September 28, 2009
Noninvasive Ventilation Should Be Used In Epidemics Contrary To Current Recommendations
Contrary to current policies recommending that non-invasive ventilation be avoided during an infectious outbreak, the authors of a commentary in CMAJ (Canadian Medical Association Journal) argue that it should be used in this setting.
Non-invasive ventilation uses a mask interface to ventilate the lungs of patients in respiratory failure, rather than a tube inserted into the trachea. Because suitable candidates for noninvasive ventilation avoid complications associated with endotracheal intubation, they have better outcomes compared to similar patients who are ventilated invasively.
"During the SARS epidemic, the suggestion that non-invasive ventilation may increase the risk of disease transmission was considered sufficient justification to avoid its use. However in the 6 years since then, no convincing evidence has substantiated that theory. On the other hand, non-invasive ventilation has been proven to save the lives of some patients in acute respiratory failure", write John McCracken, a respiratory therapist at Peterborough Regional Health Centre in Peterborough Ontario Canada and Dr. Karen Burns of St. Michael's Hospital in Toronto.
"It is in no one's best interest for patients to undergo endotracheal intubation in cases where it could be avoided." "Given the available evidence, the precautionary principle would direct us toward the use of noninvasive ventilation during an epidemic," write the authors.
On the Net: