BACKGROUND AND OBJECTIVES: To assess thromboembolic and bleeding risks in patients with heart failure (HF) and atrial fibrillation (AF) according to HF type. METHODS: We analyzed 6170 AF patients from the Prevention of thromboembolic events - European Registry in Atrial Fibrillation (PREFER in AF), and categorized patients into: HF with reduced left-ventricular ejection fraction (HFrEF; LVEF < 40%); mid-range EF (HFmrEF; LVEF: 40-49%); lower preserved EF (HFLpEF; LVEF: 50-60%), higher preserved EF (HFHpEF; LVEF > 60%), and no HF. Outcomes were ischemic stroke, major adverse cardiovascular and cerebral events (MACCE) and major bleeding occurring within 1-year. RESULTS: The annual incidence of stroke was linearly and inversely related to LVEF, increasing by 0.054% per each 1% of LVEF decrease (95% CI: 0.013%-0.096%; p = 0.031). Patients with HFHpEF had the highest CHA2DS2-VASc score, but significantly lower stroke incidence than other HF groups (0.65%, compared to HFLpEF 1.30%; HFmrEF 1.71%; HFrEF 1.75%; trend p = 0.014). The incidence of MACCE was also lower in HFHpEF (2.0%) compared to other HF groups (range: 3.8-4.4%; p = 0.001). Age, HF type, and NYHA class were independent predictors of thromboembolic events. Conversely, major bleeding did not significantly differ between groups (p = 0.168). CONCLUSION: Our study in predominantly anticoagulated patients with AF shows that, reduction in LVEF is associated with higher thromboembolic, but not higher bleeding risk. HFHpEF is a distinct and puzzling group, featuring the highest CHA2DS2-VASc score but the lowest residual risk of thromboembolic events, which warrants further investigation.

• MeSH
• antikoagulancia škodlivé účinky   terapeutické užití   MeSH
• cévní mozková příhoda diagnóza   epidemiologie   MeSH
• fibrilace síní diagnóza   farmakoterapie   epidemiologie   MeSH
• kohortové studie MeSH
• krvácení chemicky indukované   diagnóza   epidemiologie   MeSH
• lidé MeSH
• následné studie MeSH
• prospektivní studie MeSH
• registrace MeSH
• rizikové faktory MeSH
• senioři MeSH
• srdeční selhání diagnóza   farmakoterapie   epidemiologie   MeSH
• tepový objem účinky léků   fyziologie   MeSH
• tromboembolie diagnóza   farmakoterapie   epidemiologie   MeSH
• Check Tag
• lidé MeSH
• mužské pohlaví MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• Geografické názvy
• Evropa MeSH

BACKGROUND: Diabetes is a known risk predictor for thromboembolic events in patients with atrial fibrillation (AF), but no study has explored the prognostic weight of insulin in this setting. OBJECTIVES: This study evaluated the differential role of insulin versus no insulin therapy on thromboembolic risk in patients with diabetes and AF. METHODS: We accessed individual patient data from the prospective, real-world, multicenter, PREFER in AF (European Prevention of thromboembolic events-European Registry in Atrial Fibrillation). We compared the rates of stroke/systemic embolism at 1 year according to diabetes status (no diabetes, diabetes without insulin therapy, diabetes on insulin therapy). RESULTS: In an overall population of 5,717 patients, 1,288 had diabetes, 22.4% of whom were on insulin. For patients with diabetes who were on insulin, there was a significantly increased risk of stroke/systemic embolism at 1 year versus either no diabetes (5.2% vs. 1.9%; hazard ratio: 2.89; 95% confidence interval: 1.67 to 5.02; p = 0.0002) or diabetes without insulin treatment (5.2% vs. 1.8%; hazard ratio: 2.96; 95% confidence interval: 1.49 to 5.87; p = 0.0019). Notably, rates of stroke/embolism were similar in patients with diabetes not receiving insulin versus patients without diabetes (hazard ratio: 0.97; 95% confidence interval: 0.58 to 1.61; p = 0.90). The selective predictive role of insulin-requiring diabetes was independent of potential confounders, including diabetes duration, and was maintained in various subpopulations, including the subgroup receiving anticoagulant therapy. CONCLUSIONS: In this cohort of anticoagulated patients with AF, the sole presence of diabetes not requiring insulin did not imply an increased thromboembolic risk. Conversely, insulin-requiring diabetes contributed most, if not exclusively, to the overall increase of thromboembolic risk in AF.

