Disinfecting Heater-Cooler Devices to Prevent Mycobacterial Contamination

As the first case was identified, we analyzed water and aerosols from our two Stockert 3T HCD units. M. chimaera was isolated from both samples. Based on the recommendations of the Swiss Chimaera Task Force, we replaced the two units and built a dedicated space outside the operating room to store and control the HCD remotely [18 ]. We also established a strict weekly chlorine-based disinfection protocol of the HCD water circuits, according to the manufacturer’s instructions, as well as a monthly analysis for the atypical mycobacteria of HCD water and air samples.

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Schaeffer T., Kuster S., Koechlin L., Khanna N., Eckstein F.S, & Reuthebuch O. (2023). Long-Term Follow-Up after Mycobacterium Chimaera Infection Following Cardiac Surgery: Single-Center Experience. Journal of Clinical Medicine, 12(3), 948.

Publication 2023

Aerosols Atypical mycobacteria Chimaera Chlorine Disinfection

Corresponding Organization : University Hospital of Basel

Other organizations : University of Basel

Top 5 similar protocols

Variable analysis

independent variables

Replacing the two Stockert 3T HCD units
Building a dedicated space outside the operating room to store and control the HCD remotely
Establishing a strict weekly chlorine-based disinfection protocol of the HCD water circuits, according to the manufacturer's instructions

dependent variables

Isolation of M. chimaera from water and aerosol samples

control variables

Monthly analysis for the atypical mycobacteria of HCD water and air samples

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