Sleevegastrectomy(SG)isarestrictivebariatricsurgerytechniquethatwasfirstusedaspartofrestrictivehorizontalgastrectomyintheoriginalScopinarotypebiliopancreaticpersion.Itsgoodresultsasasingletechniquehaveledtoariseinitsuse,anditiscurrentlythesecondmostperformedtechniqueworldwide.SGachievesclearlybetterresultsthanotherrestrictivetechniquesandiscomparableinsomeaspectstotheRoux-en-Ygastricbypass,thecurrentgoldstandardinbariatricsurgery.Thesebenefitshavebeenassociatedwithdifferentpathophysiologicmechanismsunrelatedtoweightlosssuchasincreasedgastricemptyingandintestinaltransit,andactivationofhormonalmechanismssuchasincreasedGLP-1hormoneanddecreasedghrelin.TheaimofthisreviewwastohighlightthesalientaspectsofSGregardingitshistoricalevolution,pathophysiologicmechanisms,mainresults,clinicalapplicationsandperioperativecomplications.