perioperative-related indicators | Not Reinforced (n = 205) | Reinforced (n = 407) | Volume | p |
---|---|---|---|---|
Operative data | ||||
 operative time for Total gastrectomy, min, median(range) | 125(107 ~ 154) | 130(105 ~ 161) | z = -0.777 | 0.437 |
 operative time for Distal gastrectomy, min, median(range) | 181(162 ~ 205) | 188(167 ~ 206) | z = -1.645 | 0.100 |
 time for reinforcement of stapled duodenal stump, min, ± SD | - | 4.948 ± 1.9813 | - | - |
 Blood loss, ml, median(range) | 123(92 ~ 159) | 125(90 ~ 160) | z = -0.031 | 0.975 |
Pathologic data | ||||
 Distance from distal resection margin for Distal gastrectomy (cm) (± SD) | 4.8 ± 2.14 | 5.1 ± 2.30 | t = -0.669 | 0.504 |
 Retrieved lymph nodes, n, median(range) | 33(19 ~ 44) | 32(21 ~ 45) | z = -0.688 | 0.492 |
 Positive margins, n (%) | 2(1.0%) | 3(0.7%) | χ2 = 0.096 | 0.757 |
Postoperative recovery | ||||
 First flatus, d, median(range) | 2(1 ~ 3) | 2(1 ~ 3) | z = -0.107 | 0.915 |
 First exhaust, h, median(range) | 49(41 ~ 56) | 50(40 ~ 59) | z = -0.305 | 0.76 |
 Postoperative hospital stay, days, (± SD) | 10.90 ± 3.664 | 10.42 ± 2.524 | t = 1.906 | 0.057 |
Related complications | ||||
 Intra-abdominal infection | 4(2.0%) | 7(1.7%) | χ2 = 0.041 | 0.839 |
 Wound infection | 9(4.4%) | 8(2.0%) | χ2 = 2.968 | 0.085 |
 Bleeding | 2(1.0%) | 3(0.7%) | - | 0.757 |
 obstruction | 5(2.4%) | 10(2.5%) | χ2 = 0.012 | 0.913 |
 Fluid collection and abscess | 4(2.0%) | 10(2.5%) | χ2 = 0.156 | 0.693 |
 Pancreatic leakage a | 5(2.4%) | 16(3.9%) | χ2 = 0.916 | 0.339 |
 Anastomotic leakage | 4(2.0%) | 7(1.7%) | χ2 = 0.041 | 0.839 |
 Duodenal stump leakage | 5(2.4%) | 3(0.7%) | - | 0.126 |
 Reoperation for duodenal stump leakage | 2(1.0%) | 0 | - | 0.046* |
 Reoperation for duodenal stump leakage-related death | 1(0.5%) | 0 | - | 0.158 |
 Clavien–Dindo morbidity b |  |  | χ2 = 1.802 | 0.406 |
 I–II, n (%) | 38(18.5%) | 60(14.7%) |  |  |
 III–IV, n (%) | 3(1.5%) | 4(1.0%) |  |  |