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Statin adherence and health outcomes after st-elevation myocardial infarction: 1-year follow-up study
1Servicio de Farmacia de Área, Departamento de Salud de Valencia Clínico-Malvarrosa, Valencia, Spain.
Insights
Statin adherence after ST-elevation myocardial infarction (STEMI) significantly reduces cardiovascular mortality. Monitoring adherence beyond initial prescription is crucial for improving patient outcomes in the first year post-STEMI.
Area of Science:
- Cardiology
- Pharmacology
- Public Health
Background:
- Dyslipidemia control post-ST-elevation myocardial infarction (STEMI) is often inadequate despite high statin prescription rates.
- Assessing statin treatment adherence and its impact on cardiovascular outcomes is vital for optimizing secondary prevention.
- Understanding factors influencing adherence can guide interventions to improve patient management after STEMI.
Purpose of the Study:
- To estimate statin treatment adherence rates in patients following a first type 1 STEMI.
- To identify demographic and clinical factors associated with statin adherence.
- To evaluate the impact of statin adherence on cardiovascular mortality and new vascular events within the first year post-STEMI.
Main Methods:
- Retrospective observational study of 552 patients hospitalized with STEMI between 2008 and 2013.
- Statin adherence measured by proportion of days covered (PDC).
- Binary logistic regression and competing risk analysis used to assess relationships between adherence, patient characteristics, and cardiovascular outcomes.
Main Results:
- Lower adherence observed in foreign nationals, smokers, and patients with hepatic impairment.
- Higher adherence noted in patients ≥50 years, pensioners, and those with dyslipidemia, obesity, or kidney failure.
- Statin adherence was associated with a significant reduction in cardiovascular mortality (HR 0.201, p=0.001) but not new vascular events (p=0.834).
Conclusions:
- Statin adherence in the first year after STEMI is a critical determinant of mortality.
- Assessment of statin adherence should extend beyond initial prescription to ensure sustained patient benefit.
- Improving statin adherence is a key strategy for reducing mortality in STEMI survivors.
Background And Objectives:
There is deficient control of dyslipidaemia after ST-elevation myocardial infarction (STEMI) despite high rates of statin prescription. The aim of this study was to estimate the rate of statin treatment adherence after a first type 1 STEMI episode, the factors that determine the adherence and its impact on cardiovascular outcomes during the first year of progression.
Design:
We conducted an observational retrospective study with a cohort of patients hospitalised between 2008 and 2013, with an active statin prescription during the first year of follow-up.
Material And Methods:
We determined the adherence using the proportion of days covered. The relationship between compliance and the rest of the variables was determined with a binary logistic regression analysis. Competing risk analysis assessed the relationship between cardiovascular mortality or new vascular event with adherence.
Results:
The study included 552 patients (64.7 ± 13.7; 73.9% men) of the 613 analysed. There was less adherence among foreign nationals, smokers and individuals with hepatic impairment. Compliance was greater starting at 50 years of age, among pensioners and those with dyslipidaemia, obesity and kidney failure and in cases of compliance with the rest of the groups indicated in secondary prevention. Compliance reduced cardiovascular mortality (1.9% vs. 9.1%; HR 0.201; 95% CI 0.075-0.539; p = .001) but not the onset of a new cardiovascular event (5.5% vs. 6.5%; p = .834).
Conclusions:
Statin adherence during the first year after a STEMI is a key factor in mortality, a period in which its assessment is needed beyond the prescription.
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