2018
Heterogeneity 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 indexChanges in Cerebral Cortical Thickness Related to Weight Loss Following Bariatric Surgery
Bohon C, Garcia LC, Morton JM. Changes in Cerebral Cortical Thickness Related to Weight Loss Following Bariatric Surgery. Obesity Surgery 2018, 28: 2578-2582. PMID: 29876838, PMCID: PMC6400222, DOI: 10.1007/s11695-018-3317-6.Peer-Reviewed Original ResearchConceptsCerebral cortical thicknessCortical thicknessBariatric surgeryWeight Loss Following Bariatric SurgeryGreater excess weight lossExcess weight lossCortical gray matterMagnetic resonance imaging dataBrain changesPatientsGray matterSurgeryWeight lossPreliminary evidenceNeurocognitive measuresFurther investigationMemory recallImaging dataPrevious studiesObesityGlobal measuresLarge sampleMonths
2017
A 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 trialsA postoperative nutritional consult improves bariatric surgery outcomes
Garg T, Birge K, Rosas U, Azagury D, Rivas H, Morton JM. A postoperative nutritional consult improves bariatric surgery outcomes. Surgery For Obesity And Related Diseases 2016, 12: 1052-1056. PMID: 27220825, DOI: 10.1016/j.soard.2016.01.008.Peer-Reviewed Original ResearchConceptsInitial postoperative visitPostoperative visitBariatric surgeryPostoperative carePatient outcomesPercent excess weight lossHigh-density lipoprotein cholesterolExcess weight lossBariatric surgery outcomesHigh-density lipoproteinMultivariate logistic modelNutritional consultsSerum thiamineProspective databaseLipoprotein cholesterolMinor complicationsTotal cholesterolSurgery outcomesRetrospective analysisEffective treatmentSurgeryDemographic featuresPatientsSurgeonsWeight loss
2015
The Influence of Resected Gastric Weight upon Weight Loss after Sleeve Gastrectomy
Rosas U, Hines H, Rogan D, Rivas H, Morton J. The Influence of Resected Gastric Weight upon Weight Loss after Sleeve Gastrectomy. The American Surgeon 2015, 81: 1240-1243. PMID: 26736161, DOI: 10.1177/000313481508101225.Peer-Reviewed Original ResearchConceptsCent excess weight lossExcess weight lossGastric weightWeight lossAdequacy of resectionSingle academic institutionUpper tercileGreater initial weightsEnduring treatmentSleeve gastrectomyBariatric surgeryPostoperative dataGastric sleeveSurgical interventionIntraoperative assessmentPatientsOptimal standardizationGastrectomyFurther investigationTercileMonthsPer centPostopResectionObesity
2014
Mesenteric defect closure in laparoscopic Roux-en-Y gastric bypass: a randomized controlled trial
Rosas U, Ahmed S, Leva N, Garg T, Rivas H, Lau J, Russo M, Morton JM. Mesenteric defect closure in laparoscopic Roux-en-Y gastric bypass: a randomized controlled trial. Surgical Endoscopy 2014, 29: 2486-2490. PMID: 25480607, DOI: 10.1007/s00464-014-3970-3.Peer-Reviewed Original ResearchConceptsMesenteric defect closureInternal herniaMesenteric defectDefect closureLaparoscopic RouxGastric bypassComplication rateSignificant differencesPercent excess weight lossExcess weight lossQOL index scoresGI QOLMethods105 patientsGastrointestinal QualityGeneral complicationsInternal herniationOperative timeQOL scoresOpen groupMedical recordsPotential complicationsLRYGBOutcome measuresHigh indexHerniaMorbidity, Mortality, and Weight Loss Outcomes After Reoperative Bariatric Surgery in the USA
