Table 3. Comparison of parenchyma-preserving pancreatectomy and standard surgery for small nonfunctional pancreatic neuroendocrine tumors.
| Factors | Parenchyma-preserving pancreatectomy (n=9) | Standard surgery (n=19) | P value |
|---|---|---|---|
| Operation time, min, mean (SD) | 288.3 (169.4) | 368.0 (128.6) | 0.179 |
| Surgery approach | 0.195 | ||
| Open | 8 (88.9) | 11 (57.9) | |
| Minimal invasive | 1 (11.1) | 8 (42.1) | |
| Blood loss, mL, median (range) | 147.2 (25.0–250.0) | 186.6 (50.0–300.0) | 0.315 |
| Length of stay, days, median [range] | 17 [6–71] | 20 [6–71] | 0.844 |
| Surgical margin | 0.321 | ||
| R0 | 8 (88.9) | 19 (100.0) | |
| R1 | 1 (11.1) | 0 (0.0) | |
| Complications, n (%) | 0.677 | ||
| No | 4 (44.4) | 6 (31.6) | |
| Yes | 5 (55.6) | 13 (68.4) | |
| Severity (Clavien-Dindo grade) | 1.000 | ||
| CD ≤2 | 9 (100.0) | 17 (89.5) | |
| CD ≥3 | 0 (0.0) | 2 (10.5) | |
| POPF | 5 (55.6) | 9 (47.4) | 1.000 |
| POPF grade B/C | 5 (55.6) | 4 (21.1) | 0.097 |
| Endocrine insufficiency | 0 (0.0) | 5 (26.3) | 0.144 |
| Exocrine insufficiency | 2 (22.2) | 4 (21.1) | 1.000 |
| Recurrence | 0 (0.0) | 2 (10.5) | 1.000 |
| Disease-related death | 0 (0.0) | 0 (0.0) | 1.000 |
Numbers in brackets represent percentage frequency if not otherwise specified. SD, standard deviation; POPF, postoperative pancreatic fistula.