Abstract:Objective To investigate the clinical applicability of magnetically controlled capsule endoscopy for recurrent abdominal pain (RAP) in children.Methods Children with RAP who underwent magnetically controlled capsule endoscopy from January 2021 to June 2021 were retrospectively enrolled. The detection of endoscopic lesions and the running time of capsules in various parts of digestive tract were analyzed.Results Among the 125 patients, 35 underwent total small intestine examination, one of whom was incomplete because of swallow failure, and 90 underwent esophageal and stomach examination under magnetic control. The endoscopy capsule transited the esophagus, stomach, and small intestine in an median time of 8.5 (5.3, 12.5) s, 49.0 (17.7, 94.0) min, and 252 (192.5, 340.0) min, respectively. The completion rate for the visualization of the entire small bowel was 97.1% (34/35). The capsules were naturally excreted by all patients. The detection rates for gastroesophageal lesions and small intestinal by magnetically controlled capsule endoscopy were 71.8% (89/124) and 68.6% (24/35), respectively. The diagnostic rate for magnetically controlled capsule endoscopy for RAP was 73.4% (91/124).Conclusion Magnetic capsule endoscopy has a high detection rate of gastrointestinal lesions in children with recurrent abdominal pain, and it is safe and painless, which has certain clinical application value.