2020
Correlating actual one-year weight loss with predicted weight loss by the MBSAQIP: bariatric surgical risk/benefit calculator
Zhou R, Ying L, Valle J, Moore J, Nadzam G, Roberts K, Ghiassi S, Morton J, Duffy A. Correlating actual one-year weight loss with predicted weight loss by the MBSAQIP: bariatric surgical risk/benefit calculator. Surgical Endoscopy 2020, 35: 5705-5708. PMID: 32968922, DOI: 10.1007/s00464-020-08030-4.Peer-Reviewed Original ResearchMeSH KeywordsBariatric SurgeryBody Mass IndexHumansObesityObesity, MorbidRetrospective StudiesRisk AssessmentTreatment OutcomeWeight LossConceptsHigher preoperative BMIBariatric surgeryWeight lossActual weight lossPreoperative BMIOne-year weight lossYale-New Haven HospitalNational databasePatient preoperative informationMethodsA retrospective reviewBody mass indexBackgroundThe American SocietyNew Haven HospitalUnpaired t-testObese patientsPatient factorsRetrospective reviewMass indexPreoperative discussionPreoperative informationBMI pointsBMIPatientsInformed consentSurgery
2019
Assessment of obesity prevalence and validity of obesity diagnoses coded in claims data for selected surgical populations
Ammann EM, Kalsekar I, Yoo A, Scamuffa R, Hsiao CW, Stokes AC, Morton JM, Johnston SS. Assessment of obesity prevalence and validity of obesity diagnoses coded in claims data for selected surgical populations. Medicine 2019, 98: e16438. PMID: 31335698, PMCID: PMC6709187, DOI: 10.1097/md.0000000000016438.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedArthroplasty, Replacement, KneeBariatric SurgeryBody Mass IndexCatheter AblationClinical CodingElectronic Health RecordsFemaleHerniorrhaphyHumansMaleMiddle AgedObesityOutcome Assessment, Health CarePatient SelectionPrevalencePrognosisReproducibility of ResultsRetrospective StudiesUnited StatesConceptsBody mass indexPositive predictive valueBariatric surgeryDiagnosis codesElectronic health recordsSurgical populationClaims dataHernia repairObesity diagnosisPrognostic factorsSurgical outcomesInterpretation of studiesCardiac ablationPatient body mass indexMeasured body mass indexHigh positive predictive valueImportant prognostic factorType of surgeryAdministrative healthcare dataAdministrative claims dataFalse positive patientsPatient ageMass indexPatient selectionIndex procedure
2018
Comorbidity Remission Following Intragastric Dual Balloon Placement
Garcia L, Vajanaphanich S, Morton JM. Comorbidity Remission Following Intragastric Dual Balloon Placement. Obesity Surgery 2018, 29: 353-355. PMID: 30382461, DOI: 10.1007/s11695-018-3564-6.Peer-Reviewed Original ResearchConceptsComorbidity remissionBalloon placementDual balloonWeight lossWeight loss 6Treatment of obesityEarly-stage obesityBalloon insertionBiochemical improvementBlood pressureSingle institutionLipid profileEfficacious interventionsDemographic dataPatientsRemissionObesityMonthsSignificant improvementBalloonBiochemical dataPlacementHeterogeneity of weight loss after gastric bypass, sleeve gastrectomy, and adjustable gastric banding
Azagury D, Mokhtari TE, Garcia L, Rosas US, Garg T, Rivas H, Morton J. Heterogeneity of weight loss after gastric bypass, sleeve gastrectomy, and adjustable gastric banding. Surgery 2018, 165: 565-570. PMID: 30316577, DOI: 10.1016/j.surg.2018.08.023.Peer-Reviewed Original ResearchConceptsLaparoscopic adjustable gastric bandingPercent excess weight lossAdjustable gastric bandingExcess weight lossLaparoscopic sleeve gastrectomySuccessful treatment effectGastric bandingLaparoscopic RouxGastric bypassSleeve gastrectomyOdds ratioWeight lossTreatment effectsMean percent excess weight lossLong-term weight lossLaparoscopic adjustable gastricBody mass indexSingle academic institutionSubstantial weight lossAdjustable gastricPostoperative BMIBariatric proceduresObese patientsConsecutive patientsMass index
