Associação de ângulo de fase e composição corporal de sobreviventes de infarto agudo do miocárdio em serviços de referência do SUS no estado de Alagoas

Abstract

INTRODUCTION: Acute Myocardial Infarction (AMI) is one of the leading causes of mortality in Brazil and worldwide. Phase angle (PA) has been investigated as a possible prognostic predictor in various clinical conditions, including AMI. Assessing body composition and cellular integrity using PA is essential for monitoring the prognosis of patients surviving AMI. Its ability to reflect patients' nutritional status and cellular integrity allows for early interventions aimed at optimizing recovery and improving clinical outcomes. OBJECTIVE: The aim of this study was to assess the association between PA and body composition as prognostic factors in overweight adults and elderly survivors of AMI treated at SUS referral services in the state of Alagoas. MATERIALS AND METHODS: The present study is characterized as a cross-sectional study, whose sample consists of adult and elderly individuals (age ≥ 20 years), of both sexes, diagnosed with AMI, and overweight and/or abdominal obesity. This study is a sub-project linked to a larger study, previously approved by the Research Ethics Committee (CEP) of the Federal University of Alagoas (UFAL), under CAAE 39996120.0.00005013. This study included demographic, socioeconomic, clinical and anthropometric data obtained through interviews with patients and recorded on the Case Report Form (CRF) of the main PPSUS study. Statistical analysis was conducted using RStudio software (Version 4.2.1, R Core Team, 2022). RESULTS: The sample consisted of a total “n” = 74. The majority of participants were elderly (n=39) and female (58%). The most prevalent comorbidity was SAH (75,68%). BMI had an average of 27,63 ± 3,99, AC an average of 98,22 ± 11,7 WC 33,88 ± 4,22 and PA an overall average of 5,89 ± 1,28. There was a very weak positive correlation between BMI and PA (0,089; p-value = 0,449), a very weak positive correlation between AC and PA (0,051 [-0,179 and 0,277]; p-value = 0,663) and a moderate positive correlation between WC and PA (0,345; p-value = 0,002). CONCLUSION: There was an association between body composition related to the anthropometric variable PC, which reflects peripheral muscle mass, and PA, reinforcing, through the correlation observed between the two, the importance of preserving muscle mass for cellular integrity and the nutritional status of AMI patients.