The intensivist was in the patient room when she heard the vapotherm make a strange sound while on the patient.There was no audible alarm and the device had power to it.The patient started to desaturate into the 50's and it was suspected at that time that there was a change in pressure from the device to the patient.The patient was removed from vapotherm and placed on bipap and oxygen saturations improved.This reporting therapist pulled the vapotherm device and sequestered it.Letter from daughter says the hissing noise of the o2 stopped and he began to suffocate.Per provider, circuit did not appear to be kinked and there was nothing abnormal at the time the device malfunctioned.Circuit was not saved as it was a covid patient.Pm (preventative maintenance) was last performed (b)(6) 2021, at which time no issues were identified and the only things replaced were the annual pm kit items (o2 sensor, air and o2 filters).
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