Abstract
Aspirin almost invariably causes acute mucosal injury to the stomach or duodenum as evidenced by erosions seen endoscopically, extensive surface cell disruption on histology, reduced mucosal potential difference and increased gastric bleeding. This injury is usually minor and transient, and not associated with symptoms. However, in the elderly recent aspirin intake may be associated with bleeding peptic ulcer, and along with other NSAIDs, may be causal in a third of cases. Regular chronic aspirin intake may also be associated with gastric ulceration. Such ulceration, however, although seemingly capable of healing despite continued aspirin or other NSAID use, may take longer to do so. Although aspirin and other NSAIDs have a strong connection with gastroduodenal problems the risk in an individual needs to be balanced by the likelihood of such events. Given their widespread use, the serious side effects of these drugs occur in only a small proportion of users. This, however, does not mitigate against careful prescription.
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