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| The time of examination | Vital capacity (L/%) | Forced expiratory volume in 1 second (L/%) | Forced expiratory volume in 1 second/forced vital capacity ratio (%) | Diffusing capacity of the lungs for carbon monoxide (%) |
|---|---|---|---|---|
| Before surgery | 3.91/80 | 2.32/60 | 63 | 70 |
| After endobronchial valve installation | 4.03/82 | 3.37/72 | 65 | — |
| After RATS right upper lobectomy | 3.86/75 | 2.14/52 | 57 | 65 |
RATS, robot-assisted thoracoscopic surgery.
