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Table 3 Trends of antimicrobial resistance of Gram-positive and Gram-negative bacteria in General Hospital of Tripolis, Greece (2001–2005).

From: Secular trends of blood isolates in patients from a rural area population hospitalized in a tertiary center in a small city in Greece

 

Number of resistant isolates/total isolates (proportion) within the year

Microorganisms

2001

2002

2003

2004

2005

Total

Gram-positive

      

Staphylococcus epidermidis

      

Oxacillin*

0/15 (0)

6/15 (40)

7/26 (26.9)

  

13/56 (23.2)

Gentamicin

2/15 (13.3)

1/15 (6.7)

1/26 (3.8)

0/26 (0)

9/52 (17.3)

13/134 (9.7)

Vancomycin

0/15 (0)

0/15 (0)

0/26(0)

0/26 (0)

0/52 (0)

0/134 (0)

Penicillin

   

13/26 (50)

40/52 (76.9)

53/78 (67.9)

Staphylococcus aureus

      

Oxacillin*

0/6 (0)

5/9 (55.6)

0/14 (0)

  

5/29 (17.2)

Gentamicin

1/6 (16.7)

1/9 (11.1)

0/14 (0)

3/21 (14.3)

1/18 (5.6)

6/68 (8.8)

Vancomycin

0/6 (0)

0/9 (0)

0/14 (0)

0/21 (0)

0/18 (0)

0/68 (0)

Penicillin

   

14/21 (66.7)

13/18 (72.2)

27/39 (69)

Streptococcus viridans

      

Penicillin

  

0/1 (0)

  

0/1 (0)

Vancomycin

  

0/1 (0)

  

0/1 (0)

Gram-negative

      

Escherichia coli

      

Trimethoprim-sulfamethoxazole

8/20 (40)

6/17 (35.2)

6/22 (27.2)

6/22 (27.2)

6/27 (22.2)

32/108 (29.6)

Amikacin

8/20 (40)

4/17 (23.5)

1/22 (4.5)

0/22 (0)

6/27 (22.2)

19/108 (17.6)

Gentamicin

2/20 (10)

4/17 (23.5)

0/22 (0)

0/22 (0)

2/27 (7.4)

8/108 (7.4)

Ampicillin

3/20 (15)

0/17 (0)

6/22 (27.2)

8/22 (36.3)

10/27 (37.0)

27/108 (25.0)

Cefuroxime

0/20 (0)

0/17 (0)

2/22 (9.1)

1/22 (4.5)

6/27 (22.2)

9/108 (8.3)

Pseudomonas aeruginosa

      

Amikacin

0/2 (0)

0/3 (0)

0/4 (0)

0/11 (0)

3/9 (33.3)

3/29 (10.3)

Ceftazidime

0/2 (0)

0/3 (0)

0/4 (0)

2/11 (18.2)

2/9 (22.2)

4/29 (13.8)

Ciprofloxacin

1/2 (50)

0/3 (0)

0/4 (0)

4/11 (36.4)

3/9 (33.3)

8/29 (27.6)

Imipenem

0/2 (0)

0/3 (0)

0/4 (0)

0/11 (0)

1/9 (11.1)

1/29 (3.4)

Acinetobacter baumanii

      

Amikacin

  

0/3 (0)

1/2 (50)

0/1 (0)

1/6 (16.7)

Gentamicin

  

0/3 (0)

0/2 (0)

0/1 (0)

0/6 (0)

Ceftazidime

  

3/3 (100)

1/2 (50)

0/1 (0)

4/6 (66.7)

Ciprofloxacin

  

3/3 (100)

2/2 (100)

0/1 (0)

5/6 (83.3)

Imipenem

  

0/3 (0)

0/2 (0)

1/1 (100)

0/6 (0)

Klebsiella pneumoniae

      

Ceftazidime

 

0/1 (0)

  

0/2 (0)

0/3 (0)

Ciprofloxacin

 

0/1 (0)

  

1/2 (50)

1/3 (33.3)

Meropenem

 

0/1 (0)

  

0/2 (0)

0/3 (0)

Cefepime

 

0/1 (0)

  

0/2 (0)

0/3 (0)

Cefoxitin

 

1/1 (100)

  

0/2 (0)

1/3 (33.3)

Tobramycin

 

0/1 (0)

  

0/2 (0)

0/3 (0)

  1. * Oxacillin discs were not available for antimicrobial testing during the period 16/05/2003 – 15/05/2005