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Table 2 Antimicrobial effects of the 3-drug combination of aztreonam (16 mg/l), ceftazidime (16 mg/l) and amikacin (4 mg/l) against 23 strains of metallo-β-lactamase-producing P. aeruginosa

From: In vitro antimicrobial effects of aztreonam, colistin, and the 3-drug combination of aztreonam, ceftazidime and amikacin on metallo-β-lactamase-producing Pseudomonas aeruginosa

 

No. of strains (%) showing effectsa

Time of exposure (h)

Bacteriostatic effects

Bactericidal effects

2

18 (78.3)

2 (8.7)

4

16 (69.6)

5 (21.7)

6

19 (82.6)

7 (30.4)

24

16 (69.6)

9 (39.1)

  1. aBacteriostatic effects, any decrease in the viable count from the starting inoculum; bactericidal effects, ≥ 3 log cfu/ml decrease in the starting inoculum.