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Preoperative clinical symptoms and signs
| Symptom/sign | n (%) |
|---|---|
| Dyspnea | 36 (38.7) |
| Chest pain | 20 (21.5) |
| Palpitation | 8 (8.6) |
| Stroke | 10 (10.8) |
| Syncope | 5 (5.4) |
| Fever | 1 (1.1) |
| Cough | 1 (1.1) |
| Headache | 1 (1.1) |
| Weight loss | 1 (1.1) |
| Nausea | 1 (1.1) |
| Asymptomatic | 18 (19.4) |