• MeSH
• diabetes mellitus 1. typu komplikace   MeSH
• fibrilace síní MeSH
• inzulin terapeutické užití   MeSH
• komplikace diabetu * MeSH
• lidé MeSH
• prospektivní studie MeSH
• rizikové faktory MeSH
• senioři MeSH
• tromboembolie etiologie   prevence a kontrola   MeSH
• Check Tag
• lidé MeSH
• mužské pohlaví MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH

BACKGROUND: Increasing age predisposes to both thromboembolic and bleeding events in patients with atrial fibrillation; therefore, balancing risks and benefits of antithrombotic strategies in older populations is crucial. We investigated 1-year outcome with different antithrombotic approaches in very elderly atrial fibrillation patients (age ≥85 years) compared with younger patients. METHODS AND RESULTS: We accessed individual patients' data from the prospective PREFER in AF (PREvention oF thromboembolic events-European Registry in Atrial Fibrillation), compared outcomes with and without oral anticoagulation (OAC), and estimated weighed net clinical benefit in different age groups. A total of 6412 patients, 505 of whom were aged ≥85 years, were analyzed. In patients aged <85 years, the incidence of thromboembolic events was 2.8%/year without OAC versus 2.3%/year with OAC (0.5% absolute reduction); in patients aged ≥85 years, it was 6.3%/year versus 4.3%/year (2% absolute reduction). In very elderly patients, the risk of major bleeding was higher than in younger patients, but similar in patients on OAC and in those on antiplatelet therapy or without antithrombotic treatment (4.0%/year versus 4.2%/year; P=0.77). OAC was overall associated with weighted net clinical benefit, assigning weights to nonfatal events according to their prognostic implication for subsequent death (-2.19%; CI, -4.23%, -0.15%; P=0.036). We found a significant gradient of this benefit as a function of age, with the oldest patients deriving the highest benefit. CONCLUSIONS: Because the risk of stroke increases with age more than the risk of bleeding, the absolute benefit of OAC is highest in very elderly patients, where it, by far, outweighs the risk of bleeding, with the greatest net clinical benefit in such patients.

• MeSH
• antikoagulancia aplikace a dávkování   škodlivé účinky   MeSH
• aplikace orální MeSH
• časové faktory MeSH
• cévní mozková příhoda diagnóza   etiologie   mortalita   prevence a kontrola   MeSH
• fibrilace síní komplikace   diagnóza   farmakoterapie   mortalita   MeSH
• fibrinolytika aplikace a dávkování   škodlivé účinky   MeSH
• hodnocení rizik MeSH
• incidence MeSH
• inhibitory agregace trombocytů aplikace a dávkování   škodlivé účinky   MeSH
• klinické rozhodování MeSH
• krvácení chemicky indukované   mortalita   MeSH
• lidé MeSH
• registrace MeSH
• rizikové faktory MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• tranzitorní ischemická ataka diagnóza   etiologie   mortalita   prevence a kontrola   MeSH
• tromboembolie diagnóza   etiologie   mortalita   prevence a kontrola   MeSH
• věkové faktory MeSH
• výběr pacientů MeSH
• výsledek terapie MeSH
• Check Tag
• lidé MeSH
• mužské pohlaví MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• multicentrická studie MeSH
• srovnávací studie MeSH
• Geografické názvy
• Evropa MeSH