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J Crit Care. 2012 Apr;27(2):192-8. doi: 10.1016/j.jcrc.2011.04.003. Epub 2011 Jun 23.

Effectiveness of extracorporeal membrane oxygenation when conventional ventilation fails: valuable option or vague remedy?

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Department of Intensive Care Medicine, Frankston Hospital, Frankston, Victoria, Australia.


The mortality and morbidity of patients with severe acute respiratory distress syndrome (ARDS) remains high despite the advances in intensive care practice. The low-tidal-volume ventilation strategy (ARDS net protocol) has been shown to be effective in improving survival. Unfortunately, however, some patients have such severe ARDS that they cannot be managed with the ARDS net strategy. In these patients, rescue therapies such as high-frequency ventilation, prone ventilation, nitric oxide, and extracorporeal membrane oxygenation (ECMO) are considered. The CESAR trial has shown that an ECMO-based protocol improved survival without severe disability as compared with conventional ventilation. The recent increased incidence of severe respiratory failure due to H1N1 influenza pandemic has led to an increased use of ECMO. Although several reports showed ECMO use to be encouraging, some scepticism remains. In this article, we reviewed the usefulness of ECMO in patients with severe ARDS in the light of current evidence.

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