2024
Collateral Benefit of Systematic Improvement in Bariatric Surgery Outcomes Following a Single Quality Improvement Project for Bleeding
Chao G, Nadzam G, Cheung M, Duffy A, Ghiassi S, Morton J. Collateral Benefit of Systematic Improvement in Bariatric Surgery Outcomes Following a Single Quality Improvement Project for Bleeding. Obesity Surgery 2024, 34: 1041-1044. PMID: 38280157, DOI: 10.1007/s11695-023-07037-9.Peer-Reviewed Original ResearchConceptsQuality improvement projectImprovement projectImprove patient careTargeted quality improvement projectsVenous thromboembolism prophylaxisPatient careRoot cause analysisBariatric surgery outcomesIndications conferencePatient outcomesPostoperative complicationsThromboembolism prophylaxisSurgery outcomesStudy aimCause analysisAdverse outcomesBleedingImprove outcomesOutcomesTechnique standardization
2023
The Degree of Preoperative Hypoalbuminemia Is Associated with Risk of Postoperative Complications in Metabolic and Bariatric Surgery Patients
Ying L, Chao G, Canner J, Graetz E, Ghiassi S, Schwartz J, Zolfaghari E, Schneider E, Gibbs K. The Degree of Preoperative Hypoalbuminemia Is Associated with Risk of Postoperative Complications in Metabolic and Bariatric Surgery Patients. Obesity Surgery 2023, 34: 51-70. PMID: 37994997, DOI: 10.1007/s11695-023-06944-1.Peer-Reviewed Original ResearchConceptsBariatric surgery patientsPostoperative complicationsOdds ratioRevision patientsSurgery patientsRevision surgeryIntensive care unit admissionQuality Improvement Program databaseDegree of hypoalbuminemiaImpact of hypoalbuminemiaPrevalence of hypoalbuminemiaCare unit admissionLaparoscopic sleeve gastrectomyGastric bypass patientsImprovement Program databaseBody mass indexInsulin-dependent diabetesMultivariable logistic regressionAnesthesia classMild hypoalbuminemiaPreoperative hypoalbuminemiaUnit admissionUnplanned intubationPrimary surgerySleeve gastrectomyOut-of-pocket Costs for Commercially-insured Patients in the Years Following Bariatric Surgery
Chao G, Yang J, Thumma J, Chhabra K, Arterburn D, Ryan A, Telem D, Dimick J. Out-of-pocket Costs for Commercially-insured Patients in the Years Following Bariatric Surgery. Annals Of Surgery 2023, 277: e332-e338. PMID: 35129487, PMCID: PMC9091055, DOI: 10.1097/sla.0000000000005291.Peer-Reviewed Original ResearchMeSH KeywordsBariatric SurgeryGastrectomyGastric BypassHealth ExpendituresHumansObesity, MorbidRetrospective StudiesTreatment OutcomeConceptsSleeve gastrectomyBariatric surgeryOOP costsIBM MarketScan Commercial Claims DatabasesProcedure choiceMarketScan Commercial Claims databaseLaparoscopic sleeve gastrectomyBariatric surgery proceduresPostoperative year 1Commercial claims databaseTotal OOP costsYear 1Year 2Year 3Gastric bypassRetrospective studyClaims databaseSurgical episodesInsurance typeOperative yearBACKGROUND DATASurgery proceduresPatientsPrimary analysisClinical contributors
2022
The role of preoperative toxicology screening in patients undergoing bariatric surgery
Chao G, Ying L, Chan S, Alturki N, Aravind P, Thaqi M, Mahmoud A, Morton J. The role of preoperative toxicology screening in patients undergoing bariatric surgery. Surgery For Obesity And Related Diseases 2022, 19: 187-193. PMID: 36443215, DOI: 10.1016/j.soard.2022.10.021.Peer-Reviewed Original ResearchConceptsPreoperative lengthBariatric surgeryToxicology testingWeight lossBariatric surgical populationBody mass indexImportant surgical outcomesAcademic health systemGastric bypassLack of evidenceSurgical populationPostoperative outcomesRetrospective reviewMass indexSurgical outcomesUrine testingPositivity rateMean changePositive testingPatientsNegative testingReadmissionHealth systemChi-squarePositivityBirths After Bariatric Surgery in the United States
