Adriana Carolina Marques Ferreira1, Fernando Augusto Lima Marson2,3, Milena Antonelli Cohen1, Carmen Silvia Bertuzzo4, Carlos Emilio Levy1,5, Antonio Fernando Ribeiro1, Jose Dirceu Ribeiro1. 1. Department of Pediatrics, School of Medical Sciences, University of Campinas, Rua Tessália Vieira de Camargo, 126, Cidade Universitária Zeferino Vaz, Campinas, SP, CEP 13083-887, Brazil. 2. Department of Pediatrics, School of Medical Sciences, University of Campinas, Rua Tessália Vieira de Camargo, 126, Cidade Universitária Zeferino Vaz, Campinas, SP, CEP 13083-887, Brazil. fernandolimamarson@hotmail.com. 3. Department of Medical Genetics, Faculdade de Ciências Médicas, School of Medical Sciences, University of Campinas, Rua Tessália Vieira de Camargo, 126, Cidade Universitária Zeferino Vaz, Campinas, SP, CEP 13083-887, Brazil. fernandolimamarson@hotmail.com. 4. Department of Medical Genetics, Faculdade de Ciências Médicas, School of Medical Sciences, University of Campinas, Rua Tessália Vieira de Camargo, 126, Cidade Universitária Zeferino Vaz, Campinas, SP, CEP 13083-887, Brazil. 5. Department of Clinical Pathology, School of Medical Sciences, University of Campinas, Rua Tessália Vieira de Camargo, 126, Cidade Universitária Zeferino Vaz, Campinas, SP, CEP 13083-887, Brazil.
Abstract
PURPOSE: The aim of this study was to compare the qualitative and semi-quantitative detection of pathogens in the airway secretions of patients with cystic fibrosis (CF) and the sputum induction capacity before and after inhalation of 7% hypertonic saline solution (HSS). METHODS: The study enrolled 64 patients with CF. Airway secretions were collected from all enrolled patients with CF before and after inhalation of 7% HSS, and the samples were screened for pathogens. RESULTS: Inhalation of 7% HSS increased the probability of producing sputum from 36 to 52% (p = 0.002) in children with CF. The effect was most in children under 11 years. Inhalation of 7% HSS improved qualitative pathogen identification (p = 0.008). Inhalation of 7% HSS increased the mucoid Pseudomonas aeruginosa (p = 0.002) and non-mucoid P. aeruginosa in the semi-quantitative analysis (p = 0.035). Four new pathogens (Aspergillus fumigatus, Achromobacter xylosoxidans, Ochrobactrum anthropi, and Elizabethkingia meningoseptica) were identified in the sputum samples collected from the airways of patients with CF following 7% HSS. CONCLUSIONS: Inhalation of 7% HSS increased sputum production and pathogen identification in children with CF. The inhalation of 7% HSS was feasible and should be implemented for routine pathogen detection in the airways of patients with CF, particularly in those patients who do not produce sputum.
PURPOSE: The aim of this study was to compare the qualitative and semi-quantitative detection of pathogens in the airway secretions of patients with cystic fibrosis (CF) and the sputum induction capacity before and after inhalation of 7% hypertonic saline solution (HSS). METHODS: The study enrolled 64 patients with CF. Airway secretions were collected from all enrolled patients with CF before and after inhalation of 7% HSS, and the samples were screened for pathogens. RESULTS: Inhalation of 7% HSS increased the probability of producing sputum from 36 to 52% (p = 0.002) in children with CF. The effect was most in children under 11 years. Inhalation of 7% HSS improved qualitative pathogen identification (p = 0.008). Inhalation of 7% HSS increased the mucoid Pseudomonas aeruginosa (p = 0.002) and non-mucoid P. aeruginosa in the semi-quantitative analysis (p = 0.035). Four new pathogens (Aspergillus fumigatus, Achromobacter xylosoxidans, Ochrobactrum anthropi, and Elizabethkingia meningoseptica) were identified in the sputum samples collected from the airways of patients with CF following 7% HSS. CONCLUSIONS: Inhalation of 7% HSS increased sputum production and pathogen identification in children with CF. The inhalation of 7% HSS was feasible and should be implemented for routine pathogen detection in the airways of patients with CF, particularly in those patients who do not produce sputum.
Authors: M Proesmans; W Balinska-Miskiewicz; L Dupont; X Bossuyt; J Verhaegen; N Høiby; K de Boeck Journal: Eur Respir J Date: 2006-05 Impact factor: 16.671
Authors: Larissa Lazzarini Furlan; Fernando Augusto Lima Marson; José Dirceu Ribeiro; Carmen Sílvia Bertuzzo; João Batista Salomão Junior; Dorotéia Rossi Silva Souza Journal: Hum Genet Date: 2016-05-21 Impact factor: 4.132
Authors: Scott C Bell; Marcus A Mall; Hector Gutierrez; Milan Macek; Susan Madge; Jane C Davies; Pierre-Régis Burgel; Elizabeth Tullis; Claudio Castaños; Carlo Castellani; Catherine A Byrnes; Fiona Cathcart; Sanjay H Chotirmall; Rebecca Cosgriff; Irmgard Eichler; Isabelle Fajac; Christopher H Goss; Pavel Drevinek; Philip M Farrell; Anna M Gravelle; Trudy Havermans; Nicole Mayer-Hamblett; Nataliya Kashirskaya; Eitan Kerem; Joseph L Mathew; Edward F McKone; Lutz Naehrlich; Samya Z Nasr; Gabriela R Oates; Ciaran O'Neill; Ulrike Pypops; Karen S Raraigh; Steven M Rowe; Kevin W Southern; Sheila Sivam; Anne L Stephenson; Marco Zampoli; Felix Ratjen Journal: Lancet Respir Med Date: 2019-09-27 Impact factor: 30.700