Longitudinal increase in the detection rate of Mycobacterium chimaera in heater-cooler device-derived water samples

Schreiber, Peter W.; Zihlmann, Reto; Schärer, V; Hasse, Barbara; Imkamp, Frank; Schulthess, Bettina; Sander, Peter; Zingg, Walter

doi:10.1016/j.jhin.2022.11.003

Cited by 4 publications

(1 citation statement)

References 12 publications

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“…A previous study suggests the hypothesis of false negativizations after the initial contamination. Schreiber et al suggest that negative results might indicate a too-low concentration of M. chimaera in the water tanks during the supposed biofilm creation [ 21 ]. Our experience partially sustains this theory, because nowadays we have not been able to identify an alternative source of recontamination of the deep-disinfected HCUs.…”

Section: Discussionmentioning

confidence: 99%

Mycobacterium chimaera Infections in a Unit of Cardio Surgery: Study at a General Hospital in Padua, Italy

Cocchio,

Nicoletti,

Zanella

et al. 2023

Microorganisms

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Mycobacterium chimaera is a slow-growing non-tuberculous mycobacterium already known for being able to colonize cardio surgery heater–cooler units (HCUs). This study aims to describe the real magnitude of the phenomenon, providing a methodological protocol and the results of a longitudinal survey. In the period 1 January 2017–23 May 2022, over 1191 samples were collected on 35 HCUs of two different manufacturers. Among them, we identified 118 (10.3%) positive results for M. chimaera. We propose our 4-year biosurveillance experience as a practical model to minimize microbiological patients’ risk, suggesting the need for new procedures and interventions for a safer and more ecological cardio surgery.

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Section: Discussionmentioning

confidence: 99%