Sudan R, Nguyen NT, Hutter MM, Brethauer SA, Ponce J, Morton JM. Morbidity, Mortality, and Weight Loss Outcomes After Reoperative Bariatric Surgery in the USA. Journal Of Gastrointestinal Surgery 2014, 19: 171-179. PMID: 25186073, DOI: 10.1007/s11605-014-2639-5.Peer-Reviewed Original ResearchConceptsReoperative bariatric surgerySevere adverse eventsBariatric operationsPrimary operationAdverse eventsBariatric surgeryMortality ratePercent excess weight lossBariatric Outcomes Longitudinal DatabaseEfficacy of reoperationInitial bariatric operationsExcess weight lossBariatric surgery patientsWeight loss outcomesLength of stayMore African AmericansLarge national studyComplication rateSurgery patientsConversion groupPrimary procedureLoss outcomesReoperationCorrective operationWeight lossEffect of Reversible Intermittent Intra-abdominal Vagal Nerve Blockade on Morbid Obesity: The ReCharge Randomized Clinical Trial
Ikramuddin S, Blackstone RP, Brancatisano A, Toouli J, Shah SN, Wolfe BM, Fujioka K, Maher JW, Swain J, Que FG, Morton JM, Leslie DB, Brancatisano R, Kow L, O’Rourke R, Deveney C, Takata M, Miller CJ, Knudson MB, Tweden KS, Shikora SA, Sarr MG, Billington CJ. Effect of Reversible Intermittent Intra-abdominal Vagal Nerve Blockade on Morbid Obesity: The ReCharge Randomized Clinical Trial. JAMA 2014, 312: 915-922. PMID: 25182100, DOI: 10.1001/jama.2014.10540.Peer-Reviewed Original ResearchConceptsExcess weight lossNerve block groupPrimary safety objectiveWeight lossMorbid obesityAdverse eventsSham groupClinical trialsEfficacy objectiveMean percentage excess weight lossBlock groupPercentage excess weight lossSerious adverse event ratesSham-controlled clinical trialSham device groupVagal nerve blockadeWeight management educationSerious adverse eventsBariatric surgery resultsLong-term morbidityAdverse event ratesObesity-related conditionsNerve block therapyBody mass indexAbdominal pain
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 consentTherapyNormal Alcohol Metabolism after Gastric Banding and Sleeve Gastrectomy: A Case-Cross-Over Trial
Changchien EM, Woodard GA, Hernandez-Boussard T, Morton JM. Normal Alcohol Metabolism after Gastric Banding and Sleeve Gastrectomy: A Case-Cross-Over Trial. Journal Of The American College Of Surgeons 2012, 215: 475-479. PMID: 22770864, DOI: 10.1016/j.jamcollsurg.2012.06.008.Peer-Reviewed Original ResearchConceptsLaparoscopic adjustable gastric bandingLaparoscopic sleeve gastrectomyGastric bypass patientsGastric bandingAlcohol metabolismSleeve gastrectomyBypass patientsPostoperative gastric bypass patientsExcess weight lossAdjustable gastric bandingBariatric surgery patientsViable treatment optionPublic health concernGastric bypassBariatric proceduresBariatric surgeryPreoperative levelsSevere obesitySurgery patientsTreatment optionsPeak BACPatientsDrinking habitsTotal participantsGastrectomyEffect 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
2011
B-type natriuretic peptide increases after gastric bypass surgery and correlates with weight loss
Changchien EM, Ahmed S, Betti F, Higa J, Kiely K, Hernandez-Boussard T, Morton J. B-type natriuretic peptide increases after gastric bypass surgery and correlates with weight loss. Surgical Endoscopy 2011, 25: 2338. PMID: 21424205, DOI: 10.1007/s00464-010-1565-1.Peer-Reviewed Original ResearchConceptsB-type natriuretic peptideGastric bypass surgeryExcess weight lossBypass surgeryWeight lossBNP concentrationsRisk factorsConcentrations of BNPB-type natriuretic peptide increasesLaparoscopic gastric bypass surgerySignificant excess weight lossBackgroundCoronary artery diseaseMean preoperative levelCardiac risk factorsPreventable risk factorsCongestive heart failureIntentional weight lossNatriuretic peptide concentrationsMultivariable linear regressionBNP increaseConclusionGastric bypassGastric bypassPostoperative levelsPreoperative levelsArtery disease
2009
Probiotics 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
2007
Disappointing Weight Loss among Shift Workers after Laparoscopic Gastric Bypass Surgery
