Background. To evaluate microbial contamination in hospitals environments, several methods are available, each one having its limitations. Therefore the choice of system to use is open. Aim. To compare the ability of a dusting cloth pad (DC pad), with two other methods (Rodac contact plate and air sampling) to detect a contamination due to filamentous fungi (FF) in operating rooms (ORs). Methods. 110 sampling campaigns were carried out in ORs of hospitals of three Italian cities: Bari, Rome and Sassari. Surface samples were collected from the upper surface of scialytic lamps: half with two Rodac contact plates and other half was all rubbed with one DC pad and the dust captured was inoculated on a Petri plate. Next to the surgical table 540 liters of air were sampled, using SAS sampler. Air and Rodac plates sampling follow standard methods for detecting fungi. Finding. Overall, 96% (90/94) of the DC pad samples were positive compared with 51% (48/94) of Rodac plates (p<0.0001) and 35% (33/94) of air samples (p<0.0001). The difference persists stratifying by venue, with the exception of Sassari, due to a high percentage of positive samples with all methods. Conclusion. The DC pad improves the ability to detect an environmental contamination of FF.
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Titolo: | Evaluation of fungal contamination in operating rooms using a dusting cloth pad: comparison among different sampling methods |
Autori: | |
Data di pubblicazione: | 2013 |
Rivista: | |
Abstract: | Background. To evaluate microbial contamination in hospitals environments, several methods are available, each one having its limitations. Therefore the choice of system to use is open. Aim. To compare the ability of a dusting cloth pad (DC pad), with two other methods (Rodac contact plate and air sampling) to detect a contamination due to filamentous fungi (FF) in operating rooms (ORs). Methods. 110 sampling campaigns were carried out in ORs of hospitals of three Italian cities: Bari, Rome and Sassari. Surface samples were collected from the upper surface of scialytic lamps: half with two Rodac contact plates and other half was all rubbed with one DC pad and the dust captured was inoculated on a Petri plate. Next to the surgical table 540 liters of air were sampled, using SAS sampler. Air and Rodac plates sampling follow standard methods for detecting fungi. Finding. Overall, 96% (90/94) of the DC pad samples were positive compared with 51% (48/94) of Rodac plates (p<0.0001) and 35% (33/94) of air samples (p<0.0001). The difference persists stratifying by venue, with the exception of Sassari, due to a high percentage of positive samples with all methods. Conclusion. The DC pad improves the ability to detect an environmental contamination of FF. |
Handle: | http://hdl.handle.net/11586/61651 |
Appare nelle tipologie: | 1.1 Articolo in rivista |