简介:Theeffectivenessofmechanicalventilation,bothinvasive(byendotrachealintubation)andnon-invasiive(bynegativepressureventilation)wasestablishedduringtheepidemicsofpolioinEuropeandNorthAmericainthelain1950sandearly1960s.Theindicationsforventilationhaveincreasedsincethattime,andinvasiveventilationserviceshavebecomeconcentratedinhighly-staffedcriticalcareunitsand.insomepartsofEurope,respiratorycareunits.