[Antimicrobial susceptibility of bacterial isolates from patients with cystic fibrosis].

We studied the antimicrobial susceptibility of bacteria isolated from sputum from patients with cystic fibrosis in our hospital during 2001 and 2002. The most frequently isolated microorganisms were Staphylococcus aureus (59.89%), Pseudomonas aeruginosa (49.45%), Stenotrophomonas maltophilia (4.9%) and Haemophilus influenzae (3.8%). The rate of methicillin-resistant S. aureus was 18%, and no strains with low susceptibility to glycopeptides were found. Carbapenems showed the highest activity against P. aeruginosa, although this did not reach 100%.