2017
Obesity in America
Rosenthal RJ, Morton J, Brethauer S, Mattar S, De Maria E, Benz JK, Titus J, Sterrett D. Obesity in America. Surgery For Obesity And Related Diseases 2017, 13: 1643-1650. PMID: 28935198, DOI: 10.1016/j.soard.2017.08.002.Peer-Reviewed Original ResearchConceptsPrevalence of obesityDisease of obesityBest treatment modalityTreatment of obesityUS household populationConsequences of obesityGeneral US populationSerious health problemHIV infectionExcess weightObesity treatmentTreatment modalitiesTreatment optionsUniversity HospitalHeart diseaseObese AmericansEarly deathObesityHealth problemsUS populationMental illnessDiseaseWeight lossProbability-based panelOversamples of blacksA multidisciplinary approach to laparoscopic sleeve gastrectomy among multiethnic adolescents in the United States
Jaramillo JD, Snyder E, Farrales S, Stevens M, Wall JK, Chao S, Morton J, Pratt JS, Hammer L, Shepard WE, Bruzoni M. A multidisciplinary approach to laparoscopic sleeve gastrectomy among multiethnic adolescents in the United States. Journal Of Pediatric Surgery 2017, 52: 1606-1609. PMID: 28697852, DOI: 10.1016/j.jpedsurg.2017.06.021.Peer-Reviewed Original ResearchConceptsLaparoscopic sleeve gastrectomySleeve gastrectomyObese adolescentsPercent excess weight lossNonalcoholic fatty liver diseaseWeight lossComorbidity resolution rateMorbidly obese adolescentsResolution of comorbiditiesExcess weight lossExcess body weightSerious public health problemDescriptive case seriesFatty liver diseaseOccurrence of complicationsPublic health problemMorbid obesityProspective databaseSurgical complicationsPrimary outcomeCase seriesComorbid conditionsLiver diseaseRetrospective studyMean age
2016
Influence of Weight Loss Attempts on Bariatric Surgery Outcomes
Deb S, Voller L, Palisch C, Ceja O, Turner W, Rivas H, Morton JM. Influence of Weight Loss Attempts on Bariatric Surgery Outcomes. The American Surgeon 2016, 82: 916-920. PMID: 27779973, DOI: 10.1177/000313481608201012.Peer-Reviewed Original ResearchConceptsBody mass indexWeight loss attemptsPreoperative body mass indexWeight loss outcomesWeight lossLoss outcomesLong-term weight loss outcomesPrior weight loss attemptsNonsurgical weight lossExcess weight lossBariatric surgery patientsBariatric surgery outcomesGraphPad Prism 6Spearman correlation testBariatric proceduresBariatric surgerySurgery patientsMass indexSurgery outcomesClinic assessmentPatient's chanceSignificant negative correlationAverage durationSurgeryMean numberEffect of Vagal Nerve Blockade on Moderate Obesity with an Obesity-Related Comorbid Condition: the ReCharge Study
Morton JM, Shah SN, Wolfe BM, Apovian CM, Miller CJ, Tweden KS, Billington CJ, Shikora SA. Effect of Vagal Nerve Blockade on Moderate Obesity with an Obesity-Related Comorbid Condition: the ReCharge Study. Obesity Surgery 2016, 26: 983-989. PMID: 27048437, PMCID: PMC4831996, DOI: 10.1007/s11695-016-2143-y.Peer-Reviewed Original ResearchConceptsObesity-related comorbid conditionsBody mass indexModerate obesityComorbid conditionsPercentage excess weight lossWeight lossImplant site painVagal nerve blockadeCommon adverse eventsExcess weight lossObesity-related comorbiditiesWeight management counselingType 2 diabetesGreater weight lossSite painAdverse eventsBlockade therapyPrespecified subgroupsSevere obesitySham deviceMass indexNerve blockadeSleep apneaSafety profileClinical trialsNational prevalence, causes, and risk factors for bariatric surgery readmissions
