Table 2.
Operative outcomes and surgical complications of gastric GIST patients treated by laparoscopic versus open resection.
| Variable | Before PSM | P value | After PSM | P value | ||
|---|---|---|---|---|---|---|
| Laparoscopic group (N = 373) |
Open group (N = 542) |
Laparoscopic group (N = 318) |
Open group (N = 318) |
|||
| Operation time (minute) | ||||||
| Overall | 113.9 ± 58.6 | 125.5 ± 71.3 | 0.011 | 114.0 ± 57.0 | 100.8 ± 54.5 | 0.003 |
| Wedge resection or enucleation | 112.0 ± 58.6 | 103.4 ± 59.7 | 0.052 | 111.7 ± 56.9 | 97.4 ± 53.7 | 0.002 |
| Gastrectomy | 143.7 ± 51.1 | 175.4 ± 70.2 | 0.014 | 143.1 ± 50.3 | 143.6 ± 46.3 | 0.973 |
| Conversion to open surgery | 14 (3.8) | – | – | 11 (3.5) | – | – |
| Tumor rupture during surgery | 0 (0) | 13 (2.4) | 0.001 | 0 (0) | 6 (1.9) | 0.031 |
| Hospital days (mean ± SD) | ||||||
| Overall | 6.7 ± 4.9 | 10.1 ± 7.7 | < 0.001 | 6.7 ± 5.0 | 8.8 ± 6.5 | < 0.001 |
| Wedge resection or enucleation | 6.5 ± 4.8 | 9.2 ± 7.8 | < 0.001 | 6.4 ± 4.9 | 8.7 ± 6.7 | < 0.001 |
| Gastrectomy | 9.8 ± 5.6 | 12.0 ± 7.2 | 0.094 | 8.8 ± 2.6 | 9.4 ± 2.3 | 0.389 |
| Postoperative complications | ||||||
| Total number of cases with complication | 15 (4.0) | 45 (8.3) | 0.010 | 11 (3.5) | 25 (7.9) | 0.024 |
| Wound | 4 (1.1) | 13 (2.4) | 0.212 | 2 (0.6) | 10 (3.1) | 0.037 |
| Fluid collection | 1 (0.3) | 6 (1.1) | 0.251 | 1 (0.3) | 1 (0.3) | 1.000 |
| Intraabdominal bleeding | 3 (0.8) | 6 (1.1) | 0.746 | 3 (0.9) | 3 (0.9) | 1.000 |
| Luminal bleeding | 3 (0.8) | 2 (0.4) | 0.403 | 2 (0.6) | 1 (0.3) | 0.563 |
| Stenosis | 2 (0.5) | 4 (0.7) | 0.718 | 2 (0.7) | 1 (0.3) | 0.563 |
| Intestinal motility disorder | 0 (0) | 6 (1.1) | 0.087 | 0 (0) | 5 (1.6) | 0.062 |
| Leakage | 1 (0.3) | 2 (0.4) | 0.799 | 0 (0) | 1 (0.3) | 0.317 |
| Fistula | 0 (0) | 2 (0.4) | 0.517 | 0 (0) | 1 (0.3) | 0.317 |
| Pulmonary complications | 0 (0) | 5 (0.9) | 0.085 | 0 (0) | 4 (1.3) | 0.124 |
| Urinary complications | 1 (0.3) | 2 (0.4) | 0.793 | 1 (0.3) | 1 (0.3) | 1.000 |
| Hepatic complications | 0 (0) | 2 (0.4) | 0.517 | 0 (0) | 0 (0) | – |
| Clavien–Dindo classification | ||||||
| Grade I | 3 (0.3) | 6 (1.1) | 0.745 | 2 (0.6) | 4 (1.3) | 0.686 |
| Grade II | 4 (1.1) | 14 (2.6) | 0.146 | 3 (0.9) | 6 (1.9) | 0.505 |
| Grade IIIa | 8 (2.1) | 17 (3.1) | 0.415 | 6 (1.9) | 8 (2.5) | 0.788 |
| Grade IIIb | 0 (0) | 10 (1.8) | 0.007 | 0 (0) | 8 (2.5) | 0.007 |
| Grade IVa | 0 (0) | 1 (0.2) | 0.407 | 0 (0) | 0 (0) | – |
| Grade IVb | 0 (0) | 0 (0) | – | 0 (0) | 0 (0) | – |
| Grade V | 0 (0) | 2 (0.4) | 0.517 | 0 (0) | 2 (0.6) | 0.499 |
| Complication requiring major intervention (≥ grade IIIa) | 8 (2.1) | 30 (5.5) | 0.011 | 6 (1.9) | 18 (5.7) | 0.020 |
| Mortality within 30 days | 0 (0) | 2 (0.4) | 0.517 | 0 (0) | 2 (0.6) | 0.499 |
PSM propensity score matching, SD standard deviation.