2021
Post-traumatic seizures following pediatric traumatic brain injury
Elsamadicy AA, Koo AB, David WB, Lee V, Zogg CK, Kundishora AJ, Hong C, Reeves BC, Sarkozy M, Kahle KT, DiLuna M. Post-traumatic seizures following pediatric traumatic brain injury. Clinical Neurology And Neurosurgery 2021, 203: 106556. PMID: 33636505, DOI: 10.1016/j.clineuro.2021.106556.Peer-Reviewed Original ResearchConceptsLoss of consciousnessTraumatic brain injuryPost-traumatic seizuresSeizure developmentBrain injuryRisk factorsPre-existing medical comorbiditiesPediatric traumatic brain injuryClinical risk factorsDevelopment of seizuresRate of seizuresDecrease healthcare costsEtiology of injuryType of injuryLogistic regression analysisQuality of careHospital complicationsMedical comorbiditiesNeurological complicationsPediatric patientsTBI patientsGreater proportionNinth RevisionSubarachnoid hemorrhageSecondary diagnosis
2020
Risk Factors for the Development of Post-Traumatic Hydrocephalus in Children
Elsamadicy AA, Koo AB, Lee V, David WB, Zogg CK, Kundishora AJ, Hong CS, DeSpenza T, Reeve BC, DiLuna M, Kahle KT. Risk Factors for the Development of Post-Traumatic Hydrocephalus in Children. World Neurosurgery 2020, 141: e105-e111. PMID: 32389871, PMCID: PMC7484270, DOI: 10.1016/j.wneu.2020.04.216.Peer-Reviewed Original ResearchConceptsTraumatic brain injuryRisk factorsBrain injuryNationwide Emergency Department Sample databasePost-traumatic hydrocephalusClinical risk factorsDevelopment of hydrocephalusNeurologic complicationsRespiratory complicationsPediatric patientsHydrocephalus developmentNinth RevisionSubarachnoid hemorrhageEmergency departmentSecondary diagnosisPrimary diagnosisSubdural hemorrhageClinical ModificationInternational ClassificationHydrocephalusHemorrhagePatientsBaseline returnSample databaseAge 6Thirty-Day Nonindex Readmissions and Clinical Outcomes After Cardiac Surgery
Hirji SA, Percy ED, Zogg CK, Vaduganathan M, Kiehm S, Pelletier M, Kaneko T. Thirty-Day Nonindex Readmissions and Clinical Outcomes After Cardiac Surgery. The Annals Of Thoracic Surgery 2020, 110: 484-491. PMID: 31972128, PMCID: PMC7382395, DOI: 10.1016/j.athoracsur.2019.11.042.Peer-Reviewed Original ResearchConceptsSurgical aortic valve replacementNonindex readmissionsCardiac surgeryNonindex hospitalNonindex hospital readmissionsCoronary artery bypassNational Readmission DatabaseAortic valve replacementCardiac surgery patientsMajor cardiac surgeryPatient risk profileHigh-volume centersUS adult patientsRegionalization of careFragmentation of careComorbidity burdenHospital mortalityIndex readmissionArtery bypassInitial hospitalizationAdult patientsSurgery patientsValve replacementHospital readmissionIndependent predictors
2019
Impact of Affordable Care Act–related insurance expansion policies on mortality and access to post-discharge care for trauma patients
Scott JW, Neiman PU, Uribe-Leitz T, Scott KW, Zogg CK, Salim A, Haider AH. Impact of Affordable Care Act–related insurance expansion policies on mortality and access to post-discharge care for trauma patients. Journal Of Trauma And Acute Care Surgery 2019, 86: 196-205. PMID: 30694984, DOI: 10.1097/ta.0000000000002117.Peer-Reviewed Original ResearchConceptsPost-discharge careTrauma patientsInpatient mortalityPost-acute careAffordable Care ActCoverage expansion policiesUninsured ratePost-acute care facilitiesState-level Medicaid expansionMedicaid expansionNational Trauma Data BankPolicy-associated changesAdult trauma patientsTrauma Data BankPost-acute servicesUninsured trauma patientsCare ActHome health servicesInsurance coverage expansionCoverage expansionPost-policy periodPatients 18Discharge dispositionPatient demographicsInjury characteristics
2018
Patient Presentations in Outpatient Settings
