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
Variation in Risk-standardized Rates and Causes of Unplanned Hospital Visits Within 7 Days of Hospital Outpatient Surgery
Desai MM, Zogg CK, Ranasinghe I, Parzynski CS, Lin Z, Gorbaty M, Merrill A, Krumholz HM, Drye EE. Variation in Risk-standardized Rates and Causes of Unplanned Hospital Visits Within 7 Days of Hospital Outpatient Surgery. Annals Of Surgery 2020, 276: e714-e720. PMID: 33214469, DOI: 10.1097/sla.0000000000004627.Peer-Reviewed Original ResearchMeSH KeywordsAgedAmbulatory Surgical ProceduresEmergency Service, HospitalFee-for-Service PlansHospitalizationHospitalsHumansMedicareRetrospective StudiesUnited StatesConceptsUnplanned hospital visitsHospital outpatient surgeryHospital outpatient departmentsHospital visitsOutpatient surgeryShort-term safety outcomesFacility-level variationHierarchical logistic regression modelingPost-surgical visitSame-day surgeryHalf of proceduresLogistic regression modelingUrinary retentionStudy cohortUnplanned visitsClinical comorbiditiesOutpatient departmentOutpatient settingPreventable conditionPreventable reasonsBACKGROUND DATASafety outcomesMedicare feeSurgeryService beneficiariesHospital Variation in Geriatric Surgical Safety for Emergency Operation
Becher RD, Sukumar N, DeWane MP, Stolar MJ, Gill TM, Schuster KM, Maung AA, Zogg CK, Davis KA. Hospital Variation in Geriatric Surgical Safety for Emergency Operation. Journal Of The American College Of Surgeons 2020, 230: 966-973.e10. PMID: 32032720, PMCID: PMC7409563, DOI: 10.1016/j.jamcollsurg.2019.10.018.Peer-Reviewed Original ResearchConceptsStandardized mortality ratioHospital-level characteristicsGeneral surgery operationsGeriatric patientsEmergency operationHospital variationEmergency general surgery operationsMean standardized mortality ratioCalifornia State Inpatient DatabaseHospital-based mortalitySignificant hospital variationPatients 65 yearsSubstantial excess mortalitySurgery operationsState Inpatient DatabasesMixed effects logistic regression modelsCommon general surgery operationsLow-mortality outliersLogistic regression modelsPostoperative mortalityHospital deathOlder patientsInpatient DatabaseMortality outcomesNonelective operations
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 ResearchMeSH KeywordsAdolescentAdultAge FactorsAmbulatory CareCraniocerebral TraumaEmergency Service, HospitalFemaleHumansMaleMiddle AgedSeasonsSex FactorsUnited StatesYoung AdultConceptsInjury-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 controlPatients
2017
Differences 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 phase
2016
Insurance status is associated with complex presentation among emergency general surgery patients
Scott JW, Havens JM, Wolf LL, Zogg CK, Rose JA, Salim A, Haider AH. Insurance status is associated with complex presentation among emergency general surgery patients. Surgery 2016, 161: 320-328. PMID: 27712875, DOI: 10.1016/j.surg.2016.08.038.Peer-Reviewed Original ResearchMeSH KeywordsAdultDatabases, FactualEmergency Service, HospitalEmergency TreatmentFemaleGeneral SurgeryHealth Services AccessibilityHumansInsurance CoverageLogistic ModelsMaleMedically UninsuredMiddle AgedOdds RatioOutcome Assessment, Health CarePatient Protection and Affordable Care ActPatient SafetyRetrospective StudiesRisk AssessmentSocioeconomic FactorsUnited StatesYoung AdultConceptsInsurance statusComplex presentationSurgical presentationUninsured patientsEmergency general surgical careEmergency general surgical conditionsEmergency general surgical patientsEmergency general surgery patientsNational Emergency Department SampleHospital-level covariatesOverall uninsured rateUninsured payer statusGeneral surgery patientsGeneral surgical patientsGeneral surgical conditionsIntra-abdominal abscessMultivariable logistic regressionEmergency Department SampleDisease-specific measuresSeverity of diseaseLack of insuranceGeneral surgical careIntestinal gangreneBowel obstructionGeneralized peritonitisInequalities in Specialist Hand Surgeon Distribution across the United States
