2024
Comprehensive secondary analysis of thrombotic events in pediatric patients receiving extracorporeal membrane oxygenation: A prospective cohort study.
Hughes T, Treffalls R, Koek W, Dalton H, Karam O, Meyer A. Comprehensive secondary analysis of thrombotic events in pediatric patients receiving extracorporeal membrane oxygenation: A prospective cohort study. Perfusion 2024, 2676591241289358. PMID: 39352407, DOI: 10.1177/02676591241289358.Peer-Reviewed Original ResearchExtracorporeal membrane oxygenationMultiple thrombotic eventsThrombotic eventsMembrane oxygenationPediatric extracorporeal membrane oxygenationMulti-center prospective studyEvaluate predictive factorsDays of therapyPlatelet transfusion volumeProspective cohort studyTransfusion volumeBinomial regressionPediatric patientsProlonged ECMOPlatelet volumePredictive factorsProspective studyUnivariate analysisAnti-XaCohort studySeverity scoreHigh riskPatientsAntithrombin IIIScoring tool
2023
Stuck in the Dark: No Association between Light, Sound, and Delirium in the PICU
Greenfield K, Karam O, O'Meara A. Stuck in the Dark: No Association between Light, Sound, and Delirium in the PICU. Journal Of Pediatric Intensive Care 2023 DOI: 10.1055/s-0043-1770081.Peer-Reviewed Original ResearchPediatric intensive care unitDevelopment of deliriumAssociated with deliriumCornell Assessment of Pediatric DeliriumPediatric deliriumPediatric intensive care unit patientsIntensive care unitEtiology of deliriumModifiable risk factorsNo significant associationPresence of deliriumTreatment strategiesCare unitIndividual patientsRisk factorsCritical illnessStudy daysPatientsOpiate infusionsSignificant associationCornell AssessmentYounger ageDelirium prevalenceDeliriumNeurological diagnosis
2022
Anticoagulation strategies and recurrence of venous thromboembolic events in patients with sickle cell disease: a systematic review and meta-analysis
El-Amin N, Iness A, Cyrus JW, Sisler I, Karam O. Anticoagulation strategies and recurrence of venous thromboembolic events in patients with sickle cell disease: a systematic review and meta-analysis. Annals Of Hematology 2022, 101: 1931-1940. PMID: 35895101, DOI: 10.1007/s00277-022-04901-z.Peer-Reviewed Original ResearchConceptsVenous thromboembolic eventsSickle cell diseaseCell diseaseThromboembolic eventsPulmonary embolismSystematic reviewDevelopment of bleedingOverall bleeding rateVenous thrombotic eventsRisk of mortalityProgression of thrombusAnticoagulant classDifferent anticoagulationAnticoagulation strategiesOverall recurrenceOverall mortalityThrombotic eventsAdverse outcomesPatient populationBleeding rateObservational studyOutcome measuresAppropriate managementPatientsRecurrenceEffect of Platelet Transfusions on Extracorporeal Life Support Oxygenator’s Function
Chegondi M, Vijayakumar N, Badheka A, Karam O. Effect of Platelet Transfusions on Extracorporeal Life Support Oxygenator’s Function. Frontiers In Pediatrics 2022, 10: 826477. PMID: 35321010, PMCID: PMC8936087, DOI: 10.3389/fped.2022.826477.Peer-Reviewed Original ResearchExtracorporeal membrane oxygenationPediatric intensive care unitPlatelet transfusionsOxygenator functionECMO supportVeno-arterial extracorporeal membrane oxygenationOnly independent factorSubgroup of patientsIntensive care unitAnticoagulation strategiesCommon complicationMembrane oxygenationCare unitRetrospective studyMain complicationsLowest quartileTransfusionIndependent factorsMmHgECMO oxygenatorROC curveComplicationsPatientsChildrenRegression models
2021
Accuracy of Bioimpedance Modalities for Fluid Assessment in Hemodialysis Patients: A Randomized Observational Study
