Table 3. Past studies for robotic hepatectomy.
| Study | n* | Operating time, mean± SD or median [range], min |
Conversion (%) | Positive surgical margin (%) | Blood loss, mean ± SD or median [range], mL | Length of stay, mean ± SD or median [range], days |
Complication (%) | Mortality |
|---|---|---|---|---|---|---|---|---|
| Resections of >4 segments | ||||||||
| Nota et al. 2016* (12) | 99 | 405±100 | 8 | 0 | 380±505 | 11±6 | 26 | 0 |
| Chen et al. 2016 (23) | 34 | 343 [140–715] | 0 | 0 | 182 | 8.9 | 6 | 0 |
| Lai et al. 2016 (24) | 100 | 207±77 | 4 | 4 | 335 [5-3,500] | 7.3±5.3 | 14 | 0 |
| Quijano et al. 2016 (25) | 20 | 282 | 5 | 0 | n/a | 13.4 | 20 | 0 |
| Minor resections (2, 3, 4B, 5, 6) | ||||||||
| Nota et al. 2016* (12) | 81 | 215±65 | 1 | 2 | 230±310 | 5±2 | 19 | 0 |
| Kim et al. 2016 (26) | 12 | 404±139 | n/a | 0 | 225 [125–275] | 7 [7–8] | 25 | 0 |
| Salloum et al. 2016 (27) | 16 | 190±7 | 13 | 0 | 247±239 | 6±4 | 13 | 0 |
| Lee et al. 2016 (28) | 70 | 252 [97–620] | 6 | 2 | 100 [2–2,500] | 5 [2–22] | 11 | 0 |
| Present series | 50 | 166±59 | 0 | 0 | 96±140 | 2.9±2.0, 3 [1–9] | 12 | 0 |
| Minor resections (1, 4A, 7, 8) | ||||||||
| Nota et al. 2016* (12) | 17 | 220±60 | 0 | 2 | 170±120 | 5±1 | 24 | 0 |
| Montalti et al. 2016 (29) | 36 | 306±182 | 14 | 11 | 415±414 | 6±2.9 | 19 | 1 (2.8%) |
| Boggi et al. 2015 (30) | 12 | 260 [115–430] | 8 | 0 | 253 (50–600) | 8.5 [7–96] | 33 | 0 |
| Present series | 29 | 191±75 | 18 | 0 | 125±159 | 3.2±1.5, 3 [1-6] | 7 | 0 |
*, collected series. n/a, not applicable.