Table 2. Operative details.
| Variables | Unmatched groups | Matched groups | |||||
|---|---|---|---|---|---|---|---|
| T-RAMIE (N=144) | H-RAMIE (N=70) | P value | T-RAMIE (N=49) | H-RAMIE (N=49) | P value | ||
| Thorax operation type | 0.553 | NA | |||||
| Robot | 141 (97.9) | 70 (100.0) | 49 (100.0) | 49 (100.0) | |||
| Open | 3 (2.1) | 0 | 0 | 0 | |||
| Anastomosis level | 0.987 | 0.467 | |||||
| Cervical | 113 (78.5) | 55 (78.6) | 36 (73.5) | 39 (79.6) | |||
| Thoracic | 31 (21.5) | 15 (21.4) | 13 (26.5) | 10 (20.4) | |||
| Anastomosis method | 0.137 | 0.215 | |||||
| EEA | 4 (2.8) | 2 (2.9) | 2 (4.1) | 1 (2.0) | |||
| Hand/robot sewing | 28 (19.4) | 9 (12.8) | 9 (18.4) | 5 (10.2) | |||
| Modified Orringer | 34 (23.6) | 29 (41.4) | 13 (26.5) | 22 (44.9) | |||
| Tri-staple method | 78 (54.2) | 30 (42.9) | 25 (51.0) | 21 (42.9) | |||
| Route of reconstruction | 0.106 | NA | |||||
| Posterior mediastinum | 144 (100.0) | 68 (97.1) | 49 (100.0) | 49 (100.0) | |||
| Substernal | 0 | 2 (2.9) | 0 | 0 | |||
| Cervical LN dissection | 54 (37.5) | 19 (27.1) | 0.134 | 15 (30.6) | 13 (26.5) | 0.617 | |
T-RAMIE, totally robot-assisted minimally invasive esophagectomy; H-RAMIE, hybrid robot-assisted minimally invasive esophagectomy; LN, lymph node; NA, not applicable.