John J, Division of Pediatric Nephrology C, Gipson G, King C, Bunchman T, Karam O, Division of Nephrology V, Division of Pediatric Critical Care Medicine C. Accuracy of Bioimpedance Modalities for Fluid Assessment in Hemodialysis Patients: A Randomized Observational Study. Nephrology - Open Journal 2021, 6: 1-7. DOI: 10.17140/npoj-6-124.Peer-Reviewed Original ResearchEnd-stage renal disease patientsRenal disease patientsTotal body water volumeDisease patientsObservational studyFluid volumeBody weightMethods Prospective observational studyBody water volumeProspective observational studyTertiary care centerAdult patientsFluid overloadHemodialysis patientsIll patientsBland-Altman analysisCare centerFluid assessmentResults TwentyPatientsBioimpedance analysisStudy assessmentBioimpedance spectroscopyDialysisBioimpedanceAirway microbiome dynamics and relationship to ventilator‐associated infection in intubated pediatric patients
Tarquinio KM, Karsies T, Shein SL, Beardsley A, Khemani R, Schwarz A, Smith L, Flori H, Karam O, Cao Q, Haider Z, Smirnova E, Serrano MG, Buck GA, Willson DF. Airway microbiome dynamics and relationship to ventilator‐associated infection in intubated pediatric patients. Pediatric Pulmonology 2021, 57: 508-518. PMID: 34811963, PMCID: PMC8809006, DOI: 10.1002/ppul.25769.Peer-Reviewed Original ResearchConceptsVentilator-associated infectionDays of intubationAirway microbiomeSerial tracheal aspirate samplesPediatric intensive care unitIntensive care unitIntubated pediatric patientsTracheal aspirate samplesTracheal microbiomePediatric patientsCare unitClinical parametersIntubation periodClinical variablesAntibiotic treatmentVentilated subjectsAspirate samplesInfection scoreMedian numberSubject demographicsPorphyromonadaceae familyMicrobiome patternsIntubationVeillonella atypicaPatientsTransfusion management for children supported by extracorporeal membrane oxygenation
Karam O, Nellis ME. Transfusion management for children supported by extracorporeal membrane oxygenation. Transfusion 2021, 61: 660-664. PMID: 33491189, DOI: 10.1111/trf.16272.Peer-Reviewed Original Research
2020
Ketamine Boluses Decrease Intracranial Pressure and Improve Cerebral Perfusion Pressure in Patients with Severe Traumatic Brain Injury
Dengler B, Karam O, Barthol C, Hafeez S. Ketamine Boluses Decrease Intracranial Pressure and Improve Cerebral Perfusion Pressure in Patients with Severe Traumatic Brain Injury. Neurosurgery 2020, 67 DOI: 10.1093/neuros/nyaa447_450.Peer-Reviewed Original ResearchBrighter Days May Be Ahead: Continuous Measurement of Pediatric Intensive Care Unit Light and Sound
Greenfield KD, Karam O, O'Meara A. Brighter Days May Be Ahead: Continuous Measurement of Pediatric Intensive Care Unit Light and Sound. Frontiers In Pediatrics 2020, 8: 590715. PMID: 33194924, PMCID: PMC7649178, DOI: 10.3389/fped.2020.590715.Peer-Reviewed Original ResearchPediatric intensive care unitCourse of admissionIll childrenTertiary care pediatric intensive care unitProspective observational cohort studyPost-intensive care syndromeObservational cohort studyIntensive care unitModifiable environmental factorsMedian illuminancePatients 0Cardiovascular supportCohort studyCare unitClinical effectsPatientsMedian light levelsSleep/AdmissionSound levelsMedian sound levelChildrenUnit lightHoursLevelsAnti-Xa versus time-guided anticoagulation strategies in extracorporeal membrane oxygenation: a systematic review and meta-analysis
Willems A, Roeleveld PP, Labarinas S, Cyrus JW, Muszynski JA, Nellis ME, Karam O. Anti-Xa versus time-guided anticoagulation strategies in extracorporeal membrane oxygenation: a systematic review and meta-analysis. Perfusion 2020, 36: 501-512. PMID: 32862767, PMCID: PMC8216320, DOI: 10.1177/0267659120952982.Peer-Reviewed Original ResearchConceptsAnticoagulation strategiesMortality rateThrombotic eventsObservational studySystematic reviewProportion of bleedingType of ECMOExtracorporeal membrane oxygenationMultiple electronic databasesLower mortality rateMembrane oxygenationPatientsElectronic databasesECMOThrombosisSignificant differencesXaBleedingReviewMortalityStudyPreoperative erythropoietin within a patient blood management program decreases both blood transfusion and postoperative anemia: a prospective observational study
