Expanding the therapeutic spectrum for duodenal adenomas: Cryoballoon ablation

Table 1 Summarizes the relative advantages, limitations, and ideal indications for endoscopic mucosal resection, endoscopic submucosal dissection, argon plasma coagulation, and cryoballoon ablation, highlighting the therapeutic niche where cryoballoon ablation may offer benefit

Treatment	Advantages	Limitations	Major risks	Best candidates
EMR[6,7]	Widely available; first-line therapy	Difficult in large or fibrotic lesions; non-lifting	Delayed bleeding (17%-20%); perforation (4%-5%)	≤ 20-30 mm, non-fibrotic lesions[6,7]
Cold snare resection[9]	Non-thermal; Lower perforation risk; technically simple	Limited in fibrotic or non-lifting lesions; piecemeal in larger lesions	Delayed bleeding (low); recurrence possible	Small-to-medium (≤ 15-20 mm), non-fibrotic lesions
ESD[12,28]	En bloc resection with clear margins	Technically demanding; limited working space in duodenum	Perforation (20%-45%) delayed bleeding	Highly selected lesions in expert centers
APC[12,30]	Simple; useful for small residual areas	Limited depth; higher recurrence	Rare delayed bleeding; thermal spread possible	Small residual adenoma within scar tissue
CBA[15,26]	Favorable safety profile; uniform, depth-limited injury	Superficial ablation only; may require repeat sessions; no histology	Mild pancreatitis; uneven balloon-mucosa contact; no perforations reported in published series	Flat, fibrotic, recurrent, non-circumferential lesions

EMR: Endoscopic mucosal resection; ESD: Endoscopic submucosal dissection; APC: Argon plasma coagulation; CBA: Cryoballoon ablation.

Table 2 Clinical advantages and appropriate indications of cryoballoon ablation

Potential advantages	Appropriate indications	Lesions unsuitable for CBA
Depth-limited uniform injury (reduced perforation risk)	Benign non-ampullary duodenal adenomas (Paris 0-IIa/IIb)	Bulky circumferential lesions (> 5 cm)
Preservation of submucosal collagen matrix	Recurrent or fibrotic (non-lifting) lesions	Suspected deep submucosal invasion
Non-thermal mechanism avoiding coagulative necrosis	Residual adenoma within scar tissue or near clips	Lesions requiring histologic margin assessment
Technically simple balloon-based delivery system	Lesions in angulated or technically challenging locations

CBA: Cryoballoon ablation.