Table 3.
High-concern organisms isolated during the third phase of microbiological surveillance.
| Type of Endoscope (Number of Samples) |
Microorganism | Swab from Biopsy Channel | Swab from Water Channel | Swab from Air Channel | Swab from Elevator Channel | Liquid from Internal Channels |
|---|---|---|---|---|---|---|
| High-Concern Organisms | ||||||
|
Duodenoscope
(72) |
K. pneumoniae | 0 | 0 | 0 | 0 | 3/72 (4.2%) |
|
S. epidermidis Staphylococcus spp. |
0 | 0 | 0 | 0 | 2/72 (2.8%) | |
| E. cloacae | 0 | 0 | 0 | 0 | 1/72 (1.3%) | |
| E. coli | 0 | 0 | 0 | 0 | 2/72 (1.3%) | |
|
P. aeruginosa
P. stutzeri P. putida |
0 | 0 | 0 | 0 | 5/72 (4.2%) | |
|
A. baumannii
A. lwoffii |
0 | 0 | 0 | 0 | 2/72 (2.8%) | |
| Total viable Count (quantity range and % NC samples) | - | - | - | - | 1–300 CFU 4/72 (5.5%) |
|
|
Gastroscope
(32) |
K. pneumoniae | 0 | 0 | 0 | 0 | 2/32 (6.2%) (NDM-K. pneumoniae) |
| E. cloacae | 0 | 0 | 0 | 0 | 1/32 (3.1%) | |
|
P.
aeruginosa
P. stutzeri P. mosselii P. fluorescens |
0 | 0 | 0 | 0 | 3/32 (9.4%) | |
| S. maltophilia | 0 | 0 | 0 | 0 | 1/32 (3.1%) | |
| A. lwoffii | 0 | 0 | 0 | 0 | 1/32 (3.1%) | |
| Total viable count (quantity range and % NC samples) | - | - | - | - | 1–83 CFU 4/32 (12.5%) |
|
|
Colonoscope
(24) |
E. coli | 0 | 0 | 0 | 0 | 3/24 (12.5%) |
| Staphylococcus spp. | 0 | 0 | 0 | 0 | 2/24 (8.3%) | |
| P. aeruginosa | 0 | 0 | 0 | 0 | 2/24 (8.3%) | |
| Total viable count (quantity range and % NC samples) | - | - | - | - | 1–>300 CFU 4/24 (16.7%) |
|
NC: non-compliant (TVC > 20 CFU/channel or >100 CFU/channels, according to ESGE/ESGENA or CDC guidelines, respectively).