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Respiratory muscle impairment evaluated with mep/mip ratio in children and adolescents with chronic respiratory disease / Fraqueza muscular respiratória avaliada por meio da relação pemax/pimax em crianças com doença respiratória crônica
Rodríguez-Núñez, Iván; Torres, Gerardo; Luarte-Martinez, Soledad; Manterola, Carlos; Zenteno, Daniel.
  • Rodríguez-Núñez, Iván; Universidad de Concepción. CL
  • Torres, Gerardo; Dr. Guillermo Grant Benavente Hospital. Concepción. CL
  • Luarte-Martinez, Soledad; Universidad de Concepción. CL
  • Manterola, Carlos; Universidad de La Frontera. CL
  • Zenteno, Daniel; Universidad de Concepción. CL
Rev. Paul. Pediatr. (Ed. Port., Online) ; 39: e2019414, 2021. tab, graf
Article in English, Portuguese | LILACS, SES-SP | ID: biblio-1143851
ABSTRACT
ABSTRACT

Objective:

To evaluate the strength of respiratory muscles and to compare maximum inspiratory (MIP) and expiratory (MEP) pressure and MEP/MIP ratio between patients with chronic respiratory diseases and healthy individuals.

Methods:

Case-control study. Individuals with neuromuscular disease and post-infectious bronchiolitis obliterans were considered. In addition, they were also matched according to anthropometric and demographic characteristics with healthy children and adolescents. MIP, MEP in the three groups, and pulmonary function only in patients with chronic respiratory diseases were recorded.

Results:

A total of 52 subjects with CRD (25 with neuromuscular disease, and 27 with post-infectious bronchiolitis obliterans) and 85 healthy individuals were included, with an average age of 11.3±2.1 years. Patients with neuromuscular disease and post-infectious bronchiolitis obliterans presented lower MIP and MEP when compared with healthy individuals, although MEP/MIP ratio was lower in patients with neuromuscular disease (0.87±0.3) and higher in patients with post-infectious bronchiolitis obliterans (1.1±0.3) compared to the healthy group (0.97±0.2). Only in patients with neuromuscular disease a negative correlation was observed between MEP/MIP ratio and age (r=-0.50; p=0.01).

Conclusions:

Differences in the pattern of muscular weakness between patients with chronic respiratory diseases were observed. In patients with neuromuscular disease, a decrease in the MEP/MIP ratio depending on MIP was verified; and in those patients with post-infectious bronchiolitis obliterans, an increase in the MEP/MIP ratio depending on MIP was also observed.
RESUMO
RESUMO

Objetivo:

Avaliar a força dos músculos respiratórios e comparar a relação entre a pressão expiratória máxima (PEmáx) e a pressão inspiratória máxima (PImáx) em pacientes com doença respiratória crônica (DRC) e crianças saudáveis.

Métodos:

Estudo caso-controle. Foram selecionados indivíduos com doença neuromuscular e bronquiolite obliterante pós-infecciosa. Ademais, os grupos foram pareados com crianças e adolescentes saudáveis, considerando características antropométricas e demográficas. Foram registradas a PImáx e a PEmáx nos três grupos e a função pulmonar apenas em pacientes com doença respiratória crônica.

Resultados:

Foram incluídos 52 indivíduos com DRC (25 com doença neuromuscular e 27 com bronquiolite obliterante pós-infecciosa) e 85 indivíduos saudáveis, com idade média de 11,3±2,1 anos. Pacientes com doença neuromuscular e bronquiolite obliterante pós-infecciosa apresentaram menor PImáx e PEmáx em comparação aos indivíduos saudáveis, embora a relação PEmáx/PImáx tenha sido menor nos pacientes com doença neuromuscular (0,87±0,3) e maior nos pacientes com bronquiolite obliterante pós-infecciosa (1,1±0,3) em comparação ao grupo saudável (0,97±0,2). Somente em pacientes com doença neuromuscular foi observada uma correlação negativa entre a razão PEmáx/PImáx e a idade (r=-0,50; p=0,01).

Conclusões:

Foram observadas diferenças no padrão de fraqueza muscular em pacientes com doença respiratória crônica. Nos pacientes com doença neuromuscular, verificou-se diminuição na relação PEmáx/PImáx dependendo da PImáx; em pacientes com bronquiolite obliterante pós-infecciosa, foi observado aumento na relação dependendo da PImáx.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Respiratory Muscles / Bronchiolitis Obliterans / Muscle Weakness / Neuromuscular Diseases Type of study: Observational study Language: English / Portuguese Journal: Rev. Paul. Pediatr. (Ed. Port., Online) Year: 2021 Type: Article Institution/Affiliation country: Dr. Guillermo Grant Benavente Hospital/CL / Universidad de Concepción/CL / Universidad de La Frontera/CL

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Full text: Available Index: LILACS (Americas) Main subject: Respiratory Muscles / Bronchiolitis Obliterans / Muscle Weakness / Neuromuscular Diseases Type of study: Observational study Language: English / Portuguese Journal: Rev. Paul. Pediatr. (Ed. Port., Online) Year: 2021 Type: Article Institution/Affiliation country: Dr. Guillermo Grant Benavente Hospital/CL / Universidad de Concepción/CL / Universidad de La Frontera/CL