2021
The Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program bariatric surgical risk/benefit calculator: 30-day risk
Grieco A, Huffman KM, Cohen ME, Hall BL, Morton JM, Ko CY. The Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program bariatric surgical risk/benefit calculator: 30-day risk. Surgery For Obesity And Related Diseases 2021, 17: 1117-1124. PMID: 33773930, DOI: 10.1016/j.soard.2021.02.005.Peer-Reviewed Original ResearchConceptsBariatric Surgery AccreditationLaparoscopic adjustable gastric bandCo-morbidity remissionLaparoscopic sleeve gastrectomyAdjustable gastric bandSurgical care teamQuality Improvement ProgramLogistic regression modelsClinical data registryMBSAQIP dataLaparoscopic RouxBariatric surgeryBiliopancreatic diversionGastric bandGastric bypassSleeve gastrectomyAdult patientsDuodenal switchPostoperative riskRisk calculatorCare teamAmerican CollegeData registryExcellent calibrationRisk features
2019
Using Machine Learning Applied to Real-World Healthcare Data for Predictive Analytics: An Applied Example in Bariatric Surgery
Johnston SS, Morton JM, Kalsekar I, Ammann EM, Hsiao CW, Reps J. Using Machine Learning Applied to Real-World Healthcare Data for Predictive Analytics: An Applied Example in Bariatric Surgery. Value In Health 2019, 22: 580-586. PMID: 31104738, DOI: 10.1016/j.jval.2019.01.011.Peer-Reviewed Original ResearchConceptsLarge US healthcare claims databasesLaparoscopic metabolic surgeryHealthcare claims databasesType 2 diabetesStudy inclusion criteriaLogistic regression modelsDays postindexMedication cessationBariatric surgeryMetabolic surgeryT2D diagnosisCessation ratesPatient selectionMedication treatmentClaims databaseInclusion criteriaTreatment responseDiscriminative accuracyPatientsExternal validationSurgeryRegression modelsHealthcare dataTreatmentUseful predictive models
2014
Is Ambulatory Laparoscopic Roux-En-Y Gastric Bypass Associated With Higher Adverse Events?
Morton JM, Winegar D, Blackstone R, Wolfe B. Is Ambulatory Laparoscopic Roux-En-Y Gastric Bypass Associated With Higher Adverse Events? Annals Of Surgery 2014, 259: 286-292. PMID: 24169190, DOI: 10.1097/sla.0000000000000227.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAmbulatory Surgical ProceduresDatabases, FactualFemaleGastric BypassHumansLaparoscopyLength of StayLogistic ModelsLongitudinal StudiesMaleMiddle AgedMultivariate AnalysisObesity, MorbidOdds RatioPatient ReadmissionPostoperative ComplicationsTreatment OutcomeYoung AdultConceptsBody mass indexSerious complicationsGastric bypassMass indexMedian body mass indexLaparoscopic gastric bypass procedureHigher adverse eventsLaparoscopic Roux-EnY Gastric BypassGastric bypass proceduresLogistic regression analysisDistribution of LOSLogistic regression modelsLRYGB patientsLaparoscopic RouxRoux-enMedian LOSAdverse eventsMedian agePatient demographicsReadmission ratesBypass proceduresInsurance statusComplicationsClinical database
2005
A national comparison of surgical versus percutaneous drainage of pancreatic pseudocysts: 1997–2001
Morton JM, Brown A, Galanko JA, Norton JA, Grimm IS, Behrns KE. A national comparison of surgical versus percutaneous drainage of pancreatic pseudocysts: 1997–2001. Journal Of Gastrointestinal Surgery 2005, 9: 15-21. PMID: 15623440, DOI: 10.1016/j.gassur.2004.10.005.Peer-Reviewed Original ResearchConceptsPercutaneous drainageLength of staySurgical approachPancreatic pseudocystICD-9 procedure codesDisease-specific severityNational Inpatient SamplePopulation-based studyCase series resultsEndoscopic retrograde cholangiopancreatographyRisk of mortalityLogistic regression modelsHospital dischargeInpatient mortalitySurgical drainageRetrograde cholangiopancreatographyInpatient SampleProtective effectChi2 analysisSurgical advantagesConfounding variablesMortalityPseudocystIllness differencesNational outcomes