Abstract
A retrospective studies, as to pathological findings during the last forty years were performed. The following results were obtained.
1) The average age of death was 61 years and the duration of illness was about 9 years in the last ten years.
2) In 71.7% of patients, death was related to tuberculous, such as chronic cardiopulmonary failure (56.6%), hemoptysis (8.5%), aggravation (6, 6%). In the remaing 28.3%, death was caused by mainly non-tuberculous diseases, such as cancer, apoplexy, cardiac disease.
3) The main pathological changes in the lung were characterized by the sclerotic type and cavitary type.
4) The average weight of the heart was remarkably decreasing (cor pulmonale).
5) Based on the above findings, we concluded that the clinical courses and the direct causes of death have been markedly changing in accordance with the use of antituberculous drugs, in contrast to that of the old tuberculosis.