2024
Weight Nadir and Long-Term Weight Outcomes After Laparoscopic Sleeve Gastrectomy in a Diverse Cohort of Adolescents and Young Adults
Hornick M, Chao G, Ying L, Nadzam G, Duffy A, Ghiassi S, Graetz E, Gibbs K, Morton J. Weight Nadir and Long-Term Weight Outcomes After Laparoscopic Sleeve Gastrectomy in a Diverse Cohort of Adolescents and Young Adults. Obesity Surgery 2024, 1-9. PMID: 38935262, DOI: 10.1007/s11695-024-07374-3.Peer-Reviewed Original ResearchPreoperative weightSleeve gastrectomyWeight nadirWeight outcomesIntroductionLaparoscopic sleeve gastrectomyLaparoscopic sleeve gastrectomyGroup of patientsWeight loss strategiesYoung adultsDiverse group of patientsCohort of adolescentsLongitudinal weight dataBariatric proceduresFollow-upNon-Hispanic blacksLoss strategiesMedical recordsPatientsTWLLSGWeight dataWeight recurrenceDiverse cohortGastrectomyWeight changeOutcomes of SADI and OAGB Compared to RYGB from the Metabolic and Bariatric Surgery Quality Improvement Program: The North American Experience
Chao G, Canner J, Hamid S, Ying L, Ghiassi S, Schwartz J, Gibbs K. Outcomes of SADI and OAGB Compared to RYGB from the Metabolic and Bariatric Surgery Quality Improvement Program: The North American Experience. Obesity Surgery 2024, 34: 337-346. PMID: 38170422, DOI: 10.1007/s11695-023-07019-x.Peer-Reviewed Original ResearchSleeve gastrectomyQuality Improvement Program databaseBariatric surgery casesImprovement Program databaseHigh complication rateStaple line leakBariatric-metabolic surgerySpecific patient needsDesire of patientsQuality Improvement ProgramBowel obstructionGastric bypassGastrointestinal bleedingComplication rateOAGBProgram databaseSurgery casesRYGBAnastomosis techniqueRobotic casesBetter outcomesPatient needsPatientsLogistic regressionOutcomes
2023
A qualitative analysis describing attrition from bariatric surgery to identify strategies for improving retention in patients who desire treatment
Chao G, Lindquist K, Vitous C, Tolentino D, Delaney L, Alimi Y, Jafri S, Telem D. A qualitative analysis describing attrition from bariatric surgery to identify strategies for improving retention in patients who desire treatment. Surgical Endoscopy 2023, 37: 6032-6043. PMID: 37103571, PMCID: PMC10136401, DOI: 10.1007/s00464-023-10030-z.Peer-Reviewed Original ResearchConceptsBariatric surgeryBariatric surgery programFear of surgeryTheoretical Domains FrameworkSurgery programSerious chronic diseaseFuture theory-based interventionsNon-Hispanic whitesBackgroundAmong patientsResultsTwenty patientsTheory-based interventionChronic diseasesPatientsSurgeryClinical sitesConclusionsThis studyAnticipated regretTDF domainsDomains FrameworkIntervention designHealthy lifeSocial rolesDropout rateEnvironmental contextTreatmentOut-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 ResearchConceptsSleeve 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-squarePositivityVariation in pre-operative insurance requirements for bariatric surgery
Gomez-Rexrode A, Chhabra K, Telem D, Chao G. Variation in pre-operative insurance requirements for bariatric surgery. Surgical Endoscopy 2022, 36: 8358-8363. PMID: 35513536, DOI: 10.1007/s00464-022-09293-9.Peer-Reviewed Original ResearchConceptsBariatric surgeryInsurance typePoisson regressionInsurance plan typeBariatric surgery programLife-saving interventionsCross-sectional assessmentPlan typeBackgroundFor patientsSecondary outcomesPrimary outcomeU.S. Census regionSurgery programMedicaid plansPatientsSurgeryWeight lossMedicaidNumber of monthsInsurance plansCommercial plansCensus regionGreater frequencyInsurance requirementsGreater numberLong-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 changesFemale Patient Perceptions on Financial Incentives to Promote Follow-Up After Bariatric Surgery
Ehlers A, Vitous C, Chao G, Stricklen A, Ross R, Kullgren J, Ghaferi A. Female Patient Perceptions on Financial Incentives to Promote Follow-Up After Bariatric Surgery. Journal Of Surgical Research 2022, 276: 195-202. PMID: 35366424, DOI: 10.1016/j.jss.2022.02.027.Peer-Reviewed Original ResearchComparative 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 weightingGastrectomyReinterventionRouxSurgeryPatientsBypassQuestioning 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 ResearchConceptsBariatric surgeryMedical treatmentWeight loss requirementsInterpretive description frameworkNIH criteriaMajority of participantsDurable therapySurgeryMajority of individualsHealthcare providersDiverse cohortDescriptive studyWeight lossFirst qualitative studyPacific IslandersTreatmentQualitative studyParticipantsDoctorsImportant contributorFinal themeIndividualsObesityPatientsMajor themes
