scholarly journals Stroke in atrial fibrillation: inflammation as additional risk (retrospective study)

EP Europace ◽  
2021 ◽  
Vol 23 (Supplement_3) ◽  
Author(s):  
S Grigoryan ◽  
LG Hazarapetyan ◽  
AA Stepanyan ◽  
DM Andreasyan

Abstract Funding Acknowledgements Type of funding sources: None. Introduction Atrial fibrillation (AF) is a highly prevalent  problem that is becoming more common with population aging  and  has many complication. The most significant complication of AF is thromboembolism, particularly stroke, because AF  produces a hypercoagulable state and provokes pro-fibrotic, pro-hypertrophic, and pro-inflammatory responses in a variety of tissues. Various inflammation markers such as interleukin-6 (IL-6) and high sensitivy C-reactive protein (hsCRP) have been linked with AF. Several prothrombotic factors have been found to be elevated in AF, which contributed to an increased risk for stroke.The tissue factor (TF) as a principal initiator of the coagulation cascade. The aim of this study is to investigate the relationship between inflammation markers and risk of dynamic cerebrovascular accident or stroke, including the impact of this interaction on the outcome in patients with AF Methods. We observed 441 patients with nonvalvular AF during 5 years (2010-2016). Clinical examination of patients included a study of complaints (especially HF, dynamic cerebrovascular accident and stroke), physical, laboratory and instrumental examination, also additional biochemical blood tests , such as TF, hsCRP and IL-6. The blood tests were determined by ELISA on the analyzer "Stat Fax 303 Plus".  Treatment regimens carried out in all patients included standard therapy, which is held in the hospital for the treatment of AF.  Studies were conducted on the basis of simple randomized open-label protocols, using the universal statistical packages SPSS 13.0 Results Obtained results have shown that among 441 patients with AF within 5 years, heart failure was detected in 257 patients, 116 had either a cerebral circulation disorder or a stroke. It was found that in patients undergoing dynamic cerebrovascular accident or stroke there was a significant increase in levels of inflammatory markers compared with other patients with AF. So, the significant differences between the levels of hsCRP are 6, 7± 1.8 vs. 3.2 ± 0.6 p = 0.002 and level of IL-6 is 4.2± 0.8 vs.  2.6± 1.1 p = 0.043 accordingly. We revealed also that in patients with dynamic cerebrovascular accident or stroke the level of TF is improved as compared the other patients with AF (1200± 50.vs 850 ± 31.9 p = 0.026). Moreover plasma levels of hsCRP were higher among AF patients at high risk of stroke (=3 or more) by CHA2DS2-VASc (p = 0.003).  Besides the levels of hsCRP and IL-6 are markedly elevated in patients with dilated left atrium, poorly functioning left atrial appendage and ventricular dysfunction .The similar tendency of hsCRP, IL-6 and TF was also observed in patients with AF and heart failure. Conclusion we have demonstrated that inflammation markers such as hsCRP and IL-6, together with coagulation cascade markers, are additional prognostic criteria that contribute to the development of dynamic cerebral circulation disorders or stroke in patients with AF

Circulation ◽  
2020 ◽  
Vol 141 (Suppl_1) ◽  
Author(s):  
Aniqa Alam ◽  
Nemin Chen ◽  
Pamela L Lutsey ◽  
Richard MacLehose ◽  
J'Neka Claxton ◽  
...  

