2023
Outcomes of induction vs prelabor cesarean delivery at <33 weeks for hypertensive disorders of pregnancy
Bushman E, Grobman W, Bailit J, Reddy U, Wapner R, Varner M, Thorp J, Caritis S, Prasad M, Saade G, Sorokin Y, Rouse D, Blackwell S, Tolosa J, Network E. Outcomes of induction vs prelabor cesarean delivery at <33 weeks for hypertensive disorders of pregnancy. American Journal Of Obstetrics & Gynecology MFM 2023, 5: 101032. PMID: 37244639, PMCID: PMC10521213, DOI: 10.1016/j.ajogmf.2023.101032.Peer-Reviewed Original ResearchConceptsPrelabor cesarean deliveryHypertensive disordersInduction of laborCesarean deliveryLabor inductionNeonatal morbidityInduction groupMedian durationVaginal deliveryWeeks' gestationSecondary analysisAdverse composite outcomeComposite maternal morbidityOutcome of inductionPreterm hypertensive disordersHalf of patientsCesarean delivery groupLength of inductionOptimal delivery approachMaternal morbidityComposite outcomeFetal malpresentationMultiple gestationsPreterm birthSecondary outcomes
2021
Maternal serum fructosamine levels and stillbirth: a case–control study of the Stillbirth Collaborative Research Network
Arslan E, Allshouse A, Page J, Varner M, Thorsten V, Parker C, Dudley D, Saade G, Goldenberg R, Stoll B, Hogue C, Bukowski R, Conway D, Pinar H, Reddy U, Silver R. Maternal serum fructosamine levels and stillbirth: a case–control study of the Stillbirth Collaborative Research Network. BJOG An International Journal Of Obstetrics & Gynaecology 2021, 129: 619-626. PMID: 34529344, DOI: 10.1111/1471-0528.16922.Peer-Reviewed Original ResearchConceptsSerum fructosamine levelsFructosamine levelsCase-control studyTime of deliveryLive birthsStillbirth Collaborative Research NetworkLive birth controlsCases of stillbirthPotential confounding factorsGeographic catchment areaSingleton stillbirthsGlycaemic controlDiabetes statusMulticentre studyRoutine screeningFructosamine measurementsDiabetesStillbirthConfounding factorsSecondary analysisWomenBirthCollaborative research networksBirth controlResearch NetworkChronic hypertension, perinatal mortality and the impact of preterm delivery: a population‐based study
Grover S, Brandt J, Reddy U, Ananth C. Chronic hypertension, perinatal mortality and the impact of preterm delivery: a population‐based study. BJOG An International Journal Of Obstetrics & Gynaecology 2021, 129: 572-579. PMID: 34536318, PMCID: PMC9214277, DOI: 10.1111/1471-0528.16932.Peer-Reviewed Original ResearchConceptsPerinatal mortality rateChronic hypertensionEarly term deliveryPreterm deliveryPerinatal mortalityMortality rateTerm deliverySingleton birthsCausal mediation analysisMaternal chronic hypertensionElevated blood pressureModifiable risk factorsPopulation-based studyWeeks of gestationLate-term gestationCross-sectional analysisNormotensive pregnanciesPreterm birthBlood pressureTerm gestationPerinatal deathRisk factorsHypertensionMAIN OUTCOMEMortality
2019
The impact of induction of labor at 39 weeks in low-risk women on the incidence of stillbirth
Po' G, Oliver EA, Reddy UM, Silver RM, Berghella V. The impact of induction of labor at 39 weeks in low-risk women on the incidence of stillbirth. American Journal Of Obstetrics And Gynecology 2019, 222: 88-90. PMID: 31545942, DOI: 10.1016/j.ajog.2019.09.032.Peer-Reviewed Original ResearchSevere maternal morbidity during delivery hospitalisation in a large international administrative database, 2008–2013: a retrospective cohort
