2022
Contemporary socioeconomic-based disparities in cardiac surgery: Are we closing the disparities gap?
Newell P, Asokan S, Zogg C, Prasanna A, Hirji S, Harloff M, Kerolos M, Kaneko T. Contemporary socioeconomic-based disparities in cardiac surgery: Are we closing the disparities gap? Journal Of Thoracic And Cardiovascular Surgery 2022, 167: 967-978.e21. PMID: 35570024, DOI: 10.1016/j.jtcvs.2022.02.061.Peer-Reviewed Original ResearchSurgical aortic valve replacementAorta surgeryCardiac surgeryMV repairValve replacementFemale sexMortality rateCoronary artery bypassAortic valve replacementHospital-level factorsMitral valve replacementNationwide Readmissions DatabaseHousehold income quartileHealth care outcomesLow socioeconomic statusArtery bypassSurgery groupAdult patientsMV replacementPatient characteristicsPrimary outcomeAdjusted analysisHighest quartileMultivariable analysisWorse outcomesDefining Referral Regions for Inpatient Trauma Care: The Utility of a Novel Geographic Definition
Zogg CK, Becher RD, Dalton MK, Hirji SA, Davis KA, Salim A, Cooper Z, Jarman MP. Defining Referral Regions for Inpatient Trauma Care: The Utility of a Novel Geographic Definition. Journal Of Surgical Research 2022, 275: 115-128. PMID: 35272088, PMCID: PMC9038698, DOI: 10.1016/j.jss.2021.12.050.Peer-Reviewed Original ResearchConceptsHospital referral regionsReferral regionsHospital service areasTrauma regionTrauma careTrauma systemHospital useInpatient trauma careOlder adult patientsState Inpatient DatabasesUS health systemRegional trauma careInpatient traumaAdult patientsNET patientsTrauma patientsInpatient DatabaseDemographic featuresHealth systemImportant demographic factorsPatientsGeographic variationDemographic factorsTraumaCare
2021
In defense of Direct Care: Limiting access to military hospitals could worsen quality and safety
Zogg CK, Lichtman JH, Dalton MK, Learn PA, Schoenfeld AJ, Koehlmoos T, Weissman JS, Cooper Z. In defense of Direct Care: Limiting access to military hospitals could worsen quality and safety. Health Services Research 2021, 57: 723-733. PMID: 34608642, PMCID: PMC9264466, DOI: 10.1111/1475-6773.13885.Peer-Reviewed Original ResearchConceptsMilitary treatment facilitiesMHS beneficiariesMilitary Health SystemCivilian hospitalsMHS patientsDirect carePatient safetyHealth care reformUS Military Health SystemNationwide Readmissions DatabasePatient safety indicatorsHealth policy planningInpatient Quality IndicatorsLocal civilian hospitalsCare reformEvidence-based evaluationHospital mortalityHospital morbidityAdult patientsAdverse eventsRetrospective cohortAdult admissionsNational inpatientInpatient claimsWorse outcomes
2020
The critical threshold value of systolic blood pressure for aortic occlusion in trauma patients in profound hemorrhagic shock.
Ordoñez CA, Rodríguez F, Orlas CP, Parra MW, Caicedo Y, Guzmán M, Serna JJ, Salcedo A, Zogg CK, Herrera-Escobar JP, Meléndez JJ, Angamarca E, Serna CA, Martínez D, García AF, Brenner M. The critical threshold value of systolic blood pressure for aortic occlusion in trauma patients in profound hemorrhagic shock. Journal Of Trauma And Acute Care Surgery 2020, 89: 1107-1113. PMID: 32925582, DOI: 10.1097/ta.0000000000002935.Peer-Reviewed Original ResearchMeSH KeywordsAdultAorta, AbdominalAorta, ThoracicBalloon OcclusionBlood PressureEndovascular ProceduresFemaleHeart ArrestHospital MortalityHumansInjury Severity ScoreLogistic ModelsMaleMultivariate AnalysisProspective StudiesResuscitationShock, HemorrhagicTrauma CentersWounds and InjuriesYoung AdultConceptsSystolic blood pressureProfound hemorrhagic shockTraumatic cardiac arrestAortic occlusionBlood pressureCardiac arrestHemorrhagic shockLevel I trauma centerValues of SBPResuscitative endovascular balloon occlusionI trauma centerAortic cross clampingInjury Severity ScoreMechanism of injuryEndovascular balloon occlusionLogistic regression analysisProbability of deathAdult patientsCross clampingTrauma patientsBalloon occlusionTrauma centerSeverity scorePrehospital settingCardiopulmonary resuscitationQuantifying the Impact of Care Fragmentation on Outcomes After Transcatheter Aortic Valve Implantation
