Multicenter prospective study analysing the effectiveness and safety of endoscopic band ligation without resection in small (≤15-mm) gastrointestinal subepithelial tumours.~This endoscopic technique will be complemented with a SINK (single-incision needle-knife) biopsy for ensuring the pathological diagnosis of the treated subepithelial tumour.
To analyse the effectiveness and safety of endoscopic band ligation without resection in small gastrointestinal subepithelial tumours.