Rios-Diaz AJ, Metcalfe D, Singh M, Zogg CK, Olufajo OA, Ramos MS, Caterson EJ, Talbot SG. Inequalities in Specialist Hand Surgeon Distribution across the United States. Plastic & Reconstructive Surgery 2016, 137: 1516-1522. PMID: 27119925, DOI: 10.1097/prs.0000000000002103.Peer-Reviewed Original ResearchConceptsSpecialist hand surgeonsHand surgeonsTrauma admissionsRisk-adjusted generalized linear modelsDensity of surgeonsState Inpatient DatabasesMedical specialty databasesFellowship positionsInpatient DatabaseIndependent associationHospital specialistsTrauma careGeneral surgeonsEmergency careHealthcare costsOrthopaedic surgeonsSurgeon densitySurgeonsAdmissionPlastic surgeonsSubspecialty certificateUnited StatesSpecialty databasesAmerican BoardCareInfluence of sub-specialty surgical care on outcomes for pediatric emergency general surgery patients in a low-middle income country
Shah AA, Shakoor A, Zogg CK, Oyetunji T, Ashfaq A, Garvey EM, Latif A, Riviello R, Qureshi FG, Mateen A, Haider AH, Zafar H. Influence of sub-specialty surgical care on outcomes for pediatric emergency general surgery patients in a low-middle income country. International Journal Of Surgery 2016, 29: 12-18. PMID: 26971828, DOI: 10.1016/j.ijsu.2016.03.007.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAsia, SoutheasternChildChild, PreschoolDeveloping CountriesEmergency Service, HospitalFemaleGeneral SurgeryHealth ResourcesHospital MortalityHumansLength of StayMaleOutcome Assessment, Health CarePakistanPediatric Emergency MedicinePostoperative ComplicationsRetrospective StudiesConceptsLength of stayPediatric patientsPediatric surgeryPediatric surgeonsEmergency general surgical conditionsHigher risk-adjusted oddsEmergency general surgery patientsBetter post-operative outcomesAverage LOSAdult general surgeonsAdult general surgeryGeneral surgery patientsGeneral surgical teamRisk-adjusted oddsGeneral surgical conditionsGeneral surgery teamPost-operative outcomesMultivariable regression analysisPediatric surgical specialtiesChildren/adolescentsResource-constrained settingsResource-limited settingsLow-middle income countriesMost patientsSurgery patients
2015
Analgesic Access for Acute Abdominal Pain in the Emergency Department Among Racial/Ethnic Minority Patients
Shah AA, Zogg CK, Zafar SN, Schneider EB, Cooper LA, Chapital AB, Peterson SM, Havens JM, Thorpe RJ, Roter DL, Castillo RC, Salim A, Haider AH. Analgesic Access for Acute Abdominal Pain in the Emergency Department Among Racial/Ethnic Minority Patients. Medical Care 2015, 53: 1000-1009. PMID: 26569642, DOI: 10.1097/mlr.0000000000000444.Peer-Reviewed Original ResearchMeSH KeywordsAbdominal PainAcute PainAdolescentAdultAgedAnalgesicsBlack or African AmericanDiagnostic Techniques and ProceduresEmergency Service, HospitalEthnicityFemaleHealth Care SurveysHealthcare DisparitiesHispanic or LatinoHospitalizationHumansLength of StayMaleMiddle AgedNarcoticsRacial GroupsResidence CharacteristicsRetrospective StudiesSocioeconomic FactorsTime FactorsWhite PeopleYoung AdultConceptsAcute abdominal painLower risk-adjusted oddsRisk-adjusted oddsAbdominal painRace/ethnicityEmergency departmentMinority patientsEthnic disparitiesNontraumatic acute abdominal painRisk-adjusted multivariable analysisNon-Hispanic black patientsNon-Hispanic white patientsRace/ethnicity-based differencesEthnic group patientsModerate-severe painPatient-reported painPatients 18 yearsProportion of patientsSubsequent inpatient admissionSurgery of TraumaRisk-adjusted differencesED wait timesNon-Hispanic blacksEthnic minority patientsUniform definitionIncremental Cost of Emergency Versus Elective Surgery
Haider AH, Obirieze A, Velopulos CG, Richard P, Latif A, Scott VK, Zogg CK, Haut ER, Efron DT, Cornwell EE, MacKenzie EJ, Gaskin DJ. Incremental Cost of Emergency Versus Elective Surgery. Annals Of Surgery 2015, 262: 260-266. PMID: 25521669, DOI: 10.1097/sla.0000000000001080.Peer-Reviewed Original ResearchConceptsAbdominal aortic aneurysm repairCoronary artery bypass graftAortic aneurysm repairArtery bypass graftEmergency surgeryElective surgeryAneurysm repairBypass graftColon resectionAdjusted oddsNationwide Inpatient Sample dataMean cost differenceElective surgery patientsMultivariable logistic regressionDischarge-level weightsAdjusted riskSurgery patientsEmergent proceduresCare coordinationElective admissionsWorse outcomesHospital costsCost differencesEmergent casesElective care