期刊
AMERICAN JOURNAL OF INFECTION CONTROL
卷 37, 期 3, 页码 189-194出版社
MOSBY-ELSEVIER
DOI: 10.1016/j.ajic.2008.06.009
关键词
-
资金
- Hospital Program of Clinical Research 2004 [PHRC 2004]
- Delegation of the clinical research of Bourgogne, Dijon, France
Background: Invasive filamentous fungi infections resulting from inhalation of mold conidia pose a major threat in immunocompromised patients. The diagnosis is based on direct smears, cultural symptoms. and culturing fungi. Airborne conidia present in the laboratory environment may cause contamination of cultures, resulting in false-positive diagnosis. Baseline values of fungal contamination in a clinical mycology laboratory have not been determined to date. Methods: A 1-year prospective survey of air and surface contamination was conducted in a clinical mycology laboratory during a period when large construction projects were being conducted in the hospital. Air was sampled with a portable air system impactor, and surfaces were sampled with contact Sabouraud agar plates. The collected data allowed the elaboration of Shewhart graphic charts. Results: Mean fungal loads ranged from 2.27 to 4.36 colony forming units (cfu)m(3) in air and from 0.61 to 1.69 cfu/plate on surfaces. Conclusions: Strict control procedures may limit the level of fungal contamination in a clinical mycology laboratory even in the context of large construction projects at the hospital site. Our data and the resulting Shewhart graphic charts provide baseline values to use when monitoring for inappropriate variations of the fungal contamination in a mycology laboratory as part of a quality assurance program. This is critical to the appropriate management of the fungal risk in hematology, cancer and transplantation patients. Copyright (c) 2009 by the Association for Professionals in Infection Control and Epidemiology. Inc.
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