Poster Presentations: Wednesday, November 3, 2010 |

The Impact of a New ATS/IDSA Guideline for Nontuberculous Mycobacterial Disease on the Diagnosis of Nontuberculous Mycobacterial Lung Disease in Korea FREE TO VIEW

Dongryeol Chae
Author and Funding Information

St Carollo Hospital, Suncheon, South Korea

Chest. 2010;138(4_MeetingAbstracts):681A. doi:10.1378/chest.10800
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Published online


PURPOSE: To compare the diagnosis rate and time to diagnosis of nontuberculous mycobacterial (NTM) lung disease by 1997 American Thoracic Society (ATS) guideline and by 2007 ATS/Infectious Disease Society of America (IDSA) guideline.

METHODS: The medical records of patients who had excreted NTM at least one time at St Carollo Hospital between January 2005 and December 2008 were reviewed. New 2007 ATS/IDSA guideline was applied to these patients. The difference of the rate of the diagnosis and of the time to diagnosis were compared.

RESULTS: Between 2005-2008, 168 patients were revealed to have positive NTM culture from their respiratory specimen at least one time. 19 of 168 patients(11.3%) were diagnosed with NTM lung disease by 1997 ATS diagnostic guideline. When new ATS/IDSA guideline was applied to 168 patients, 3 patients were newly diagnosed with NTM lung disease. The diagnosis rate was changed from 11.3% to 13.1%(p=0.483). The time to diagnosis of 1997 ATS guideline and new ATS/IDSA guideline were 45.6±52.5 days and 35.7±38.1 days, respectively(p=0.002).

CONCLUSION: By using new ATS/IDSA guideline, we can shorten the time to diagnose the NTM lung disease. However, more patients were diagnosed with NTM lung disease when new ATS/IDSA guideline used.

CLINICAL IMPLICATIONS: New ATS/IDSA guideline is useful to shorten the time to diagnose the NTM lung disease.

DISCLOSURE: Dongryeol Chae, No Financial Disclosure Information; No Product/Research Disclosure Information

12:45 PM - 2:00 PM




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