title: [Tracheostomy in patients on mechanical ventilation: when is it indicated?].
authors.forename: Arthur
authors.initials: A
authors.lastname: Vianna
mesh_terms: D017558:Elective Surgical Procedures / Q000009:adverse effects / Q000379:methods; D006801:Humans; D007362:Intensive Care Units; D012121:Respiration, Artificial; D014139:Tracheostomy / Q000009:adverse effects / Q000379:methods*