Table 3

Bacteria associated with ventilator-associated tracheobronchitis episodes


Intention to treat
Modified intention to treat

Antibiotic treatment
n = 22
No antibiotic treatment
n = 36
Antibiotic treatment
n = 18
No antibiotic treatment
n = 26

Microorganisms, number
27
39
22
29
Polymicrobial VAT
5 (22)
3 (8)
4 (22)
3 (11)
MDR bacteria
10 (45)
17 (47)
9 (50)
14 (53)
Gram-negative
20 (90)
27 (75)
16 (88)
20 (76)
     Pseudomonas aeruginosa
8 (36)
11 (30)
7 (31)
9 (34)
     Enterobacter species
2 (9)
3 (8)
2 (11)
3 (11)
     Escherichia coli
3 (13)
3 (8)
1 (5)
2 (7)
     Proteus mirabilis
3 (13)
1 (2)
2 (11)
1 (3)
     Citrobacter freundii
1 (4)
2 (5)
1 (5)
1 (3)
     Acinetobacter baumannii
0 (0)
2 (5)
0 (0)
2 (7)
     Morganella morgani
1 (4)
2 (5)
1 (5)
1 (3)
     Hemophilus influenzae
0 (0)
1 (2)
0 (0)
1 (3)
     Stenotrophomonas maltophilia
1 (4)
1 (2)
1 (5)
0 (0)
     Klebsiella oxytoca
1 (4)
1 (2)
1 (5)
0 (0)
Gram-positive
7 (31)
12 (33)
6 (33)
9 (34)
     Methicillin-resistant Staphylococcus aureus
3 (13)
6 (16)
3 (16)
5 (19)
     Methicillin-sensitive S. aureus
3 (13)
4 (11)
2 (11)
4 (15)
     Streptococcus pneumoniae
1 (4)
2 (5)
1 (5)
0 (0)

P > 0.2 for all comparisons (antibiotic versus no antibiotic treatment). Results are presented as number (percentage) unless otherwise indicated. MDR, multidrug-resistant; VAT, ventilator-associated tracheobronchitis.

Nseir et al. Critical Care 2008 12:R62   doi:10.1186/cc6890