Chao G, Yang J, Peahl A, Thumma J, Dimick J, Arterburn D, Telem D. Births After Bariatric Surgery in the United States. Annals Of Surgery 2022, 277: e801-e807. PMID: 35762610, PMCID: PMC9794635, DOI: 10.1097/sla.0000000000005438.Peer-Reviewed Original ResearchConceptsRisk of reinterventionAdverse obstetric outcomesBariatric surgery patientsObstetric outcomesBariatric surgerySurgery patientsFemale patients ages 18Multivariable logistic regression analysisEvent ratesNational US cohortSevere maternal morbidityLaparoscopic sleeve gastrectomyPatients age 18Retrospective cohort studyIBM MarketScan databasesMultivariable logistic regressionKaplan-Meier estimatesLogistic regression analysisIncidence of birthsMaternal safetyDelivery complicationsGastric bypassGestational diabetesHypertensive disordersMaternal morbidityExpectations and experiences following bariatric surgery: Perceptions of female patients across Michigan
Vitous C, Ehlers A, Chao G, Stricklen A, Ross R, Kullgren J, Ghaferi A. Expectations and experiences following bariatric surgery: Perceptions of female patients across Michigan. The American Journal Of Surgery 2022, 224: 1182-1184. PMID: 35595572, DOI: 10.1016/j.amjsurg.2022.05.010.Peer-Reviewed Original ResearchLong-term comparative effectiveness of gastric bypass and sleeve gastrectomy on use of antireflux medication: a difference-in-differences analysis
Howard R, Yang J, Thumma J, Arterburn D, Ryan A, Chao G, Telem D, Dimick J. Long-term comparative effectiveness of gastric bypass and sleeve gastrectomy on use of antireflux medication: a difference-in-differences analysis. Surgery For Obesity And Related Diseases 2022, 18: 1033-1041. PMID: 35649735, DOI: 10.1016/j.soard.2022.04.016.Peer-Reviewed Original ResearchConceptsLong-term comparative effectivenessGERD medication useCommon bariatric operationGastric bypassMedication useSleeve gastrectomyAntireflux medicationComparative effectivenessBariatric surgeryBariatric operationsAntireflux medication useInpatient bariatric surgeryLong-term effectivenessGastroesophageal refluxRetrospective studyNational cohortGastrectomyTreatment decisionsMedicare beneficiariesPatientsSurgeryBypassMedicationsGreater reductionDifferential changesMedication Use for Obesity-Related Comorbidities After Sleeve Gastrectomy or Gastric Bypass
Howard R, Chao G, Yang J, Thumma J, Arterburn D, Telem D, Dimick J. Medication Use for Obesity-Related Comorbidities After Sleeve Gastrectomy or Gastric Bypass. JAMA Surgery 2022, 157: 248-256. PMID: 35019988, PMCID: PMC8756362, DOI: 10.1001/jamasurg.2021.6898.Peer-Reviewed Original ResearchConceptsTime of surgeryGastric bypassMedication discontinuationSleeve gastrectomyCumulative incidenceMedication useHyperlipidemia medicationsComorbidity resolutionLower incidenceCommon bariatric surgical proceduresLipid-lowering medication useComparative effectiveness research studyAdult Medicare beneficiariesDiabetes medication useAntihypertensive medication useLipid-lowering medicationsBariatric surgical proceduresSubset of patientsLong-term trialsAntihypertensive medicationsDiabetes medicationsLaparoscopic RouxBariatric surgeryPrimary outcomeMean ageComparative effectiveness of sleeve gastrectomy vs Roux-en-Y gastric bypass in patients giving birth after bariatric surgery: reinterventions and obstetric outcomes
