Abstract
The medical records of 220 consecutive patients with traumatic injuries admitted to the intensive care unit in the years 1974-1982 were scrutinised in an attempt to find radiographic signs and clinical determinants of early adult respiratory distress syndrome (ARDS). All patients included in this study were considered to run a risk of developing ARDS and had 'pure' major fractures in the sense that there were no accompanying severe brain, chest or abdominal injuries. There were no deaths in this series of patients. ARDS developed in 27 patients (12.3%), on an average on the second day of trauma. Chest radiographs of 21 of these patients showed features indicative of ARDS, whereas those of the other 6 patients were normal despite hypoxaemia. In most of the 27 patients the only radiographic manifestation of ARDS was interstitial oedema; only a minority presented with alveolar oedema in addition. In 6 patients no radiographic changes ever occurred. Ventilator treatment with positive end expiratory pressure may have prevented the pulmonary insufficiency from becoming radiographically manifest. The clinical determinants of post-traumatic ARDS were a high fracture index, based on the number and severity of fractures, implying severe trauma, and shock on admission. Fluid overload was not found to be the cause of ARDS.
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