Lipkind H, Zuckerwise L, Turner E, Collins J, Campbell K, Reddy U, Illuzi J, Merriam A. Severe maternal morbidity during delivery hospitalisation in a large international administrative database, 2008–2013: a retrospective cohort. BJOG An International Journal Of Obstetrics & Gynaecology 2019, 126: 1223-1230. PMID: 31100201, DOI: 10.1111/1471-0528.15818.Peer-Reviewed Original ResearchMeSH KeywordsAdultAustraliaCenters for Disease Control and Prevention, U.S.ComorbidityDatabases, FactualEnglandFemaleHospitalizationHumansMaternal AgeMaternal DeathMiddle AgedObstetric Labor ComplicationsPregnancyPregnancy ComplicationsPregnancy OutcomeRetrospective StudiesRisk FactorsUnited StatesYoung AdultConceptsSevere maternal morbidityMaternal morbidityDelivery hospitalisationRetrospective cohortRisk factorsSevere maternal morbidity ratesMaternal morbidity ratesAcute renal failureLife-threatening diagnosisAdvanced maternal ageLife-saving procedureLarge university hospitalChi-square testMorbidity variesPregnancy complicationsClinical characteristicsIntravascular coagulationRenal failureSevere morbidityMultivariable analysisMorbidity rateAdverse outcomesClinical differencesMaternal ageUniversity Hospital
2018
Stillbirth, Inflammatory Markers, and Obesity: Results from the Stillbirth Collaborative Research Network
Harrison MS, Thorsten VR, Dudley DJ, Parker CB, Koch MA, Hogue CJR, Stoll BJ, Silver RM, Varner MW, Pinar MH, Coustan DR, Saade GR, Bukowski RK, Conway DL, Willinger M, Reddy UM, Goldenberg RL. Stillbirth, Inflammatory Markers, and Obesity: Results from the Stillbirth Collaborative Research Network. American Journal Of Perinatology 2018, 35: 1071-1078. PMID: 29609190, PMCID: PMC6436964, DOI: 10.1055/s-0038-1639340.Peer-Reviewed Original ResearchConceptsWhite blood cell countElevated white blood cell countBody mass indexBlood cell countSerum ferritin levelsC-reactive protein levelsNormal body mass indexMaternal serum ferritinInflammatory markersNormal-weight womenHistologic chorioamnionitisC-reactive proteinSerum ferritinLive birthsFerritin levelsCell countLogistic regression modelsWeight womenBMI categoriesCategories of BMIMaternal serum ferritin levelsStillbirth Collaborative Research NetworkPrepregnancy body mass indexElevated body mass indexLogistic regressionSmith–Lemli–Opitz Mutations in Unexplained Stillbirths
Gibbins KJ, Reddy UM, Saade GR, Goldenberg RL, Dudley DJ, Parker CB, Thorsten V, Pinar H, Bukowski R, Hogue CJ, Silver RM. Smith–Lemli–Opitz Mutations in Unexplained Stillbirths. American Journal Of Perinatology 2018, 35: 936-939. PMID: 29433144, PMCID: PMC6060008, DOI: 10.1055/s-0038-1626705.Peer-Reviewed Original ResearchConceptsUnexplained stillbirthLive birthsPopulation-based case-control studyCase-control studySmith-LemliAutosomal recessive syndromeObstetric complicationsHistologic featuresExon 3Placental tissueStillbirthRecessive syndromeDeoxyribonucleic acidStrong associationBidirectional sequencingDHCR7 mutationsCompound heterozygotesSyndromeCholesterol biosynthesisOpitz syndromeHomozygote frequencyBirthRepresentative sampleSLOS mutationsDHCR7Potentially Preventable Stillbirth in a Diverse U.S. Cohort
Page JM, Thorsten V, Reddy UM, Dudley DJ, Hogue CJR, Saade GR, Pinar H, Parker CB, Conway D, Stoll BJ, Coustan D, Bukowski R, Varner MW, Goldenberg RL, Gibbins K, Silver RM. Potentially Preventable Stillbirth in a Diverse U.S. Cohort. Obstetrics And Gynecology 2018, 131: 336-343. PMID: 29324601, PMCID: PMC5785410, DOI: 10.1097/aog.0000000000002421.Peer-Reviewed Original ResearchConceptsStillbirth Collaborative Research NetworkPreventable stillbirthsPlacental insufficiencyHypertensive disordersMultiple gestationsMedical complicationsPopulation-based case-control studyDiverse U.S. cohortSpontaneous preterm birthMedical record abstractionWeeks of gestationCases of stillbirthCase-control studyCollaborative research networksResearch NetworkStillbirth reductionPreterm laborPreterm birthPlacental pathologyRecord abstractionNonanomalous fetusesMaternal interviewsPostmortem examinationU.S. cohortStillbirth