Zogg CK, Haring RS, Xu L, Canner JK, Ottesen TD, Salim A, Haider AH, Schneider EB. Patient Presentations in Outpatient Settings. Epidemiology 2018, 29: 885-894. PMID: 30063541, PMCID: PMC6167152, DOI: 10.1097/ede.0000000000000900.Peer-Reviewed Original ResearchConceptsInjury-specific factorsOutpatient settingHead traumaTrauma patientsEmergency departmentIndex outpatient visitAmbulatory care useHead trauma patientsEmergency department careOutpatient presentationClinic visitsIndex presentationOutpatient visitsOutpatient burdenCare useOutpatient casesIncidence ratePatient presentationCommercial ClaimsTrauma diagnosisSubsequent visitsAnnual burdenTrauma trendsDisease controlPatientsImpact of Affordable Care Act Insurance Expansion on Pre-Hospital Access to Care: Changes in Adult Perforated Appendix Admission Rates after Medicaid Expansion and the Dependent Coverage Provision
Zogg CK, Scott JW, Bhulani N, Gluck AR, Curfman GD, Davis KA, Dimick JB, Haider AH. Impact of Affordable Care Act Insurance Expansion on Pre-Hospital Access to Care: Changes in Adult Perforated Appendix Admission Rates after Medicaid Expansion and the Dependent Coverage Provision. Journal Of The American College Of Surgeons 2018, 228: 29-43.e1. PMID: 30359835, DOI: 10.1016/j.jamcollsurg.2018.09.022.Peer-Reviewed Original ResearchConceptsMedicaid expansionAffordable Care ActAdmission ratesPerforation rateInsurance coverageAffordable Care Act's insurance expansionInsurance expansionYoung adultsAcute surgical careDependent coverage provisionBetter patient outcomesFederal poverty levelRace/ethnicityAcute appendicitisHospitalized adultsAcute careParents' insuranceInpatient claimsPatient outcomesACA's impactSurgical careRisk populationsNonexpansion statesPrivileged patientsAge 26Insurance Status Biases Trauma-system Utilization and Appropriate Interfacility Transfer
Zogg CK, Schuster KM, Maung AA, Davis KA. Insurance Status Biases Trauma-system Utilization and Appropriate Interfacility Transfer. Annals Of Surgery 2018, 268: 681-689. PMID: 30004929, DOI: 10.1097/sla.0000000000002954.Peer-Reviewed Original ResearchConceptsNTC patientsMajor injuriesOlder adult trauma patientsNationwide Emergency Department SampleOptimal trauma careAdult trauma patientsEmergency department admissionsEmergency Department SampleTrauma center careTransfer of patientsComplex traumatic injuriesMultilevel logistic regressionTrauma patientsDepartment admissionsHigh morbidityTC careDirect admissionInsurance statusInterfacility transferUninsured patientsTrauma careTraumatic injuryOutcome measuresTrauma systemCenter careThe Cost of Complications Following Major Resection of Malignant Neoplasia
Zogg CK, Ottesen TD, Kebaish KJ, Galivanche A, Murthy S, Changoor NR, Zogg DL, Pawlik TM, Haider AH. The Cost of Complications Following Major Resection of Malignant Neoplasia. Journal Of Gastrointestinal Surgery 2018, 22: 1976-1986. PMID: 29946953, PMCID: PMC6224301, DOI: 10.1007/s11605-018-3850-6.Peer-Reviewed Original ResearchConceptsIncremental hospital costsHospital costsMalignant neoplasiaMajor resectionResection typePre-discharge complicationsSystem-based complicationsImpact of complicationsComplex surgical patientsCost of complicationsLong-term treatmentMore complex patientsMajor gastrointestinal resectionsProviders/payersValue of carePulmonary complicationsUrinary complicationsComplication groupInfectious complicationsAdult patientsRectal resectionSurgical patientsGastrointestinal resectionGI diseaseSurgical outcomesCured into Destitution
