• Rev Assoc Med Bras (1992) · Aug 2022

    Effects of statin response on cardiovascular outcomes in patients with ST-segment elevation myocardial infarction.

    • Mehmet Bülent Vatan, Perihan Varım, Suret Ağaç, Hakan Erkan, and Kahraman Coşansu.
    • Sakarya University Training and Research Hospital, Department of Cardiology - Sakarya, Turkey.
    • Rev Assoc Med Bras (1992). 2022 Aug 1; 68 (8): 1053-1058.

    ObjectiveThis study aimed to evaluate the effects of statin response on cardiovascular outcomes in patients with ST-segment elevation myocardial infarction.MethodsA total of 1029 ST-segment elevation myocardial infarction patients were enrolled in the study. The patients who failed to achieve >40% reduction in baseline low-density lipoprotein cholesterol levels within 30 days to 12 months after statin initiation were defined as suboptimal statin responders. The adjusted hazard ratios for cardiovascular outcomes for low-density lipoprotein cholesterol response to statins were estimated via the Cox proportional regression model. The relationship between the statin response and cardiovascular outcomes was also evaluated in a subgroup of on-treatment low-density lipoprotein cholesterol levels below 55 mg/dL.ResultsAmong the study population, 573 (55.6%) patients demonstrated suboptimal low-density lipoprotein cholesterol response to statin therapy. These patients showed a significantly higher incidence of the composite of major adverse cardiovascular events, including cardiovascular death, reinfarction, recurrent myocardial infarction, and target vessel revascularization during the follow-up compared with optimal responders (adjusted hazard ratios 3.99; 95%CI 2.66-6.01; p<0.001). In a subgroup of patients with on-treatment low-density lipoprotein cholesterol levels below 55 mg/dL, suboptimal statin responders also showed unfavorable cardiovascular outcomes (adjusted hazard ratios 8.73; 95%CI 2.81-27.1; p<0.001).ConclusionsThe present study showed that over half of the patients with ST-segment elevation myocardial infarction did not exhibit optimal low-density lipoprotein cholesterol response to statin. These patients have an increased risk of future major adverse cardiovascular events.

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