Table 2.
Amount of adequate steps
| Study cases (n = 158) | Historic control (n = 343) adequate | ||||
|---|---|---|---|---|---|
| Video recording | Video recording and operative note combined | ||||
| Adequate | p value | Adequate | p value | ||
| Step 1 Introduction of trocars under vision | 12 (80.0) | .004 | 14 (93.3) | <.001 | 10 (31.3) |
| Step 2 Exploration | 35 (77.8) | .014 | 40 (88.9) | <.001 | 57 (60.6) |
| Inspection of the liver | 14 (93.3) | <.001 | 14 (93.3) | <.001 | 10 (31.3) |
| Inspection of the tumor | 8 (53.3) | .599 | 12 (80.0) | .182 | 17 (53.1) |
| Inspection of the peritoneum | 13 (86.7) | .583 | 14 (93.3) | 1.000 | 30 (93.8) |
| Step 3 Vascular control | 8 (40.0) | .006 | 13 (65.0) | .371 | 32 (72.7) |
| Step 4 Mobilization and resection | 24 (72.7) | <.001 | 24 (72.7) | <.001 | 26 (35.6) |
| Exploration of resection specimen | 9 (60.0) | <.001 | 9 (60.0) | <.001 | 1 (3.1) |
| Identification of left ureter | 11 (100) | .534 | 11 (100) | .534 | 18 (85.7) |
| Step 5 Creation of anastomosis | 16 (53.3) | .376 | 23 (76.7) | .354 | 41 (60.3) |
| Anastomosis | 10 (66.7) | .481 | 14 (93.3) | .406 | 25 (78.1) |
| Step 6 Closure | 10 (66.7) | .753 | 12 (80.0) | .202 | 19 (59.4) |
| Total adequate steps | 105 (66.5) | .024 | 126 (79.7) | <.001 | 185 (53.9) |
Data are presented as N (%). p value obtained from comparison with historic control group