Garg T, Rosas U, Rivas H, Azagury D, Morton JM. National prevalence, causes, and risk factors for bariatric surgery readmissions. The American Journal Of Surgery 2016, 212: 76-80. PMID: 27133197, DOI: 10.1016/j.amjsurg.2016.01.023.Peer-Reviewed Original ResearchMeSH KeywordsAdultAge DistributionBariatric SurgeryBody Mass IndexDatabases, FactualFemaleGastrectomyGastric BypassGastroplastyHumansLaparoscopyLogistic ModelsMaleMiddle AgedMultivariate AnalysisObesity, MorbidOutcome Assessment, Health CarePatient ReadmissionPostoperative ComplicationsPrevalencePrognosisRetrospective StudiesRisk FactorsSex DistributionUnited StatesConceptsLaparoscopic adjustable gastric bandingAdjustable gastric bandingLaparoscopic sleeve gastrectomyGastric bandingGastric bypassLaparoscopic RouxSleeve gastrectomyBariatric surgeryChronic obstructive pulmonary diseaseObstructive pulmonary diseaseBody mass indexAfrican American raceLength of stayCurrent Procedure Terminology codesCommon readmissionReadmitted patientsPulmonary diseaseMass indexOperative timeRisk factorsNational prevalenceReadmissionTerminology codesPatientsPublic Use File
2013
Metabolic Surgery for Type 2 Diabetes in BMI <35: A Surgeon’s View
Scharf K, Morton J. Metabolic Surgery for Type 2 Diabetes in BMI <35: A Surgeon’s View. Obesity Surgery 2013, 24: 144-145. PMID: 24155110, DOI: 10.1007/s11695-013-1098-5.Peer-Reviewed Original ResearchInfluence of Ethnicity on the Efficacy and Utilization of Bariatric Surgery in the USA
Sudan R, Winegar D, Thomas S, Morton J. Influence of Ethnicity on the Efficacy and Utilization of Bariatric Surgery in the USA. Journal Of Gastrointestinal Surgery 2013, 18: 130-136. PMID: 24101449, DOI: 10.1007/s11605-013-2368-1.Peer-Reviewed Original ResearchMeSH KeywordsAdultAge FactorsBlack or African AmericanBody Mass IndexComorbidityDatabases, FactualDiabetes MellitusEthnicityFemaleFollow-Up StudiesGastric BypassGastroesophageal RefluxHealth Status DisparitiesHispanic or LatinoHumansHyperlipidemiasHypertensionLongitudinal StudiesMaleMiddle AgedObesitySleep Apnea, ObstructiveTreatment OutcomeUnited StatesWhite PeopleConceptsBaseline characteristicsThirty-day mortality rateBariatric Outcomes Longitudinal DatabaseGastric bypass surgerySerious adverse eventsPearson's chi-square testChi-square testPatterns of utilizationSmaller percent declineComorbidity burdenBariatric surgeryStudy patientsUnderwent surgeryAdverse eventsBypass surgeryMortality rateInfluence of ethnicityEthnic disparitiesHeavier BMIRYGBSurgeryCategorical variablesComorbiditiesBMIT-test
2012
The EMPOWER Study: Randomized, Prospective, Double-Blind, Multicenter Trial of Vagal Blockade to Induce Weight Loss in Morbid Obesity
Sarr MG, Billington CJ, Brancatisano R, Brancatisano A, Toouli J, Kow L, Nguyen NT, Blackstone R, Maher JW, Shikora S, Reeds DN, Eagon JC, Wolfe BM, O’Rourke R, Fujioka K, Takata M, Swain JM, Morton JM, Ikramuddin S, Schweitzer M, Chand B, Rosenthal R, The EMPOWER Study Group. The EMPOWER Study: Randomized, Prospective, Double-Blind, Multicenter Trial of Vagal Blockade to Induce Weight Loss in Morbid Obesity. Obesity Surgery 2012, 22: 1771-1782. PMID: 22956251, DOI: 10.1007/s11695-012-0751-8.Peer-Reviewed Original ResearchConceptsImportant weight lossControl groupWeight lossMorbid obesityVagal blockadePercent excess weight lossSubdiaphragmatic vagal nerveExcess weight lossSerious adverse eventsDuration of therapyDevice-related complicationsBody mass indexMain outcome measuresDevice useResultsStudy subjectsVagal transmissionAdverse eventsVagal nerveMulticenter trialMass indexFeasibility trialEMPOWER studyOutcome measuresInformed consentTherapyEffect of Roux-en-Y gastric bypass on testosterone and prostate-specific antigen
