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The investigation was made on patients with pulmonary tuberculosis with cavitation who were admitted to the Masan Railroad Hospital between July 1956 and June the effects of varying factors on cavity closure are briefly summarised as follows: 1. The cavity closure rate was 72% in the cases receiving initial treatment and 25% n the cases who were being retreated. The total cavity closure rate was 43%. 2. The cavity closure rate was highest between 3 to 6 months after the initiation of treatment; 82% of cases showed cavity closure within 9 months of the beginning of treatment. 3. The sputum conversion rate was high within 3 months of the initiation of treatment, and 92% of the cases showing cavity closure underwent sputum conversion from positive to negative within the first 9 months. 4. The cavity closure rate in the retreatment cases was markedly influenced by the length of previous chemotherapy and was inversely proportionate. 5. The cavity closure rate was 82% in cases treated initially and 31% in the retreatment cases. The total cavity closure rate was 51% this was more dependent on the size of cavity than on the thickness of the cavity wall. 6. the cavity closure rate in the cases of giant cavity(measuring more than 5cm) was 14%. |
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