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Infectio
Print version ISSN 0123-9392
Abstract
MORALES-MUNERA, Olga Lucía et al. Utility of the Murray criteria for sputum processing in patients with cystic fibrosis. Laboratory of Infected of the University of Antioquia (Medellín/Colombia). Infect. [online]. 2020, vol.24, n.4, pp.229-233. ISSN 0123-9392. https://doi.org/10.22354/in.v24i4.881.
Introduction:
Cystic fibrosis (CF) is an autosomal recessive disease that affects the production and viscosity of secretions, especially the origin of the respiratory airways; generating chronic inflammation and colonization / infection by microorganisms, leading to functional deterioration and death. Our study evaluated the quality of sputum samples from patients with CF who enter the Infected Laboratory of the UDEA based on the Murray criteria.
Methodology:
A descriptive study with retrospective information was carried out. All sputum from patients with CF were included, collected between January 2015 and December 2018 in the Infected Laboratory of the University of Antioquia.
Results:
We analyzed 686 samples from 85 patients with CF, positive culture was obtained in 501 (73 %), considering that 21 % of the respiratory samples did not meet the quality criteria according to Murray criteria. Of 908 isolates identified, 823 (90.6 %) correspond to microorganisms considered as pathogens in the airway of CF patients including S aureus, Pseudomonas spp, H influenzae, Burkhordelia spp, A. xylosoxidans, S maltophilia, A fumigatus, among others.
Conclusions:
The Murray criteria should not be used to define the processing or not of the sputum in patients with CF, all should be processed.
Keywords : cystic fibrosis; sputum; Murray criteria.