Short-Term Safety of Gastric Endoscopic Submucosal Dissection in Patients Aged 80 Years or Older Under a Standardized Inpatient Post-Procedural Surveillance Pathway: Data from a 13-Year Real-World Cohort Study

Background/Objectives: Gastric endoscopic submucosal dissection (ESD) is an established organ-preserving treatment for gastric neoplasia, but the short-term safety of ESD in patients aged 80 years or older remains clinically important. We evaluated the efficacy and short-term safety of gastric ESD in patients aged ≥80 years treated under a standardized inpatient post-procedural surveillance pathway.