GastrectomyGastric BypassObesity, MorbidBariatric SurgeryGastroplastyWeight LossLaparoscopyAnastomosis, Roux-en-YStomachGlucagon-Like Peptide 1Treatment OutcomePostoperative ComplicationsObesityGastrointestinal HormonesGhrelinGastroenterostomyStomach NeoplasmsPostgastrectomy SyndromesBody Mass IndexRats, Long-EvansFollow-Up StudiesBody WeightBlood GlucoseProspective StudiesJejunostomyJejunumBiliopancreatic DiversionGastric StumpSurgical StaplersPostoperative PeriodPeptide YYAnastomosis, SurgicalDumping SyndromeSteatorrheaDuodenumEsophagostomyGastric FistulaStomach DiseasesHyperoxaluriaGastrostomyAnastomotic LeakTime FactorsIncretinsSurgical StaplingJejunal DiseasesPostoperative CareRetrospective StudiesPostprandial PeriodReoperationOmentumDuodenostomyLymph Node ExcisionMalabsorption SyndromesDiabetes Mellitus, Type 2GastroscopyStomach UlcerAvitaminosisSuture TechniquesGastric Inhibitory PolypeptideFood PreferencesPulmonary Surgical ProceduresPylorusCoronary Artery Bypass, Off-PumpSerous MembranePulmonary VeinsAppetite RegulationSatiety ResponseLength of StayVagotomyHerniaEsophagusPreoperative PeriodConstriction, Pathologic