• C Ritter, G Weiler, and G Adebahr.
• Z. Rechtsmed. 1985 Jan 1; 94 (1): 41-9.

AbstractThe respirator lung is characterized histologically in the first exudative phase by capillary congestion, intra-alveolary edema, hyaline membranes and in most cases by concomitant inflammatory alterations. In the following irreversible phase, fibrous organization processes dominate and show a variable tendency towards pulmonary fibrosis. In 27 cases with long-term artificial respiration from 4 days to 12 weeks, mainly the proliferative alterations were investigated. In 18 cases, the histopathological findings indicated fibrosis of the alveolar septa with disseminated distribution. In 9 cases, focal fibrosis with obliterations of alveoli prevailed. The extent of pathological results in the lungs does not correlate with the duration of artificial respiration. In cases of artificial respiration with pure oxygen, there is a special toxic component, which is illustrated by a young woman with polytraumatism who was administered artificial respiration for 5 weeks with pure oxygen. She died from respiratory insufficiency with severe pulmonary fibrosis. As different pathogenetic factors may cause irreversible pulmonary fibrosis, histomorphological classification is difficult later and, moreover, forensic problems result.

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