Featured Publications
Cat Scratch Disease: 9 Years of Experience at a Pediatric Center
Amin O, Rostad CA, Gonzalez M, Rostad BS, Caltharp S, Quincer E, Betke BA, Gottdenker NL, Wilson JJ, Shane AL, Elmontser M, Camacho-Gonzalez A, Senior T, Smith O, Anderson EJ, Yildirim I. Cat Scratch Disease: 9 Years of Experience at a Pediatric Center. Open Forum Infectious Diseases 2022, 9: ofac426. PMID: 36072697, PMCID: PMC9439574, DOI: 10.1093/ofid/ofac426.Peer-Reviewed Original ResearchCat-scratch diseaseClinical featuresAtypical clinical manifestationsPediatric hospital systemMajority of casesPediatric centersAtypical presentationCanine exposureCat exposureMedian ageRegional lymphadenopathyClinical manifestationsHepatic microabscessesPhysical examinationScratch diseaseMedical recordsPolymerase chain reactionRisk factorsSchool-aged childrenRetrospective analysisCytopathological resultsPatient careLymphadenopathyRadiographic imagingHospital system
2023
Incidence of cytomegalovirus DNAemia in pediatric kidney, liver, and heart transplant recipients: Efficacy and risk factors associated with failure of weight‐based dosed valganciclovir prophylaxis
Liverman R, Serluco A, Nance G, George R, Rodriguez D, Deshpande S, Mao C, Garro R, Yildirim I. Incidence of cytomegalovirus DNAemia in pediatric kidney, liver, and heart transplant recipients: Efficacy and risk factors associated with failure of weight‐based dosed valganciclovir prophylaxis. Pediatric Transplantation 2023, 27: e14493. PMID: 36945819, DOI: 10.1111/petr.14493.Peer-Reviewed Original ResearchConceptsSolid organ transplant recipientsPediatric solid organ transplant recipientsCytomegalovirus DNAemiaValganciclovir prophylaxisDose reductionRisk factorsTransplant recipientsImpact of dose adjustmentsRisk factors associated with failureFactors associated with failureOrgan transplant recipientsHeart transplant recipientsIndependent risk factorRetrospective cohort studyAssociated with morbidityCMV DNAemiaCytomegalovirus eventsValganciclovir dosingImmunosuppressive therapyDose adjustmentYounger age groupsDNAemiaValganciclovirRisk stratificationAdverse events
2021
Bloodstream Infections in Children With Sickle Cell Disease: 2010-2019.
Yee ME, Lai KW, Bakshi N, Grossman JK, Jaggi P, Mallis A, Wang YF, Jerris RC, Lane PA, Yildirim I. Bloodstream Infections in Children With Sickle Cell Disease: 2010-2019. Pediatrics 2021, 149 PMID: 34913059, PMCID: PMC8959248, DOI: 10.1542/peds.2021-051892.Peer-Reviewed Original ResearchConceptsSickle cell diseaseBloodstream infectionsBlood culturesSickle cell anemia genotypesRetrospective cohort studyInvasive bacterial infectionsMultivariate logistic regressionConfidence intervalsAverage incidence rateSpectrum of pathogensAntibiotic prophylaxisEligible patientsFunctional aspleniaBSI episodesCohort studyChronic transfusionMedian ageAnnual incidenceOverall incidenceRisk factorsIncidence rateCell diseaseEmpirical treatmentBordetella holmesiiCommon pathogens
2020
Urinary Tract Infections With Extended-spectrum-β-lactamase-producing Bacteria: Case-control Study.
Amin O, Prestel C, Gonzalez MD, Lyon T, Shane A, Jaggi P, Tippett A, Yildirim I. Urinary Tract Infections With Extended-spectrum-β-lactamase-producing Bacteria: Case-control Study. The Pediatric Infectious Disease Journal 2020, 39: 211-216. PMID: 32032306, DOI: 10.1097/inf.0000000000002531.Peer-Reviewed Original ResearchConceptsUrinary tract infectionESBL-producing bacteriaCase-control studyRisk factorsTract infectionsPrior intensive care unit admissionIntensive care unit admissionPediatric urinary tract infectionCause of UTIClinical signs/symptomsCare unit admissionIndependent risk factorYear of diagnosisΒ-lactamase-producing bacteriaSigns/symptomsCommon bacterial infectionsSpectrum β-lactamasesRational antimicrobial useESBL casesESBL-UTIUnit admissionUnderlying comorbiditiesPrior hospitalizationEmpirical therapyPediatric patientsWho is at risk of 13-valent conjugated pneumococcal vaccine failure?
