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Korean J Gastroenterol. 2018 Jan 25;71(1):18-23. doi: 10.4166/kjg.2018.71.1.18.

[The Prevalence of Nontuberculous Mycobacterial Lung Disease with orwithout Reflux Esophagitis].

[Article in Korean]

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Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea.



Gastrointestinal reflux disease (GERD) is defined as 'a condition that develops when the reflux of stomach contents causes troublesome symptoms and/or complications'. It is associated with various lung diseases, including bronchial asthma, chronic bronchitis, and bronchiectasis. GERD may also affect nontuberculous mycobacterial (NTM) lung disease. We presumed that the normal mucosal barrier of the bronchial epithelium is broken due to the aspiration of gastric juice and consequent chronic bronchial inflammation. This study investigated the prevalence of GERD in accordance with the presence or absence of NTM lung disease and analyzed the difference.


We screened patients with NTM lung disease in this hospital between January 2011 and December 2015. Among these patients, gastroscopic examinations as a health check-up were performed on 93 patients. We obtained the prevalence of Reflux esophagitis (RE) in patients with NTM and compared it with the prevalence of RE in the normal control subjects.


Among 93 patients with NTM, patients without RE was 66.7% (62/93). RE-minimal change was diagnosed in 29.0% (27/93), and RE LA-A was diagnosed in 4.3% (4/93). Comparing the prevalence of RE minimal change, 29.0% (27/93) had NTM and 11.9% (3043/25536) did not have NTM. This was statistically significant.


We showed a greater prevalence of RE minimal change in patients with NTM than those without NTM with statistical significance.


GERD; Nontuberculous mycobacteria; Reflux esophagitis

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