Abstract Introduction: The first presentation of ulcerative colitis may be an acute flare in about 15% of patients, requiring hospital admission. In acute severe steroid-refractory ulcerative colitis, cytomegalovirus (CMV) should be sought because it is a frequent cause of refractory disease. Herpes simplex colitis constitutes a rarer event in ulcerative colitis patients and it is usually associated with immuno...
Abstract: Background: Video capsule endoscopy (VCE) revolutionized the diagnosis and management of obscure gastrointestinal bleeding, though the rate of detection of small bowel lesions by the physician is still disappointing. Our group developed a novel algorithm (CMEMS-Uminho) to automatically detect angioectasias which display greater accuracy in VCE static frames than other methods previously published. We ...
Background: The emergence of endoscopic submucosal dissection (ESD) made possible en bloc resection of neoplastic gastric lesions, regardless of lesion size, with reduced rates of complications and recurrence. This technique has become the preferred method for curative resection, instead of conventional endoscopic mucosal resection and surgery, when distant metastases have negligible risk. In Western countries ...