2020
Urgent Care Centers Delay Emergent Surgical Care Based on Patient Insurance Status in The United States.
Hsiang WR, Wiznia D, Yousman L, Najem M, Mosier-Mills A, Jin G, Jain S, Khunte A, Davis KA, Forman HP, Schuster KM. Urgent Care Centers Delay Emergent Surgical Care Based on Patient Insurance Status in The United States. Annals Of Surgery 2020, 272: 548-553. PMID: 32932304, DOI: 10.1097/sla.0000000000004373.Peer-Reviewed Original ResearchConceptsUrgent care centersMedicaid patientsCare centerInsurance typePrivate patientsEmergent surgical careEmergent surgical casesUrgent surgical conditionIncarcerated inguinal herniaEmergency department referralsPatient insurance statusED referralsInsurance statusReferral ratesInguinal herniaSurgical conditionsSurgical careSurgical casesPatientsPrivate insuranceCliniciansStandardized scriptMedicaidCareEmergent conditionsAuthors' Response to the Letter to the Editor.
Schuster KM, Crandall M. Authors' Response to the Letter to the Editor. Journal Of Trauma And Acute Care Surgery 2020, 88: e137. PMID: 32317580, DOI: 10.1097/ta.0000000000002596.Peer-Reviewed Original ResearchEmergency Service, HospitalUnited States
2019
Hospital Operative Volume and Quality Indication for General Surgery Operations Performed Emergently in Geriatric Patients
Becher RD, DeWane MP, Sukumar N, Stolar MJ, Gill TM, Becher RM, Maung AA, Schuster KM, Davis KA. Hospital Operative Volume and Quality Indication for General Surgery Operations Performed Emergently in Geriatric Patients. Journal Of The American College Of Surgeons 2019, 228: 910-923. PMID: 31005629, PMCID: PMC6582986, DOI: 10.1016/j.jamcollsurg.2019.02.053.Peer-Reviewed Original ResearchConceptsHospital operative volumeGeneral surgery operationsGeriatric patientsOperative volumeEmergency operationHospital volumeProbability of survivalEmergency general surgery operationsCalifornia State Inpatient DatabaseRetrospective cohort studySurgery operationsState Inpatient DatabasesHigher operative volumesAverage mortality riskOlder patientsCohort studyInpatient DatabaseGeriatric populationSurgical careSurgical qualityAmerican CollegeMortality riskOptimizing outcomesStandardized increasePatientsThe EGS Grading Scale For Skin And Soft Tissue Infections Is Predictive Of Poor Outcomes
Savage SA, Li SW, Utter GH, Cox JA, Wydo SM, Cahill K, Sarani B, Holzmacher J, Duane TM, Gandhi RR, Zielinski MD, Ray-Zack M, Tierney J, Chapin T, Murphy PB, Vogt KN, Schroeppel TJ, Callaghan E, Kobayashi L, Coimbra R, Schuster KM, Gillaspie D, Timsina L, Louis A, Crandall M. The EGS Grading Scale For Skin And Soft Tissue Infections Is Predictive Of Poor Outcomes. Journal Of Trauma And Acute Care Surgery 2019, Publish Ahead of Print: &na;. PMID: 30601458, PMCID: PMC6433490, DOI: 10.1097/ta.0000000000002175.Peer-Reviewed Original ResearchConceptsSoft tissue infectionsLength of stayDisease processGrading scaleInter-rater reliabilityGrade IVEmergency general surgery (EGS) diseasesDisparate disease processesRetrospective multicenter trialLaboratory Risk IndicatorNecrotizing Fasciitis (LRINEC) scoreSurgery of TraumaMulti-institutional trialHigh gradeDifferent disease processesClinical disease processesOverall complicationsHospital lengthICU lengthFasciitis (LRINEC) scoreMulticenter trialTissue infectionsValidation studyPoor outcomeDisease characteristicsSymptomatic human immunodeficiency virus–infected patients have poorer outcomes following emergency general surgery
Sandler BJ, Davis KA, Schuster KM. Symptomatic human immunodeficiency virus–infected patients have poorer outcomes following emergency general surgery. Journal Of Trauma And Acute Care Surgery 2019, 86: 479-488. PMID: 30531208, DOI: 10.1097/ta.0000000000002161.Peer-Reviewed Original ResearchConceptsHIV/AIDS patientsHIV-negative patientsAsymptomatic HIV-positive patientsHIV-positive patientsActive antiretroviral therapyAIDS patientsAntiretroviral therapyHospital stayPostoperative complicationsHuman immunodeficiency virus-infected patientsEmergency general surgery proceduresHigher median total chargesImmune deficiency syndrome (AIDS) patientsHuman immunodeficiency virus (HIV) infectionEmergency general surgeryLonger hospital stayRetrospective cohort studyAcute renal failureHIV-negative controlsImmunodeficiency virus infectionVirus-infected patientsRecords of patientsUrinary tract infectionMedian total chargesNationwide Inpatient Sample
2018
Racial/Ethnic Disparities in Longer-term Outcomes Among Emergency General Surgery Patients
