What happens to colonized resistant bacteria (eg: esbl kleb) when trachee decannulated? technical & references/links appreciated.

Varies with patients: If a person had a trach and got it removed, and then healed up and resumed normal, natural clearing of mucus and microorganisms, that person should be able to be free of bacteria in the trachea and lungs (regardless of whether the bacteria is antibiotic resistant or not, because the human body doesn't know about antibiotic resistance). If the person remains abnormal, then some bacteria may remain.

Depends: There is no research on the subject that shows up on pubmed; it is thought that, since tracheostomy tubes are a risk factor for esbl bugs, removing the trach removes part of the risk at least. For patients with cf, bronchiectasis, or other chronic airway disease that predispose to chronic airway infection, the risk does not go back to zero. There are no studies to say what the particular risks..