Pseudoepidemic of Nontuberculous Mycobacteria due to a Contaminated Bronchoscope Cleaning Machine
| Autor: | J. G. H. Gubler, Max Salfinger, A. von Graevenitz |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
Pulmonary and Respiratory Medicine
Tuberculosis biology business.industry Outbreak Contamination Critical Care and Intensive Care Medicine biology.organism_classification medicine.disease Bronchoscopies Microbiology Equipment Contamination Medicine Nontuberculous mycobacteria Bronchoscopes Cardiology and Cardiovascular Medicine business Mycobacterium |
| Zdroj: | Chest. 101:1245-1249 |
| ISSN: | 0012-3692 |
| DOI: | 10.1378/chest.101.5.1245 |
| Popis: | We describe a pseudoepidemic due to nontuberculous mycobacteria contaminating the water tank of a machine used to clean and disinfect fiberoptic endoscopes. Forty-six bronchoscopies performed on 41 patients during a six-month period yielded 16 specimens positive for acid-fast bacilli (AFB). One specimen showed Mycobacterium avium complex from an AIDS patient and one, M tuberculosis from a patient with active cavitary tuberculosis. In four patients, only the smears showed AFB; subsequent cultures remained negative. Of the rest, seven contained M chelonae and three M gordonae, all in patients with no clinical signs of mycobacterial disease. Two of the three M gordonae isolates represented laboratory contamination from an antimicrobial solution in a culture medium. Four patients in the beginning of the pseudoepidemic were treated for presumed tuberculosis until negative culture results were available. Control of the "outbreak" was achieved by regular disinfection of the implicated water tank in the cleaning machine. Contamination of bronchoscopes with nontuberculous mycobacteria can lead to unnecessary diagnostic and therapeutic interventions. |
| Databáze: | OpenAIRE |
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