Table 5.
Microbial isolation from positive endotracheal tube tip cultures
| Organism | PVC tube (n = 14) | SC tube (n = 13) | NbMC tube (n = 22) | All tubes (n = 49) |
|---|---|---|---|---|
| Gram-positive bacteria | ||||
| Staphylococcus aureus | 2 (11) | 2 (13) | 1 (3.7) | 5 (8.2) |
| Enterococcus faecalis | 3 (16) | 2 (7.4) | 5 (8.2) | |
| Enterococcus faecium | 1 (5.6) | 1 (6.2) | 2 (3.3) | |
| Staphylococcus epidermidis | 1 (6.3) | 1 (1.6) | ||
| Gram-negative bacteria | ||||
| Pseudomonas aeruginosa | 1 (5.6) | 3 (11) | 4 (6.6) | |
| Stenotrophomonas maltophilia | 4 (15) | 4 (6.6) | ||
| Klebsiella species | 1 (6.2) | 1 (3.7) | 2 (3.3) | |
| Chryseobacterium indologenes | 2 (7.4) | 2 (3.3) | ||
| Escherichia coli | 1 (6.2) | 1 (1.6) | ||
| Serratia marcescens | 1 (5.6) | 1 (1.6) | ||
| Acinetobacter species | 1 (6.2) | 1 (1.6) | ||
| Citrobacter freundii | 1 (3.7) | 1 (1.6) | ||
| Yeast | ||||
| Candida spp. | 9 (50) | 9 (56) | 13 (48) | 31 (51) |
| Candida albicans | 8 (44) | 7 (44) | 9 (33) | 24 (39) |
| Other yeasts | 1 (5.6) | 1 (1.6) | ||
| Total number of microorganisms cultured from ETTs | 18 (100) | 16 (100) | 27 (100) | 61 (100) |
Data are presented as number (percentage). Approximately 20% of all endotracheal tube tips were polymicrobial. Abbreviations: PVC polyvinyl-chloride, SC silicone-coated, NbMC noble-metal-coated