Compared to Stent group (only stent placement was performed) what was the result of polyglycolic acid (PGA) plus stent group (PGA sheet-coated stent placement was performed) on Times of balloon dilatation?
The occurrence rate of esophageal stricture in the PGA plus stent group was 20.5% (n = 7), which was lower than that in the stent group (46.9%, n = 15) (P = 0.024).