2017
Altered fetal growth, placental abnormalities, and stillbirth
Bukowski R, Hansen NI, Pinar H, Willinger M, Reddy UM, Parker CB, Silver RM, Dudley DJ, Stoll BJ, Saade GR, Koch MA, Hogue C, Varner MW, Conway DL, Coustan D, Goldenberg RL, . Altered fetal growth, placental abnormalities, and stillbirth. PLOS ONE 2017, 12: e0182874. PMID: 28820889, PMCID: PMC5562325, DOI: 10.1371/journal.pone.0182874.Peer-Reviewed Original ResearchConceptsFetal growth abnormalitiesAltered fetal growthFetal growthLive birthsPlacental abnormalitiesPlacental findingsGrowth abnormalitiesImpaired placental functionSingleton live birthsCase-control studyCause of deathPatterns of associationSingleton stillbirthsPlacental examinationTerm stillbirthGestational ageRisk factorsPerinatal pathologistsPlacental functionClinical careStillbirthAbnormalitiesStandardized protocolBirthDeathDiagnostic Tests for Evaluation of Stillbirth
Page JM, Christiansen-Lindquist L, Thorsten V, Parker CB, Reddy UM, Dudley DJ, Saade GR, Coustan D, Hogue C, Conway D, Bukowski R, Pinar H, Heuser CC, Gibbins KJ, Goldenberg RL, Silver RM. Diagnostic Tests for Evaluation of Stillbirth. Obstetrics And Gynecology 2017, 129: 699-706. PMID: 28333795, DOI: 10.1097/aog.0000000000001937.Peer-Reviewed Original ResearchConceptsStillbirth Collaborative Research NetworkCause of deathAntiphospholipid antibodiesPlacental pathologyDiagnostic testsEvaluation of stillbirthMedical record abstractionPopulation-based studyCollaborative research networksDeath classification systemResearch NetworkRecord abstractionSyphilis serologyClinical presentationToxicology screenAntibody screenClinical historyMaternal interviewsStillbirthSecondary analysisGenetic testingUseful testBiospecimen collectionStandardized evaluationMost participantsRoute of Delivery in Women With Stillbirth
Boyle A, Preslar JP, Hogue CJ, Silver RM, Reddy UM, Goldenberg RL, Stoll BJ, Varner MW, Conway DL, Saade GR, Bukowski R, Dudley DJ. Route of Delivery in Women With Stillbirth. Obstetrics And Gynecology 2017, 129: 693-698. PMID: 28333794, PMCID: PMC5370197, DOI: 10.1097/aog.0000000000001935.Peer-Reviewed Original ResearchConceptsPrior cesarean deliveryCesarean deliveryObstetric indicationsSingleton stillbirthsUterine ruptureMulticenter case seriesRepeat cesarean deliveryRetrospective chart reviewInduction of laborWeeks of gestationRoute of deliveryMode of deliveryLabor inductionSecondary outcomesChart reviewIntrapartum stillbirthPrimary outcomeSpontaneous laborVaginal deliveryCase seriesMedical recordsTotal casesStillbirthWomenDelivery informationPharmacogenomics of 17‐alpha hydroxyprogesterone caproate for recurrent preterm birth: a case–control study
Manuck T, Watkins W, Esplin, Biggio J, Bukowski R, Parry S, Zhan H, Huang H, Andrews W, Saade G, Sadovsky Y, Reddy U, Ilekis J, Yandell M, Varner M, Jorde L, Research T. Pharmacogenomics of 17‐alpha hydroxyprogesterone caproate for recurrent preterm birth: a case–control study. BJOG An International Journal Of Obstetrics & Gynaecology 2017, 125: 343-350. PMID: 28139890, DOI: 10.1111/1471-0528.14485.Peer-Reviewed Original ResearchConceptsRecurrent preterm birthPreterm birthSuccessful prolongationDefinition ADefinition BSingleton spontaneous preterm birthSpontaneous preterm birthTertiary care centerCase-control studyWhole-exome sequencingUntreated pregnanciesGestational ageHydroxyprogesterone caproateSignificant prolongationPregnancyExome sequencingProlongationWomenPharmacogenetic genesBirthGene ontology pathwaysIntegrated DiscoveryOntology pathwaysNovel analytic approach
2016
Factor V Leiden, prothrombin G20210A, and methylene tetrahydrofolate reductase mutations and stillbirth: the Stillbirth Collaborative Research Network
