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Etiology of constrictive pericardial heart disease in the USA treated by pericardiectomy
| Type of pericardial heart disease | Totals* |
| Idiopathic | 213 (68%) |
| Tuberculous | 63 (20%) |
| Traumatic | 6 (2%) |
| Rheumatic | 2 (1%) |
| Neoplastic | 3 (1%) |
| Pyogenic | 4 (1%) |
| Irradiation | 4 (1%) |
| Postcardiotomy | 2 (1%) |
| Rheumatoid arthritis | 2 (1%) |
| Viral | 1 (0%) |
| Acute nonspecific | 14 (4%) |
| Total | 314 (100%) |
Includes patients seen from 1930 to 1969 and included in 6 different studies.
