The usefulness of combined high-frequency percussive ventilation during acute respiratory failure after smoke inhalation

Abstract 

Inhalation injury and bacterial pneumonia represent some of the most important causes of mortality in burn patients. We describe 11 severely burned patients with acute respiratory failure due to inhalation injury who did not respond adequately to conventional respiratory support. High-frequency percussive ventilation (HFPV) is a recent ventilatory mode, which combines the advantages of conventional ventilation with some of those of high-frequency ventilation. Seven patients developed pulmonary infection during the acute phase; one patient died of multiple organ failure on day 25. All the other patients survived; two developed bronchiolitis obliterans symptoms before discharge.

No side-effects were noted and haemodynamic tolerance of HFPV was excellent.

Our findings suggest that HFPV can improve pulmonary function and gas exchange in these catastrophic pulmonary failures following inhalation injury.

Keywords: Acute respiratory failure, Smoke inhalation, Burns, Hypoxaemia, High-frequency percussive ventilation, Combined high-frequency ventilation

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