Publications by authors named "John Levey"

Training future endoscopists is essential to meet rising demands for screening and surveillance colonoscopies. Studies have shown conflicting results regarding the influence of trainees on adenoma detection rates (ADR). It is unclear whether trainee participation during screening adversely affects ADR at subsequent surveillance and whether it alters surveillance recommendations.

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Introduction: The goal of Barrett esophagus surveillance is to identify high-grade dysplasia (HGD) for eradication. Surveillance programs currently rely on limited histologic sampling; however, the role of cytology in this setting is not well studied.

Materials And Methods: From December 1, 2011 to March 30, 2014, 45 patients underwent 4 circumferential brushings of the distal tubular esophagus followed by standard 4-quadrant biopsies.

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Introduction: Training future endoscopists is essential to meeting the increasing demands for colonoscopy. It remains unknown whether adenoma detection rates are adversely affected by trainee participation.

Methods: This is a single-center, prospective study.

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The association between pyoderma gangrenosum and inflammatory bowel disease is well established. Collagenous colitis is one of the microscopic colitides, which are thought to be on the same spectrum of disease as Crohn's disease and ulcerative colitis. Before this study there had been no reported cases of pyoderma gangrenosum in the setting of collagenous colitis.

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