Scott JW, Raykar NP, Rose JA, Tsai TC, Zogg CK, Haider AH, Salim A, Meara JG, Shrime MG. Cured into Destitution. Annals Of Surgery 2018, 267: 1093-1099. PMID: 28394867, DOI: 10.1097/sla.0000000000002254.Peer-Reviewed Original ResearchConceptsUninsured patientsGreater riskMedian inpatient chargesTrauma-related admissionsNationwide Inpatient SamplePrimary outcome measureMost demographic subgroupsRisk of CHECatastrophic health expenditureFinancial risk protectionRetrospective reviewTrauma populationPrimary diagnosisInpatient chargesInpatient SampleOutcome measuresPatientsSevere injuriesStudy periodUS Census dataHealth careTraumaAdmissionDemographic subgroupsRiskDisparate outcomes of global emergency surgery - A matched comparison of patients in developed and under—developed healthcare settings
Shah AA, Zogg CK, Rehman A, Latif A, Zafar H, Shakoor A, Wasif N, Chapital AB, Riviello R, Ashfaq A, Williams M, Cornwell EE, Haider AH. Disparate outcomes of global emergency surgery - A matched comparison of patients in developed and under—developed healthcare settings. The American Journal Of Surgery 2018, 215: 1029-1036. PMID: 29807633, DOI: 10.1016/j.amjsurg.2018.05.008.Peer-Reviewed Original ResearchConceptsAga Khan University HospitalPakistani patientsUS Nationwide Inpatient SampleHealthcare settingsUrban-teaching hospitalsRisk-adjusted oddsComparison of patientsNationwide Inpatient SampleRisk-adjusted differencesGlobal health policy developmentHealth system strengtheningDiverse healthcare settingsHealth policy developmentReported morbidityMajor morbidityEmergency surgeryRural patientsUniversity HospitalInpatient SampleGeneralized-linear modelSurgical careMortality differencesPatientsHealthcare systemDisparate outcomesThe Epidemiology of Pediatric Head Injury Treated Outside of Hospital Emergency Departments
Zogg CK, Haring RS, Xu L, Canner JK, AlSulaim HA, Hashmi ZG, Salim A, Engineer LD, Haider AH, Bell JM, Schneider EB. The Epidemiology of Pediatric Head Injury Treated Outside of Hospital Emergency Departments. Epidemiology 2018, 29: 269-279. PMID: 29240568, PMCID: PMC5937022, DOI: 10.1097/ede.0000000000000791.Peer-Reviewed Original ResearchConceptsInjury-specific factorsPediatric patientsEmergency departmentOutpatient settingHead traumaAmbulatory care useEmergency department visitsEmergency department carePediatric head injuryTrauma-related deathsHospital emergency departmentHead trauma casesMarketScan MedicaidNationwide burdenOutpatient injuriesIndex visitDepartment visitsOutpatient burdenHead injuryCare useOutpatient careIncidence rateOutpatient casesTrauma casesCommercial ClaimsThe “mortality ascent”
Herrera-Escobar JP, Rios-Diaz AJ, Zogg CK, Wolf LL, Harlow A, Schneider EB, Cooper Z, Ordonez CA, Salim A, Haider AH. The “mortality ascent”. Journal Of Trauma And Acute Care Surgery 2018, 84: 139-145. PMID: 28930947, DOI: 10.1097/ta.0000000000001706.Peer-Reviewed Original ResearchConceptsUnstable trauma patientsLevel I TCsLevel II TCsHours postadmissionTrauma patientsLevel ILevel IIMortality riskHospital mortalityLog-binomial regression modelsNational Trauma Data BankComparable mortality riskHospital-level confoundersInjury Severity ScoreSystolic blood pressureAvailable treatment modalitiesTrauma Data BankSpecific risk factorsRisk-adjusted modelsBlood pressureHigher relative mortalityUnstable patientsBurn patientsSeverity scoreTreatment modalities
2017
Epidemiology of malignant cutaneous granular cell tumors: A US population-based cohort analysis using the Surveillance, Epidemiology, and End Results (SEER) database
