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Int. j. cardiovasc. sci. (Impr.) ; 37: e20230070, 2024. tab, graf
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1550290

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Abstract Background There are limited data about the effect of new P2Y12 inhibitors on left ventricular ejection fraction (LVEF) after acute myocardial infarction (AMI). Objectives We aimed to investigate the effect of ticagrelor on left ventricular function, compared to clopidogrel in patients with heart failure with mildly reduced ejection fraction (HFmrEF) after AMI. Methods In this cross-sectional, single-center study, we included 251 patients with LVEF between 40% and 50% after AMI before discharge. The patients were divided into 2 groups according to the use of ticagrelor (166 patients) and clopidogrel (85 patients). At the end of the 12-month period, LVEF changes were assessed by echocardiography. P < 0.05 was considered statistically significant. Results The mean LVEF before discharge was 46.5% ± 3.6%, and no difference was observed between the ticagrelor and clopidogrel groups (p = 0.20). At the end of the first year, the mean LVEF of the patients increased to 49.8% ± 7.6% in both groups. The use of ticagrelor (β ± SE = 2.05 ± 0.93; p = 0.029), low creatinine level (β ± SE = −10.44 ± 2.35; p < 0.001), low troponin level (β ± SE = −0.38 ± 0.14; p = 0.006), and low heart rate (β ± SE = −0.98 ± 0.33; p = 0.003) were found to be independent predictors of the increase in LVEF (β ± SE 2.05 ± 0.93; 95% confidence interval: 0.21 to 3.90; p = 0.029). Conclusion In our study, ticagrelor improved left ventricular function in 12 months follow-up compared to clopidogrel in patients with HFmrEF after AMI.

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