Endoscopy
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Submucosal tunneling endoscopic resection (STER) has become a potential option for the endoscopic treatment of a selected group of patients with submucosal tumors (SMTs) originating from the muscularis propria layer in the upper gastrointestinal tract. The aim of this retrospective study was to analyze the incidence and management of STER-related complications. ⋯ Although the incidence of STER-related complications was relatively high, most of these complications were minor and did not require therapeutic intervention. STER is a safe technique for the treatment of upper gastrointestinal SMTs.