Table 2.
Operative outcomes of gastric cancer patients who underwent RADG or LADG.
| Operative outcomes | RADG (n = 285) | LADG (n = 285) | P value |
|---|---|---|---|
| Total operative time, min | 186 ± 12 (156–224) | 147 ± 9 (126–168) | 0.000a |
| Setup time, min | 40 ± 3 (33–49) | 12 ± 1 (10–17) | 0.000a |
| Mini-invasive resection surgical time, min | 106 ± 11 (77–136) | 104 ± 8 (78–126) | 0.276a |
| Laparotomy operation time, min | 40 ± 3 (32–48) | 30 ± 3 (25–41) | 0.000a |
| Operative blood loss, mL | 150 ± 151 (50–1000) | 166 ± 139 (50–1300) | 0.000a |
| Time to first flatus, hours | 55.5 ± 6.5 (42.0–76.0) | 56.4 ± 12.1 (39.0–80.0) | 0.513a |
| Time to remove stomach tube, days | 4.5 ± 4.1 (3.0–34.0) | 5.0 ± 5.1 (3.0–35.0) | 0.347a |
| Time to liquid diet, days | 5.5 ± 4.1 (3.0–35.0) | 6.0 ± 5.1 (3.0–36.0) | 0.516a |
| Time to semi-liquid diet, days | 6.6 ± 4.2 (3.0–36.0) | 7.1 ± 5.2 (3.0–36.0) | 0.606a |
| Postoperative volume of abdominal drainage, mL | 397 ± 361 (150–4100) | 520 ± 503 (200–3900) | 0.000a |
| Time to remove abdominal drainage tube, days | 6.3 ± 3.2 (4.0–35.0) | 7.1 ± 4.5 (4.0–38.0) | 0.002a |
| Perineural invasion, n (%) | 116 (40.7) | 114 (40.0) | 0.864a |
| Lymphovascular invasion, n (%) | 109 (38.2) | 106 (37.2) | 0.795a |
| Numbers of retrieved lymph nodes | 26.4 ± 3.7 (18.0–34.0) | 22.6 ± 3.8 (16.0–32.0) | 0.000b |
| Postoperative blood transfusion, n (%) | 6 (2.1%) | 16 (5.6%) | 0.030c |
| Postoperative length of stay, days | 9.0 ± 4.5 (6.0–38.0) | 9.5 ± 5.3 (5.0–40.0) | 0.066a |
| Unplanned readmission, n (%)* | 6 (2.1%) | 7 (2.5%) | 0.779c |
LADG: laparoscopic assisted distal gastrectomy; RADG: robotic assisted distal gastrectomy.
*Within 30 days after operation.
aMann–Whitney U test.
bStudent’s t test.
cPearson’s chi-squared test.