| Cases of thoracic surgeries per year | |
| > 1000 | 50.0% |
| ≤ 1000 | 50.0% |
| Lung isolation techniques for OLV | |
| Double-lumen endotracheal tube | 93.8% |
| Bronchial blockers | 6.3% |
| Laryngeal mask | 0 |
| Non-intubation | 0 |
| Postoperative analgesic management for OLV | |
| Intravenous patient-controlled analgesia | 50.0% |
| Intercostal block | 25.0% |
| Epidural analgesia | 18.8% |
| Intravenous nonsteroidal antiinflammatory drug | 6.3% |
| Paravertebral block | 0 |
| Perioperative monitoring systems during OLV | |
| Arterial catheter | 100% |
| Bispectral index | 87.5% |
| Central venous catheter | 43.8% |
| Non-calibrated cardiac output monitor | 12.5% |
| Pulmonary artery catheter | 0 |