Table 1.
Patient and tumor characteristics (n=81)
| Variable | Type of Resection | p | |
|---|---|---|---|
| ELAPE | APE | ||
| Gender (M/F) | 25 (17/8) | 56 (37/19) | 0.865 |
| Age (yr) Mean+SD | 60.3+13.5 | 56.8+14.1 | |
| Median (Range) | 58 (40–85) | 57 (27–84) | 0.293 |
| BMI Mean+SD | 26.7+4.7 | 26.6+4.9 | 0.952 |
| Tumor Stage | |||
| I | 3 (12.0) | 13 (23.2) | 0.217 |
| II | 12 (48.0) | 14 (25.0) | |
| III | 9 (36.0) | 26 (46.4) | |
| IV | 1 (4.0) | 3 (5.4) | |
| Differentiation | |||
| Well | 6 (24.0) | 23 (41.1) | 0.114 |
| Moderate | 16 (64.0) | 19 (33.9) | |
| Poor | - | 3 (5.4) | |
| Muscinous | 3 (12.0) | 9 (16.1) | |
| Missing Data | - | 2 (3.6) | |
| Intraoperative perforation | 1 (4.0) | 5 (8.9) | 0.826 |
| CRM (+) | 3 (12.0) | 11 (20.0) | 0.531 |
| Operation time (minutes, Mean+SD) | 301.5+45.5 | 213.7+63.3 | <0.001 |
| Median (Range) 300 | (240–420) | 210(90–400) | |
| EBL (mL) Mean+SD | 276.1+156.6 | 289.1+162.6 | 0.876 |
| Neoadjuvant CRT | 9 (36.0) | 6 (14.3) | 0.012 |
| Perineal wound complication | 4 (16.0) | 1 (1.8) | 0.030 |
| Local recurrence | 4% | 3.6% | 1.0 |
| Follow-up (months, Mean+SD) | 44.7+23.5 | 70.6+34.3 | - |
| Median (Range) | 46(1–74) | 78(2–141) | |
ELAPE: Extralevator abdominoperineal excision; APE: abdominoperineal excision; BMI: body mass index; CRM: circumferential resection margin; CRT: chemoradiotherapy; EBL: estimated blood loss. Figures in the parentheses depict percentages.