Nonendoscopic Screening for Barrett's Esophagus in Veterans Without Chronic Reflux

"Esocheck (EC)/Esoguard (EG): EC is a encapsulated balloon device available commercially from Lucid Diagnostics (New York, NY). EG assay uses bisulfite sequencing for detection of aberrant methylation in the vimentin and cyclin A1 genomic loci, respectively.~EGD (upper endoscopy): EGD will be performed by gastroenterologists practicing in the Louis Stokes Cleveland VA Medical Center Endoscopy laboratories on the same day when EC/EG is performed."