Mirza FN, Tuggle CT, Zogg CK, Mirza HN, Narayan D. Epidemiology of malignant cutaneous granular cell tumors: A US population-based cohort analysis using the Surveillance, Epidemiology, and End Results (SEER) database. Journal Of The American Academy Of Dermatology 2017, 78: 490-497.e1. PMID: 28989104, PMCID: PMC5815907, DOI: 10.1016/j.jaad.2017.09.062.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAged, 80 and overBlack or African AmericanChildFemaleGranular Cell TumorHumansIncidenceKaplan-Meier EstimateKidney NeoplasmsMaleMiddle AgedNeoplasm StagingPancreatic NeoplasmsResidence CharacteristicsRetrospective StudiesSEER ProgramSex FactorsSkin NeoplasmsSurvival RateUnited StatesWhite PeopleYoung AdultConceptsDisease-specific survivalCutaneous granular cell tumorsPopulation-based cohort analysisEnd Results (SEER) databaseMedian survival timeGranular cell tumorSurgical resectionResults databaseCell tumorsCohort analysisSurvival timeCox proportional hazards regressionPoor disease-specific survivalRisk-adjusted associationHigh-risk patientsEnd Results (SEER) dataProportional hazards regressionSingle-institution studyAdvanced cancer stageRisk-adjusted modelsDSS ratesOverall survivalPatient characteristicsSubstantial morbiditySecondary malignanciesDifferences in rural and urban outcomes: a national inspection of emergency general surgery patients
Chaudhary MA, Shah AA, Zogg CK, Changoor N, Chao G, Nitzschke S, Havens JM, Haider AH. Differences in rural and urban outcomes: a national inspection of emergency general surgery patients. Journal Of Surgical Research 2017, 218: 277-284. PMID: 28985861, DOI: 10.1016/j.jss.2017.06.034.Peer-Reviewed Original ResearchConceptsLength of stayRural patientsEGS conditionsUrban hospitalOverall oddsEmergency general surgery conditionsEmergency general surgery patientsShorter LOSGeneral surgery patientsPatient-level factorsLimited clinical importanceNational Inpatient SampleSurgery of TraumaRegionalization of careCost of careMultivariable regression modelsUnited States populationHospital mortalityEGS patientsSurgery patientsUrban patientsAdult patientsMajor complicationsPrimary diagnosisInpatient SampleThe Need to Consider Longer-term Outcomes of Care
Zogg CK, Olufajo OA, Jiang W, Bystricky A, Scott JW, Shafi S, Havens JM, Salim A, Schoenfeld AJ, Haider AH. The Need to Consider Longer-term Outcomes of Care. Annals Of Surgery 2017, 266: 66-75. PMID: 28140382, DOI: 10.1097/sla.0000000000001932.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedBlack or African AmericanCaliforniaEmergency Service, HospitalHealthcare DisparitiesHispanic or LatinoHospital MortalityHumansIncomeInsurance CoverageInsurance, HealthLongitudinal StudiesMiddle AgedOutcome Assessment, Health CarePatient ReadmissionPostoperative ComplicationsProportional Hazards ModelsSurgical Procedures, OperativeSurvival AnalysisWhite PeopleYoung AdultConceptsLong-term outcomesNon-Hispanic blacksUnplanned readmissionMajor morbidityWhite patientsMinority patientsEthnic disparitiesEmergency general surgery patientsCalifornia State Inpatient DatabaseCox proportional hazards modelDiagnostic categoriesOlder adultsGeneral surgery patientsState Inpatient DatabasesProportional hazards modelRisk-adjusted differencesHispanic older adultsEGS patientsEGS volumeReadmission trendsSurgery patientsSurgical patientsHospital proportionInpatient DatabasePostacute phasePatterns of use and factors associated with early discontinuation of opioids following major trauma
Chaudhary MA, Scully R, Jiang W, Chowdhury R, Zogg CK, Sharma M, Ranjit A, Koehlmoos T, Haider AH, Schoenfeld AJ. Patterns of use and factors associated with early discontinuation of opioids following major trauma. The American Journal Of Surgery 2017, 214: 792-797. PMID: 28619266, DOI: 10.1016/j.amjsurg.2017.05.013.Peer-Reviewed Original ResearchConceptsPrescription opioid useOpioid useOpioid discontinuationPrescription opioidsRisk-adjusted Cox proportional hazards modelsCox proportional hazards modelTraumatic injury patientsProportional hazards modelHigher injury severityPublic health issueLow socioeconomic statusTricare insuranceEarly discontinuationAdult patientsYounger patientsBlack patientsInjury patientsMajor traumaHigh riskPatterns of useInjury severityPatientsDiscontinuationOpioidsOne-yearComparison of Epidemiology of the Injuries and Outcomes in Two First‐Level Trauma Centers in Colombia Using the Pan‐American Trauma Registry System
