Clinical characteristics and symptoms at the time of initial diagnosis
| Pulmonary infarction (PI)(n = 21) | Prominent dyspnoea (PD)(n = 29) | Circulatory failure (CF)(n = 32) | Total(n = 82) | |
|---|---|---|---|---|
| Mean (SE) age (years) | 54 (4) | 65 (2) | 63 (2) | 61 (2) |
| M/F | 12/9 | 13/16 | 15/17 | 40/42 |
| Coexisting cardiopulmonary disease | 6 (28.5%) | 10 (34.4%) | 10 (31.2%) | 26 (31.7%) |
| Dyspnoea | 18 (85.7%) | 29 (100%) | 30 (93.7%) | 77 (93.9%) |
| Cyanosis | 1 (4.8%) | 8 (27.5%) | 3 (9.4%) | 12 (14.6%) |
| Chest pain | 21 (100%) | 0 (0%) | 17 (53.1%) | 38 (46.3%) |
| Haemoptysis | 3 (14.3%) | 0 (0%) | 0 (0%) | 3 (3.6%) |
| Lipothymia | 0 (0%) | 0 (0%) | 15 (46.9%) | 15 (18.3%) |
| Syncope | 0 (0%) | 0 (0%) | 6 (18.7%) | 6 (7.3%) |
| Circulatory shock | 0 (0%) | 0 (0%) | 11 (34.4%) | 11 (13.4%) |