Ketchum ES, Morton JM. Disappointing Weight Loss among Shift Workers after Laparoscopic Gastric Bypass Surgery. Obesity Surgery 2007, 17: 581. PMID: 17658014, DOI: 10.1007/s11695-007-9100-8.Peer-Reviewed Original ResearchConceptsShift workersWeight lossBariatric surgeryExcess body weight lossLaparoscopic gastric bypass surgeryPostoperative excess weight lossShift workAltered sleep physiologyExcess weight lossBariatric surgery patientsGastric bypass surgeryPostoperative weight lossRetrospective chart reviewWeight loss outcomesBody weight lossRates of obesityT-testPatterns of sleepStudent's t-testPreoperative BMIGastric bypassLaparoscopic RouxBypass surgeryChart reviewPostoperative periodIs there a benefit to preoperative weight loss in gastric bypass patients? A prospective randomized trial
Alami RS, Morton JM, Schuster R, Lie J, Sanchez BR, Peters A, Curet MJ. Is there a benefit to preoperative weight loss in gastric bypass patients? A prospective randomized trial. Surgery For Obesity And Related Diseases 2007, 3: 141-145. PMID: 17331803, DOI: 10.1016/j.soard.2006.11.006.Peer-Reviewed Original ResearchConceptsPreoperative weight lossNonweight loss groupWeight loss groupGastric bypass surgeryWeight loss requirementsExcess weight lossBody mass indexLoss groupBypass surgeryWeight lossGastric bypassOperative timeMass indexLaparoscopic gastric bypass surgeryPreoperative body mass indexInitial body mass indexGastric bypass patientsPostoperative weight lossLaparoscopic gastric bypassSimilar preoperative characteristicsOperating room timeWeight loss resultsLaparoscopic RouxMorbid obesityPerioperative complications
2005
The Impact of Preoperative Weight Loss in Patients Undergoing Laparoscopic Roux-en-Y Gastric Bypass
Alvarado R, Alami R, Hsu G, Safadi B, Sanchez B, Morton J, Curet M. The Impact of Preoperative Weight Loss in Patients Undergoing Laparoscopic Roux-en-Y Gastric Bypass. Obesity Surgery 2005, 15: 1282-1286. PMID: 16259888, DOI: 10.1381/096089205774512429.Peer-Reviewed Original ResearchConceptsPreoperative weight lossExcess weight lossPostoperative excess weight lossShorter operative timeWeight lossGastric bypassLaparoscopic RouxInitial BMIOperative timeHigher postoperative weight lossPercent excess weight lossPostoperative weight lossY Gastric BypassUnit of BMIPostoperative complicationsPreoperative factorsBariatric surgeryComplication rateBariatric operationsPreoperative lossOutcome measuresRetrospective analysisPatientsLRYGBPBMI
2004
Introducing laparoscopic Roux-en-Y gastric bypass at a Veterans Affairs medical facility
Safadi B, Kieran J, Hall R, Morton J, Bellatorre N, Shinoda E, Johnson P, Curet M, Wren S. Introducing laparoscopic Roux-en-Y gastric bypass at a Veterans Affairs medical facility. The American Journal Of Surgery 2004, 188: 606-610. PMID: 15546580, DOI: 10.1016/j.amjsurg.2004.07.021.Peer-Reviewed Original ResearchMeSH KeywordsAdultAnastomosis, Roux-en-YChi-Square DistributionCohort StudiesFemaleFollow-Up StudiesGastric BypassHospitals, VeteransHumansLaparoscopyLength of StayMaleMiddle AgedMinimally Invasive Surgical ProceduresObesity, MorbidPostoperative ComplicationsProbabilityRetrospective StudiesRisk AssessmentTreatment OutcomeWeight LossConceptsBody mass indexBariatric surgeryMorbid obesityLaparoscopic RYGBGastric bypassLaparoscopic RouxDiabetes mellitusVeterans Affairs Health Care SystemPercent excess weight lossAverage body mass indexGood short-term resultsVA patient populationExcess weight lossObstructive sleep apneaVeterans Affairs medical facilitiesShort-term resultsHealth care systemPreoperative comorbiditiesAcceptable morbidityHospital stayMean followLate complicationsImmediate complicationsRetrospective reviewFemale patients