2020
Risk 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 hydrocephalus
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
Dialysis is an independent risk factor for perioperative adverse events, readmission, reoperation, and mortality for patients undergoing elective spine surgery
Ottesen TD, McLynn RP, Zogg CK, Shultz BN, Ondeck NT, Bovonratwet P, Bellamkonda KS, Rubin LE, Grauer JN. Dialysis is an independent risk factor for perioperative adverse events, readmission, reoperation, and mortality for patients undergoing elective spine surgery. The Spine Journal 2018, 18: 2033-2042. PMID: 30077772, DOI: 10.1016/j.spinee.2018.04.007.Peer-Reviewed Original ResearchConceptsElective spine surgeryNon-dialysis patientsDialysis-dependent patientsPerioperative adverse eventsAdverse eventsDialysis patientsSpine surgeryUnplanned readmissionCohort studyPatient demographicsRisk factorsNational Surgical Quality Improvement Program databaseRisk-adjusted multivariate regressionsQuality Improvement Program databaseOperating roomDialysis-independent patientsInstitutional cohort studyMinor adverse eventsRetrospective cohort studyElective spinal surgeryImprovement Program databaseIndependent risk factorMajor adverse eventsPercentage of complicationsAdministrative database studyDialysis 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
Comparison 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
2015
Morbidity or mortality? Variations in trauma centres in the rescue of older injured patients
Zafar SN, Shah AA, Zogg CK, Hashmi ZG, Greene WR, Haut ER, Cornwell EE, Haider AH. Morbidity or mortality? Variations in trauma centres in the rescue of older injured patients. Injury 2015, 47: 1091-1097. PMID: 26724172, DOI: 10.1016/j.injury.2015.11.044.Peer-Reviewed Original ResearchMeSH KeywordsAcute Kidney InjuryAgedAged, 80 and overComorbidityDatabases, FactualFailure to Rescue, Health CareFemaleGeriatric AssessmentHospital MortalityHumansInjury Severity ScoreLength of StayMaleMedicaidPneumoniaPostoperative ComplicationsRespiratory Distress SyndromeRisk AssessmentTrauma CentersUnited StatesWounds and InjuriesConceptsOlder trauma patientsMajor complicationsTrauma centerOld traumaRisk-adjusted ratesOlder patientsTrauma patientsNational Trauma Data BankFacility-level covariatesRisk-adjusted incidenceTrauma Data BankProcess of careType of injuryLogistic regression analysisPatient demographicsGeriatric traumaComorbid conditionsGeriatric patientsHigher proportionSerious complicationsInclusion criteriaInjury severityPatientsRescue ratesVital signsOperative 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 diagnosisRacial disparities in surgical outcomes: Does the level of resident surgeon play a role?
Changoor NR, Ortega G, Ekladios M, Zogg CK, Cornwell EE, Haider AH. Racial disparities in surgical outcomes: Does the level of resident surgeon play a role? Surgery 2015, 158: 547-555. PMID: 26003906, DOI: 10.1016/j.surg.2015.03.046.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAppendectomyCholecystectomy, LaparoscopicClinical CompetenceDatabases, FactualEthnicityFemaleHealthcare DisparitiesHerniorrhaphyHumansInternship and ResidencyLogistic ModelsMaleMiddle AgedOutcome Assessment, Health CarePostoperative ComplicationsRetrospective StudiesUnited StatesWhite PeopleConceptsBlack patientsSurgeons National Surgical Quality Improvement Program databaseNational Surgical Quality Improvement Program databaseGreater risk-adjusted oddsQuality Improvement Program databaseImprovement Program databaseRisk-adjusted oddsMultivariable logistic regressionOpen hernia repairSurgical residentsHigher likelihoodLevels of providersJunior residentsSenior residentsPresence/levelLaparoscopic appendectomyMinor complicationsPatient demographicsPostoperative outcomesSurgical disparitiesHispanic patientsLaparoscopic cholecystectomySurgical outcomesWorse outcomesProgram databaseNational estimates of predictors of outcomes for emergency general surgery
Shah AA, Haider AH, Zogg CK, Schwartz DA, Haut ER, Zafar SN, Schneider EB, Velopulos CG, Shafi S, Zafar H, Efron DT. National estimates of predictors of outcomes for emergency general surgery. Journal Of Trauma And Acute Care Surgery 2015, 78: 482-491. PMID: 25710417, DOI: 10.1097/ta.0000000000000555.Peer-Reviewed Original ResearchConceptsEmergency general surgeryEGS patientsMajor complicationsGeneral surgeryMultivariate logistic regression analysisOverall complication ratePredictors of mortalityClinical Modification codesOverall mortality rateNationwide Inpatient SampleSeparate multivariate logistic regression analysesSurgery of TraumaDRG International ClassificationLogistic regression analysisHighest income quartileHospital complicationsHospital mortalityComplication ratePatient demographicsSurgical complicationsIndependent predictorsPrimary outcomeEGS conditionsMean ageInpatient Sample