Pathophysiology of pulmonary hypertension in acute lung injury.

Authors:
Address: Dept. of Critical Care, Royal Brompton Hospital, National Heart and Lung Institute, Imperial College London, London SW3 6NP United Kingdom. s.wort@imperial.ac.uk.
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Publication:

abstract

acute lung injury (ALI) and acute respiratory distress syndrome are characterized by protein rich alveolar edema, reduced lung compliance, and acute severe hypoxemia. A degree of pulmonary hypertension (PH) is also characteristic, higher levels of which are associated with increased morbidity and mortality. The increase in right ventricular (RV) afterload causes RV dysfunction and failure in some patients, with associated adverse effects on oxygen delivery. Although the introduction of lung protective ventilation strategies has probably reduced the severity of PH in ALI, a recent invasive hemodynamic analysis suggests that even in the modern era, its presence remains clinically important. We therefore sought to summarize current knowledge of the Pathophysiology of PH in ALI.

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