The Pathophysiology of Smoke Inhalation Injury

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Abstract
The consequences of near-lethal smoke inhalation in dogs were studied for a 72-hour period following injury. Progressive hypoxemia and decrease in compliance developed. Severe respiratory distress and frank pulmonary edema were not encountered. Respiratory insufficiecy was related more to alterations in ventilation perfusion ratios than to alveolar destruction. These data were related to clinical observations made by others. No deterioration of lung function was seen with crystalloid overload imposed upon smoke inhalation. The presence of bacterial infection in dogs surviving beyond 24 hours appears pathogenically significant.