Perbandingan Angka Positivitas Dan Waktu Deteksi Pertumbuhan Mycobacterium Tuberculosis Antara Media Biakan Cair Kolorometrik dan Media Padat Ogawa Pada Spesimen Sputum,Cairan Pleura, dan Cairan Serebrospinal

Cultivation is the gold standard in diagnosing tuberculosis (TB). M. tuberculosis needs 3-4 weeks to growth in solid media, but it is growing faster in liquid media. The aim of this study was to compare the positivity rate and detection time of M. tuberculosis growth using colorimetric liquid and Ogawa solid media. This study did in Laboratory of Clinical Pathology Hasan Sadikin Hospital during June-Desember 2007. The subject was pulmonary, pleuritis or meningitis TB patients. The statistic analyzed using chi square and independent t test. The specimens were 71 sputums, 24 pleural fluids, 20 cerebrospinal fluids (CSF). The positivity rate of liquid media for sputums were 69%, pleural fluids 41.7%, CSF 60%. The positivity rate of solid media for sputums were 52.1%, pleural fluids 25%, CSF 20%. The positivity rate in liquid media was significant for sputum and CSF (p=0..05). The mean detection time in liquid media for sputums were 15.2 (±8.7) days, pleural fluids 8 (±12.7) days, CSF 13.5 (±19.5) days. The mean detection time in solid media for sputums 23 (±9) days, pleural fluids 36 (±18.3) days, CSF 32 (±11.4) days. The mean detection time in liquid media was significant for sputum and pleural fluid (p=0.05). The positivity rate and detection time of M. tuberculosis growth in colorimetric liquid media are higher and faster than in Ogawa solid media, so it is better for diagnosing TB.

Abstract licence: CC BY-NC

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