Study intervention
DISEASES
Each participant underwent UMGI capsule endoscopy followed by EGD within one week, and all endoscopy examinations were conducted before treatment of GI diseases. UMGI capsule was carried out by an endoscopist with an experience of more than 1000 cases of MCE procedures and a physician assisting in the control of detachable string. Standardized EGD examination with xylocaine spray for pharyngeal local anesthesia was performed by another well-trained endoscopist, who was blinded to the capsule findings. The final diagnosis was made by combining the results of both modalities. During these procedures, a designated researcher collected the relative data about all evaluation parameters.