Table 2 Data related to operative details and tumor pathology
Characteristics | Total patients (n = 83) | TUSE (n = 68) | TASE (n = 15) | P-value |
|---|---|---|---|---|
Overall operative time (min) | 0.011 | |||
Median (range) | 215 (95–455) | 215 (95–455) | 260 (155–455) | |
Mean ± SD | 237 ± 82 | 226 ± 78 | 287 ± 87 | |
Estimated blood loss, mL | 0.884 | |||
Median (range) | 200 (20–1000) | 200 (20–1000) | 300 (50–750) | |
Mean ± SD | 282 ± 191 | 279 ± 196 | 287 ± 171 | |
PRC transfused patients, n (%) | 5 (6.0) | 3 (4.4) | 2 (13.7) | 0.220 |
Intraoperative complications, n (%) | 1.000 | |||
Vascular injury | 1 (1.2) | 1 (1.5) | 0 | |
Major serosal tearing | 2 (2.4) | 2 (2.9) | 0 | |
Total (%) | 3 (3.6) | 3 (4.4) | 0 (0.0) | |
Duration of drain installation, days | 0.371 | |||
Median (range) | 4 (0–14) | 4 (0–14) | 4 (0–9) | |
Mean ± SD | 4.1 ± 2.5 | 4.4 ± 2.9 | 3.6 ± 1.9 | |
Tumor differentiation, n (%) | 0.083 | |||
Well differentiated | 3 (3.6) | 1 (1.5) | 2 (13.3) | |
Moderately differentiated | 80 (96.4) | 67 (98.5) | 13 (86.7) | |
Poorly differentiated | 0 (0.0) | 0 (0.0) | 0 (0.0) | |
Tumor depth (T classification), n (%) | 0.013 | |||
T1 | 16 (19.3) | 11 (16.2) | 5 (33.3) | |
T2 | 22 (26.5) | 15 (22.0) | 7 (46.7) | |
T3 | 45 (54.2) | 42 (61.8) | 3 (20.0) | |
Lymph node metastasis, n (%) | 0.331 | |||
No | 81 (97.6) | 67 (98.5) | 14 (93.3) | |
Yes | 2 (2.4) | 1 (1.5) | 1 (6.7) | |
Tumor stage, n (%) | 0.062 | |||
I | 24 (28.9) | 16 (23.5) | 8 (53.3) | |
II | 19 (22.9) | 17 (25.0) | 2 (13.3) | |
III | 38 (45.8) | 34 (50.0) | 4 (26.7) | |
IV | 2 (2.4) | 1 (1.5) | 1 (6.7) | |
Largest tumor diameter (cm) | 0.220 | |||
Median (range) | 4.0 (0.2–5.0) | 4.0 (0.3–5.0) | 3.0 (2.0–5.0) | |
Mean ± SD | 3.3 ± 1.4 | 3.4 ± 1.3 | 3.0 ± 1.8 | |
Lymph nodes in resected specimen | 0.785 | |||
Median (range) | 17.0 (0–49) | 17.0 (0–49) | 18 (6–41) | |
Mean ± SD | 17.1 ± 9.3 | 17.0 ± 9.4 | 17.7 ± 9.6 | |
Proximal margin (cm) | 0.744 | |||
Median (range) | 7.0 (3.0–105.0) | 6.0 (3–105) | 8.0 (4.0–20.0) | |
Mean ± SD | 10.0 ± 12.2 | 9.4 ± 13.2 | 9.5 ± 4.6 | |
Distal margin (cm) | 0.359 | |||
Median (range) | 5.0 (2.0–37.0) | 5.4 (3–37) | 5.0 (4.0–12.5) | |
Mean ± SD | 7.0 ± 5.0 | 7.2 ± 5.2 | 6.2 ± 2.7 | |
Perineural invasion, n (%) | 0.749 | |||
No | 61 (73.5) | 49 (72.1) | 12 (80.0) | |
Yes | 22 (26.5) | 19 (27.9) | 3 (20.0) | |
Lymphovascular invasion, n (%) | 0.007 | |||
No | 16 (19.3) | 9 (13.2) | 7 (46.7) | |
Yes | 67 (80.7) | 59 (86.8) | 8 (53.3) |