This study evaluates the effects of chronic treatment with EET-A, an orally active epoxyeicosatrienoic acid (EETs) analog, on the course of aorto-caval fistula (ACF)-induced heart failure (HF) in Ren-2 transgenic rats (TGR), a model characterized by hypertension and augmented activity of the renin-angiotensin system (RAS). The results were compared with standard pharmacological blockade of the RAS using angiotensin-converting enzyme inhibitor (ACEi). The rationale for employing EET-A as a new treatment approach is based on our findings that apart from increased RAS activity, untreated ACF TGR also shows kidney and left ventricle (LV) tissue deficiency of EETs. Untreated ACF TGR began to die 17 days after creating ACF and were all dead by day 84. The treatment with EET-A alone or ACEi alone improved the survival rate: in 156 days after ACF creation, it was 45.5% and 59.4%, respectively. The combined treatment with EET-A and ACEi appeared to improve the final survival to 71%; however, the difference from either single treatment regimen did not reach significance. Nevertheless, our findings support the notion that targeting the cytochrome P-450-dependent epoxygenase pathway of arachidonic acid metabolism should be considered for the treatment of HF.

Aims. Sub-analysis of a retrospective nation-wide observational analysis of heart failure (HF) epidemiology reported to the Czech National Registry of Reimbursed Health Services between 2012 and 2018 aimed at angiotensin-converting enzyme inhibitors (ACEI), angiotensin-II-receptor antagonists (ARB) and angiotensin receptor blocker/neprilysin inhibitor (ARNI) use.

Aims The aim of this study is to analyse the prevalence, epidemiology, and anticoagulation prevention of stroke or transient ischaemic attack (TIA) in Czech patients with atrial fibrillation (AF). Methods and results Retrospective observational analysis of diagnoses, procedures, and treatment reported to the Czech National Registry of Reimbursed Healthcare Services between 2015 and 2018. Prevalence of AF in 2018 was 4.3% of Czech population and the prevalence of stroke/TIA in AF patients was 22.3% with annual incidence of 181.62 cases per 100 000 inhabitants. In 2018, CHA2DS2-ASc score ≥4 was present in 98% AF patients in secondary and 59% in primary prevention, respectively, while the anticoagulation treatment was used by 71–81% of them. Between 2015 and 2018, the percentage of AF patients treated with warfarin monotherapy in primary prevention decreased from 35% to 31%, with acetylsalicylic acid (ASA) monotherapy from 18% to 16% and non-vitamin K antagonist oral anticoagulants (NOACs) monotherapy increased from 7% to 11%. In secondary prevention, the percentage of warfarin monotherapy treatment decreased from 35% to 32%, with ASA monotherapy from 20% to 18% and with NOACs monotherapy increased from 9% to 15%. Conclusion This study followed all Czech patients with AF. The unadjusted prevalence and incidence of AF was higher compared with other countries and 2019 European Society of Cardiology Statistics. The study identified several gaps in standard of reimbursed care. 20–30% of AF patients with other risk factors were without any prevention medication and the share of ASA monotherapy in treated patients was 16–18%.

časopise") vydavatelstvím Oxford University Press v zastoupení Evropské kardiologické společnosti (European Society of Cardiology, ESC). EP Europace © The European Society of Cardiology 2023Všechna práva vyhrazena; žádná část publikace nesmí být reprodukována, uchovávána v systému pro uchování a vyhledávání dat či přenášena v jakékoliv formě, elektronicky, mechanicky, kopírováním, nahráváním či jiným způsobem bez předchozího písemného svolení vydavatele. Pro svolení s publikací pište prosím na e-mail:

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