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The Value of Sputum Polymerase Chain Reaction for Detection of Nontuberculous Mycobacteria in Cystic Fibrosis Patients With Negative Nontuberculous Mycobacteria Sputum Culture Publisher



Mirlohi SH1 ; Eftekhari K2 ; Shirzadi R1 ; Fateh A3 ; Masoumi M4 ; Modaresi M1
Authors
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Authors Affiliations
  1. 1. Pediatric Respiratory and Sleep Medicine Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. Pediatric Gastroenterology and Hepatology Research Center, Department of Pediatrics, Bahrami Children's Hospital, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Department of Mycobacteriology and Pulmonary Research, Microbiology Research Center (MRC), Pasteur Institute of Iran, Tehran, Iran
  4. 4. Department of Mycobacteriology and Pulmonary Research, Pasteur Institute of Iran, Tehran, Iran

Source: Medical Journal of the Islamic Republic of Iran Published:2022


Abstract

Background: Cystic Fibrosis (CF) is a life-threatening autosomal recessive disease. The purpose of this study was to evaluate the value of Polymerase Chain Reaction (PCR) in CF patients with Nontuberculous Mycobacteria (NTM) negative sputum culture. Methods: This is a descriptive cross-sectional study. The population included all children with CF, aged between 5 - 18 years old, with an NTM negative sputum culture. The patient's sputum samples were sent for smear and culture of NTM, RFLP PCR, and PCR sequence. Results: In total, 57 CF patients with negative NTM sputum culture were enrolled. Nine patients (15.78%) had positive sputum PCR for NTM. Among these strains, Mycobacterium simiae was the most common one with 5 cases (8.77% of total positive cases). Conclusion: PCR can be used as an alternative diagnostic method for NTM in CF patients with negative NTM sputum culture, always under clinical suspicion of the disease. © 2022 Iran University of Medical Sciences. All Rights Reserved.