Cluster of tuberculosis cases in North Carolina: possible association with atomizer reuse.
Am J Infect Control
; 29(1): 1-6, 2001 Feb.
Article
en En
| MEDLINE
| ID: mdl-11172311
ABSTRACT
BACKGROUND:
Three patients with identical strains of M tuberculosis (TB) underwent bronchoscopy on the same day at hospital A.METHODS:
We reviewed each patient's clinical history, hospital A's infection control practices for bronchoscopies, and specimen and isolate handling at each of 3 laboratories involved. We searched for possible community links between patients. Restriction fragment length polymorphism was performed on TB isolates.RESULTS:
The first patient who underwent bronchoscopy had biopsy-confirmed granulomatous pulmonary TB. A sputum sample collected from the third patient 6 weeks after the bronchoscopy produced an isolate with an identical restriction fragment length polymorphism pattern to isolates collected during the bronchoscopies. No evidence existed for community transmission or laboratory contamination; the only common link was the bronchoscopy. Different bronchoscopes were used for each patient. Hospital ventilation and wall-suctioning were functioning well. Respiratory technicians reported sometimes reusing the nozzles of atomizers on more than one patient. A possible mechanism for transmission was contamination from the first patient of the atomizer if it was used to apply lidocaine to the pharynx and nasal passages of other patients.CONCLUSIONS:
A contaminated atomizer may have caused TB transmission during bronchoscopy. Hospital A changed to single-use atomizers after this investigation.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Tuberculosis
/
Nebulizadores y Vaporizadores
/
Infección Hospitalaria
/
Contaminación de Equipos
/
Mycobacterium tuberculosis
Tipo de estudio:
Risk_factors_studies
Límite:
Aged
/
Aged80
/
Female
/
Humans
/
Male
/
Middle aged
País/Región como asunto:
America do norte
Idioma:
En
Revista:
Am J Infect Control
Año:
2001
Tipo del documento:
Article
País de afiliación:
Estados Unidos