Table 2 a Surgical characteristics (N = 93). b Surgical histopathology (N = 93)
Before PSM | After PSM | |||||
|---|---|---|---|---|---|---|
ArtiSential® (n = 32) | Straight (n = 61) | P value | ArtiSential® (n = 32) | Straight (n = 20) | P value | |
a | ||||||
Operation type | 0.062 | 0.875 | ||||
Low anterior resection | 25 (78.1) | 56 (91.8) | 25 (78.1) | 16 (80.0) | ||
Ultralow anterior resection | 7 (21.9) | 5 (8.2) | 7 (21.9) | 4 (20.0) | ||
Anastomosis | *0.032 | 0.378 | ||||
Stapling | 26 (81.3) | 58 (95.1) | 26 (81.3) | 18 (90.0) | ||
Hand sewing | 6 (18.8) | 3 (4.9) | 6 (18.8) | 2 (10.0) | ||
Diverting stoma | *0.007 | 0.337 | ||||
Yes | 22 (68.8) | 24 (39.3) | 22 (68.8) | 11 (55.0) | ||
No | 10 (31.3) | 37 (60.7) | 10 (31.3) | 9 (45.0) | ||
Conversion | 0.466 | 0.33 | ||||
Yes | 0 (0) | 1 (1.6) | 0 (0) | 1 (5.0) | ||
No | 32 (100) | 60 (98.4) | 32 (100) | 19 (95.0) | ||
Operative time (min) | 147.2 ± 46.7 | 188.1 ± 57.9 | *0.001 | 147.2 ± 46.7 | 193.6 ± 76.1 | *0.021 |
EBL (mL) | 128.3 ± 115.1 | 169.7 ± 167.0 | 0.213 | 128.3 ± 115.1 | 213.5 ± 244.0 | 0.156 |
Intraoperative transfusion | 0.202 | 0.33 | ||||
Yes | 0 (0) | 3 (4.9) | 0 (0) | 1 (5.0) | ||
No | 32 (100) | 58 (95.1) | 32 (100) | 19 (95.0) | ||
b | ||||||
Histology | > 0.999 | 0.648 | ||||
WD/MD | 30 (93.8) | 56 (91.8) | 30 (93.8) | 18 (90.0) | ||
PD/Mucinous | 2 (6.3) | 5 (8.2) | 2 (6.3) | 2 (10.0) | ||
AJCC Stages | 0.868 | 0.215 | ||||
0/I | 14 (43.8) | 22 (36.1) | 14 (43.8) | 11 (55.0) | ||
II | 7 (21.9) | 13 (21.3) | 7 (21.9) | 5 (25.0) | ||
III | 9 (28.1) | 22 (36.1) | 9 (28.1) | 4 (20.0) | ||
IV | 2 (6.3) | 4 (6.6) | 2 (6.3) | 0 (0) | ||
Pathologic T category | 0.767 | 0.683 | ||||
T0/1 | 8 (25.0) | 14 (23.0) | 8 (25.0) | 5 (25.0) | ||
T2 | 10 (31.3) | 14 (23.0) | 10 (31.3) | 7 (35.0) | ||
T3 | 12 (37.5) | 27 (44.3) | 12 (37.5) | 8 (40.0) | ||
T4 | 2 (6.3) | 6 (9.8) | 2 (6.3) | 0 (0) | ||
Pathologic N category | 0.507 | 0.431 | ||||
N0 | 21 (65.6) | 37 (60.7) | 21 (65.6) | 16 (80.0) | ||
N1 | 10 (31.3) | 18 (29.5) | 10 (31.3) | 3 (15.0) | ||
N2 | 1 (3.1) | 6 (9.8) | 1 (3.1) | 1 (5.0) | ||
Harvested LNs | 15.3 ± 4.7 | 19.3 ± 8.3 | *0.004 | 15.3 ± 4.7 | 20.0 ± 9.3 | *0.048 |
Harvested LNs | 0.756 | 0.567 | ||||
≥ 12 | 29 (90.6) | 54 (88.5) | 29 (90.6) | 17 (85.0) | ||
< 12 | 3 (9.4) | 7 (11.5) | 3 (9.4) | 3 (15.0) | ||
TME quality | 0.639 | 0.325 | ||||
Complete | 31 (96.9) | 60 (98.4) | 31 (96.9) | 20 (100.0) | ||
Nearly complete | 0 (0) | 0 (0) | 0 (0) | 0 (0) | ||
Incomplete | 1 (3.1) | 1 (1.6) | 1 (3.1) | 0 (0) | ||
CRM (mm) | 0.166 | 0.648 | ||||
≤ 1 | 2 (6.3) | 10 (16.4) | 2 (6.3) | 2 (10.0) | ||
> 1 | 30 (93.8) | 51 (83.6) | 30 (93.8) | 18 (90.0) | ||
DRM (mm) | 0.412 | 0.556 | ||||
≤ 5 | 5 (15.6) | 6 (9.8) | 5 (15.6) | 2 (10.0) | ||
> 5 | 27 (84.4) | 55 (53.8) | 27 (84.4) | 18 (90.0) | ||