Effect of polyglycolic acid sheet plus esophageal stent placement in preventing esophageal stricture after endoscopic submucosal dissection in patients with early-stage esophageal cancer: A randomized, controlled trial

Figure 4 Comparison of post-endoscopic submucosal dissection stricture in polyglycolic acid plus stent and stent groups. A: Patients in the polyglycolic acid (PGA) plus stent group had a lower occurrence rate of esophageal stricture than that in the stent group; B: No difference in time to esophageal stricture was observed between the PGA plus stent and stent groups. Comparison of post-endoscopic submucosal dissection stricture in the PGA plus stent and stent groups was performed by t-test. P < 0.05 was considered significant.