Recommended surveillance of patients with newly diagnosed BE is based on the presence and degree of dysplasia on biopsy. In those with no dysplasia, surveillance with upper endoscopy is recommended in 3 to 5 years. In patients with low-grade dysplasia, surveillance is more frequent, usually 6 to 12 months following confirmation by an expert pathologist. High-grade dysplasia requires either more aggressive surveillance or treatment to remove BE (such as with endoscopic ablation or esophagectomy)