Biboulet P, Motais C, Pencole M, Karam O, Dangelser G, Smilevitch P, Maissiat G, Capdevila X, Bringuier S. Preoperative erythropoietin within a patient blood management program decreases both blood transfusion and postoperative anemia: a prospective observational study. Transfusion 2020, 60: 1732-1740. PMID: 32681743, DOI: 10.1111/trf.15900.Peer-Reviewed Original ResearchConceptsPatient blood management programBlood management programBlood transfusionPostoperative anemiaPreoperative erythropoietinObservational studyElective primary hipProspective observational studyMajor thromboembolicPreoperative hemoglobinCardiovascular eventsPreoperative treatmentTransfusion rateHospital dischargePostoperative infusionPostoperative periodIntraoperative administrationMajor complicationsTranexamic acidPrimary hipKnee arthroplastySingle hospitalTransfusionPatientsSpecific efficacyPleural Effusions After Congenital Cardiac Surgery Requiring Readmission: A Systematic Review and Meta-analysis
Hughes A, Carter K, Cyrus J, Karam O. Pleural Effusions After Congenital Cardiac Surgery Requiring Readmission: A Systematic Review and Meta-analysis. Pediatric Cardiology 2020, 41: 1145-1152. PMID: 32424719, DOI: 10.1007/s00246-020-02365-4.Peer-Reviewed Original ResearchConceptsCongenital heart diseaseSingle-ventricle palliationPleural effusionRisk factorsPost-pericardiotomy syndromeImproved risk stratificationSingle ventricle physiologySubpopulation of patientsAdditional invasive proceduresRandom-effects modelFull-text articlesBiventricular physiologyHospital dischargeSurgical patientsCardiopulmonary bypassRisk stratificationPatient populationEarly recognitionHeart diseaseOverall prevalenceSurgical techniqueFallot patientsInvasive proceduresReadmissionPatients
2019
Transfusion in children with acute respiratory distress syndrome.
François T, Emeriaud G, Karam O, Tucci M. Transfusion in children with acute respiratory distress syndrome. Annals Of Translational Medicine 2019, 7: 511. PMID: 31728364, PMCID: PMC6828792, DOI: 10.21037/atm.2019.08.28.Peer-Reviewed Original ResearchAcute respiratory distress syndromeRespiratory distress syndromeSevere PARDSDistress syndromeRestrictive red blood cell transfusion strategyRed blood cell transfusion strategyLow oxygen deliveryPossible beneficial effectsProphylactic transfusionStable patientsTransfusion strategyPediatric patientsRBC transfusionHemoglobin levelsLarge trialsAppropriate indicationsPatient populationRecent guidelinesFrequent treatmentTransfusionOxygen deliveryBeneficial effectsHemostatic productsPotential deleterious impactPatientsTransfusion Management in Pediatric Oncology Patients
Nellis ME, Goel R, Karam O. Transfusion Management in Pediatric Oncology Patients. Hematology/Oncology Clinics Of North America 2019, 33: 903-913. PMID: 31466612, DOI: 10.1016/j.hoc.2019.05.011.Peer-Reviewed Original ResearchConceptsPediatric oncology patientsOncology patientsBlood productsStrong evidence-based guidelinesRestrictive transfusion strategyEvidence-based guidelinesNumerous transfusionsPlasma transfusionRed blood cellsTransfusion strategyTransfusion managementPatient populationBlood cellsTransfusionPatientsMorbidity
2018
Prognostic Evaluation of Mortality after Pediatric Resuscitation Assisted by Extracorporeal Life Support
De Mul A, Nguyen DA, Doell C, Perez MH, Cannizzaro V, Karam O. Prognostic Evaluation of Mortality after Pediatric Resuscitation Assisted by Extracorporeal Life Support. Journal Of Pediatric Intensive Care 2018, 08: 057-063. PMID: 31093456, PMCID: PMC6517051, DOI: 10.1055/s-0038-1667012.Peer-Reviewed Original ResearchExtracorporeal life supportECLS initiationCPR durationClinical outcomesCardiopulmonary resuscitationPediatric intensive care unitLife supportReceiver-operating characteristic curveIntensive care unitPositive predictive valueActive resuscitationMedian agePrognostic factorsCare unitCardiac patientsPrognostic evaluationRetrospective analysisMortality ratePredictive valueSurvival ratePatientsStudy settingMortalityECPRCharacteristic curve