Chao G, Yang J, Peahl A, Thumma J, Dimick J, Arterburn D, Telem D. Comparative effectiveness of sleeve gastrectomy vs Roux-en-Y gastric bypass in patients giving birth after bariatric surgery: reinterventions and obstetric outcomes. Surgical Endoscopy 2022, 36: 6954-6968. PMID: 35099628, DOI: 10.1007/s00464-022-09063-7.Peer-Reviewed Original ResearchConceptsAdverse obstetric outcomesGastric bypassObstetric outcomesBariatric surgerySleeve gastrectomyComparative effectivenessRisk of reinterventionLaparoscopic sleeve gastrectomyRetrospective cohort studyMultivariable logistic regressionSignificant differencesCommon procedure todayResultsFrom 2011Reintervention rateBariatric proceduresCohort studyIBM MarketScanNational cohortInverse probability weightingGastrectomyReinterventionRouxSurgeryPatientsBypassUnderstanding Racially Diverse Community Member Views of Obesity Stigma and Bariatric Surgery
Chao G, Diaz A, Ghaferi A, Dimick J, Byrnes M. Understanding Racially Diverse Community Member Views of Obesity Stigma and Bariatric Surgery. Obesity Surgery 2022, 32: 1216-1226. PMID: 35088253, PMCID: PMC8794039, DOI: 10.1007/s11695-022-05928-x.Peer-Reviewed Original ResearchQuestioning the legitimacy of bariatric surgery: a qualitative analysis of individuals from the community who qualify for bariatric surgery
Chao G, Diaz A, Ghaferi A, Dimick J, Byrnes M. Questioning the legitimacy of bariatric surgery: a qualitative analysis of individuals from the community who qualify for bariatric surgery. Surgical Endoscopy 2022, 36: 6733-6741. PMID: 34981224, PMCID: PMC8722749, DOI: 10.1007/s00464-021-08949-2.Peer-Reviewed Original ResearchMeSH KeywordsBariatric SurgeryFemaleHispanic or LatinoHumansMaleObesityObesity, MorbidQualitative ResearchWeight LossConceptsBariatric surgeryMedical treatmentWeight loss requirementsInterpretive description frameworkNIH criteriaMajority of participantsDurable therapySurgeryMajority of individualsHealthcare providersDiverse cohortDescriptive studyWeight lossFirst qualitative studyPacific IslandersTreatmentQualitative studyParticipantsDoctorsImportant contributorFinal themeIndividualsObesityPatientsMajor themes
2021
Comparative Safety of Sleeve Gastrectomy and Gastric Bypass Up to 5 Years After Surgery in Patients With Severe Obesity
Howard R, Chao G, Yang J, Thumma J, Chhabra K, Arterburn D, Ryan A, Telem D, Dimick J. Comparative Safety of Sleeve Gastrectomy and Gastric Bypass Up to 5 Years After Surgery in Patients With Severe Obesity. JAMA Surgery 2021, 156: 1160-1169. PMID: 34613354, PMCID: PMC8495604, DOI: 10.1001/jamasurg.2021.4981.Peer-Reviewed Original ResearchConceptsAdjusted hazard ratioSleeve gastrectomyGastric bypassRisk of mortalityCumulative incidenceLong-term riskBariatric surgerySurgical revisionComparative safetyMAIN OUTCOMEUnknown raceLower long-term riskHigher long-term riskUnderwent sleeve gastrectomyRetrospective cohort studyEmergency department useHealth care useLong-term safetyMedicare claims databaseTotal health care spendingCause hospitalizationLaparoscopic RouxCohort studyHazard ratioSecondary outcomesAssociation Between Validated Psychometric Scales and Follow-up Rates After Bariatric Surgery
Chao G, Bonham A, Stricklen A, Ross R, Ghaferi A. Association Between Validated Psychometric Scales and Follow-up Rates After Bariatric Surgery. Obesity Surgery 2021, 31: 5092-5095. PMID: 34494231, DOI: 10.1007/s11695-021-05705-2.Peer-Reviewed Original ResearchVolume–outcome relationships for Roux-en-Y gastric bypass patients in the sleeve gastrectomy era
Chao G, Yang J, Thumma J, Chhabra K, Arterburn D, Ryan A, Telem D, Dimick J. Volume–outcome relationships for Roux-en-Y gastric bypass patients in the sleeve gastrectomy era. Surgical Endoscopy 2021, 36: 3884-3892. PMID: 34471980, DOI: 10.1007/s00464-021-08705-6.Peer-Reviewed Original ResearchDoes Bariatric Surgery Prevent Cancer?