Silver RM, Saade GR, Thorsten V, Parker CB, Reddy UM, Drews-Botsch C, Conway D, Coustan D, Dudley DJ, Bukowski R, Hogue C, Pinar H, Varner MW, Goldenberg R, Willinger M. Factor V Leiden, prothrombin G20210A, and methylene tetrahydrofolate reductase mutations and stillbirth: the Stillbirth Collaborative Research Network. American Journal Of Obstetrics And Gynecology 2016, 215: 468.e1-468.e17. PMID: 27131585, DOI: 10.1016/j.ajog.2016.04.026.Peer-Reviewed Original ResearchConceptsFactor V LeidenStillbirth Collaborative Research NetworkCase-control studyHeritable thrombophiliaV LeidenProthrombin G20210AFetal thrombophiliaOdds ratioPAI-1 4G/4G polymorphismPopulation-based case-control studyMaternal factor V LeidenHomozygous factor V Leiden mutationFactor V Leiden mutationEvaluation of stillbirthTetrahydrofolate reductase mutationOdds of stillbirthV Leiden mutationTetrahydrofolate reductase C677TCollaborative research networksReductase C677TResearch NetworkMaternal thrombophiliaThrombophilia markersSingleton pregnanciesIncreased odds
2015
Neonatal complications associated with use of fetal scalp electrode: a retrospective study
Kawakita T, Reddy U, Landy H, Iqbal, Huang C, Grantz K. Neonatal complications associated with use of fetal scalp electrode: a retrospective study. BJOG An International Journal Of Obstetrics & Gynaecology 2015, 123: 1797-1803. PMID: 26643181, PMCID: PMC4899296, DOI: 10.1111/1471-0528.13817.Peer-Reviewed Original ResearchConceptsFetal scalp electrodeVacuum-assisted vaginal deliveryVaginal deliveryOperative vaginal deliveryWeeks of gestationNeonatal complicationsScalp electrodesNeonatal morbidityForceps-assisted vaginal deliveryNon-operative vaginal deliveriesSecondary analysisPrelabour caesarean deliveryRetrospective cohort studyAssisted vaginal deliveryRisk of complicationsSafe Labor studyRisk of injuryCaesarean deliveryPregnancy complicationsCohort studySingleton deliveriesNeonatal risksRetrospective studyUnderlying indicationAbsolute riskThe phenotype of spontaneous preterm birth: application of a clinical phenotyping tool
Manuck TA, Esplin MS, Biggio J, Bukowski R, Parry S, Zhang H, Huang H, Varner MW, Andrews W, Saade G, Sadovsky Y, Reddy UM, Ilekis J, Research E. The phenotype of spontaneous preterm birth: application of a clinical phenotyping tool. American Journal Of Obstetrics And Gynecology 2015, 212: 487.e1-487.e11. PMID: 25687564, PMCID: PMC4456184, DOI: 10.1016/j.ajog.2015.02.010.Peer-Reviewed Original ResearchConceptsSpontaneous preterm birthEarly spontaneous preterm birthInfection/inflammationDecidual hemorrhageGestational ageCervical insufficiencyPreterm birthWeeks' gestationPlacental dysfunctionWhite womenMaternal stressSingleton spontaneous preterm birthDelivery gestational ageFinal common pathwayAfrican American womenMaternal comorbiditiesPremature ruptureProspective studyPlanned analysisUterine distentionClinical dataMultiple possible causesGestationHemorrhageComprehensive classification system
2014
Fetal Growth and Risk of Stillbirth: A Population-Based Case–Control Study
Bukowski R, Hansen NI, Willinger M, Reddy UM, Parker CB, Pinar H, Silver RM, Dudley DJ, Stoll BJ, Saade GR, Koch MA, Rowland Hogue CJ, Varner MW, Conway DL, Coustan D, Goldenberg RL, . Fetal Growth and Risk of Stillbirth: A Population-Based Case–Control Study. PLOS Medicine 2014, 11: e1001633. PMID: 24755550, PMCID: PMC3995658, DOI: 10.1371/journal.pmed.1001633.Peer-Reviewed Original ResearchConceptsRisk of stillbirthCase-control studyFetal growthGestational ageLive birthsSevere SGAPopulation-based case-control studyStillbirth prevention strategiesExcessive fetal growthSingleton live birthsFetal growth abnormalitiesNormal fetal growthStillbirth risk factorsGestational age estimatesTiming of deathLGA pregnanciesSingleton stillbirthsIndividualized normsTerm pregnancyAssociation Between Stillbirth and Illicit Drug Use and Smoking During Pregnancy
