Patient Acceptance and Preference Among Screening Modalities for Detection of Barrett's Esophagus

In a seated position, subjects will swallow the Cytosponge capsule with 150-250 mL of water. Seven minutes and 30 seconds to ten minutes after ingestion, the sponge is then withdrawn by gentle traction on the suture. After retrieval, the string is cut and the retrieved foam sphere containing the cytological specimen is immersed in fixative and stored refrigerated (1° to 12°C \[34° to 54°F\]).

In an upright position, the scope will be inserted via the nares to examine the posterior pharynx, esophagus and proximal stomach with the transnasal endoscopy approach. The scope will be withdrawn from the nares following completion of the exam.

Laying on the subjects' left side, the flexible endoscope is inserted through the mouth to allow visualization of the esophageal mucosa from the upper esophageal sphincter all the way to the esophagogastric junction (EGJ).