Background: Polypharmacy is highly prevalent in elderly individuals with chronic conditions, including atrial fibrillation (AF). The impact of polypharmacy on adverse outcomes and on treatment effectiveness in elderly AF patients remains unaddressed. Methods: We studied 338,810 AF patients ≥75 years of age with 1,761,660 active prescriptions [mean (SD), 5.1 (3.8) per patient] enrolled in the MarketScan Medicare Supplemental database in 2007-2015. Polypharmacy was defined as ≥5 active prescriptions at AF diagnosis based on outpatient pharmacy claims. AF treatments (oral anticoagulation, rhythm and rate control) and cardiovascular endpoints (ischemic stroke, bleeding, heart failure) were defined based on inpatient, outpatient and pharmacy claims. Multivariable Cox models were used to estimate associations of polypharmacy with cardiovascular endpoints and the interaction between polypharmacy and AF treatments in relation to cardiovascular endpoints. Results: Prevalence of polypharmacy was 52% (176,007 of 338,810). Patients with polypharmacy had increased risk of major bleeding [hazard ratio (HR) 1.16, 95% confidence interval (CI) 1.12, 1.20] and heart failure (HR 1.33, 95%CI 1.29, 1.36), but not of ischemic stroke (HR 0.96, 95%CI 0.92, 1.00), compared to those not with polypharmacy (Table). Polypharmacy status did not consistently modify the effectiveness of oral anticoagulants. However, rhythm control (vs. rate control) was more effective in preventing heart failure hospitalization in patients not with polypharmacy (HR 0.87, 95%CI 0.76, 0.99) than among those with polypharmacy (HR 0.98, 95%CI 0.91, 1.07, p for interaction = 0.02). Conclusion: Polypharmacy is frequent among elderly patients with AF, associated with adverse outcomes, and potentially affecting the effectiveness of AF treatments. Optimizing management of polypharmacy in elderly AF patients may lead to improved outcomes.


ASJ. ◽  
2020 ◽  
Vol 3 (41) ◽  
pp. 8-10
Author(s):  
L. Hazarapetyan ◽  
S. Grigoryan ◽  
A. Sarksyan

Introduction: Atrial fibrillation (AF) is associated with prothrombotic or hypercoagulable states, various inflammation markers such as interleukin-6 (IL-6) and hsC-reactive protein (hsCRP) have also been associated with AF. The aim of this study is to investigate the relationship between inflammation markers and the prothrombotic state in the setting of AF and the impact on outcome in patients with AF. Methods: We observed 141 patients with non-valvular AF. As a control group patients similar in gender and age without AF were examined. Clinical, instrumental and laboratory tests were performed on the observed patients. The markers of the coagulation cascade (TF and F) and of inflammatory markers (hsCRP and IL-6) were studied additionally by ELISA on the analyzer "Stat Fax 303 Plus". Studies were conducted using SPSS 13.0 and EXCEL-2013. Results: The obtained results showed that compared to the control group, AF patients had significantly higher levels of IL-6 (p = 0.043), hsCRP (p = 0.002), TF (p = 0.026), and F (p = 0.025). Moreover, levels of hsCRP were higher among AF patients at "high" risk of stroke by CHA2DS2-VASc Score (p = 0.003). Besides, the levels of hsCRP and IL-6 were markedly elevated in patients with dilated left atrium (p = 0.001), poorly functioning left atrial appendage (p = 0.023) and longer duration of AF (p = 0.002). Conclusion: We have demonstrated that the increased plasma levels of IL-6 and hsCRP are related to indices of the coagulation cascade and contribute to structural atrial remodeling in patients with AF.


2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Chan Soon Park ◽  
Eue-Keun Choi ◽  
Bongseong Kim ◽  
Kyung-Do Han ◽  
So-Ryoung Lee ◽  
...  

