2014
Doppler abnormalities in monochorionic diamniotic twin pregnancies with discordant growth
Zuckerwise L, Nayeri U, Abdel-Razeq S, Copel J, Bahtiyar M. Doppler abnormalities in monochorionic diamniotic twin pregnancies with discordant growth. Journal Of Perinatology 2014, 35: 387-389. PMID: 25521562, DOI: 10.1038/jp.2014.223.Peer-Reviewed Original ResearchConceptsDoppler flow velocity waveformsFlow velocity waveformsDiscordant growthVelocity waveformsTwin gestationsSmall fetusesAbnormal umbilical artery Doppler flow velocity waveformsUmbilical artery Doppler flow velocity waveformsMonochorionic diamniotic twin gestationsMonochorionic diamniotic twin pregnanciesNeonatal intensive care unitDiamniotic twin gestationsMCDA twin pairsDiamniotic twin pregnanciesEnd-diastolic flowLow Apgar scoreBirth weight discordanceDiscordant fetal growthIntensive care unitTwin transfusion syndromeDoppler velocity waveformsT-testElectronic medical recordsTwin pairsStudent's t-test
1995
Umbilical artery flow velocity waveforms in monoamniotic twins with cord entanglement.
Abuhamad A, Mari G, Copel J, Cantwell C, Evans A. Umbilical artery flow velocity waveforms in monoamniotic twins with cord entanglement. Obstetrics And Gynecology 1995, 86: 674-7. PMID: 7675410, DOI: 10.1016/0029-7844(95)00210-i.Peer-Reviewed Case Reports and Technical NotesConceptsUmbilical artery velocity waveformsFlow velocity waveformsCord entanglementMonoamniotic twinsVelocity waveformsUltrasonographic evidenceWeeks' gestationUmbilical artery flow velocity waveformsDoppler flow velocity waveformsMiddle cerebral arteryFetal-placental circulationTwin membersUmbilical cord entanglementAntepartum managementDoppler findingsCerebral arteryHemodynamic alterationsAntepartum periodUmbilical vesselsGestationPregnancyArteryFetuses
1994
Color Doppler flow patterns and flow velocity waveforms of the intraplacental fetal circulation in growth-retarded fetuses
Rotmensch S, Liberati M, Luo J, Kliman H, Gollin Y, Bellati U, Hobbins J, Copel J. Color Doppler flow patterns and flow velocity waveforms of the intraplacental fetal circulation in growth-retarded fetuses. American Journal Of Obstetrics And Gynecology 1994, 171: 1257-1264. PMID: 7977530, DOI: 10.1016/0002-9378(94)90143-0.Peer-Reviewed Original ResearchConceptsIntrauterine growth retardationFlow velocity waveformsUmbilical artery flow velocity waveformsColor Doppler flow signalsColor Doppler flow patternsDoppler flow signalsDoppler flow patternsVillous arteriesColor Doppler flowGrowth retardationVelocity waveformsFetal distressDoppler flowAbnormal umbilical artery flow velocity waveformsReversed end-diastolic flowDoppler flow velocity waveformsFlow signalsMedian Apgar scoresEnd-diastolic flowGrowth-retarded fetusesCross-sectional studyPulsed-wave DopplerApgar scoreColor Doppler flow imagesNormal pregnancy
1989
Pulsed Doppler flow-velocity waveforms in the prediction of fetal hematocrit of the severely isoimmunized pregnancy
Copel J, Grannum P, Green J, Belanger K, Hobbins J. Pulsed Doppler flow-velocity waveforms in the prediction of fetal hematocrit of the severely isoimmunized pregnancy. American Journal Of Obstetrics And Gynecology 1989, 161: 341-344. PMID: 2504040, DOI: 10.1016/0002-9378(89)90516-4.Peer-Reviewed Original Research
1988
Pulsed Doppler flow-velocity waveforms before and after intrauterine intravascular transfusion for severe erythroblastosis fetalis
Copel J, Grannum P, Belanger K, Green J, Hobbins J. Pulsed Doppler flow-velocity waveforms before and after intrauterine intravascular transfusion for severe erythroblastosis fetalis. American Journal Of Obstetrics And Gynecology 1988, 158: 768-774. PMID: 2966585, DOI: 10.1016/0002-9378(88)90070-1.Peer-Reviewed Original ResearchConceptsLate transfusionDoppler flow velocity waveformsIntrauterine intravascular transfusionFlow velocity waveformsSevere erythroblastosis fetalisFirst transfusionIntrauterine transfusionSubsequent transfusionsErythroblastosis fetalisIntravascular transfusionIsoimmunized pregnanciesDoppler studiesMaternal circulationDoppler ultrasoundTransfusionNormal fetusesHematocrit changesLack of changeHematocritDoppler parametersFetusesRapid volumeHydropsPregnancyFetalis