Zogg CK, Jiang W, Ottesen TD, Shafi S, Schuster K, Becher R, Davis KA, Haider AH. Racial/Ethnic Disparities in Longer-term Outcomes Among Emergency General Surgery Patients. Annals Of Surgery 2018, 268: 968-979. PMID: 28742704, PMCID: PMC5783796, DOI: 10.1097/sla.0000000000002449.Peer-Reviewed Original ResearchConceptsEmergency general surgery patientsNon-Hispanic whitesGeneral surgery patientsLong-term outcomesNon-Hispanic blacksNon-Hispanic AsiansMinority patientsMajor morbidityUnplanned readmissionSurgery patientsOlder adultsRisk-adjusted Cox proportional hazards modelsEthnic disparitiesCox proportional hazards modelDiagnostic categoriesRacial/Ethnic DisparitiesUS population agesProportional hazards modelNHB patientsNonagenarian patientsNHW patientsBACKGROUND DATAHospital's percentageMortality differencesMedicare dataInsurance 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 careTransfer status
DeWane MP, Davis KA, Schuster KM, Erwin SP, Maung AA, Becher RD. Transfer status. Journal Of Trauma And Acute Care Surgery 2018, 85: 348-353. PMID: 29664889, DOI: 10.1097/ta.0000000000001939.Peer-Reviewed Original ResearchConceptsOutside emergency departmentHospital inpatient unitsEmergency departmentNursing homesInpatient unitTransfer statusSurgeons National Surgical Quality Improvement Program databaseNational Surgical Quality Improvement Program databaseBackward multivariable logistic regressionOutside hospital emergency departmentEmergency general surgery patientsQuality Improvement Program databaseMultivariate Cox regression analysisEmergency colon surgeryGeneral surgery patientsThirty-day mortalityImprovement Program databaseChronic care facilitiesCox regression analysisRates of morbidityTransfer of patientsHospital emergency departmentHospital inpatient wardsEmergent colectomyPhysiologic decompensationThe effect of insurance type on access to inguinal hernia repair under the Affordable Care Act
Hsiang W, McGeoch C, Lee S, Cheung W, Becher R, Davis KA, Schuster KM. The effect of insurance type on access to inguinal hernia repair under the Affordable Care Act. Surgery 2018, 164: 201-205. PMID: 29747862, DOI: 10.1016/j.surg.2018.03.013.Peer-Reviewed Original ResearchValidation of a new American Association for the Surgery of Trauma (AAST) anatomic severity grading system for acute cholecystitis
Vera K, Pei KY, Schuster KM, Davis KA. Validation of a new American Association for the Surgery of Trauma (AAST) anatomic severity grading system for acute cholecystitis. Journal Of Trauma And Acute Care Surgery 2018, 84: 650-654. PMID: 29271871, DOI: 10.1097/ta.0000000000001762.Peer-Reviewed Original ResearchConceptsLength of stayAcute cholecystitisICU useGrade 2Anatomic gradingAdverse eventsGrade 1Longer LOSAnatomic grading systemGrade 1 diseaseEmergency general surgeryGrade 3 patientsRetrospective cohort studyIncidence of complicationsMajority of patientsTertiary medical centerLow-grade diseaseSurgery of TraumaRisk-adjusted outcomesGood inter-rater reliabilityAAST gradeAmerican AssociationCholecystitis severityCohort studyConsecutive patientsVenous Thromboembolism-Related Readmission in Emergency General Surgery Patients: A Role for Prophylaxis on Discharge?
DeWane MP, Davis KA, Schuster KM, Maung AA, Becher RD. Venous Thromboembolism-Related Readmission in Emergency General Surgery Patients: A Role for Prophylaxis on Discharge? Journal Of The American College Of Surgeons 2018, 226: 1072-1077.e3. PMID: 29574180, DOI: 10.1016/j.jamcollsurg.2018.03.021.Peer-Reviewed Original ResearchConceptsVenous thromboembolismEmergency general surgery operationsPost-discharge venous thromboembolismEmergency general surgery patientsMultivariable logistic regression modelingCommon EGS operationsGeneral surgery patientsRate of readmissionUrinary tract infectionSurgeons NSQIP databaseHigh-risk groupGeneral surgery operationsLogistic regression modelingEGS operationsProphylactic anticoagulationVTE formationVTE prophylaxisVTE ratesEGS patientsPostoperative sepsisNSQIP databaseProlonged lengthSurgery patientsTract infectionsPredictive factors
2017
The capacity of ICD-10-CM/PCS to characterize surgical care
Utter GH, Schuster KM, Miller PR, Mowery NT, Agarwal SK, Winchell RJ, Crandall ML. The capacity of ICD-10-CM/PCS to characterize surgical care. Journal Of Trauma And Acute Care Surgery 2017, 83: 894-898. PMID: 28538626, DOI: 10.1097/ta.0000000000001592.Peer-Reviewed Original Research
2016
The American Association for the Surgery of Trauma grading scale for 16 emergency general surgery conditions
