alexa ARDS: Who Needs to be Pronated?
ISSN: 2161-105X

Journal of Pulmonary & Respiratory Medicine
Open Access

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Review Article

ARDS: Who Needs to be Pronated?

Cossu AP1*, Cossu M2 and De Giudici L1

1UOC Anesthesia and Intensive Care and, Pain Therapy Service, AOU Cagliari Department of Medical Sciences “M. Aresu”, University of Cagliari, Italy

2University of Sassari, Italy

*Corresponding Author:
Cossu AP
UOC Anesthesia and Intensive Care and
Pain Therapy Service
AOU Cagliari Department of Medical Sciences “M. Aresu”
University of Cagliari, Italy
E-mail: [email protected]

Received date: July 22, 2013; Accepted date: August 26, 2013; Published date: August 28, 2013

Citation: Cossu AP, Cossu M, De Giudici L (2013) ARDS: Who Needs to be Pronated? J Pulm Respir Med 3:153. doi: 10.4172/2161-105X.1000153

Copyright: © 2013 Cossu AP, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Acute Distress Respiratory Syndrome (ARDS) is defined as a severe respiratory failure characterized by marked hypoxemia, bilateral infiltrates on the chest X-ray and the absence of signs of cardiogenic pulmonary edema. ARDS treatment remains primarily supportive and the use of mechanical ventilation with positive and expiratory pressure is required to maintain adequate gas exchange. Lung-protective mechanical ventilation strategy decreases mortality and increases ventilator free days. Prone positioning is considered a rescue therapy despite it improves gas exchange through resolution of dorsal atelectases with lung recruitment, better distribution of pulmonary perfusion and reduction of lung stress and strain. Nevertheless, several randomized controlled trials failed to demonstrate a reduction in mortality in pronated ARDS patients. Recent meta-analysis instead demonstrated a significant reduction of mortality in patients with most severe ARDS (PaO2/FiO2 ratio < 200) ventilated in prone position. These data were confirmed by the results of the PROSEVA study, published in June 2013 that reports a 16% reduction of mortality rate. The results of several meta-analysis and this large clinical trial suggest that prone positioning is a useful strategy that saves lives in more severely ill ARDS patients, when applied earlier and for at least 16 hours/day.

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