2021
Venous thromboembolism: risk factors in the sleeve gastrectomy era
Chao G, Montgomery J, Abou Azar S, Telem D. Venous thromboembolism: risk factors in the sleeve gastrectomy era. Surgery For Obesity And Related Diseases 2021, 17: 1905-1911. PMID: 34389247, DOI: 10.1016/j.soard.2021.06.022.Peer-Reviewed Original ResearchConceptsHistory of VTEPostoperative venous thromboembolismBody mass indexVenous thromboembolismRisk factorsBlack patientsPreoperative body mass indexHigh-risk patientsBariatric Surgery AccreditationMultivariable logistic regressionVenous stasis diseaseQuality Improvement ProgramProlonged prophylaxisBariatric surgeryMultivariable analysisOperative timeMass indexOperative lengthProcedure typeWhite racePrevious historyPatientsSurgery dataLogistic regressionHealth equityUse of Telehealth by Surgical Specialties During the COVID-19 Pandemic
Chao G, Li K, Zhu Z, McCullough J, Thompson M, Claflin J, Fliegner M, Steppe E, Ryan A, Ellimoottil C. Use of Telehealth by Surgical Specialties During the COVID-19 Pandemic. Obstetrical & Gynecological Survey 2021, 76: 410-412. DOI: 10.1097/01.ogx.0000767224.19385.74.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 ResearchConceptsExcess 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 ResearchAsian American Pacific Islander Representation in Outcomes Research: NSQIP Scoping Review
Chao GF, Emlaw J, Chiu AS, Yang J, Thumma J, Brackett A, Pei KY. Asian American Pacific Islander Representation in Outcomes Research: NSQIP Scoping Review. Journal Of The American College Of Surgeons 2021, 232: 682-689.e5. PMID: 33705984, DOI: 10.1016/j.jamcollsurg.2021.01.015.Peer-Reviewed Original ResearchConceptsSurgical outcomes researchOutcomes researchMultivariable logistic regressionHealth services researchWeb of ScienceNSQIP dataPatient outcomesProportion of studiesAuthors' institutionPatientsBetter careLogistic regressionStudy characteristicsHealth equityDemographic characteristicsNSQIPPacific IslandersScoping ReviewSeparate groupsOne-thirdServices researchPublication yearAssociationAAPI populationReviewPatient-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 developmentReinterventionRehospitalizationComplicationsPatientsComparative Safety of Sleeve Gastrectomy and Gastric Bypass
Chhabra K, Telem D, Chao G, Arterburn D, Yang J, Thumma J, Ryan A, Blumenthal B, Dimick J. Comparative Safety of Sleeve Gastrectomy and Gastric Bypass. Annals Of Surgery 2020, 275: 539-545. PMID: 33201113, DOI: 10.1097/sla.0000000000004297.Peer-Reviewed Original ResearchConceptsSleeve gastrectomyGastric bypassBariatric surgeryIBM MarketScanLarge cohortCommon bariatric operationBariatric surgery patientsSelection biasSuperior safety profileLong-term safetyOverall healthcare spendingGastroesophageal refluxSurgery patientsBariatric operationsSafety profileComparative safetyGastrectomyBACKGROUND DATAHigh riskInternational ClassificationPatientsSurgeryPayer decisionsBypassProcedural TerminologyConvergent Mixed Methods Exploration of Telehealth in Bariatric Surgery: Maximizing Provider Resources and Access
Chao GF, Ehlers AP, Ellimoottil C, Varban OA, Dimick JB, Telem DA. Convergent Mixed Methods Exploration of Telehealth in Bariatric Surgery: Maximizing Provider Resources and Access. Obesity Surgery 2020, 31: 1877-1881. PMID: 33111249, PMCID: PMC7591243, DOI: 10.1007/s11695-020-05059-1.Peer-Reviewed Original ResearchConceptsBariatric surgery processBariatric surgery programHealthcare resource utilizationCare delivery modalitiesSelf-reported weightSurgery processSurgery visitsUS healthcare systemBariatric surgeryTelehealth visitsTelehealth useSurgery programTelehealth implementationShow ratesProvider perspectivesHealthcare systemTelehealthDelivery modalitiesPrior yearVisitsInsurance providersCoverage decisionsMixed methods explorationPatientsSurgery