There is a frequent association between aortic valve stenosis and gastrointestinal bleeding, also known as Heyde’s syndrome. The pathophysiologic basis for this syndrome seems to be an acquired von Willebrand factor deficiency, leading to bleeding of angiodysplastic arteriovenous malformations. Treatment options include the location and cauterization of bleeding points, which is associated to h...

Introdução: A hemorragia digestiva é definida pelo sangramento nas áreas do trato gastrointestinal, que se apresenta clinicamente com a perda visível de sangue e manifesta por hematêmese, hematoquezia melena. Os sinais podem ser variáveis dependem da origem hemorragia. Esse pode ocorrer acima ou abaixo ângulo Treitz sendo classificado como Hemorragia Gastrointestinal Alta Baixa, algum local des...

Lower gastrointestinal bleeding is defined as a bleeding originated from a source distal to the Treitz ligament and the colonoscopy is well established as the diagnostic procedure of choice. Objective: To evaluate the results of colonoscopies performed to diagnose the cause of acute lower gastrointestinal bleeding in a general hospital at Mato Grosso do Sul. Material and methods: Colonoscopy pr...