High-Sensitivity C-Reactive Protein as a Predictor of Cardiovascular Events after ST-Elevation Myocardial Infarction / Proteína C-Reativa Prediz Eventos Cardiovasculares Após Infarto do Miocárdio com Elevação do ST?

ABSTRACT

Background: The association between high-sensitivity C-reactive protein and recurrent major adverse cardiovascular events (MACE) in patients with ST-elevation myocardial infarction who undergo primary percutaneous coronary intervention remains controversial. Objective: To investigate the potential association between high-sensitivity C-reactive protein and an increased risk of MACE such as death, heart failure, reinfarction, and new revascularization in patients with ST-elevation myocardial infarction treated with primary percutaneous coronary intervention. Methods: This prospective cohort study included 300 individuals aged >18 years who were diagnosed with ST-elevation myocardial infarction and underwent primary percutaneous coronary intervention at a tertiary health center. An instrument evaluating clinical variables and the Thrombolysis in Myocardial Infarction (TIMI) and Global Registry of Acute Coronary Events (GRACE) risk scores was used. High-sensitivity C-reactive protein was determined by nephelometry. The patients were followed-up during hospitalization and up to 30 days after infarction for the occurrence of MACE. Student's t, Mann-Whitney, chi-square, and logistic regression tests were used for statistical analyses. P values of ≤0.05 were considered statistically significant. Results: The mean age was 59.76 years, and 69.3% of patients were male. No statistically significant association was observed between high-sensitivity C-reactive protein and recurrent MACE (p = 0.11). However, high-sensitivity C-reactive protein was independently associated with 30-day mortality when adjusted for TIMI [odds ratio (OR), 1.27; 95% confidence interval (CI), 1.07-1.51; p = 0.005] and GRACE (OR, 1.26; 95% CI, 1.06-1.49; p = 0.007) risk scores. Conclusion: Although high-sensitivity C-reactive protein was not predictive of combined major cardiovascular events within 30 days after ST-elevation myocardial infarction in patients ...

RESUMO

Fundamento A associação entre proteína C-reativa ultrassensível e eventos cardiovasculares maiores recorrentes em pacientes com infarto agudo do miocárdio com supradesnivelamento do segmento ST submetidos à intervenção coronariana percutânea primária é controversa. Objetivo: Verificar se a proteína C-reativa ultrassensível está associada a risco aumentado de eventos cardiovasculares maiores, como morte, insuficiência cardíaca, reinfarto e nova revascularização, em pacientes com infarto agudo do miocárdio com supradesnivelamento do segmento ST tratados com intervenção coronariana percutânea primária. Métodos: Coorte prospectiva, incluindo 300 indivíduos maiores de 18 anos admitidos em um centro terciário com diagnóstico de infarto agudo do miocárdio com supradesnivelamento do segmento ST submetidos à intervenção coronariana percutânea primária. Utilizou-se instrumento contendo variáveis clínicas e escores de risco TIMI e GRACE, além da proteína C-reativa ultrassensível analisada por nefelometria. Os pacientes foram acompanhados na internação e até 30 dias após o infarto para a ocorrência de eventos cardiovasculares maiores recorrentes. Na análise estatística, foram utilizados os testes t de Student, Mann-Whitney, qui-quadrado e regressão logística. O valor de p ≤ 0,05 foi considerado significativo. Resultados: A média de idade foi de 59,76 anos, sendo 69,3% do gênero masculino. Não houve associação estatisticamente significativa entre proteína C-reativa ultrassensível e eventos cardiovasculares maiores recorrentes (p = 0,11). No entanto, a proteína C-reativa ultrassensível foi associada a óbito em 30 dias, de forma independente, quando ajustada ...