Table 2.
Incidence of Postoperative Pulmonary Complications (PPCs) by DLco Status
| PPC | Type of the PPC | Mortality | ||||||
|---|---|---|---|---|---|---|---|---|
| ARDS/Pneumonia | Respiratory failure | Air leakage | BPF/empyema | Atelectasis | 30-day | 90-day | ||
| Overall | 79 (24.6) | 49 (15.3) | 23 (7.2) | 19 (5.9) | 14 (4.4) | 10 (3.1) | 2 (0.6) | 26 (8.1) |
| DLco at diagnosis | ||||||||
| Normal (N = 165) | 24 (14.5) | 14 (8.5) | 4 (2.4) | 5 (3.0) | 4 (2.4) | 4 (2.4) | 0 (0) | 5 (3.0) |
| Low (N = 156) | 55 (35.3) | 35 (22.4) | 19 (12.2) | 14 (9.0) | 10 (6.4) | 6 (3.9) | 2 (1.3) | 21 (13.5) |
| P value | <.001 | .001 | <.001 | .024 | .081 | .533a | .234a | .001 |
| Change before and after CCRT | ||||||||
| NN: Normal → Normal (N = 76) | 7 (9.2) | 3 (4.0) | 0 (0) | 1 (1.3) | 2 (2.6) | 1 (1.3) | 0 (0) | 1 (1.3) |
| NL: Normal → Low (N = 89) | 17 (19.1) | 11 (12.4) | 4 (4.5) | 4 (4.5) | 2 (2.3) | 3 (3.4) | 0 (0) | 4 (4.5) |
| LL: Low → Low (N = 75) | 23 (31.7) | 14 (18.7) | 7 (9.3) | 7 (9.3) | 5 (6.7) | 2 (2.7) | 1 (1.3) | 10 (13.3) |
| LVL: Low → Very Low (N = 81) | 32 (39.5) | 21 (25.9) | 12 (14.8) | 7 (8.6) | 5 (6.2) | 4 (4.9) | 1 (1.2) | 11 (13.6) |
| P for trends | <.001 | <.001 | <.001 | .030 | .148 | .255 | .260 | .002 |
ARDS acute respiratory distress syndrome; BPF bronchopleural fistula; DLco diffusing capacity of the lung for carbon monoxide; PPC postoperative pulmonary complication;
a Fisher’s exact test