Avaliação da da reprodutibilidade da mobilidade diafragmática pelo método ultrassonográfico indireto / Reproducibility assessment of the diaphragmatic mobility by indirect ultrasonographic method

AUTOR(ES)
FONTE

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia

DATA DE PUBLICAÇÃO

11/03/2011

RESUMO

Objetive: Assessing the reproducibility of the ultrasonographic measurement of craniocaudal displacement of the left branches of the portal vein as a method to evaluate the right hemidiaphragm mobility in healthy young adults. Methods: Forty-one healthy subjects were selected, with age range between 20 and 30 years. The participants of the study were underwent physical examination to measure the cardiorespiratory parameters and anthropometric variables, pulmonary function test, respiratory muscle strength assessment and ultrasonographic evaluation of the the right hemidiaphragm mobility. The implementation and interpretation of ultrasound imaging were performed by two observers (A and B), independently, at two different times (1st and 2nd test). The intra-observer and inter-observer reproducibility and the repeatability of ultrasound measurements were determined by intraclass correlation coefficient (ICC[2,1]) with 95% confidence interval (CI). The Bland &Altman plot was also used, because it allows better visualization of agreement between measures. The level of significance for statistical treatment was 5% (p0,05). Results: From the forty-one subjects participated in study, 27 were females (66%) and 14 males (34%), with means age of 24,8 2,7 years. In the analysis of inter-observer reproducibility, the ICC[2,1] indicated "high correlation" for both the 1st and the 2nd test (ICC[2,1] = 0.83, 95% CI = 0.70 to 0.91 and ICC[2,1] = 0.79, 95% CI = 0.61 to 0.89, respectively). In the analysis of intra-observer reproducibility, the ICC[2,1] indicated "moderate correlation" for observer A (ICC[2,1] = 0,69, 95% CI = 0.45 to 0.84) and for observer B (ICC[2,1] = 0.65, 95% CI = 0.39 to 0.81). In analyzing the repeatability of ultrasound measurements, the ICC[2,1] indicated a "high correlation" for all tests performed (ICC[2,1] = 0.86, 0.80, 0.71, 0.79, p<0.001). Conclusion: The ultrasonographic measurement of craniocaudal displacement of the left branches of the portal vein is a reproducible method for indirect assessment of the right hemidiaphragm mobility in healthy young adults.

ASSUNTO(S)

diafragma ultrassonografia reprodutibilidade dos testes respiração educacao fisica diaphragm ultrasonography reproducibility of results respiration

ACESSO AO ARTIGO

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