A trial of the use of patency capsules in combination with overnight capsule endoscopy.

Background: The PillCam® patency capsule (PPC) was developed to minimize the risk of capsule retention during capsule endoscopy (CE). Typically, the use of patency capsules prior to CE requires patients to be monitored over a period of time. To reduce the need for frequent outpatient visits during PPC examination and CE, we developed the overnight CE (ON-CE) procedure.