Add'l serial numbers: (b)(4).The user facility does not consider this to be a device related adverse event, reporting it as a product problem.The facility conducted an investigation and found that the hospital water system was infected with legionella, and the water in the cooler-heater devices contained legionella because it came from the contaminated hospital water supply.The investigation found no link between the cooler-heater devices and the pt infections.Cardioquip service personnel performed onsite eval of all cooler-heater devices (the three listed on this form, and nine others) and found no evidence of malfunction or misuse.Hospital personnel performed the cleaning and disinfection procedure, per the device ifu, and removed the contaminants from the three devices that had been contaminated with legionella from the hospital water supply.Cardioquip service personnel verified that the hospital personnel performed the cleaning and disinfection procedures adequately.
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Two pts who had surgery, later tested positive for legionnaires' pneumonia.During hospital's investigation into potential source, 3 operating room cooler-heater units tested positive for legionella bacteria.There has been no conclusive evidence at this time to link the pneumonia to the equipment.Ref (b)(4).
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