A Novel Strategy for Endoscopic Dual-instrument Retrieval of Upper GI Foreign Body

We describe a single-center, retrospective case series (n = 10) for the utilization of dual instruments to extract foreign body at physiological narrowing. Foreign bodies that failed to remove with a single instrument or located in physiological narrowing into the duodenal bulb or descending duodenum were considered appropriate for this technique. Informed consent was obtained from all patients before the procedure.

NCT Number	NCT07649382
Lead Sponsor	Shanghai Zhongshan Hospital
Conditions	Foreign Body Ingestion
Enrollment	10 participants
Start Date	2025-10-01
Primary Completion	2026-10-01 (estimated)
Study Completion	2026-12-01 (estimated)
Updated on ClinicalTrials.gov	2026-08-05