Table 2.
Procedure-related outcomes.
| Total (n = 47) | Polyp size ≥15 mm (n = 7) | Polyp size <15 mm (n = 40) | p-value | |
|---|---|---|---|---|
| R0 resection rate, n (%) | 38 (80.9) | 3 (42.9) | 35 (87.5) | <0.01 |
| R1 resection rate, n (%) | 3 (6.4) | 2 (28.6) | 1 (2.5) | |
| Rx resection rate, n (%) | 6 (12.8) | 2 (28.6) | 4 (10.0) | |
| Muscle entrapment, n (%) | 9 (19.1) | 5 (71.4) | 4 (10.0) | <0.01 |
| En bloc resection rate, n (%) | 46 (97.9) | 6 (85.7) | 40 (100) | 0.15 |
| Piecemeal resection rate, n (%) | 1 (2.1) | 1 (14.3) | 0 | |
| Technical success, n (%) | 47 (100) | 7 (100) | 40 (100) | |
| Median procedure time, seconds (range) | 71 (42–607) | 110 (69–379) | 68 (42–607) | 0.16 |
| Histologic type, n (%) | 0.12 | |||
| Sessile serrated adenoma/polyps | 6 (12.8) | 2 (28.6) | 4 (10.0) | |
| Tubular adenoma | 39 (83.0) | 4 (57.1) | 35 (87.5) | |
| Tubulovillous adenoma | 2 (4.3) | 1 (14.3) | 1 (2.5) | |
| Villous adenoma | 0 | 0 | 0 | |
| Intramucosal adenocarcinoma | 0 | 0 | 0 | |
| Submucosal adenocarcinoma | 0 | 0 | 0 | |
| Fluid infusion (mL), median (range) | 50 (30–130) | 70 (40–130) | 50 (30–120) | <0.01 |
| Snare tip ablation, n (%) | 13 (27.7) | 3 (42.9) | 10 (25.0) | 0.38 |
| Coagrasper use, n (%) | 3 (6.4) | 2 (28.6) | 1 (2.5) | 0.054 |
| Endoscopic clipping, n (%) | 0 | 0 | 0 |