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Non-tuberculous mycobacterial pleurisy: an 8-year single-centre experience in Taiwan
1Department of Traumatology, National Taiwan University Hospital, Taipei, Taiwan.
Objective:
To investigate the clinical characteristics and outcomes of patients with pleurisy due to non-tuberculous mycobacteria (NTM), which are currently unclear.
Design:
From 2000 to 2007, patients with NTM and Mycobacterium tuberculosis isolated from pleural effusion (PE) samples were identified and compared.
Results:
Thirty-five NTM patients and 140 tuberculosis (TB) patients were reviewed. Patients with NTM pleurisy were less likely to have lung involvement and receive anti-mycobacterial treatment compared with those with tuberculous pleurisy. NTM pleurisy had a higher PE leukocyte count and a lower percentage of lymphocytes. M. avium complex (MAC) was the most common pathogen in NTM pleurisy. Patients with MAC pleurisy were younger and tended to have more extra-pleural involvement and immune dysfunction. One-year mortality in the NTM pleurisy group was 37%, and anti-NTM treatment was associated with better survival. Patients with additional diagnostic evidence were more likely to receive anti-NTM treatment.
Conclusion:
NTM pleurisy is common and has a high 1-year mortality rate. Anti-NTM treatment may provide better 1-year survival and should be considered once NTM pleurisy is diagnosed.
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