Yildirim M, Keskinocak P, Pelton S, Pickering L, Yildirim I. Who is at risk of 13-valent conjugated pneumococcal vaccine failure? Vaccine 2020, 38: 1671-1677. PMID: 31974018, DOI: 10.1016/j.vaccine.2019.12.060.Peer-Reviewed Original ResearchConceptsInvasive pneumococcal diseaseVaccine failureIPD casesVaccine serotypesDiagnosis of IPDHigh vaccine coverage ratesPneumococcal conjugate vaccineVaccine coverage ratesUnderlying risk factorsYears of ageMonths of agePneumococcal pneumoniaImmunization PracticesVaccine scheduleConjugate vaccinePneumococcal diseasePrimary dosesClinical presentationImmunization scheduleSerotype 19ACourse of immunisationRisk factorsComorbiditiesStudy periodPassive surveillance
2019
Cryptosporidiosis among solid organ transplant recipient attendees at a summer camp
McAteer J, Jernigan S, Mao C, Gonzalez MD, Watson RJ, Liverman R, Angelo M, M. H, Shane A, Yildirim I. Cryptosporidiosis among solid organ transplant recipient attendees at a summer camp. Pediatric Transplantation 2019, 24: e13649. PMID: 31885132, DOI: 10.1111/petr.13649.Peer-Reviewed Original ResearchConceptsTransplant recipientsSolid organ transplant recipientsKidney transplant recipientsRetrospective cohort studyOrgan transplant recipientsPediatric transplant recipientsOverall attack rateAcute rejection eventsLong-term interventionsImmunosuppressive therapySymptom durationCohort studyRisk factorsNotable burdenStool specimensCryptosporidiosis infectionEtiologic agentRejection eventsAttack rateFurther outbreaksInfectionRecipientsCryptosporidium hominisCryptosporidiosisOutbreak3162 Colonization of Pregnant Women with Group B streptococcus in Latin America and Infant Outcomes
HogenEsch E, Haddad L, Yildirim I, Omer S. 3162 Colonization of Pregnant Women with Group B streptococcus in Latin America and Infant Outcomes. Journal Of Clinical And Translational Science 2019, 3: 37-38. PMCID: PMC6808231, DOI: 10.1017/cts.2019.92.Peer-Reviewed Original ResearchMaternal GBS colonizationGBS colonizationPreterm birthCesarean sectionPregnant womenRisk factorsGBS diseasePerinatal outcomesMaternal colonizationPrevalence ratesExact testSignificant associationMultiple logistic regression modelBurden of stillbirthsGBS colonization statusGBS-negative mothersGBS-positive mothersMaternal GBS carriageNeonatal GBS diseasePerinatal health indicatorsSpecific perinatal outcomesIncidence of sepsisClinical risk factorsWeeks of gestationGroup B streptococci
2018
Necrotizing fasciitis caused by Mucor indicus in a pediatric bone marrow transplant recipient
Bloch D, Gonzalez MD, Haight A, Abramowsky C, Yildirim I. Necrotizing fasciitis caused by Mucor indicus in a pediatric bone marrow transplant recipient. Pediatric Transplantation 2018, 22: e13294. PMID: 30246483, PMCID: PMC6460914, DOI: 10.1111/petr.13294.Peer-Reviewed Original ResearchConceptsPediatric bone marrow transplant recipientsBone marrow transplant recipientsMarrow transplant recipientsLiposomal amphotericin BSubcutaneous cellular tissueMultiple debridementsTransplant recipientsCase reportRare fungal organismRisk factorsAmphotericin BSusceptibility testingFasciitisFungal organismsAnaerobic bacteria