Obscure gastrointestinal bleeding: “an unsuspected cause”
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Obscure gastrointestinal bleeding is found in 5-10% of cases of intestinal bleeding, recurring in 50% of cases. It is caused by various aetiologies which can make diagnosis a challenge, requiring various endoscopic procedures. Among the unusual causes are nematode intestinal parasites, prevalent in tropical areas and developing countries. The study presents the case of a patient with recurrent obscure gastrointestinal bleeding triggered by Ascaris lumbricoides, who required various hospitalisations, blood transfusions and a set of endoscopic procedures before the aetiological diagnosis and subsequent treatment. This demonstrates the necessity to know the true cost-effectiveness of preventive parasite control in all patients with gastrointestinal bleeding and negative results for the first endoscopic evaluation, taking the high prevalence of nematodes in our country into account.
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