Abstract NTM infection demonstrates an increasing incidence and prevalence. We studied the impact of NTM in cardiovascular events. Using the Korean nationwide database, we included newly diagnosed 1,730 NTM patients between 2005 and 2008 and followed up for new-onset atrial fibrillation (AF), myocardial infarction (MI), heart failure (HF), ischemic stroke (IS), and death. Covariates-matched non-NTM subjects (1:5, n = 8,650) were selected and analyzed. Also, NTM infection was classified into indolent or progressive NTM for risk stratification. During 4.16 ± 1.15 years of the follow-up period, AF, MI, HF, IS, and death were newly diagnosed in 87, 125, 121, 162, and 468 patients. In multivariate analysis, NTM group showed an increased risk of AF (hazard ratio [HR] 2.307, 95% confidence interval [CI] 1.560–3.412) and all-cause death (HR 1.751, 95% CI 1.412–2.172) compared to non-NTM subjects, whereas no significant difference in MI (HR 0.868, 95% CI 0.461–1.634), HF (HR 1.259, 95% CI 0.896–2.016), and IS (HR 1.429, 95% CI 0.981–2.080). After stratification, 1,730 NTM patients were stratified into 1,375 (79.5%) indolent NTM group and 355 (20.5%) progressive NTM group. Progressive NTM showed an increased risk of AF and mortality than indolent NTM group. Screening for AF and IS prevention would be appropriate in these high-risk patients.


Author(s):  
Ilaria Spoletini ◽  
Andrew Coats

Patients with heart failure (HF) often develop ventricular and supraventricular arrhythmias, due in large part to electrical conduction abnormalities of the heart in this syndrome. Cardiac remodeling and neurohumoral activation typical of HF create a substrate that increases the risk of developing arrhythmias and/or worsening pre- existing arrhythmias. Advances in our understanding of the underlying pathophysiological mechanisms of HF have reinforced the importance of neurohumoral, mechanical and inflammatory processes as progressively more severe pump dysfunction occurs. This combination increases the likelihood of arrhythmias, both atrial and ventricular, such that ventricular arrhythmias are found in up to 80% of patients with severe HF, conferring additional risk of mortality and morbidity, in particular via an increased risk of sudden cardiac death. Arrhythmias are also responsible for an increased risk of rehospitalisation in one-third of HF patients. The high risk of arrhythmias should always be considered during the clinical management of all HF patients, due their association with worse prognosis and increased mortality. In particular, HF and atrial fibrillation mutually worsen the impact of each other. Treatment of atrial fibrillation in the setting of HF includes a variety of approaches such as drugs, devices and ablation. Restoration of sinus rhythm is not superior to optimal rate control, and the deleterious effects of antiarrhythmic drugs should be considered. Finally, cardiac function, symptoms, and quality of life may improve with catheter-based ablative therapies in appropriately selected patients with HF.


2020 ◽  
Vol 28 ◽  
Author(s):  
Valeria Visco ◽  
Germano Junior Ferruzzi ◽  
Federico Nicastro ◽  
Nicola Virtuoso ◽  
Albino Carrizzo ◽  
...  

Background: In the real world, medical practice is changing hand in hand with the development of new Artificial Intelligence (AI) systems and problems from different areas have been successfully solved using AI algorithms. Specifically, the use of AI techniques in setting up or building precision medicine is significant in terms of the accuracy of disease discovery and tailored treatment. Moreover, with the use of technology, clinical personnel can deliver a very much efficient healthcare service. Objective: This article reviews AI state-of-the-art in cardiovascular disease management, focusing on diagnostic and therapeutic improvements. Methods: To that end, we conducted a detailed PubMed search on AI application from distinct areas of cardiology: heart failure, arterial hypertension, atrial fibrillation, syncope and cardiovascular rehabilitation. Particularly, to assess the impact of these technologies in clinical decision-making, this research considers technical and medical aspects. Results: On one hand, some devices in heart failure, atrial fibrillation and cardiac rehabilitation represent an inexpensive, not invasive or not very invasive approach to long-term surveillance and management in these areas. On the other hand, the availability of large datasets (big data) is a useful tool to predict the development and outcome of many cardiovascular diseases. In summary, with this new guided therapy, the physician can supply prompt, individualised, and tailored treatment and the patients feel safe as they are continuously monitored, with a significant psychological effect. Conclusion: Soon, tailored patient care via telemonitoring can improve the clinical practice because AI-based systems support cardiologists in daily medical activities, improving disease detection and treatment. However, the physician-patient relationship remains a pivotal step.


