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. 2019 Aug 8;7(8):E994–E1001. doi: 10.1055/a-0953-2021

Table 2. Features of endoscopic resection of colonic polyps by EMR/ESD in patients with IBD.

Characteristics
Median size of polyp (mm)  15 (10 – 60)
  • Less than 20 mm

 68 (54.8 %)
  • Equal to or greater than 20 mm

 56 (45.1 %)
Location of polyps, n (%)
Ileo-cecal valve/cecum   5 (4 %)
Ascending colon  55 (44.4 %)
Transverse colon  19 (15.3 %)
Descending colon   9 (7.3 %)
Sigmoid colon  23 (18.5 %)
Rectum  13 (10.5 %)
Morphology (Paris classification), n (%)
Polypoid pedunculated   7 (5.6 %)
Polypoid sessile  69 (55.6 %)
Non polypoid superficial elevated  45 (36.3 %)
Non polypoid flat   2 (1.6 %)
Non polypoid depressed   1 (0.8 %)
Procedure type, n (%)
ESD   3 (2.4 %)
EMR 118 (95.2 %)
ESD and EMR   3 (2.4 %)
Resectioning technique, n (%)
En bloc  88 (70.9 %)
Piecemeal  36 (29.0 %)
Type of snare used, n (%)
Standard/small 113 (91.1 %)
Spiral  13 (10.2 %)
Crescent   1 (0.8 %)
Additional therapy, n (%)
APC  50 (40.3 %)
Hot biopsy avulsion   9 (7.2 %)
Hot snare 109 (87.9 %)
Cold biopsy  11 (8.8 %)
Cold snare   9 (7.2 %)
Polyps needing clips used, n (%)  65 (52.4 %)
Histology, n (%)
Tubular adenoma, low grade dysplasia  75 (60.5 %)
Tubulovillous adenoma, low grade dysplasia  14 (11.3 %)
Serrated  31 (19.7 %)
Adenocarcinoma   3 (1.9 %)
Hyperplastic  22 (14 %)
Surgery within 12 months of polypectomy  11 (11.3 %)
Recurrence, n (%)
1 recurrence  20 (16 %)
2 recurrences   9 (45 %)
3 recurrences   3 (33.3 %)

EMR, endoscopic mucosal resection; ESD, endoscopic submucosal dissection; IBD, inflammatory bowel disease; APC, adenomatous polyposis coli