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Abstract

Background

The proportion of patients discharged after myocardial infarction with left ventricular systolic dysfunction remains high and the prognosis is unfavourable. The aim of this study was to analyse the temporal trends in the treatment and outcomes of a nationwide cohort of patients.

Methods and results

Data from the Polish Registry of Acute Coronary Syndromes and Acute Myocardial Infarction in Poland Registry were combined to achieve complete information on inhospital course, treatment and outcomes. An all-comer population of patients discharged with left ventricular ejection fraction of 40% or less formed the sample population (n = 28,080). The patients were analysed for the incidence of significant temporal trends and their possible consequences. The implementation of guideline-based treatment at discharge was high. In the post-discharge course a trend towards a higher frequency of percutaneous coronary intervention and a lower prevalence of planned coronary artery bypass grafting procedures was observed. The number of implantable cardioverter defibrillator/cardiac resynchronisation therapy defibrillator implantations was increasing. Cardiac rehabilitation was performed in 19–23% cases. The post-discharge outpatient care was based on general practitioner visits, with only 47.9–48.1% of patients attending an ambulatory cardiology specialist visit. In 12 months of observation the frequency of heart failure rehospitalisations was 17.5–19.1%, while the prevalence of rehospitalisations due to myocardial infarction decreased (8.3% in 2009 to 6.7% in 2013, P < 0.001). A trend towards lower all-cause mortality was observed. Assessment of composite outcomes (death, myocardial infarction, stroke or heart failure rehospitalisation) adjusted for sex and age at 12 months revealed a significant decreasing trend.

Conclusion

The overall prognosis in this population is improving slowly. This may be due to the increasing prevalence of guideline-based forms of secondary prevention. Efforts aimed at maintaining these trends are essential, as overall compliance with these guideline remains suboptimal.

Keywords

Myocardial infarction left ventricular dysfunction secondary prevention

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Temporal trends in secondary prevention in myocardial infarction patients discharged with left ventricular systolic dysfunction in Poland

Abstract

Background

Methods and results

Conclusion

Keywords

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References

Supplementary Material