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Clin Infect Dis. 2011 Mar 1;52(5):565-71. doi: 10.1093/cid/ciq237.

Clinical and microbiologic outcomes in patients receiving treatment for Mycobacterium abscessus pulmonary disease.

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  • 1Division of Respiratory Medicine, University of Calgary, Calgary, Alberta, Canada. julie.jarand@albertahealthservices.ca

Abstract

BACKGROUND:

Mycobacterium abscessus can produce a chronic pulmonary infection for which little is known regarding optimal treatment and long-term outcomes.

METHODS:

We performed a retrospective observational study (2001-2008) including all patients who met American Thoracic Society criteria for M. abscessus pulmonary disease. Our aim was the evaluation of clinical and microbiologic outcomes in patients treated with combined antibiotic and surgical therapy, compared with antibiotic therapy alone.

RESULTS:

A total of 107 patients were included in the analysis. Patients were predominantly female (83%) and never-smokers (60%), with a mean age of 60 years. Fifty-nine (55%) of 107 patients had coexistent or previous history of Mycobacterium avium complex pulmonary infection. High-resolution chest CT showed bronchiectasis and nodular opacities in 98% of patients and cavities in 44%. Sixty-nine (46 medical, 23 surgical) patients were followed up for a mean duration of 34 months (standard deviation, 21.1 months, range, 2-82 months). Cough, sputum production, and fatigue remained stable, improved, or resolved in 80%, 69%, and 59% of patients, respectively. Twenty (29%) of 69 patients remained culture positive, 16 (23%) converted but experienced relapse, 33 (48%) converted to negative and did not experience relapse, and 17 (16%) died during the study period. There were significantly more surgical patients than medical patients whose culture converted and remained negative for at least 1 year (57% vs 28%; P = .022).

CONCLUSIONS:

Patients with M. abscessus pulmonary disease who are treated with multidrug antibiotic therapy and surgery or antibiotic therapy alone had similar clinical outcomes. However, surgical resection, in addition to antibiotics, may offer a prolonged microbiologic response.

PMID:
21292659
[PubMed - indexed for MEDLINE]
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