High-frequency oscillatory ventilation for early acute respiratory distress syndrome in adults

Current Opinion in Critical Care
Alberto Goffi, Niall D Ferguson

Abstract

High-frequency oscillatory ventilation (HFOV) has been considered a potentially ideal mode of lung-protective ventilation. A recent meta-analysis suggested improved oxygenation and reduced mortality in adults and children with acute respiratory distress syndrome (ARDS), but the use of outdated control strategies and small numbers of patients in many of the studies rendered these findings hypothesis-generating only. During 2013, two large randomized controlled trials comparing HFOV with a conventional lung-protective ventilation were published - the Oscillation for Acute Respiratory Distress Syndrome Treated Early (OSCILLATE) and the Oscillation in ARDS (OSCAR) trials. These trials suggested no benefit or even harm with HFOV in adults with early moderate-to-severe ARDS. In this article, the major characteristics of these two studies and the possible reasons for failure to achieve the expected theoretical benefits are reviewed. Moreover, future directions with potential new technical advances and the use of new bedside monitoring techniques are addressed. The OSCILLATE and OSCAR trials showed that the early application of HFOV in moderate-to-severe adult ARDS does not reduce mortality compared with conventional ventilation strate...Continue Reading

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Jun 3, 2014·Critical Care : the Official Journal of the Critical Care Forum·Chun-Ta HuangChong-Jen Yu
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