Tominaga GT, Staudenmayer KL, Shafi S, Schuster KM, Savage SA, Ross S, Muskat P, Mowery NT, Miller P, Inaba K, Cohen MJ, Ciesla D, Brown CV, Agarwal S, Aboutanos MB, Utter GH, Crandall M. The American Association for the Surgery of Trauma grading scale for 16 emergency general surgery conditions. Journal Of Trauma And Acute Care Surgery 2016, 81: 593-602. PMID: 27257696, DOI: 10.1097/ta.0000000000001127.Peer-Reviewed Original ResearchThe confusion continues: results from an American Association for the Surgery of Trauma survey on massive transfusion practices among United States trauma centers
Etchill E, Sperry J, Zuckerbraun B, Alarcon L, Brown J, Schuster K, Kaplan L, Piper G, Peitzman A, Neal MD. The confusion continues: results from an American Association for the Surgery of Trauma survey on massive transfusion practices among United States trauma centers. Transfusion 2016, 56: 2478-2486. PMID: 27515056, DOI: 10.1111/trf.13755.Peer-Reviewed Original ResearchConceptsMassive transfusion protocolMassive transfusion practiceMTP activationTransfusion practiceScoring systemTranexamic acidUnited States trauma centersPartial thromboplastin time (aPTT) testingTEG/ROTEMInternational normalized ratioStates trauma centersCare prothrombin timeOutcome-based studiesAmerican AssociationNontrauma patientsRed blood cellsTransfusion protocolTrauma centerHemostatic resuscitationMassive hemorrhageNormalized ratioRotational thromboelastometryProthrombin timeLevel INontrauma indicationsThe older they are the harder they fall: Injury patterns and outcomes by age after ground level falls
Bhattacharya B, Maung A, Schuster K, Davis KA. The older they are the harder they fall: Injury patterns and outcomes by age after ground level falls. Injury 2016, 47: 1955-1959. PMID: 27346422, DOI: 10.1016/j.injury.2016.06.019.Peer-Reviewed Original ResearchMeSH KeywordsAccidental FallsAgedAged, 80 and overAnticoagulantsAspirinComorbidityFemaleFollow-Up StudiesFractures, BoneGeriatric AssessmentHospitalizationHumansInjury Severity ScoreIntracranial HemorrhagesMaleMultiple TraumaPlatelet Aggregation InhibitorsRetrospective StudiesSurvival AnalysisTrauma CentersTreatment OutcomeUnited StatesConceptsGround-level fallInjury patternsAnticoagulation useAspirin useIntracranial bleedAnticoagulation agentsAbdominal solid organ injuriesCertain injury patternsAdult trauma patientsSolid organ injuryAntiplatelet useHome dischargePatient characteristicsLife expectancy increasesMean ISSOrgan injuryOverall mortalityRetrospective reviewTrauma patientsGeriatric patientsSignificant morbidityTrauma centerPatient populationPelvic fracturesCervical spineMulticenter validation of American Association for the Surgery of Trauma grading system for acute colonic diverticulitis and its use for emergency general surgery quality improvement program
Shafi S, Priest EL, Crandall ML, Klekar CS, Nazim A, Aboutanos M, Agarwal S, Bhattacharya B, Byrge N, Dhillon TS, Eboli DJ, Fielder D, Guillamondegui O, Gunter O, Inaba K, Mowery NT, Nirula R, Ross SE, Savage SA, Schuster KM, Schmoker RK, Siboni S, Siparsky N, Trust MD, Utter GH, Whelan J, Feliciano DV, Rozycki G. Multicenter validation of American Association for the Surgery of Trauma grading system for acute colonic diverticulitis and its use for emergency general surgery quality improvement program. Journal Of Trauma And Acute Care Surgery 2016, 80: 405-411. PMID: 26670116, DOI: 10.1097/ta.0000000000000943.Peer-Reviewed Original ResearchConceptsAcute colonic diverticulitisQuality Improvement ProgramAAST gradeLength of stayColonic diverticulitisGrade IClinical eventsNational Surgical Quality Improvement ProgramEmergency general surgery (EGS) diseasesPhysiologic statusSurgical Quality Improvement ProgramGrading systemTrauma grading systemRisk of deathTime of admissionSurgery of TraumaNew grading systemHigher disease gradeRegression analysisAmerican AssociationEGS careEGS registryAdverse eventsMedian ageClinical outcomes
2011
Development of a Computed Tomography-Based Scoring System for Necrotizing Soft-Tissue Infections
McGillicuddy EA, Lischuk AW, Schuster KM, Kaplan LJ, Maung A, Lui FY, Bokhari SA, Davis KA. Development of a Computed Tomography-Based Scoring System for Necrotizing Soft-Tissue Infections. Journal Of Trauma And Acute Care Surgery 2011, 70: 894-899. PMID: 21610394, DOI: 10.1097/ta.0b013e3182134a76.Peer-Reviewed Original ResearchConceptsSoft tissue infectionsComputed tomographyScoring systemTertiary care medical centerCT-based scoring systemCT scoring systemSoft tissue necrosisDiagnosis of NSTICharacteristic curveCT findingsPathologic findingsSignificant morbidityPhysical examinationLaboratory findingsOperative notesPathology reportsProspective validationMedical CenterCT scanNSTIDiagnostic adjunctCT scanningDiagnostic testsPatientsStudy period