Validation of the BEST-J score, a prediction model for delayed bleeding after gastric endoscopic submucosal dissection, in a Western center

Aims Endoscopic submucosal dissection (ESD) is widely implemented in Asia. BEST J-score is a clinically useful prediction model validated in 2021, based on this population, to stratify the risk of delayed bleeding (DB) after gastric ESD. Experience from the Western world is still scarce. The aim of our study is to validate BEST-J score in a Western sample.