European journal of anaesthesiology
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No currently used tracheal tube offers full protection against aspiration of oropharyngeal secretions into the lower airways. ⋯ A 'pressure seal' incorporated in a double-cuffed tracheal tube prevented fluid passage into the lower airways. Clinically, this may translate into absence of inflow of bacteriologically contaminated secretions into the lungs and thus a lower incidence of ventilator-associated infection.
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Letter Observational Study
Better safe than sorry: An observational study of #ESALondon tweets.