Endoscopic Management of Nonlifting Colon Polyps

Table 1

Patient and lesion characteristics.

Patient age	Median 69 years, range 37–85
Sex	17 male (65%), 9 female (35%)
Lesion size	Median 20 mm, range 10–50 mm
Location	Right colon or transverse 17 (65%); Descending or sigmoid 8 (31%); Rectum 1 (4%)
Morphology	Sessile 18 (69%); Flat 8 (31%)
Prior therapy	Partial polypectomy 17 (65%); Tattoo under lesion 4 (15%); Biopsy only 3 (12%); Lesion at surgical anastomosis 1 (4%); Lesion involving diverticulum 1 (4%)
Nonlifting	Completely nonlifting 12 (46%); Nonlifting on one side 11 (42%); Nonlifting in center 3 (12%)
Pathology	Invasive cancer 1 (4%); High grade dysplasia 2 (8%); Adenoma 23 (88%)
Technical success	Piecemeal EMR with APC 19 (73%); One piece EMR with APC 3 (12%); One piece EMR without APC 3 (12%); EMR abandoned (technical inability) 1 (4%)
Complications	Bleeding 1 (4%); Perforation 0 (0%)

Recurrent adenoma 5 of 19 patients who had repeat colonoscopy (26%).