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Highly Accessed Commentary

Mechanical ventilation and intra-abdominal hypertension: 'Beyond Good and Evil'

Paolo Pelosi* and Maria Vargas

Author Affiliations

Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, L.go R. Benzi, 8 - 16132 Genoa, Italy

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Critical Care 2012, 16:187  doi:10.1186/cc11874


See related research by Regli et al., http://ccforum.com/content/16/5/R208/abstract

Published: 18 December 2012

Abstract

Intra-abdominal hypertension is frequent in surgical and medical critically ill patients. Intra-abdominal hypertension has a serious impact on the function of respiratory as well as peripheral organs. In the presence of alveolar capillary damage, which occurs in acute respiratory distress syndrome (ARDS), intra-abdominal hypertension promotes lung injury as well as edema, impedes the pulmonary lymphatic drainage, and increases intra-thoracic pressures, leading to atelectasis, airway closure, and deterioration of respiratory mechanics and gas exchange. The optimal setting of mechanical ventilation and its impact on respiratory function and hemodynamics in ARDS associated with intra-abdominal hypertension are far from being assessed. We suggest that the optimal ventilator management of patients with ARDS and intra-abdominal hypertension would include the following: (a) intra-abdominal, esophageal pressure, and hemodynamic monitoring; (b) ventilation setting with protective tidal volume, recruitment maneuver, and level of positive end-expiratory pressure set according to the 'best' compliance of the respiratory system or the lung; (c) deep sedation with or without neuromuscular paralysis in severe ARDS; and (d) open abdomen in selected patients with severe abdominal compartment syndrome.