebral artery peak systolic velocityPeak systolic velocitySystolic velocityFetal hematocritTime of studyIntrauterine transfusionRed blood cellsFetal anemiaRhesus alloimmunizationGestational ageRh alloimmunizationDoppler ultrasoundBlood cellsHematocritAlloimmunizationPregnancyT-testP-valueDoppler measurementsStatistical comparisonTransfusionAnemiaDiagnosis
1996
Is the fetal brain‐sparing effect a risk factor for the development of intraventricular hemorrhage in the preterm infant?
Mari G, Abuhamad A, Keller M, Verpairojkit B, Ment L, Copel J. Is the fetal brain‐sparing effect a risk factor for the development of intraventricular hemorrhage in the preterm infant? Ultrasound In Obstetrics And Gynecology 1996, 8: 329-332. PMID: 8978007, DOI: 10.1046/j.1469-0705.1996.08050329.x.Peer-Reviewed Original ResearchConceptsMiddle cerebral artery pulsatility indexCerebral artery pulsatility indexBrain-sparing effectArtery pulsatility indexIntrauterine growth restrictionIntraventricular hemorrhagePulsatility indexPreterm laborAntenatal exposureGestational ageMean birth weightNeonatal intraventricular hemorrhageRespiratory distress syndromeMiddle cerebral arteryFirst postnatal weekApgar scoreCesarean sectionNecrotizing enterocolitisPreterm infantsBrain sparingDistress syndromeWeeks' gestationCerebral arteryIUGR fetusesDoppler studiesAdrenal artery velocity waveforms in the appropriate and small‐for‐gestational‐age fetus
Mari G, Uerpairojkit B, Abuhamad A, Copel J. Adrenal artery velocity waveforms in the appropriate and small‐for‐gestational‐age fetus. Ultrasound In Obstetrics And Gynecology 1996, 8: 82-86. PMID: 8883308, DOI: 10.1046/j.1469-0705.1996.08020082.x.Peer-Reviewed Original ResearchConceptsGestational age fetusesArtery pulsatility indexFlow velocity waveformsPulsatility indexVelocity waveformsAdrenal arteryFetal heart rate decelerationsHeart rate decelerationsPreterm deliveryCesarean sectionGestational ageDoppler ultrasonographyAdrenal glandBlood flowHigh incidenceNormal fetusesFetusesRate decelerationConfidence intervalsSuccess rateArteryUltrasonographyGestationIncidence