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Evaluation of respiratory dynamics by volumetric capnography during submaximal exercise protocol o six minutes on treadmill in cystic fibrosis patients

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Autor(es):
Parazzi, Paloma L. F. [1] ; Marson, Fernando A. L. [1, 2] ; Ribeiro, Maria A. G. O. [1] ; Schivinski, Camila I. S. [3] ; Ribeiro, Jose D. [1]
Número total de Autores: 5
Afiliação do(s) autor(es):
[1] Univ Estadual Campinas, Fac Ciencias Med, Dept Pediat, Unicamp, Campinas, SP - Brazil
[2] Univ Estadual Campinas, Fac Ciencias Med, Dept Genet Med, Unicamp, Campinas, SP - Brazil
[3] Univ Estado Santa Catarina UDESC, Ctr Educ Fis & Esporte, Florianopolis, SC - Brazil
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: Jornal de Pediatria; v. 95, n. 1, p. 76-86, JAN-FEB 2019.
Citações Web of Science: 0
Resumo

Objectives: Volumetric capnography provides the standard CO2 elimination by the volume expired per respiratory cycle and is a measure to assess pulmonary involvement. Thus, the objective of this study was to evaluate the respiratory dynamics of healthy control subjects and those with cystic fibrosis in a submaximal exercise protocol for six minutes on the treadmill, using volumetric capnography parameters (slope 3 {[}Slp3], Slp3/tidal volume {[}Slp3/TV], and slope 2 {[}Slp2]). Methods: This was a cross-sectional study with 128 subjects (cystic fibrosis, 64 subjects; controls, 64 subjects]. Participants underwent volumetric capnography before, during, and after six minutes on the treadmill. Statistical analysis was performed using the Friedman, Mann-Whitney, and Kruskal-Wallis tests, considering age and sex. An alpha =0.05 was considered. Results: Six minutes on the treadmill evaluation: in cystic fibrosis, volumetric capnography parameters were different before, during, and after six minutes on the treadmill; the same was observed for the controls, except for Slp2. Regarding age, an Slp3 difference was observed in cystic fibrosis patients regardless of age, at all moments, and in controls for age >= 12 years; a difference in Slp3/TV was observed in cystic fibrosis and controls, regardless of age; and an Slp2 difference in the cystic fibrosis, regardless of age. Regarding sex, Slp3 and Slp3/TV differences were observed in cystic fibrosis regardless of sex, and in controls in male participants; an Slp2 difference was observed in the cystic fibrosis and female participants. The analysis between groups (cystic fibrosis and controls) indicated that Slp3 and Slp3/TV has identified the CF, regardless of age and sex, while the Slp2 showed the CF considering age. Conclusions: Cystic fibrosis showed greater values of the parameters before, during, and after exercise, even when stratified by age and sex, which may indicate ventilation inhomogeneity in the peripheral pathways in the cystic fibrosis. (C) 2017 Sociedade Brasileira de Pediatria. Published by Elsevier Editora Ltda. (AU)

Processo FAPESP: 11/12939-4 - Associação entre polimorfismos de genes moduladores em crianças e adolescentes com asma alérgica e não alérgica: leve, moderada e grave
Beneficiário:Fernando Augusto de Lima Marson
Modalidade de apoio: Bolsas no Brasil - Doutorado
Processo FAPESP: 15/12858-5 - Identificação das mutações prevalentes e caracterização clínica e funcional de crianças e adultos com discinesia ciliar primária
Beneficiário:Fernando Augusto de Lima Marson
Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
Processo FAPESP: 15/12183-8 - Identificação das mutações prevalentes e caracterização clínica e funcional de crianças e adultos com discinesia ciliar primária
Beneficiário:Jose Dirceu Ribeiro
Modalidade de apoio: Auxílio à Pesquisa - Regular
Processo FAPESP: 11/18845-1 - Associação entre polimorfismos de genes moduladores em crianças e adolescentes com asma alérgica e não alérgica leve, moderada e grave
Beneficiário:Jose Dirceu Ribeiro
Modalidade de apoio: Auxílio à Pesquisa - Regular