Table 1.
Demographic and clinico-pathological characteristics of included patients and pathological tumor characteristics
| Patients and tumor characteristics | |
|---|---|
| Variable | Adenocarcinomas (n = 15) |
| Sexa | |
| Female | 3 (20%) |
| Male | 12 (80%) |
| Age at operationb | 73 (65–78) |
| Clavien-Dindo ≥ IIIba | 5 (33%) |
| Post-operative mortalitya | 3 (20%) |
| DA on adenomaa | 3 (20%) |
| Portion of duodenum involveda | |
| I | 1 (7%) |
| II | 13 (86%) |
| III | 1 (7%) |
| IV | 0 (0%) |
| TNM staging 7th edition | |
| Ta | |
| 1–2 | 2 (13%) |
| 3–4 | 13 (87%) |
| Na | |
| 0 | 7 (47%) |
| 1 | 2 (13%) |
| 2 | 6 (40%) |
| Stage grouping 7th editiona | |
| I | 2 (13%) |
| II | 5 (34%) |
| III | 8 (53%) |
| Histological grade (G)a | |
| 1–2 | 7 (46%) |
| 3–4 | 8 (54%) |
| Resection status (R)a | |
| 0, n (%) | 14 (93%) |
| 1, n (%) | 1 (7%) |
| 2, n (%) | 0 (0%) |
| n° of retrieved lymph nodesb | 23 (14–28) |
| n° of positive lymph nodesb | 2 (0–3) |
| Lymph node ratiob | 0.689 (0–0.115) |
| Perineural invasiona | 5 (33%) |
| Lymphovascular invasiona | 5 (33%) |
| Adjuvant chemotherapya | 6 (40%) |
| Adjuvant radiotherapya | 0 (0%) |
| Disease recurrencea | 3 (20%) |
| Disease related deatha | 3 (20%) |
Only adenocarcinoma patients have been included. a n (%); b median (IQR)