Qualidade de vida e força de preensão palmar em portadores de insuficiência cardíaca

Abstract

Introduction: Heart failure (HF) is a health condition in which structural and/or functional alterations can be observed, compromising ventricular filling or ejection. Its classification can be based on its ventricular ejection fraction and/or its stage. In addition, studies suggest that individuals with HF, regardless of their stage, have a worse quality of life. Thus, the objective of this research was to evaluate the relationship between peripheral muscle strength and quality of life in patients with heart failure. Therefore, this research is a cross-sectional study, carried out with patients with HF treated at the outpatient clinic of the Walter Cantídio university hospital, where, after applying the inclusion and exclusion criteria, the patients were evaluated regarding their quality of life with the Minnesota Living with Heart Failure Questionnaire – MLHFQ and manual pressure force (PP) using a manual hydraulic dynamometer. As a result, 111 participants were evaluated, most of them male (n=60), with functional classification of the New York Heart Association (NYHA) II (n=49, 44.1%) with left ventricular ejection fraction (LVEF) mean of 46.6±15.6%. The mean MLHFQ of the population was considered moderate and a reduction in PP strength was observed on both the dominant (30%, p=0.001) and non-dominant (33%, p=0.001) sides. When correlated PP with MLHFQ, no correlation was observed. In summary, the results found suggest that there is no correlation between muscle strength and quality of life, however, when stratified by the NYHA, it is observed that the higher the functional classification, the worse the quality of life and the lower the muscle strength.