Copyright
©The Author(s) 2023.
World J Gastrointest Endosc. May 16, 2023; 15(5): 386-396
Published online May 16, 2023. doi: 10.4253/wjge.v15.i5.386
Published online May 16, 2023. doi: 10.4253/wjge.v15.i5.386
Table 2 Endoscopic results of appendiceal polyp resection by procedure type, n (%)
Total | EMR | ESD | Hybrid EMR/ESD | P value | |
Total patients (n) | 19 | 5 | 6 | 8 | |
Polyp Appearance (mean ± SD) | |||||
Size (mm) | 25.5 ± 14.2 | 26.0 ± 13.4 | 25.0 ± 18.4 | 25.6 ± 13.2 | 0.99 |
Localized to appendix (at or inside the appendiceal orifice) | 14 (74) | 3 (60) | 6 (100) | 5 (63) | |
50% or more involvement of the appendiceal orifice | 13 (68) | 3 (60) | 5 (83) | 5 (63) | |
Granular, lateral-spreading | 5 (26) | 0 (0) | 2 (33) | 3 (30) | |
Flat, lateral-spreading | 1 (5) | 0 (0) | 0 (0) | 1 (13) | |
Not lateral-spreading | 13 (68) | 5 (100) | 4 (67) | 4 (50) | |
Paris classification: Is | 12 (63) | 3 (60) | 2 (33) | 7 (88) | |
Lesion fibrosis | 2 (11) | 0 (0) | 0 (0) | 2 (25) | |
Procedure (mean ± SD) | |||||
Duration of Procedure (min) | 61.6 ± 37.9 | 43.8 ± 31.5 | 71.0 ± 54.4 | 65.8 ± 26.1 | 0.48 |
Procedures needing clips | 18 (95) | 4 (80) | 6 (100) | 8 (100) | |
Number of clips used | 3.9 ± 1.6 | 2.8 ± 0.5 | 3.5 ± 2.2 | 5.0 ± 1.2 | 0.02 |
Additional resection of non-appendiceal polyps | 4 (21) | 2 (40) | 0 (0) | 2 (25) | |
ESD knife used (DualKnife/Orise ProKnife) | N/A | N/A | 4/2 (67/33) | 7/1 (88/12) | |
Traction method used | 3 (21) | 0 (0) | 1 (16.7) | 2 (25) | |
Stabilization (Dilumen or Pathfinder) | 10 (53) | 1 (20) | 4 (67) | 5 (63) | |
Hemostasis needed (with Cograsper) | 3 (16) | 0 (0) | 2 (33) | 1 (13) | |
Outcome (mean ± SD) | |||||
Admission for post-procedure observation | 2 (11) | 0 (0) | 1 (17) | 1 (13) | |
Duration of Admission (d) | 2.5 ± 2.1 | 0 ± 0 | 4.0 ± 0 | 1.0 ± 0 | |
Post-Procedure Pain | 1 (5) | 0 (0) | 1 (17) | 0 (0) | |
Adenoma on pathology report | 19 (100) | 5 (100) | 6 (100) | 8 (100) | |
Submucosal/Perineural/Lymphovascular Invasion | 0 (0) | 0 (0) | 0 (0) | 0 (0) | |
R0 rate for en bloc resection | 14 (88)a | 4 (80) | 6 (100) | 4 (80)a | 0.56 |
Curative resection rate | 14 (74) | 4 (80) | 6 (100) | 4 (50) | 0.11 |
En Bloc resection rate | 16 (84) | 5 (100) | 6 (100) | 5 (63) | 0.09 |
Repeat colonoscopy done | 8 (57)b | 0 (0) | 2 (67)b | 6 (75) |
- Citation: Patel AP, Khalaf MA, Riojas-Barrett M, Keihanian T, Othman MO. Expanding endoscopic boundaries: Endoscopic resection of large appendiceal orifice polyps with endoscopic mucosal resection and endoscopic submucosal dissection. World J Gastrointest Endosc 2023; 15(5): 386-396
- URL: https://www.wjgnet.com/1948-5190/full/v15/i5/386.htm
- DOI: https://dx.doi.org/10.4253/wjge.v15.i5.386