Table 4.
Comparison of postoperative complications, operation time and bleeding during operation in patients who underwent lobectomy or partial resection of the lung between AFL(+) and AFL(–) groups
| Total (n = 2912) n (%) | AFL (+) (n = 623) n (%) | AFL (–) (n = 2289) n (%) | Odds ratio 95%CI | P value* | |
|---|---|---|---|---|---|
| Respiratory failure including LTOT | 48 (1.6) | 26 (4.2) | 22 (1.0) | 4.48(2.42–8.37) | <0.0001 |
| Atelectasis | 99 (3.4) | 45 (7.2) | 54 (2.4) | 3.22 (2.10–4.93) | <0.0001 |
| Re-operation | 42 (1.4) | 20 (3.2) | 22 (1.0) | 3.42 (1.76–6.61) | 0.0002 |
| Arrhythmias | 220 (7.6) | 78 (12.5) | 142 (6.2) | 2.16 (1.59–2.92) | <0.0001 |
| Refractory air-leakage | 224 (7.7) | 79 (12.7) | 145 (6.3) | 2.15 (1.58–2.89) | <0.0001 |
| Chylothorax | 59 (2.0) | 15 (2.4) | 44 (1.9) | 1.26 (0.65–2.32) | 0.4254 |
| Bronchial stump fistula | 8 (0.3) | 3 (0.5) | 5 (0.2) | 2.21 (0.34–11.4) | 0.3797 |
| Acute exacerbation of IP | 7 (0.2) | 1 (0.2) | 6 (0.3) | 0.61 (0.01–5.06) | 1.0000 |
| Wound infection and/or pyrothorax | 17 (0.6) | 6 (1.0) | 11 (0.5) | 2.01 (0.61–5.97) | 0.2290 |
| Pneumonia | 24 (0.8) | 7 (1.1) | 17 (0.7) | 1.52 (0.53–3.87) | 0.3250 |
| Operation time (min) | 160.8 ± 86.3 | 179.9 ± 93.0 | 155.6 ± 83.6 | 24.4¶ (16.2–32.5) | <0.0001 |
| Bleeding (ml) | 131.4 ± 317.3 | 165.4 ± 354.5 | 122.1 ± 305.7 | 43.3¶ (12.3–74.2) | 0.0062 |
Data of operation time (min) and bleeding (ml) during operation are presented as mean ± SD. *Fisher’s exact test was utilized to test a statistical significance between AFL(+) and AFL(–) groups. Unpaired t-test was utilized for operation time or bleeding during operation to test the difference between AFL(+) and AFL(–) groups. ¶The values indicate the difference (time or ml) between AFL(+) and AFL(–) groups. AFL: airflow limitation; 95% CI: 95% confidence interval; LTOT: long-term oxygen therapy; IP: interstitial pneumonia; SD: standard deviation