Table 3 Perioperative outcomes of 141 rectal cancer patients with or without pathological LPNM before and after matching
Variables | Original cohort | Matched cohort | ||||
|---|---|---|---|---|---|---|
LPNM (n = 29) | Non-LPNM (n = 112) | P | LPNM (n = 29) | Non-LPNM (n = 29) | P | |
Types of operation (%) | 0.428 | 0.883 | ||||
Low anterior resection | 11 (37.9) | 54 (48.2) | 11 (37.9) | 10 (34.5) | ||
Abdominoperineal resection | 16 (55.2) | 55 (49.1) | 16 (55.2) | 16 (55.2) | ||
Hartmann procedure | 2 (6.9) | 3 (2.7) | 2 (6.9) | 3 (10.3) | ||
LPND | 0.997 | 0.517 | ||||
Unilateral dissection | 22 (75.9) | 85 (75.9) | 22 (75.9) | 24 (82.8) | ||
Bilateral dissection | 7 (24.1) | 27 (24.1) | 7 (24.1) | 5 (17.2) | ||
Operative time, min (mean ± SD) | 275.4 ± 72.8 | 265.8 ± 76.5 | 0.542 | 275.4 ± 72.8 | 283.3 ± 77.2 | 0.680 |
Estimated blood loss, ml (mean ± SD) | 83.1 ± 61.9 | 84.3 ± 108.7 | 0.955 | 83.1 ± 61.9 | 80.1 ± 91.4 | 0.872 |
Postoperative complications (Grade2-4) | 4 (13.8) | 21 (18.8) | 0.533 | 4 (13.8) | 5 (20.7) | 0.487 |
Postoperative bleeding | 0 (0) | 2 (1.8) | 0 (0) | 0 (0) | ||
Ileus | 1 (3.4) | 2 (1.8) | 1 (3.4) | 1 (3.4) | ||
Anastomosis leakage | 0 (0) | 3 (2.7) | 0 (0) | 1 (3.4) | ||
Pelvic cavity abscess | 1 (3.4) | 2 (1.8) | 1 (3.4) | 1 (3.4) | ||
Pneumonia | 1 (3.4) | 8 (7.1) | 1 (3.4) | 3 (10.3) | ||
Wound infection | 1 (3.4) | 4 (3.6) | 1 (3.4) | 1 (3.4) | ||
Urinary retention | 0 (0) | 2 (1.8) | 0 (0) | 0 (0) | ||
Time to first flatus (day, mean ± SD) | 3.1 ± 1.3 | 3.1 ± 1.4 | 0.868 | 3.1 ± 1.3 | 3.3 ± 1.6 | 0.683 |
Postoperative hospital stay (day, mean ± SD) | 8.9 ± 4.5 | 8.7 ± 5.1 | 0.872 | 8.9 ± 4.5 | 9.3 ± 5.6 | 0.811 |
Re-operation | 0 (0) | 1 (0.9) | 1.000 | 0 (0) | 0 (0) | - |
Mortality | 0 (0) | 0 (0) | - | 0 (0) | 0 (0) | - |