Table 2.
Recurrences of pT1 rectal cancer patients after TEM/TAMIS (n = 36)
| n (%) | |
|---|---|
| Tumour risk | |
| Low-risk | 24 (66.7) |
| High-risk | 9 (25.0) |
| Missing | 3 (8.3) |
| Location recurrence | |
| Local | 34 (94.4) |
| Distant | 11 (30.6) |
| Local and distant | 9 (25.0) |
| Median time to local recurrence in months | 11.1 (2.3–82.6) |
| Median time from TEM/TAMIS to salvage surgery in months | 12.5 (4.4–58.4) |
| Location of local recurrence (pre-operative assessment) | |
| Intraluminal | 29 (85.3) |
| Nodal recurrence | 5 (14.7) |
| Treatment of local recurrence | |
| No surgery | 7 (20.6) |
| Salvage surgery | 27 (79.4) |
| APR | 13 (48.1) |
| LAR | 14 (51.9) |
| Radiotherapy | |
| None/not applicable | 9 (26.5) |
| Short-course radiotherapy | 13 (38.2) |
| Chemoradiation | 11 (32.4) |
| Long course radiotherapy | 1 (2.9) |
| Pathological T-stage local recurrence | |
| pT0 | 2 (7.4) |
| pT1 | 5 (18.5) |
| pT2 | 2 (7.4) |
| pT3 | 12 (44.4) |
| pT4 | 2 (7.4) |
| Missing | 4 (14.8) |
| Pathological N-stage local recurrence | |
| pN0 | 12 (44.4) |
| pN1 | 9 (33.3) |
| pN2 | 2 (7.4) |
| Missing | 4 (14.8) |
| Local recurrence diagnosed based on | |
| MRI, endoscopy, ERUS | 14 (41.2) |
| MRI, endoscopy | 5 (14.7) |
| MRI, ERUS | 1 (2.9) |
| Endoscopy, ERUS | 1 (2.9) |
| MRI | 7 (20.6) |
| Endoscopy | 5 (14.7) |
| Missing | 1 (2.9) |
TEM transanal endoscopic microsurgery, TAMIS transanal minimally invasive surgery, APR abdominal perineal resection, LAR low anterior resection, MRI magnetic resonance imaging, ERUS endorectal ultrasound