Table 1.
Clinicopathologic description of all remnant gastric cancer patients.
| Variable | No. of Patients | % |
|---|---|---|
| Age (years) (Mean ± SD) | 63.8 ± 9.6 | |
| >65 | 147 | 58.1 |
| ≤65 | 106 | 41.9 |
| Sex | ||
| Male | 223 | 88.1 |
| Female | 30 | 11.9 |
| Family history | ||
| No | 238 | 94.1 |
| Yes | 15 | 5.9 |
| Interval (year) | ||
| ≤5 | 53 | 20.9 |
| 5-10 | 28 | 11.1 |
| >10 | 172 | 68.0 |
| Previous disease | ||
| Benign | 165 | 65.2 |
| Malignant | 88 | 34.8 |
| Previous operation type | ||
| Distal gastrectomy | 244 | 96.4 |
| Proximal gastrectomy | 9 | 3.6 |
| Reconstruction | ||
| Billroth I | 71 | 28.1 |
| Billroth II | 168 | 66.4 |
| Roux-en-Y | 5 | 2.0 |
| Esophageal gastric remnant anastomosis | 9 | 3.6 |
| Comorbidity | ||
| No | 155 | 61.3 |
| Yes | 98 | 38.7 |
| ASA score | ||
| I-II | 215 | 85.0 |
| III-IV | 38 | 15.0 |
| Tumor location | ||
| Anastomosis | 144 | 56.9 |
| Nonanastomotic site | 109 | 43.1 |
| Approach | ||
| Open | 174 | 68.8 |
| Laparoscopic | 79 | 31.2 |
| Combined resection | ||
| No | 207 | 81.8 |
| Yes | 46 | 18.2 |
| Lymphvascular invasion | ||
| No | 159 | 62.8 |
| Yes | 94 | 37.2 |
| Histology | ||
| Differentiated | 110 | 43.5 |
| Undifferentiated | 143 | 56.5 |
| Macroscopic type | ||
| EGC | 34 | 13.4 |
| AGC, Borrmann 1-3 | 193 | 76.3 |
| AGC, Borrmann 4 | 26 | 10.3 |
| Size (cm) (Mean ± SD) | 4.5 ± 2.1 | |
| ≤2 | 44 | 17.4 |
| 2-5 | 128 | 50.6 |
| >5 | 81 | 32.0 |
| pT-stage | ||
| T1 | 34 | 13.4 |
| T2 | 30 | 11.9 |
| T3 | 55 | 21.7 |
| T4a | 91 | 36.0 |
| T4b | 43 | 17.0 |
| pN-stage | ||
| N0 | 110 | 43.5 |
| N1 | 45 | 17.8 |
| N2 | 49 | 19.4 |
| N3a | 41 | 16.2 |
| N3b | 8 | 3.2 |
| Positive LN count (Mean ± SD) | 3.4 ± 5.3 | |
| Retrieved LN count (Mean ± SD) | 16.1 ± 9.6 | |
| ≤ 15 | 137 | 54.2 |
| >15 | 116 | 45.8 |
| LNR | ||
| 0 | 110 | 43.5 |
| >0,0.3 | 69 | 27.3 |
| >0.3,0.6 | 42 | 16.6 |
| >0.6 | 32 | 12.6 |
| AJCC7th staging | ||
| Ia | 31 | 12.3 |
| Ib | 20 | 7.9 |
| IIa | 23 | 9.1 |
| IIb | 48 | 19.0 |
| IIIa | 35 | 13.8 |
| IIIb | 53 | 20.9 |
| IIIc | 43 | 17.0 |
| AJCC8th staging | ||
| Ia | 31 | 12.3 |
| Ib | 20 | 7.9 |
| IIa | 23 | 9.1 |
| IIb | 48 | 19.0 |
| IIIa | 68 | 26.9 |
| IIIb | 44 | 17.4 |
| IIIc | 19 | 7.5 |
| Complication | ||
| No | 148 | 58.5 |
| Yes | 105 | 41.5 |
| Adjuvant Chemotherapy | ||
| No | 108 | 42.7 |
| Yes | 145 | 57.3 |
| Radiotherapy | ||
| No | 250 | 98.8 |
| Yes | 3 | 1.2 |
Abbreviations. SD: standard deviation; ASA: American Society of Anesthesiologists; LN: lymph node; EGC: early gastric cancer; AGC: advanced gastric cancer; Family history: family history of gastric cancer; Interval: interval between gastrectomy and remnant gastric cancer.