Table 1.
Patients characteristics and surgical outcomes
| Variables | N (number=606) | Percentage (%) |
|---|---|---|
| Age (year) | 56.79±10.50 | |
| Gender | ||
| Male | 445 | 73.43 |
| Female | 161 | 26.57 |
| BMI | 22.21±2.94 | |
| Tumor location | ||
| Upper third | 103 | 16.99 |
| Middle third | 263 | 43.4 |
| Lower third | 221 | 36.48 |
| Remnant | 19 | 3.13 |
| TNM stage | ||
| IA | 99 | 16.34 |
| IB | 65 | 10.73 |
| IIA | 32 | 5.28 |
| IIB | 119 | 19.63 |
| IIIA | 75 | 12.38 |
| IIIB | 70 | 11.55 |
| IIIC | 115 | 18.98 |
| IV | 31 | 5.11 |
| Histologic grade | ||
| Well differentiated | 18 | 2.97 |
| Moderately differentiated | 149 | 24.59 |
| Poorly differentiated | 390 | 64.36 |
| Undifferentiated | 0 | 0 |
| Others | 49 | 8.08 |
| Past abdominal surgery | ||
| Yes | 47 | 7.76 |
| No | 559 | 92.24 |
| Type of resection | ||
| Proximal gastrectomy | 15 | 2.47 |
| Total gastrectomy | 169 | 27.89 |
| Distal gastrectomy | 403 | 66.5 |
| Remnant gastrectomy | 19 | 3.14 |
| Extent of lymph node dissection | ||
| D1 | 2 | 0.33 |
| D1+ | 2 | 0.33 |
| D2 | 532 | 87.79 |
| D2+ | 39 | 6.43 |
| Palliative | 31 | 5.12 |
| Reconstruction | ||
| Esophagogastrostomy | 15 | 2.47 |
| Billroth I | 5 | 0.82 |
| Billroth II | 382 | 63.04 |
| Billroth II+Braun | 11 | 1.82 |
| Roux-en-Y | 193 | 31.85 |
| Estimated blood loss (ml) | 190.49±164.11 | |
| Operating time (min) | 279.02±69.23 | |
| Number of retrieved lymph nodes | 33.09±12.18 | |
| Conversion to open laparotomy | 41 | 6.76 |
| Resection margin | ||
| Proximal | 4.78±1.32 | |
| Distal | 6.44±3.58 | |
| Mobidity | 67 | 11.06 |
| Postoperative pneumonia | 27 | 4.45 |
| Liquefaction of incision fat | 2 | 0.33 |
| Anastomosis leakage | 5 | 0.82 |
| Intro-abdominal infection | 8 | 1.32 |
| Duodenal stump leakage | 5 | 0.83 |
| Esophagus-jejunum anastomosis site stenosis | 2 | 0.33 |
| Septic shock | 2 | 0.33 |
| Incision infection | 4 | 0.66 |
| Intraperitoneal hemorrhage | 6 | 0.99 |
| Anastomotic stenosis | 4 | 0.66 |
| Intra-abdominal abscess | 2 | 0.33 |
| Anastomotic bleeding | 2 | 0.33 |
| Mortality | 4 | 0.66 |