Editorial
Progress in ARDS research: a protection racket?
| The first 150 words of the full text of this article appear below. |
The acute respiratory distress syndrome in adults (ARDS) may complicate a wide variety of serious medical and surgical conditions, not all of which involve the lung directly.1 The pathogenesis remains unclear, but involves neutrophil recruitment to the alveoli and inflammatory pathway activation leading to increased permeability of the alveolar-capillary membrane and disordered vascular control, manifest clinically as pulmonary oedema formation and refractory hypoxaemia. Compliance is reduced and work of breathing is increased to the extent that most patients require endotracheal intubation and mechanical ventilatory support.2 Despite the recent publication of within-centre studies showing a fall in mortality,3 4 some 40-60% of patients with ARDS fail to survive with most of the deaths being attributable to multiple organ system failure.
It has been appreciated for some years that mechanical
ventilation can itself exacerbate pre-existing alveolar injury. This may develop directly as a result of barotrauma and so called
"volutrauma", or indirectly through
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Epidemiologic studies
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Mechanical ventilation
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Pulmonary oedema
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