Ramachandran A, Ranjit A, Zogg CK, Herrera‐Escobar J, Appelson JR, Pino LF, Aboutanous MB, Haider AH, Ordonez CA. Comparison of Epidemiology of the Injuries and Outcomes in Two First‐Level Trauma Centers in Colombia Using the Pan‐American Trauma Registry System. World Journal Of Surgery 2017, 41: 2224-2230. PMID: 28417184, DOI: 10.1007/s00268-017-4013-8.Peer-Reviewed Original ResearchConceptsTrauma centerMortality outcomesRisk-adjusted logistic regression analysesTertiary care trauma centerPropensity scoreHospital Universitario del ValleMultivariable logistic regression modelLevel trauma centerTrauma-related mortalityPresence of hypotensionTrauma Registry SystemComparable mean ageMechanism of injuryOdds of deathComparison of EpidemiologyLogistic regression analysisLogistic regression modelsHospital mortalityPatient demographicsGCS scoreTrauma registryInjury epidemiologyMean ageInsurance statusInsurance type
2016
Implications of the Patient Protection and Affordable Care Act on Insurance Coverage and Rehabilitation Use Among Young Adult Trauma Patients.
Zogg CK, Payró Chew F, Scott JW, Wolf LL, Tsai TC, Najjar P, Olufajo OA, Schneider EB, Haut ER, Haider AH, Canner JK. Implications of the Patient Protection and Affordable Care Act on Insurance Coverage and Rehabilitation Use Among Young Adult Trauma Patients. JAMA Surgery 2016, 151: e163609. PMID: 27760245, DOI: 10.1001/jamasurg.2016.3609.Peer-Reviewed Original ResearchConceptsYoung adult trauma patientsDependent coverage provisionAdult trauma patientsAffordable Care ActTrauma patientsRehabilitation useInsurance coverageClinical end pointsPatient ProtectionCare ActCause of deathComplete patient recordsHigh-quality careEmergency departmentMean ageOutpatient settingUninsured patientsPatient outcomesRisk groupsPatientsRehabilitation accessACA implementationRescue ratesPatient recordsLongitudinal assessmentGeographic Distribution of Trauma Burden, Mortality, and Services in the United States: Does Availability Correspond to Patient Need?
Rios-Diaz AJ, Metcalfe D, Olufajo OA, Zogg CK, Yorkgitis B, Singh M, Haider AH, Salim A. Geographic Distribution of Trauma Burden, Mortality, and Services in the United States: Does Availability Correspond to Patient Need? Journal Of The American College Of Surgeons 2016, 223: 764-773.e2. PMID: 28193322, DOI: 10.1016/j.jamcollsurg.2016.08.569.Peer-Reviewed Original ResearchConceptsLevel II trauma centerAge-adjusted mortality ratesTrauma admissionsTrauma centerTrauma serviceTrauma mortalityTrauma burdenMortality rateTrauma care provisionAge-adjusted mortalityCritical care providersTrauma patientsTrauma careCare providersLevel IPatient needsAdmissionProvider densitySurgeon availabilityQuality careMortalityCare provisionSCC fellowshipsAssociationCareRethinking Priorities
Zogg CK, Najjar P, Diaz A, Zogg DL, Tsai TC, Rose JA, Scott JW, Gani F, Alshaikh H, Nagarajan N, Canner JK, Schneider EB, Goldberg JE, Haider AH. Rethinking Priorities. Annals Of Surgery 2016, 264: 312-322. PMID: 26501705, DOI: 10.1097/sla.0000000000001511.Peer-Reviewed Original ResearchConceptsElective colectomyPrimary diagnosisNationwide Inpatient Sample dataIncremental costBenign colonic neoplasmsSystem-based complicationsCost of complicationsSurgical quality improvement initiativesIncremental hospital costsLong-term treatmentQuality improvement initiativesExperienced complicationsInfectious complicationsCardiovascular complicationsComplication groupDiverticular diseaseOpen resectionAdult patientsFrequent diagnosisColonic neoplasmsHospital costsOperative techniqueColectomyComplicationsHealthcare costs