2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Amy Groenewegen ◽  
Victor W. Zwartkruis ◽  
Betül Cekic ◽  
Rudolf. A. de Boer ◽  
Michiel Rienstra ◽  
...  

Abstract Background Diabetes has strongly been linked to atrial fibrillation, ischaemic heart disease and heart failure. The epidemiology of these cardiovascular diseases is changing, however, due to changes in prevalence of obesity-related conditions and preventive measures. Recent population studies on incidence of atrial fibrillation, ischaemic heart disease and heart failure in patients with diabetes are needed. Methods A dynamic longitudinal cohort study was performed using primary care databases of the Julius General Practitioners’ Network. Diabetes status was determined at baseline (1 January 2014 or upon entering the cohort) and participants were followed-up for atrial fibrillation, ischaemic heart disease and heart failure until 1 February 2019. Age and sex-specific incidence and incidence rate ratios were calculated. Results Mean follow-up was 4.2 years, 12,168 patients were included in the diabetes group, and 130,143 individuals in the background group. Incidence rate ratios, adjusted for age and sex, were 1.17 (95% confidence interval 1.06–1.30) for atrial fibrillation, 1.66 (1.55–1.83) for ischaemic heart disease, and 2.36 (2.10–2.64) for heart failure. Overall, incidence rate ratios were highest in the younger age categories, converging thereafter. Conclusion There is a clear association between diabetes and incidence of the major chronic progressive heart diseases, notably with heart failure with a more than twice increased risk.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
So-Ryoung Lee ◽  
Kyung-Do Han ◽  
Eue-Keun Choi ◽  
Seil Oh ◽  
Gregory Y. H. Lip

AbstractWe evaluated the association between nonalcoholic fatty liver disease (NAFLD) and incident atrial fibrillation (AF) and analyzed the impact of NAFLD on AF risk in relation to body mass index (BMI). A total of 8,048,055 subjects without significant liver disease who were available fatty liver index (FLI) values were included. Subjects were categorized into 3 groups based on FLI: < 30, 30 to < 60, and ≥ 60. During a median 8-year of follow-up, 534,442 subjects were newly diagnosed as AF (8.27 per 1000 person-years). Higher FLI was associated with an increased risk of AF (hazard ratio [HR] 1.053, 95% confidence interval [CI] 1.046–1.060 in 30 ≤ FLI < 60, and HR 1.115, 95% CI 1.106–1.125 in FLI ≥ 60). In underweight subjects (BMI < 18.5 kg/m2), higher FLI raised the risk of AF (by 1.6-fold in 30 ≤ FLI < 60 and by twofold in FLI ≥ 60). In normal- and overweight subjects, higher FLI was associated with an increased risk of AF, but the HRs were attenuated. In obese subjects, higher FLI was not associated with higher risk of AF. NAFLD as assessed by FLI was independently associated with an increased risk of AF in nonobese subjects with BMI < 25 kg/m2. The impact of NAFLD on AF risk was accentuated in lean subjects with underweight.


Open Heart ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. e001425
Author(s):  
Marc Meller Søndergaard ◽  
Johannes Riis ◽  
Karoline Willum Bodker ◽  
Steen Møller Hansen ◽  
Jesper Nielsen ◽  
...  