Varner MW, Silver RM, Hogue C, Willinger M, Parker CB, Thorsten VR, Goldenberg RL, Saade GR, Dudley DJ, Coustan D, Stoll B, Bukowski R, Koch MA, Conway D, Pinar H, Reddy UM. Association Between Stillbirth and Illicit Drug Use and Smoking During Pregnancy. Obstetrics And Gynecology 2014, 123: 113-125. PMID: 24463671, PMCID: PMC3931517, DOI: 10.1097/aog.0000000000000052.Peer-Reviewed Original ResearchConceptsIllicit drug useCotinine assaysDrug useMaternal serum cotinine levelStillbirth Collaborative Research NetworkCannabis useSelf-reported smoking historyRisk of stillbirthLive-birth deliveriesSerum cotinine levelsCase-control studySecond-hand smokeUmbilical cord samplesIllicit drugsDose-response relationshipStillbirth deliverySmoking historyCotinine levelsMaternal serumSerum cotinineBirth deliveryCord homogenateSmoking useCord samplesStillbirth
2013
Stillbirth: Knowledge and Practice among U.S. Obstetrician-Gynecologists
Farrow V, McClure E, Reddy U, Fretts R, Schulkin J, Goldenberg R. Stillbirth: Knowledge and Practice among U.S. Obstetrician-Gynecologists. American Journal Of Perinatology 2013, 30: 813-820. PMID: 23329563, DOI: 10.1055/s-0032-1333407.Peer-Reviewed Original ResearchConceptsRisk factorsStandardized order sheetsU.S. Obstetrician-GynecologistsCauses of stillbirthElevated α-fetoproteinAdvanced maternal ageCause of deathIllicit drug useOBGYN departmentsStillbirth causesStillbirth evaluationStillbirth managementPercent of respondentsMultiple gestationsCigarette smokingMaternal ageObstetrician-GynecologistsAmerican CollegeStillbirthDrug useOrder sheetEffective interventionsMost hospitalsΑ-fetoproteinGrand rounds
2011
The Stillbirth Collaborative Research Network Postmortem Examination Protocol
Pinar H, Koch M, Hawkins H, Heim-Hall J, Abramowsky C, Thorsten V, Carpenter M, Zhou H, Reddy U. The Stillbirth Collaborative Research Network Postmortem Examination Protocol. American Journal Of Perinatology 2011, 29: 187-202. PMID: 21815127, PMCID: PMC4320124, DOI: 10.1055/s-0031-1284228.Peer-Reviewed Original ResearchMeSH KeywordsAutopsyFemaleHumansNational Institute of Child Health and Human Development (U.S.)PregnancyStillbirthUnited StatesConceptsPostmortem examinationStillborn infantsEunice Kennedy Shriver National InstitutePerinatal postmortem examinationCauses of stillbirthTertiary care centerPopulation-based studyCare centerPerinatal pathologistsMedical CenterChild healthStillbirthExamination protocolNational InstituteStandardized approachInfantsResearch NetworkWomenTotalPM protocolPathogenesisCliniciansNICHDCenterNovel testingStillbirth Collaborative Research Network: design, methods and recruitment experience
Parker CB, Hogue CJ, Koch MA, Willinger M, Reddy UM, Thorsten VR, Dudley DJ, Silver RM, Coustan D, Saade GR, Conway D, Varner MW, Stoll B, Pinar H, Bukowski R, Carpenter M, Goldenberg R, Network F. Stillbirth Collaborative Research Network: design, methods and recruitment experience. Paediatric And Perinatal Epidemiology 2011, 25: 425-435. PMID: 21819424, PMCID: PMC3665402, DOI: 10.1111/j.1365-3016.2011.01218.x.Peer-Reviewed Original ResearchConceptsStillbirth Collaborative Research NetworkPost-mortem examinationMaternal interviewsPlacental pathological examinationMedical record abstractionCase-control studyCase-control study participantsTime of deliveryHigher consent ratesGeographical catchment areasRecruitment experienceRecruitment hospitalChart abstractionProspective enrollmentPlacental pathologyRecord abstractionWeeks' gestationPathological examinationRisk factorsConsent ratesLivebirthsStillbirthClinical sitesStudy participantsAdditional surveillance