Non-tuberculous mycobacterial disease is common in patients with non-cystic fibrosis bronchiectasis

Mehdi Mirsaeidi, Walid Hadid, Basel Ericsoussi, Daniel Rodgers, Ruxana T. Sadikot

Research output: Contribution to journalArticlepeer-review

77 Scopus citations

Abstract

Background: Non-tuberculous mycobacteria (NTM) are ubiquitous environmental organisms. Cystic fibrosis (CF) patients are susceptible to NTM, but data about NTM in patients with non-CF bronchiectasis are limited. Methods: We conducted a retrospective, descriptive study at the University of Illinois Medical Center. All patients diagnosed with bronchiectasis (code 494) using the International Classification of Diseases, ninth revision (ICD-9), between 1999 and 2006, were identified. Clinical data including lung function, radiology studies, and presence of NTM in sputum were abstracted for those who met the study criteria. Results: One hundred eighty-two patients were enrolled in the study. Patients were divided into two groups: bronchiectasis with NTM isolates (n = 68) and bronchiectasis without isolates (n =114), and compared for clinical characteristics and underlying diseases. Mycobacterium avium complex (MAC) was the most common isolate. Fifty-five patients (30%) met the American Thoracic Society criteria for diagnosis of NTM disease. Gram-negative rods were commonly co-isolated. The probability of NTM isolation was significantly higher in elderly female patients (p = 0.04). Moreover, the probability of NTM isolation was significantly higher in the female group with low body mass index (BMI) (p = 0.002). Conclusions: NTM infections are common in non-CF bronchiectasis. MAC is the most frequently isolated NTM in these patients. There is also great variability in age and sex characteristics for NTM in non-CF bronchiectasis patients. Female patients with a low BMI are a high risk group for NTM infection in non-CF bronchiectasis. Routine screening for NTM is strongly recommended in this patient population.

Original languageEnglish (US)
Pages (from-to)e1000-e1004
JournalInternational Journal of Infectious Diseases
Volume17
Issue number11
DOIs
StatePublished - Nov 2013
Externally publishedYes

Keywords

  • BMI
  • Bronchiectasis
  • NTM
  • Non-CF
  • Non-tuberculous mycobacterial diseases

ASJC Scopus subject areas

  • Microbiology (medical)
  • Infectious Diseases

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