Chao G, Urbach D. Does Bariatric Surgery Prevent Cancer? Annals Of Surgery 2021, 275: 7-8. PMID: 34387211, DOI: 10.1097/sla.0000000000005171.Peer-Reviewed Original ResearchHow do Patients Access Bariatric Surgery? An Analysis of Referrals to a Large Academic Medical Center
Jabour S, Griauzde D, Chao G, Ehlers A. How do Patients Access Bariatric Surgery? An Analysis of Referrals to a Large Academic Medical Center. Obesity Surgery 2021, 31: 4662-4665. PMID: 34296369, DOI: 10.1007/s11695-021-05584-7.Peer-Reviewed Original ResearchFinancial Incentives to Improve Patient Follow-up and Weight Loss After Bariatric Surgery
Chao G, Kullgren J, Ross R, Bonham A, Ghaferi A. Financial Incentives to Improve Patient Follow-up and Weight Loss After Bariatric Surgery. Annals Of Surgery 2021, 277: e70-e77. PMID: 34171878, DOI: 10.1097/sla.0000000000005013.Peer-Reviewed Original ResearchMeSH KeywordsBariatric SurgeryBody Mass IndexFollow-Up StudiesHumansMotivationObesity, MorbidWeight LossConceptsExcess weight lossBariatric surgeryWeight lossSurgery datePercent excess weight lossPostoperative months 1Financial incentive programsBody mass indexGreater weight lossPostintervention patientsPractice patientsPostoperative appointmentsContemporary patientsMass indexMonths 1Control practicesHistoric patientsPatientsSurgeryControl groupHealth outcomesHistoric groupPrior visitMonthsSignificant differencesComment on: Unequal rates of postoperative complications in relatively healthy bariatric surgical patients of White and Black race
Chao G, Guerra M, Jean R. Comment on: Unequal rates of postoperative complications in relatively healthy bariatric surgical patients of White and Black race. Surgery For Obesity And Related Diseases 2021, 17: e38-e39. PMID: 34090819, DOI: 10.1016/j.soard.2021.05.016.Peer-Reviewed Original ResearchPatient-reported Comorbidity Assessment After Bariatric Surgery
Chao G, Bonham A, Ross R, Stricklen A, Ghaferi A. Patient-reported Comorbidity Assessment After Bariatric Surgery. Annals Of Surgery 2021, 276: e792-e797. PMID: 33914479, DOI: 10.1097/sla.0000000000004841.Peer-Reviewed Original ResearchConceptsGastroesophageal reflux diseaseObstructive sleep apneaComorbidity assessmentPostoperative questionnaireBariatric surgerySleep apneaBariatric surgery patientsMedical chart auditLong-term outcomesLong-term efficacyCross-sectional studyPostoperative comorbiditiesGastric bypassReflux diseasePatient comorbiditiesSurgery patientsSurgical patientsChart auditPatient reportsBACKGROUND DATAComorbiditiesPatientsResponse rateΚ statisticMean difference
2020
Bariatric Surgery in Medicare Patients
Chao G, Chhabra K, Yang J, Thumma J, Arterburn D, Ryan A, Telem D, Dimick J. Bariatric Surgery in Medicare Patients. Annals Of Surgery 2020, 276: 133-139. PMID: 33214440, PMCID: PMC8126578, DOI: 10.1097/sla.0000000000004526.Peer-Reviewed Original ResearchConceptsBariatric surgeryED utilizationHealthcare utilizationClinical safety outcomesMedicare Evidence DevelopmentBariatric surgery patientsTreatment effectsGastric bypassSurgery patientsMedicare cohortBariatric outcomesMedicare patientsHernia repairMedicare claimsSafety outcomesMedicare beneficiariesComparative effectivenessBypassSurgeryInstrumental variable analysisEvidence developmentReinterventionRehospitalizationComplicationsPatients