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Role of the "immersion technique" in diagnosing celiac disease with villous atrophy limited to the duodenal bulb



Role of the "immersion technique" in diagnosing celiac disease with villous atrophy limited to the duodenal bulb



Journal of Clinical Gastroenterology 41(6): 571-575



To investigate if the so-called immersion technique during upper endoscopy may be helpful to predict patterns of villous atrophy restricted to the duodenal bulb. Patients with celiac disease may have a patchy distribution of duodenal villous atrophy. In some cases, mucosa of duodenal bulb may be the only intestinal area involved. The immersion technique is a novel procedure that allows visualizing duodenal villi directly during endoscopy. With this prospective study, the immersion duodenoscopy was performed in 67 celiac subjects to investigate their duodenal villous pattern. Villi were evaluated both in the first and in the second duodenal segment and judged as present or absent (flat mucosa). Results were compared with histology as reference. Among celiac subjects, 49 were newly diagnosed and 18 previously diagnosed celiac patients. Four (8%) newly diagnosed and 7 (39%) previously diagnosed celiac subjects had an extension of the villous atrophy (flat mucosa) limited to the duodenal bulb. The sensitivity, specificity, and positive and negative predictive values of the immersion-based duodenal investigation in predicting areas of duodenal villous atrophy was always 100%. Immersion technique may be useful for directing duodenal biopsies in celiac subjects with a patchy distribution of villous atrophy. This procedure can avoid blinded sampling of the duodenal mucosa and enhance the diagnostic yield.

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Accession: 055614767

Download citation: RISBibTeXText

PMID: 17577113

DOI: 10.1097/01.mcg.0000225625.99415.c0


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