Traction is most important for the widespread use of endoscopic submucosal dissection, especially in procedures presenting particular difficulty

We read the article from Su et al. [1] with great interest. The authors re-evaluated the safety and efficacy of traction-assisted endoscopic submucosal dissection (TA-ESD) relative to conventional ESD (C-ESD) in a study that was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. They performed subgroup analyses according to lesion location and meta-regression using lesion size.