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Presenting symptoms of patients
| Symptoms | Recurrent (n = 28) | Primary (n = 65) |
|---|---|---|
| Decreased endurance or dyspnoea on exertion | 17 (60.7%) | 29 (44.6%) |
| Chest pain | 8 (28.6%) | 15 (23.1%) |
| Palpitations | 6 (21.4%) | 13 (20%) |
| Frequent upper respiratory infections | 8 (28.6%) | 18 (27.7%) |
| Cardiac compression or displacement by CT | 25 (89.3%) | 49 (75.4%) |
| ECG anomalies | 10 (35.7%) | 24 (36.9%) |
| Abnormal pulmonary function | 20 (71.4%) | 19 (29.2%) |
The primary data were the control group.
