The anesthesia system was investigated at the hospital by our field service engineer.The investigation did not reveal any issues that can be traced to the reported event.The device logs were saved and sent for evaluation.A tracheostomy was performed due to a high airway obstruction, swelling, bleeding in the airway above the vocal cords or because the patient had been treated on a ventilator for a long time.Regardless of whether it was a primary emergency installation of a tracheostomy (i.E without endotracheal tube) or a change from endotracheal tube to tracheostomy, these interventions are associated with big leakages around the airway.This can be confirmed in the logs.Our conclusion is that there was no device malfunction and ventilation issues found in the log were most likely caused by leakage due to the type of procedure that was performed which created leakages.
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