AimLeft bundle branch block (LBBB) is associated with an increased risk of heart failure (HF). We assessed the impact of common ECG parameters on this association using large-scale data.Methods and resultsUsing ECGs recorded in a large primary care population from 2001 to 2011, we identified HF-naive patients with a first-time LBBB ECG. We obtained information on sex, age, emigration, medication, diseases and death from Danish registries. We investigated the association between the PR interval, QRS duration, and heart rate and the risk of HF over a 2-year follow-up period using Cox regression analysis.Of 2471 included patients with LBBB, 464 (18.8%) developed HF during follow-up. A significant interaction was found between QRS duration and heart rate (p<0.01), and the analyses were stratified on these parameters. Using a QRS duration <150 ms and a heart rate <70 beats per minute (bpm) as the reference, all groups were statistically significantly associated with the development of HF. Patients with a QRS duration ≥150 ms and heart rate ≥70 bpm had the highest risk of developing HF (HR 3.17 (95% CI 2.41 to 4.18, p<0.001). There was no association between the PR interval and HF after adjustment.ConclusionProlonged QRS duration and higher heart rate were associated with increased risk of HF among primary care patients with LBBB, while no association was observed with PR interval. Patients with LBBB with both a prolonged QRS duration (≥150 ms) and higher heart rate (≥70 bpm) have the highest risk of developing HF.


2004 ◽  
Vol 10 (4) ◽  
pp. S110
Author(s):  
Lynn G. Tarkington ◽  
Salvatore L. Battaglia ◽  
April W. Simon ◽  
Steven D. Culler ◽  
Edmund R. Becker ◽  
...  

Heart ◽  
2017 ◽  
Vol 104 (6) ◽  
pp. 487-493 ◽  
Author(s):  
Ekrem Yasa ◽  
Fabrizio Ricci ◽  
Martin Magnusson ◽  
Richard Sutton ◽  
Sabina Gallina ◽  
...  

ObjectiveTo investigate the relationship of hospital admissions due to unexplained syncope and orthostatic hypotension (OH) with subsequent cardiovascular events and mortality.MethodsWe analysed a population-based prospective cohort of 30 528 middle-aged individuals (age 58±8 years; males, 40%). Adjusted Cox regression models were applied to assess the impact of unexplained syncope/OH hospitalisations on cardiovascular events and mortality, excluding subjects with prevalent cardiovascular disease.ResultsAfter a median follow-up of 15±4 years, 524 (1.7%) and 504 (1.7%) participants were hospitalised for syncope or OH, respectively, yielding 1.2 hospital admissions per 1000 person-years for each diagnosis. Syncope hospitalisations increased with age (HR, per 1 year: 1.07, 95% CI 1.05 to 1.09), higher systolic blood pressure (HR, per 10 mm Hg: 1.06, 95% CI 1.01 to 1.12), antihypertensive treatment (HR: 1.26, 95% CI 1.00 to 1.59), use of diuretics (HR: 1.77, 95% CI 1.31 to 2.38) and prevalent cardiovascular disease (HR: 1.59, 95% CI 1.14 to 2.23), whereas OH hospitalisations increased with age (HR: 1.11, 95% CI 1.08 to 1.12) and prevalent diabetes (HR: 1.82, 95% CI 1.23 to 2.70). After exclusion of 1399 patients with prevalent cardiovascular disease, a total of 473/464 patients were hospitalised for unexplained syncope/OH before any cardiovascular event. Hospitalisation for unexplained syncope predicted coronary events (HR: 1.85, 95% CI 1.49 to 2.30), heart failure (HR: 2.24, 95% CI 1.65 to 3.04), atrial fibrillation (HR: 1.84, 95% CI 1.50 to 2.26), aortic valve stenosis (HR: 2.06, 95% CI 1.28 to 3.32), all-cause mortality (HR: 1.22, 95% CI 1.09 to 1.37) and cardiovascular death (HR: 1.72, 95% CI 1.23 to 2.42). OH-hospitalisation predicted stroke (HR: 1.66, 95% CI 1.24 to 2.23), heart failure (HR: 1.78, 95% CI 1.21 to 2.62), atrial fibrillation (HR: 1.89, 95% CI 1.48 to 2.41) and all-cause mortality (HR: 1.14, 95% CI 1.01 to 1.30).ConclusionsPatients discharged with the diagnosis of unexplained syncope or OH show higher incidence of cardiovascular disease and mortality with only partial overlap between these two conditions.


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