Characteristics of Pseudomonas aeruginosa infection in intensive care unit before (2007-2010) and after (2011-2014) the beginning of an antimicrobial stewardship program.

isolates was restored after the reduction of endotracheal intubation, fluoroquinolones, carbapenems, and third-generation cephalosporins and the increased use of molecules with a low ecological footprint, as piperacillin and trimethoprim-sulfamethoxazole.