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Query: UMLS:C0042961 (volvulus)
 4,305 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

An accepted experimental model for midgut volvulus was used to produce small bowel strangulation obstruction of 48 hours duration in Sprague-Dawley rats. A 93% perioperative mortality rate resulted after release of the volvulus. Treatment with three cytoprotective agents at the time of volvulus release resulted in the following mortality rates: superoxide dismutase, 89%; ibuprofen, 50%; prostaglandin E1 (PGE1, 11%. The predominant cause of death in all treatment groups was bowel infarction, with a smaller number succumbing to either sepsis or circulatory collapse. Concomitant administration of ephedrine or indomethacin to suppress prostaglandin E1's splanchnic vasodilatory activity did not cause any increase in mortality. A trial of aspirin, to simulate PGE's antiplatelet actions, showed no reduction in mortality when compared with detorsion alone. Prostaglandin E1 and, to a lesser extent, ibuprofen, appear to have cytoprotective effects during reperfusion of bowel compromised by volvulus, independent of their influence on the mesenteric vasculature and thrombogenesis.
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PMID:Cytoprotective agents in experimental small bowel volvulus. 355 71