2017
Perceived changes in behavior and values after a red blood cell transfusion
Broccolo M, Favez N, Karam O. Perceived changes in behavior and values after a red blood cell transfusion. International Journal Of Clinical Transfusion Medicine 2017, 6: 1-5. DOI: 10.2147/ijctm.s155338.Peer-Reviewed Original ResearchOutcomes Related to the Use of Frozen Plasma or Pooled Solvent/Detergent-Treated Plasma in Critically Ill Children*
Camazine MN, Karam O, Colvin R, Leteurtre S, Demaret P, Tucci M, Muszynski JA, Stanworth S, Spinella PC. Outcomes Related to the Use of Frozen Plasma or Pooled Solvent/Detergent-Treated Plasma in Critically Ill Children*. Pediatric Critical Care Medicine 2017, 18: e215-e223. PMID: 28350560, DOI: 10.1097/pcc.0000000000001149.Peer-Reviewed Original ResearchConceptsSolvent detergent plasmaPlasma 24 hoursICU mortalityIll childrenPlasma transfusionStudy groupHours groupPretransfusion international normalized ratioSolvent/detergent-treated plasmaCritically Ill ChildrenInternational normalized ratioHypothesis-generating dataMultivariable logistic regressionIllness scoresImproved survivalMedian ageAdjusted analysisNormalized ratioPrimary indicationIndependent associationFrozen plasmaObservational studyPlasma useLactate valuesPatientsFactors influencing plasma transfusion practices in paediatric intensive care units around the world
Karam O, Demaret P, Duhamel A, Shefler A, Spinella PC, Tucci M, Leteurtre S, Stanworth SJ, investigators T. Factors influencing plasma transfusion practices in paediatric intensive care units around the world. Vox Sanguinis 2017, 112: 140-149. PMID: 28176380, DOI: 10.1111/vox.12490.Peer-Reviewed Original ResearchConceptsPlasma transfusion practicesPlasma transfusionTransfusion practiceCoagulation testsPediatric intensive care unitInternational pediatric studiesLocal transfusion serviceAbnormal coagulation testsIntensive care unitEfficacy of transfusionSignificant relevant factorTransfusion policyTransfusion rateCare unitAppropriate indicationsPediatric studiesFrequent treatmentTransfusionResponse rateTransfusion servicesLocal investigatorsPatientsCenter characteristicsWide variationBleedingHypoglycemic relapse in term infants treated with glucose infusion
Sternberg J, Pfister R, Karam O. Hypoglycemic relapse in term infants treated with glucose infusion. Journal Of Clinical Neonatology 2017, 6: 163-167. DOI: 10.4103/jcn.jcn_10_17.Peer-Reviewed Original ResearchLow birth weightGlucose infusionBirth weightSingle-center retrospective studyProportion of infantsMain risk factorsTerm infantsConsecutive patientsNeonatal hypoglycemiaTerm newbornsGestational ageRetrospective studyRisk infantsRisk factorsMild severityRelapseInfusionProgressive weaningInfantsHypoglycemiaNewbornsSmall proportionLittle evidenceLevel 3Patients
2016
Are Scores Reliable in Predicting the Need for Surgery and Mortality in Necrotizing Enterocolitis?
Arni D, Karam O, Vidal I, Rimensberger PC, Hanquinet S, Wildhaber BE. Are Scores Reliable in Predicting the Need for Surgery and Mortality in Necrotizing Enterocolitis? European Journal Of Pediatric Surgery 2016, 27: 330-335. PMID: 27706524, DOI: 10.1055/s-0036-1593382.Peer-Reviewed Original ResearchConceptsStage IIBell stage IINEC stage IIManagement of childrenNecrotizing enterocolitisPatient cohortSingle institutionClinical usefulnessNEC scoreRetrospective analysisStage IIIAcuity scoresSurgeryPatientsMortalityKappa statisticsEnterocolitisScoresCohortOutcomesDifferent scoresChildrenKappa index