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Table 3 Antibiotic resistance pattern of Gram-negative bacteria isolated from SSIsa

From: Two years study of prevalence and antibiotic resistance pattern of Gram-negative bacteria isolated from surgical site infections in the North of Iran

Class

Antibiotic

Enterobacteriaceae (%)

Pseudomonas spp. (%)

Acinetobacter spp. (%)

Aminoglycosides

Amikacin

25

66.7

100

Gentamicin

64.5

100

66.7

Carbapenems

Imipenem

46.2

100

100

Meropenem

65.5

100

85.7

Penicillins

Piperacillin

66.7

33.3

100

Cephems

Ceftazidime

60

50

100

Cefepime

80

0

100

Cefixime

80

NT

100

Ceftriaxone

56.3

NT

100

Cefoxitin

55.0

NT

100

Fluoroquinolones

Ciprofloxacin

70.6

50

100

Macrolides

Azithromycin

65

NT

NT

Sulfonamides

SXT

25

NT

60

Susceptible strainsb

3.3

0

0

MDR

67.2

50

46.2

  1. NT not tested, SXT trimethoprim/sulfamethoxazole, MDR multiple drug-resistant
  2. aThe results presented as percentage of resistant strains for each of the tested antibiotics
  3. bThe percentage of strains which were susceptible to all of the tested antibiotics