Table 2 Intraoperative parameters characteristics of the 70 patients with rectal cancer and synchronous liver metastases according to their surgical management
| Â | Before matching | After matching | |||||
|---|---|---|---|---|---|---|---|
Overall Population | Staged surgery | Simultaneous surgery | P | Staged surgery | Simultaneous surgery | P | |
Number of patients | 70 | 48 (69) | 22 (31) | – | 22 | 22 | – |
All procedure by laparoscopy, n (%) | 9 (12.9) | 2 (4.2) | 7 (31.8) | 0.0032 | 7 (31.8) | 7 (31.8) | 0.999 |
Laparotomy, n (%) | 36 (51.4) | 27 (56.2) | 9 (41) | 0.3050 | 6 (27.3) | 6 (27.3) | 0.999 |
Mixed*, n (%) | 25 (35.7) | 19 (39.6) | 6 (27.2) | 0.4229 | 4 (18.2) | 0 | 0.040 |
Conversion to laparotomy, n (%) | 8/34 (23.5) | 6/21 (28.6) | 2/13 (15.4) | 0.4438 | 5 (22.7) | 9 (40.9) | 0.195 |
Complete TME, n (%) | 47 (67.1) | 35 (72.9) | 12 (54.5) | 0.1721 | 18 (81.8) | 12 (54.6) | 0.052 |
Partial TME, n (%) | 23 (32.9) | 13 (27.1) | 10 (45.5) | 4 (18.2) | 10 (45.4) | ||
Abdominoperineal resection, n (%) | 16 (22.9) | 11 (22.9) | 5 (22.7) | 1.000 | 5 (22.7) | 5 (22.7) | 0.999 |
Anastomosis technique, n (%) | Â | ||||||
Mechanical (stapled) | 51/54 (94.4) | 35/37 (94.6) | 16/17 | 1.000 | 21 (95.5) | 20 (90.9) | 0.549 |
Manual | 3/54 (5.6) | 2/37 (5.4) | 1/17 | 1 (4.5) | 2 (9.1) | ||
Liver surgery, n (%) | Â | ||||||
Minor hepatectomy | 45 (64.3) | 24 (50) | 21 (95.5) | 0.0001 | 21 (95.5) | 20 (90.9) | 0.549 |
Major hepatectomy | 25 (35.7) | 24 (50) | 1 (4.5) | 1 (4.5) | 2 (9.1) | ||
Associated radiofrequency ablation | 7 (10) | 7 (14.6) | 0 | 0.0893 | 2 (9.1) | 1 (4.5) | 0.549 |
Duration of Pringle maneuver (minutes), median ± IQR | 30.5 (19–45) | 30 (25–45) | 13 (11–18) | 0.1409 | 25 (0–30) | 13 (0–63) | 0.999 |
Diverting stoma, n (%) | 34 (48.6) | 21 (43.8) | 13 (59.1) | 0.3050 | 7 (31.8) | 12 (27.3) | 0.128 |
Delay between first and second surgery (months), median ± IQR | 6 (4–8) | 6 (4–8) | – | – | 2 (0–5) | – |  |