Woodard G, Ahmed S, Podelski V, Hernandez-Boussard T, Presti J, Morton J. Effect of Roux-en-Y gastric bypass on testosterone and prostate-specific antigen. British Journal Of Surgery 2012, 99: 693-698. PMID: 22302466, DOI: 10.1002/bjs.8693.Peer-Reviewed Original ResearchConceptsProstate-specific antigenBody mass indexPSA levelsObese menGastric bypassSerum levelsWeight lossTestosterone levelsPSA massPercentage excess weight lossPlasma volumeExcess weight lossEffects of RouxSerum PSA levelsLow serum levelsSerum testosterone levelsConsecutive menMass indexSerum testosteroneProstate cancerMAIN OUTCOMETestosteroneDHEARYGBLongitudinal study
2010
Impaired Alcohol Metabolism after Gastric Bypass Surgery: A Case-Crossover Trial
Woodard GA, Downey J, Hernandez-Boussard T, Morton JM. Impaired Alcohol Metabolism after Gastric Bypass Surgery: A Case-Crossover Trial. Journal Of The American College Of Surgeons 2010, 212: 209-214. PMID: 21183366, DOI: 10.1016/j.jamcollsurg.2010.09.020.Peer-Reviewed Original ResearchConceptsGastric bypass surgeryBypass surgeryAlcohol metabolismBreath alcohol contentCase-crossover trialsGastric bypass patientsCase-crossover designEnduring treatmentRYGB patientsGastric bypassBariatric surgeryBypass patientsPreoperative levelsPublic health crisisSevere obesityPostoperative patientsPatientsDouble visionSurgeryDrinking habitsLess alcoholMonthsHealth crisisPoor psychological adjustmentIndustrialized worldOne Year Improvements in Cardiovascular Risk Factors: a Comparative Trial of Laparoscopic Roux-en-Y Gastric Bypass vs. Adjustable Gastric Banding
Woodard GA, Peraza J, Bravo S, Toplosky L, Hernandez-Boussard T, Morton JM. One Year Improvements in Cardiovascular Risk Factors: a Comparative Trial of Laparoscopic Roux-en-Y Gastric Bypass vs. Adjustable Gastric Banding. Obesity Surgery 2010, 20: 578-582. PMID: 20186576, DOI: 10.1007/s11695-010-0088-0.Peer-Reviewed Original ResearchConceptsBiochemical cardiovascular risk factorsLaparoscopic adjustable gastric bandingAdjustable gastric bandingCardiovascular risk factorsTotal cholesterolRisk factorsGastric bandingGastric bypassHs-CRPLipoprotein cholesterolExcess weightHigh-sensitivity C-reactive proteinLow-density lipoprotein cholesterolSensitivity C-reactive proteinHigh-density lipoprotein cholesterolBackgroundCoronary artery diseaseConsecutive bariatric patientsPreventable risk factorsY Gastric BypassC-reactive proteinSingle academic institutionCause of deathSignificant weight lossPost-op valuesSignificant improvement
2009
Differential Intra-abdominal Adipose Tissue Profiling in Obese, Insulin-resistant Women
Liu A, McLaughlin T, Liu T, Sherman A, Yee G, Abbasi F, Lamendola C, Morton J, Cushman SW, Reaven GM, Tsao PS. Differential Intra-abdominal Adipose Tissue Profiling in Obese, Insulin-resistant Women. Obesity Surgery 2009, 19: 1564. PMID: 19711137, PMCID: PMC3181138, DOI: 10.1007/s11695-009-9949-9.Peer-Reviewed Original ResearchConceptsVisceral adipose tissueSubcutaneous adipose tissueBody mass indexInflammatory activityAdipose tissueIR individualsAbdominal subcutaneous adipose tissueOmental visceral adipose tissueInsulin-resistant womenInsulin suppression testDegree of adiposityInsulin-sensitive individualsReal-time polymerase chain reactionQuantitative real-time polymerase chain reactionAdipocyte differentiation genesRegional fat storageIR womenBeckman Coulter MultisizerSmall adipose cellsBariatric surgeryObese womenObese/Mass indexLarge cellsAdipocyte hypertrophyProbiotics Improve Outcomes After Roux-en-Y Gastric Bypass Surgery: A Prospective Randomized Trial
