Table 1:
Perioperative characteristics including pulmonary function
| Preoperative | Postoperative |
|||
|---|---|---|---|---|
| 6 months | 12 months | 24 months | ||
| Spirometry | ||||
| FVC (ml) | 2790 | 3700 | 4090 | 4210 |
| FVC (%) | 72 | 95 | 106 | 110 |
| FEV1 (ml) | 590 | 2090 | 2110 | 2160 |
| FEV1% (%) | 21 | 57 | 52 | 51 |
| TLC (ml) | 5900 | 5500 | 4820 | 5000 |
| TLC (%) | 99 | 91 | 70 | 73 |
| DLCO (ml/min/mmHg) | 2.48 | 3.97 | 4.56 | 4.38 |
| DLCO/VA (ml/min/mmHg/L) | 48.3 | 77.3 | 89.2 | 86.0 |
| Arterial blood gas (room air) | ||||
| PaO2 (mmHg) | 60.1 | 86.9 | 86.0 | 83.5 |
| PaCO2 (mmHg) | 57.0 | 36.4 | 36.8 | 35.1 |
| Six-minute walk (m) | 75 | 603 | 640 | 695 |
| 3D-CT volumetry | ||||
| Inspiratory (expiratory) | ||||
| Right lung | ||||
| Upper lobe (ml) | 1517 (1275) | 1536 (1193) | 1508 (1180) | 1492 (1120) |
| Lower lobe (ml) | 2444 (2029)a | 2120 (1106) | 2169 (1139) | 2189 (998) |
| Left lung | ||||
| Upper segment (ml) | 1049 (906) | 1059 (922) | 980 (882) | 989 (839) |
| Lower lobe (ml) | 2381 (1965)b | 1898 (791) | 2017 (822) | 2015 (669) |
| Ventilation scintigraphy (%) | ||||
| Right (U/M/L) | 13/22/19 | 13/24/19 | 15/25/18 | 12/24/22 |
| Left (U/M/L) | 8/20/18 | 8/18/18 | 8/17/17 | 7/16/19 |
| Perfusion scintigraphy (%) | ||||
| Right (U/M/L) | 14/20/16 | 12/26/21 | 14/26/20 | 11/25/25 |
| Left (U/M/L) | 10/21/19 | 6/17/18 | 6/15/19 | 5/14/20 |
DLCO: diffusion capacity for carbon monoxide; DLCO/VA: diffusion capacity for carbon monoxide/alveolar volume; FEV1: forced expiratory volume in 1 s; FVC: forced vital capacity; TLC: total lung capacity; U/M/L: upper area/middle area/lower area.
aIncluding middle lobe.
bIncluding lingular segment.