Rick O'Connor
Staff Affiliate - YNHHCards
About
Research
Publications
2024
Patient reported outcomes of emergency general surgery procedures
Mathew P, Ali Y, O'Connor R, Levinson R, Khan A, Schuster K. Patient reported outcomes of emergency general surgery procedures. The American Journal Of Surgery 2024, 232: 118-125. PMID: 38413350, DOI: 10.1016/j.amjsurg.2024.01.021.Peer-Reviewed Original ResearchEmergency general surgeryEmergency general surgery patientsMixed methods studyEmergency general surgery proceduresSemi-structured interviewsPatient experienceHealthcare systemMethods studyOutcome measuresInterpretation - PatientsPatient outcomesGeneral surgery proceduresDecision-makingCommunication issuesSeverity of complicationsCareFindings to clinical characteristicsPROMGeneral surgeryEmergency surgeryClinical characteristicsExpeditious treatmentOutcomesTeamSurgery procedures
2023
Imaging acute cholecystitis, one test is enough
Schuster K, Schroeppel T, O'Connor R, Enniss T, Cripps M, Cullinane D, Kaafarani H, Crandall M, Puri R, Tominaga G. Imaging acute cholecystitis, one test is enough. The American Journal Of Surgery 2023, 226: 99-103. PMID: 36882336, DOI: 10.1016/j.amjsurg.2023.02.018.Peer-Reviewed Original ResearchConceptsCommon bile duct diameterBile duct diameterAcute cholecystitisIntra-class correlation coefficientDuct diameterRight upper quadrant painUpper quadrant painSigns of inflammationSingle imaging studyChi-square testQuadrant painPericholecystic fluidWall thicknessMulticenter studyPatientsImaging studiesCholecystitisAbnormal valuesGold standardAdequate informationPainInflammationAdmissionStudyDiagnosis
2022
Occult traumatic pneumothorax: Is routine follow up chest X-ray necessary?
Bhattacharya B, O'Connor R, Becher R, Schuster K, Davis K, Maung A. Occult traumatic pneumothorax: Is routine follow up chest X-ray necessary? Surgery In Practice And Science 2022, 9: 100073. DOI: 10.1016/j.sipas.2022.100073.Peer-Reviewed Original ResearchChest X-rayRoutine chest X-rayInjury Severity ScoreClinical managementInitial trauma evaluationUrban trauma centerComputerized tomography scanPaucity of evidenceOccult pneumothoracesPneumothorax progressionAdult patientsTrauma centerClinical evolutionClinical symptomsInjury scoreMean ageTrauma evaluationSeverity scoreTomography scanPatientsInterventionPneumothoracesSymptomsAgeX-ray
2021
Revision of the AAST grading scale for acute cholecystitis with comparison to physiologic measures of severity
Schuster KM, O’Connor R, Cripps M, Kuhlenschmidt K, Taveras L, Kaafarani HM, Hechi M, Puri R, Schroeppel TJ, Enniss TM, Cullinane DC, Cullinane LM, Agarwal S, Kaups K, Crandall M, Tominaga G. Revision of the AAST grading scale for acute cholecystitis with comparison to physiologic measures of severity. Journal Of Trauma And Acute Care Surgery 2021, 92: 664-674. PMID: 34936593, DOI: 10.1097/ta.0000000000003507.Peer-Reviewed Original ResearchConceptsAAST gradeAcute cholecystitisGrading systemAAST grading scaleAnatomic grading systemEmergency Surgery ScoreHigher AAST gradeRevised grading systemTrauma grading systemDistribution of patientsAAST grading systemKey clinical variablesTokyo GuidelinesBile leakChart reviewDischarge dispositionMajor complicationsOperative outcomesSurgery scoreMulticenter studyRadiologic dataClinical variablesOpen procedurePatient distributionLevel IVSex-based differences in helmet performance in bicycle trauma
Feler J, Maung AA, O'Connor R, Davis KA, Gerrard J. Sex-based differences in helmet performance in bicycle trauma. Journal Of Epidemiology & Community Health 2021, 75: 994-1000. PMID: 33827896, DOI: 10.1136/jech-2020-215544.Peer-Reviewed Original ResearchConceptsSex-based differencesBicycle traumaHead injuryHelmet useMultivariable logistic regression modelPatients 18 yearsRetrospective cohort studyNational Trauma DatabaseCervical spine fracturesSevere head injuryShort-term outcomesMotor vehicle collisionsSerious head injuryLogistic regression modelsAnticoagulant useCohort studyInjury overallIntracranial bleedingSpine fracturesTrauma databaseIntracranial hemorrhageCommon injuriesOdds reductionReduced oddsSkull fracture
2020
Sex-Based Differences in Bicycle Helmet Protection
Feler J, O’Connor R, Davis K, Gerrard J, Maung A. Sex-Based Differences in Bicycle Helmet Protection. Neurosurgery 2020, 67 DOI: 10.1093/neuros/nyaa447_427.Peer-Reviewed Original ResearchMulticenter validation of the American Association for the Surgery of Trauma grading scale for acute cholecystitis.
Schuster KM, O'Connor R, Cripps M, Kuhlenschmidt K, Taveras L, Kaafarani HM, El Hechi M, Puri R, Mull J, Schroeppel TJ, Rodriquez J, Cullinane DC, Cullinane LM, Enniss TM, Sensenig R, Zilberman B, Crandall M. Multicenter validation of the American Association for the Surgery of Trauma grading scale for acute cholecystitis. Journal Of Trauma And Acute Care Surgery 2020, 90: 87-96. PMID: 33332782, DOI: 10.1097/ta.0000000000002901.Peer-Reviewed Original ResearchConceptsAAST gradeTokyo GuidelinesAcute cholecystitisOperative timeEmergency general surgery (EGS) diseasesMedian AAST gradeTrauma grading scaleLonger operative timeSingle-institution studyModest discriminatory powerMulti-institutional fashionClinical decision makingAmerican AssociationPreoperative gradeUnderwent cholecystectomySurgical complicationsMean ageWorse outcomesPatient outcomesLevel IVCholecystitisOperative surgeonMulticenter validationGrading scaleGrading systemSpirometry not pain level predicts outcomes in geriatric patients with isolated rib fractures.
Schuster KM, Sanghvi M, O'Connor R, Becher R, Maung AA, Davis KA. Spirometry not pain level predicts outcomes in geriatric patients with isolated rib fractures. Journal Of Trauma And Acute Care Surgery 2020, 89: 947-954. PMID: 32467465, DOI: 10.1097/ta.0000000000002795.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overEmergency Service, HospitalFemaleHand StrengthHospitals, RehabilitationHumansIntensive Care UnitsLength of StayMalePainPain ManagementPain MeasurementPatient DischargePatient TransferPredictive Value of TestsProspective StudiesRib FracturesSpirometryTrauma CentersTreatment OutcomeConceptsLength of stayIsolated rib fracturesNegative inspiratory forceUnplanned ICU admissionRib fracturesPain levelsDay 1ICU admissionInspiratory forceGrip strengthMedian LOSHospital day 1Expiratory volume 1Complete spirometryPain controlDischarge dispositionPulmonary functionEarly dischargeGeriatric patientsVital capacityMean ageSpirometry measuresPulmonary capacityLevel IVFEV1