Woodard GA, Encarnacion B, Downey JR, Peraza J, Chong K, Hernandez-Boussard T, Morton JM. Probiotics Improve Outcomes After Roux-en-Y Gastric Bypass Surgery: A Prospective Randomized Trial. Journal Of Gastrointestinal Surgery 2009, 13: 1198-1204. PMID: 19381735, DOI: 10.1007/s11605-009-0891-x.Peer-Reviewed Original ResearchMeSH KeywordsAdultBody Mass IndexConfidence IntervalsDose-Response Relationship, DrugDrug Administration ScheduleFemaleFollow-Up StudiesGastric BypassHumansMaleMiddle AgedObesity, MorbidPatient SatisfactionPostoperative CarePostoperative ComplicationsProbabilityProbioticsProspective StudiesReference ValuesRisk AssessmentTreatment OutcomeWeight LossConceptsGastric bypass surgeryBacterial overgrowthProbiotic groupControl groupWeight lossBypass surgeryGreater percent excess weight lossPercent excess weight lossY Gastric Bypass SurgeryExcess weight lossProspective randomized trialsVitamin B12 levelsMethodsForty-four patientsQuality of lifeEnduring treatmentGastric bypassMorbid obesityB12 levelsPostoperative changesResultsAt 6Randomized trialsVitamin B12 availabilityProbiotic administrationGastrointestinal floraGI microbiota
2008
Benefits to Patients Choosing Preoperative Weight Loss in Gastric Bypass Surgery: New Results of a Randomized Trial
Solomon H, Liu GY, Alami R, Morton J, Curet MJ. Benefits to Patients Choosing Preoperative Weight Loss in Gastric Bypass Surgery: New Results of a Randomized Trial. Journal Of The American College Of Surgeons 2008, 208: 241-245. PMID: 19228536, DOI: 10.1016/j.jamcollsurg.2008.09.028.Peer-Reviewed Original ResearchConceptsPreoperative weight lossGastric bypass surgeryBody mass indexExcess body weightWeight loss groupBypass surgeryBody weightWeight lossPostoperative complicationsClinical outcomesStanford University Medical CenterImprovement of comorbiditiesNonweight loss groupSimilar preoperative demographicsWeight loss requirementsPatients' clinical outcomesUniversity Medical CenterPreoperative demographicsPatient demographicsConsecutive patientsMass indexMedical CenterLiver massPatientsSurgeryBariatric Surgery in Patients With Morbid Obesity and Type 2 Diabetes
Schernthaner G, Morton JM. Bariatric Surgery in Patients With Morbid Obesity and Type 2 Diabetes. Diabetes Care 2008, 31: s297-s302. PMID: 18227500, DOI: 10.2337/dc08-s270.Peer-Reviewed Original Research
2007
Does gastric bypass alter alcohol metabolism?
Hagedorn JC, Encarnacion B, Brat GA, Morton JM. Does gastric bypass alter alcohol metabolism? Surgery For Obesity And Related Diseases 2007, 3: 543-548. PMID: 17903777, DOI: 10.1016/j.soard.2007.07.003.Peer-Reviewed Original ResearchMeSH KeywordsAdultBody Mass IndexBreath TestsEthanolFemaleGastric BypassHumansMaleMiddle AgedObesity, MorbidPostoperative PeriodConceptsGastric bypass patientsGastric bypass groupBypass patientsBypass groupAlcohol metabolismBreath levelsControl groupBody mass index lossPostoperative gastric bypass patientsAlcohol levelsBody mass indexGastric bypassMorbid obesityBariatric surgeryPublic health crisisMass indexControl subjectsMore symptomsPatientsSymptom profilesIndex lossAlcohol useAverage timeBypassSymptoms