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| Preoperative value | Postoperative value | ||
|---|---|---|---|
| Altitude (m) | 26.3 ± 12.7 | 18.2 ± 9.4 | * |
| 6MWD (m) | 496.2 ± 61.5 | 468.9 ± 71.4 |
Altitude: altitude reached in stair-climbing test; 6MWD: 6-min walk distance. Values are means ± SEM. *p<0.05: compared with preoperative value
