Moderate-large pericardial effusion trials
| Corey4 | Colombo3 | SagristĂ 5 | |
| Effusion | > 5 mm | > 10 mm | > 10 mm |
| n | 57 | 25 | 322 |
| Tamponade | Not reported | 44% | 37% |
| Idiopathic | 7% | 32% | 20%1-150 |
| Chronic idiopathic effusion | ? | ? | 9% |
| Neoplastic | 23% | 36% | 13% |
| Uraemia | 12% | 20% | 6% |
| Iatrogenic | 0% | 0% | 16% |
| Post-acute myocardial infarction | 0% | 8% | 8% |
| Viral | 14% | 0% | 0% |
| Collagen vascular disease | 12% | 0% | 5% |
| Tuberculosis | 0% | 0% | 2% |
| Other | 9% | 4% | 21% |
↵1-150 Acute idiopathic pericarditis; ? no distinction between acute idiopathic pericarditis and idiopathic chronic pericardial effusion.