Prospective multicenter trial of the cryoballoon ablation system for superficial esophageal squamous cell carcinoma on post-endoscopic resection scars: a CRYO-SCAR study (EPOC1902).

CBAS is a potentially safe and effective approach for SESCC on post-endoscopic resection scars and represents an encouraging alternative to traditional endoscopic treatments. (Clinical trial registration numbers: NCT03097666 and jRCT1080225331.).