Sensitive rate of P aeruginosa was 70.5% with piperacillin-tazobactam, 66.8% with ceftazidime, 67.3% with imipenem, 67.0% with meropenem, 77.7% with amikacin, 62.0% with ciprofloxacin, 60.5% with levofloxacin, 100% with colistin.