Hirji SA, Zogg CK, Vaduganathan M, Kiehm S, Percy ED, Yazdchi F, Pelletier M, Shah PB, Bhatt DL, O'Gara P, Kaneko T. Quantifying the Impact of Care Fragmentation on Outcomes After Transcatheter Aortic Valve Implantation. The American Journal Of Cardiology 2020, 128: 113-119. PMID: 32650903, DOI: 10.1016/j.amjcard.2020.05.005.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overCardiac CatheterizationCenters for Medicare and Medicaid Services, U.S.ComorbidityContinuity of Patient CareCoronary AngiographyDiabetes MellitusFemaleHospital CostsHospital MortalityHospitalsHumansHypertensionLength of StayLung DiseasesMaleMultivariate AnalysisPacemaker, ArtificialPatient ReadmissionPericardiocentesisPostoperative ComplicationsProsthesis ImplantationStrokeTranscatheter Aortic Valve ReplacementUnited StatesConceptsNonindex hospitalNonindex readmissionsCare fragmentationTranscatheter aortic valve implantation outcomesTranscatheter aortic valve implantationHigher co-morbidity burdenNational Readmission DatabaseAortic valve implantationCo-morbidity burdenTotal hospital costsMajor cardiac proceduresUS adult patientsFuture health policyValue of careIndex readmissionTAVI patientsCause mortalityIndex hospitalNoncardiac causesAdult patientsPatient characteristicsReadmission ratesValve implantationReadmission lengthCardiac proceduresRisk Factors Portending Extended Length of Stay After Suboccipital Decompression for Adult Chiari I Malformation
Elsamadicy AA, Koo AB, Lee M, David WB, Kundishora AJ, Freedman IG, Zogg CK, Hong CS, DeSpenza T, Sarkozy M, Kahle KT, DiLuna M. Risk Factors Portending Extended Length of Stay After Suboccipital Decompression for Adult Chiari I Malformation. World Neurosurgery 2020, 138: e515-e522. PMID: 32147550, PMCID: PMC7379177, DOI: 10.1016/j.wneu.2020.02.158.Peer-Reviewed Original ResearchConceptsPatient-level factorsMultivariate logistic regressionExtended LOSLOS cohortSurgical decompressionDecompression surgeryOdds ratioGreater overall complication ratesMultiple patient-level factorsLogistic regressionChiari malformation type IAdult Chiari I malformationPatient's baseline comorbidityOverall complication rateRetrospective cohort studyChiari I malformationRisk-adjusted LOSPostoperative complicationsAdult patientsCohort studyComplication ratePatient demographicsSuboccipital decompressionElectrolyte disordersObstructive hydrocephalusThirty-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 predictorsComparison of epidemiology, treatments, and outcomes in pediatric versus adult ependymoma
Elsamadicy AA, Koo AB, David WB, Lee V, Zogg CK, Kundishora AJ, Hong CS, DeSpenza T, Reeves BC, Kahle KT, DiLuna M. Comparison of epidemiology, treatments, and outcomes in pediatric versus adult ependymoma. Neuro-Oncology Advances 2020, 2: vdaa019. PMID: 32642681, PMCID: PMC7212900, DOI: 10.1093/noajnl/vdaa019.Peer-Reviewed Original ResearchDiagnosis of ependymomaCause mortalityOlder adultsYoung adultsCause mortality ratesTreatment risk factorsExtent of resectionComparison of EpidemiologyMultivariate logistic regressionSignificant differencesImpact of ageInfluence of ageAdult patientsSEER databaseSurgical treatmentSurvival outcomesEpendymoma patientsRisk factorsTumor gradeAdult ependymomasTreatment outcomesHistological classificationSupratentorial locationInternational ClassificationMortality rate
2018
Changing prognosis of oral cancer: An analysis of survival and treatment between 1973 and 2014
Cheraghlou S, Schettino A, Zogg CK, Judson BL. Changing prognosis of oral cancer: An analysis of survival and treatment between 1973 and 2014. The Laryngoscope 2018, 128: 2762-2769. PMID: 30194691, DOI: 10.1002/lary.27315.Peer-Reviewed Original ResearchConceptsOral cavity cancerLate-stage diseaseAdjuvant therapyOral cancerEnd Results 9 registriesCox survival regressionHigher nodal yieldsNational Cancer DatabaseEarly-stage diseaseKaplan-Meier analysisRetrospective database analysisAnalysis of survivalAdjuvant chemoradiotherapyNodal yieldAdult patientsNeck dissectionRetrospective studyCancer DatabasePrognosisPatientsCancerDiseaseDatabase analysisSurvival regressionChemoradiotherapyThe 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 outcomesDialysis Patients Undergoing Total Knee Arthroplasty Have Significantly Increased Odds of Perioperative Adverse Events Independent of Demographic and Comorbidity Factors
Ottesen TD, Zogg CK, Haynes MS, Malpani R, Bellamkonda KS, Grauer JN. Dialysis Patients Undergoing Total Knee Arthroplasty Have Significantly Increased Odds of Perioperative Adverse Events Independent of Demographic and Comorbidity Factors. The Journal Of Arthroplasty 2018, 33: 2827-2834. PMID: 29754981, DOI: 10.1016/j.arth.2018.04.012.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overArthroplasty, Replacement, KneeComorbidityElective Surgical ProceduresFemaleHumansInpatientsLogistic ModelsMaleMiddle AgedMultivariate AnalysisOdds RatioPatient DischargePatient ReadmissionPostoperative ComplicationsQuality ImprovementRegression AnalysisRenal DialysisReoperationRetrospective StudiesRisk AssessmentConceptsTotal knee arthroplastyDialysis-dependent patientsAdverse eventsPatient demographicsDialysis patientsAdverse outcomesKnee arthroplastyNational Surgical Quality Improvement Program databaseOverall healthRisk-adjusted logistic regressionElective total knee arthroplastyQuality Improvement Program databaseImprovement Program databaseMinor adverse eventsNational inpatient databaseSevere adverse eventsBone health statusNondialysis cohortNondialysis patientsPerioperative periodTKA patientsAdult patientsPreoperative riskComorbidity factorsInstitutional cohort
