GastroplastyObesity, MorbidLaparoscopyGastric BypassAnastomosis, Roux-en-YJejunoileal BypassObesityBariatric SurgeryCholecystectomy, LaparoscopicBiliopancreatic DiversionWeight LossSurgical StaplersStomachPostoperative ComplicationsPirinitramideHernia, HiatalFundoplicationBody Mass IndexAvitaminosisLaparoscopesGastrectomyTreatment OutcomeFollow-Up StudiesJejunumEsophageal StenosisBody WeightReoperationEsophagusPostoperative PeriodMethodsLength of StayGastroesophageal RefluxDigestive System Surgical ProceduresPneumoperitoneum, ArtificialRetrospective StudiesElephantiasisAppendectomyIleumRoboticsVitamin B DeficiencyProspective StudiesSurgical MeshSurgical Procedures, Minimally InvasivePrader-Willi SyndromeGynecologic Surgical ProceduresObesity, AbdominalTime FactorsNephrectomyPostoperative CareIntraoperative ComplicationsColectomyHernia, InguinalLeptinPediatric ObesityMalabsorption SyndromesOperative TimeSuture TechniquesHysterectomyLaparotomyCholecystectomyVertical DimensionRisk FactorsGallbladder DiseasesComorbidityHand-Assisted LaparoscopyCholelithiasisAppendicitisFatty LiverInsulin ResistanceLearning CurveDiabetes Mellitus, Type 2Hernia, VentralReceptors, LeptinSurgical InstrumentsGallstonesAdipose TissueHerniorrhaphyBlood Loss, Surgical