TABLE 2.
Operative and Postoperative Outcomes
| Variable | Total Cohort |
|---|---|
| N = 706 | |
| Operative procedure, n (%) | |
| Anterior resection | 166 (23.5) |
| Intersphincteric resection | 318 (45.0) |
| Abdominoperineal resection | 193 (27.3) |
| Hartmann | 25 (3.5) |
| Other | 4 (0.6) |
| Combined resection, n (%) | |
| Prostate | 8 (1.1) |
| Vagina | 13 (1.8) |
| Uterus | 4 (0.6) |
| Other | 54 (7.6) |
| Lymph node dissection*, n (%) | |
| prxD2 | 63 (8.9) |
| prxD3 | 643 (91.1) |
| LLND, n (%) | |
| Unilateral | 78 (11.0) |
| Bilateral | 159 (22.5) |
| No | 469 (66.4) |
| Autonomic nerve resection, n (%) | |
| Unilateral | 35 (5.0) |
| Bilateral | 17 (2.4) |
| No | 654 (92.6) |
| Abdominal approach, n (%) | |
| Open | 10 (1.4) |
| Laparoscopic | 570 (80.7) |
| Robotic | 126 (17.8) |
| Diverting stoma, n (%) | 425 (60.2) |
| Type of anastomosis, n (%) | |
| None | 219 (31.0) |
| SST | 147 (20.8) |
| Hand-sewn | 325 (46.0) |
| Other | 15 (2.1) |
| Operation time (min), median (IQR) | 412 (310, 537) |
| Estimated blood loss (g), median (IQR) | 50 (10, 120) |
| Transfusion, n (%) | |
| Yes | 25 (3.5) |
| No | 681 (96.5) |
| Purse-string suture†, n (%) | |
| Single | 157 (22.2) |
| Double or more | 545 (77.2) |
| Missing | 4 (0.6) |
| Adverse events during TaTME, n (%) | |
| Purse-string failure | 14 (2.0) |
| Visceral injury | |
| Rectum | 11 (1.6) |
| Vagina | 6 (0.8) |
| Urethra | 1 (0.1) |
| Autonomic nerve | 3 (0.4) |
| Bleeding | 4 (0.6) |
| Conversion | 3 (0.4) |
| Other | 5 (0.7) |
| Postoperative complications, n (%) | |
| CD grade ≥2 | 173 (24.5) |
| CD grade ≥3 | 90 (12.7) |
*
According to the Japanese Classification of Colorectal, Appendiceal, and Anal Carcinoma.
†
The interrupted suture to close the rectum for intersphincteric resection was classified into double or more purse-string sutures.
CD indicates Clavien–Dindo classification; IQR, interquartile range; LLND, lateral pelvic lymph node dissection; SST, single stapling technique; TaTME, transanal total mesorectal excision.