Teste de exercício submáximo na fibrose cística: repercussões no sistema respiratório - série de casos
Submaximal exercise tests in cystic fibrosis: effects on the respiratory system - A case series
Antônio Manoel Goulart Neto, Maíra Seabra de Assumpção, Francieli Camila Mucha, Camila Isabel Santos Schivinski
Resumo
Introdução: Testes de exercício submáximos são indicados para avaliação da capacidade funcional na fibrose cística (FC), frequentemente, comprometida pelo processo obstrutivo e limitação ventilatória. Objetivo: Verificar as repercussões do Teste de Caminhada de 6 minutos (TC6min) na mecânica respiratória e função pulmonar de crianças com FC. Método: Participaram pacientes com diagnóstico de FC, clinicamente estáveis, acompanhados no Hospital Infantil Joana de Gusmão, Florianópolis-SC- Brasil. A gravidade da doença foi registrada, segundo o escore de Shachman-Doershuk, e conduziram-se análise antropométrica, exames de oscilometria de impulso (IOS) e espirometria, sendo os dois últimos repetidos, antes e imediatamente após o TC6min, o qual foi realizado duas vezes, com intervalo de 30 minutos. Resultados: Foram avaliadas, três crianças, entre 9 e 11 anos de idade, e a gravidade da doença foi classificada como “leve” e “excelente”. Todos apresentaram diminuição da capacidade funcional, avaliada pelo TC6min. Percebeu-se, também, diminuição dos parâmetros espirométricos, após o teste, porém, não se identificou um padrão de comportamento nesses parâmetros, bem como nos dados do IOS, após o esforço realizado no TC6min. Conclusão: Após a realização do teste de exercício submáximo, os parâmetros espirométricos diminuíram e apresentaram repercussões distintas, nas avaliações de mecânica respiratória e função pulmonar, após o TC6min.
Palavras-chave
Abstract
Introduction: Submaximal exercise tests are indicated for assessing functional capacity in cystic fibrosis (CF), which is often compromised by the obstructive process and ventilatory limitation. Objective: To verify the repercussions of the 6-minute walk test (6MWT) on the respiratory mechanics and lung function of children with CF. Method: Patients with clinically stable CF in treatment at the Hospital Infantil Joana de Gusmão, Florianópolis / SC- Brazil, participated in the study. Patients had anthropometrics assessed and had the severity of the disease classified according to the Shachman-Doershuk score. Impulse oscillometry (IOS), spirometry and the 6MWT tests were performed twice. Spirometry and IOS were done before and immediately after the 6MWT. The two 6MWT were done with an interval of 30 minutes between each test. Results: three children between 9 and 11 years of age were evaluated, the severity of the disease was classified as “mild” and “excellent”. Patients presented a reduction in functional capacity during the 6MWT. A reduction in spirometric parameters was noticed after 6MWT; however, a pattern of behaviour was not identified in the spirometric and oscillometric parameters after the effort made in the 6MWT. Conclusion: in the assessed patients with cystic fibrosis, there was a reduction in lung function and repercussions in the respiratory mechanics after the performance of 6MWT.
Keywords
Referências
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