TUBERCULOUS PLEURAL EFFUSION - EXPERIENCE WITH 6 MONTHS OF TREATMENT WITH ISONIAZID AND RIFAMPICIN

Background - Tuberculous pleurisy is associated with small numbers of bacteria. Due to the low rate of primary resistance to antituberculous drugs a two-drug regimen was used to treat the condition. Methods - P atients received isoniazid 5 mg/kg and rifampicin 10 mg/kg daily for s ix months. Clinical, radiological, and haematological assessments were performed during treatment and patients were followed up for a median period of 41 (range 6-96) months. Results - One hundred and thirty pa tients were studied with a mean age of 27 (range 11-53) years. Seven w ere withdrawn due to parenchymal disease and eight were lost to follow up during the treatment period. Side effects during treatment were fr equent (20.7%), but only three patients required a change in medicatio n. No treatment failures were observed. One hundred and fifteen patien ts completed therapy and were followed up for 41 (range 6-96) months w ith no evidence of a relapse. Conclusions - Tuberculous pleurisy respo nds well to a two-drug regimen of antituberculous therapy given for si x months.