Respiratory muscle strength and quality of life in chronic kidney disease patients undergoing hemodialysis

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DOI:

https://doi.org/10.1590/fm.2021.34113

Palavras-chave:

Chronic kidney failure. Renal dialysis. Respiratory muscles. Maximum respiratory pressures. Quality of life.

Resumo

Introduction: Hemodialysis sessions associated with the chronic kidney disease (CKD) repercussions may cause respiratory muscle impairment and limitations of daily living activities, which may compromise the quality of life. Objective: To evaluate respiratory muscle strength and quality of life in hemodialysis patients. Methods: A cross-sectional study involving CKD patients of both sexes undergoing hemodialysis. All were evaluated during hemodialysis, using an evaluation form containing personal and clinical data, presence of comorbidities, lifestyle (including self-reported physical activity) and vital signs. Respiratory muscle strength was analyzed by maximum inspiratory (MIP) and maximum expiratory (MEP) pressures by manovacuometer and quality of life using the SF-36 questionnaire. Results: Sixty-eight patients were evaluated (69.1% men), with a mean age 54.9 ± 13.6 years. The MEP% was below of predicted (79.5 ± 25.7) and the MIP% was reduced only in women (77.8 ± 38.7). The MIP% was related to CKD time (p = 0.04) in men. The SF-36 domain that showed the most impairment was physical limitation [25.0 (13.0-67.0)], while mental health was the least impaired domain [72.0 (62.0-84.0)]. Those who reported the practice of physical activity obtained better results in vitality domain (p = 0.01). In the analysis stratified by sex, the functional capacity domain was less compromised in men who practiced self-reported physical activity (p = 0.02). Conclusion: CKD patients undergoing hemodialysis had a reduction in MEP relative to predicted, in addition to a greater impairment of MIP in men with longer CKD time and in women alone, although the clinical relevance of this finding is uncertain. Quality of life was more compromised in the physical limitation domain, where those who self-reported physical activity achieved better results in the domains of vitality (total sample) and functional capacity (men).

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Biografia do Autor

Juliana de Souza da Silva, Universidade Federal do Amapá (UNIFAP)

Department of Biological Sciences and Health, Cardiovascular and Respiratory Physiotherapy Laboratory.

Tamara Silva de Sousa, Universidade Federal do Amapá (UNIFAP)

Department of Biological Sciences and Health, Cardiovascular and Respiratory Physiotherapy Laboratory.

Caroline de Fátima Ribeiro Silva, Universidade Federal do Amapá (UNIFAP)

Department of Biological Sciences and Health, Cardiovascular and Respiratory Physiotherapy Laboratory.

Fernanda Siqueira, Universidade Federal do Amapá (UNIFAP)

Department of Biological Sciences and Health, Cardiovascular and Respiratory Physiotherapy Laboratory.

Tatiana Onofre, Universidade Federal do Amapá (UNIFAP)

Department of Biological Sciences and Health, Cardiovascular and Respiratory Physiotherapy Laboratory.

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