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 SamplePatterns 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-year
2016
Rethinking 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 costsEvaluation of the Perceived Association Between Resident Turnover and the Outcomes of Patients Who Undergo Emergency General Surgery: Questioning the July Phenomenon
Shah AA, Zogg CK, Nitzschke SL, Changoor NR, Havens JM, Salim A, Cooper Z, Haider AH. Evaluation of the Perceived Association Between Resident Turnover and the Outcomes of Patients Who Undergo Emergency General Surgery: Questioning the July Phenomenon. JAMA Surgery 2016, 151: 1-8. PMID: 26536282, DOI: 10.1001/jamasurg.2015.3940.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAged, 80 and overEducation, Medical, GraduateEmergenciesFemaleGeneral SurgeryHospital MortalityHospitals, TeachingHumansLength of StayMaleMiddle AgedOutcome Assessment, Health CarePersonnel TurnoverPropensity ScoreRetrospective StudiesSeasonsUnited StatesWorkforceYoung AdultConceptsEmergency general surgeryTotal hospital costsLength of stayJuly phenomenonEGS patientsEGS conditionsHospital costsTeaching hospitalGeneral surgeryLower risk-adjusted oddsOutcomes of patientsRisk-adjusted oddsNationwide Inpatient SampleSurgery of TraumaHospital mortalityAdult patientsEarly patientsPoor outcomeInpatient SamplePrincipal diagnosisRetrospective analysisMAIN OUTCOMEMultivariable regressionPatientsPropensity score
2015
Operative delay to laparoscopic cholecystectomy
Schwartz DA, Shah AA, Zogg CK, Nicholas LH, Velopulos CG, Efron DT, Schneider EB, Haider AH. Operative delay to laparoscopic cholecystectomy. Journal Of Trauma And Acute Care Surgery 2015, 79: 15-21. PMID: 26091309, DOI: 10.1097/ta.0000000000000699.Peer-Reviewed Original ResearchConceptsHours of admissionAcute cholecystitisLaparoscopic cholecystectomyOperative managementCharlson Comorbidity IndexHospital-related factorsSecond hospital dayTime of surgeryNationwide Inpatient SampleEndoscopic retrograde cholangiopancreatographyLength of stayNext-day surgeryCost of careHealth care providersCost containmentComorbidity indexAdmission dayHospital daysLonger hospitalizationPatient demographicsAdult patientsMultivariable analysisOperative delayRetrograde cholangiopancreatographyPrimary diagnosisGeriatric emergency general surgery: Survival and outcomes in a low-middle income country
Shah AA, Haider AH, Riviello R, Zogg CK, Zafar SN, Latif A, Diaz A, Rehman Z, Zafar H. Geriatric emergency general surgery: Survival and outcomes in a low-middle income country. Surgery 2015, 158: 562-569. PMID: 25999249, DOI: 10.1016/j.surg.2015.03.045.Peer-Reviewed Original ResearchConceptsEmergency general surgery conditionsGreater oddsGeriatric patientsSurgery conditionsEmergency general surgical conditionsGreater risk-adjusted oddsOlder adultsRisk-adjusted oddsClinical Modification diagnosisGeneral surgical conditionsPeptic ulcer diseaseSurgery of TraumaMultivariable regression analysisCase-mix dataYears of ageHealth care settingsLow-middle income countriesCause mortalityGastrointestinal bleedingHospital stayAdult patientsOperative interventionYounger patientsMajor complicationsUlcer diseaseBeyond incidence: Costs of complications in trauma and what it means for those who pay
Haider AH, Gupta S, Zogg CK, Kisat MT, Schupper A, Efron DT, Haut ER, Obirieze AC, Schneider EB, Pronvost PJ, MacKenzie EJ, Cornwell EE. Beyond incidence: Costs of complications in trauma and what it means for those who pay. Surgery 2015, 158: 96-103. PMID: 25900034, DOI: 10.1016/j.surg.2015.02.015.Peer-Reviewed Original ResearchConceptsTrauma patientsAttributable costsPrimary ICD-9-CM diagnosis codesAcute respiratory distress syndromeICD-9-CM diagnosis codesTrauma-related complicationsGeneral surgery patientsRespiratory distress syndromeUrinary tract infectionInfluence of complicationsNational Inpatient SampleCost of complicationsIsolated complicationHospital stayAdult patientsSurgery patientsTract infectionsDistress syndromePatient factorsTrauma admissionsDiagnosis codesInpatient SampleMyocardial infarctionComparable cohortsHospital characteristics