Polyp size, histology and 3 month recurrence for patients undergoing endoscopic mucosal resection (EMR) between 2008 and 2011
| 2008 | 2009 | 2010 | 2011 | |
|---|---|---|---|---|
| Patients undergoing EMR (n) | 11 | 23 | 48 | 33 |
| EMRs performed (n)* | 11 | 26 | 48 | 35 |
| Mean time from consent letter to index EMR in days (range) | 34.25 (15–48) | 30.29 (4–56) | 31.57 (4–80) | 35.58 (2–169) |
| Relative size of polyps | ||||
| <20 mm (%) | 54.55 | 50 | 35.42 | 17.14 |
| 20–29 mm (%) | 9.09 | 11.54 | 27.08 | 25.71 |
| ≥30 mm (%) | 36.36 | 38.46 | 37.5 | 57.14 |
| Range of polyp size (mm) | 8–80 | 10–80 | 4–120 | 10–60 |
| Ultimate histology | ||||
| Adenoma: n (%) | 8/11 (72.73) | 24/26 (92.31) | 40/48 (83.33) | 32/35 (91.43) |
| Malignancy: n (%) | 1/11 (9.09) | 1/26 (3.85) | 3/48 (6.25) | 1/35 (2.86) |
| Hyperplastic/metaplastic/inflammatory: n (%) | 2/11 (18.18) | 1/26 (3.85) | 5/48 (10.42) | 2/35 (5.71) |
| Polyp recurrence at 3 month endoscopy: n (%) | ||||
| Overall | 6/8 (75.00) | 7/15 (46.7) | 8/36 (22.22) | 1/21 (4.76) |
| <20 mm (n) | 2 | 2 | 1 | |
| 20–29 mm (n) | 1 | 3 | ||
| ≥30 mm (n) | 4 | 4 | 4 | 1 |
*A small number of patients had more than one polyp requiring EMR.