Study outcomes
ADVERSE EVENTS, DETACHMENT
The primary study outcome was technical success of UMGI capsule endoscopy, defined as successful repeated observation of esophagus, stomach, and duodenum and detachment of capsule from string after duodenal examination. Secondary outcomes included the visualization of UMGI tract, examination time, diagnostic yield, discomfort and adverse events associated with the procedure.Visualization of esophagus was indicated by the detection of Z-line defined as at least one image of Z-line was obtained and circumferential viewing of Z-line (one quadrant; at least two quadrants; at least three quadrants; and all four quadrants) [