View clinical trials related to Atrial Fibrillation.
Filter by:Multiple chronic conditions (MCC) are widely recognized as the U.S. public health challenge of the 21st century. These physical and behavioral health conditions take a large toll on those suffering from the diseases, including many who are publicly insured, as well as caregivers and society. While evidence-based integrated care models can improve outcomes for individuals with MCC, such models have not yet been widely implemented. Insurance providers/payers have innovative system features that can be used to deploy these models; however, the investigators do not yet know which of these features can best help to improve outcomes for individuals with MCC in general or high-need subgroups in particular. As a result, patients lack information to make important decisions about their health and health care, and system-level decision makers face ongoing challenges in effectively and efficiently supporting those with MCC. This real-world study will provide useful information about available options for supporting individuals with MCC. Building on existing integrated care efforts, the investigators will enroll N=1,927 (N=265 Phase I and N=1,662 Phase II) adults with MCC at risk for repeated hospitalizations and assess the impact of three payer-led options (e.g. High-Touch, High-Tech, Usual Care) on patient-centered outcomes, namely patient activation in health care, health status, and subsequent re-hospitalization. The investigators will also determine which option works best for whom under what circumstances by gathering information directly from individuals with MCC through self-report questionnaires, health care use data, and interviews.
The objective of CAREBANK study is to establish definitive relationships with human cardiac samples and clinical phenotypes in patients undergoing cardiac procedures. Specifically, the investigators aim at comparing atrial phenotypes from atrial fibrillation patients and controls. The work consists of three broad categories: A) role of atrial cardiomyopathy in atrial fibrillation; B) genetic defects predisposing to atrial fibrillation; and C) the role of inflammation in atrial fibrillation.
Serum uric acid level is a commonly measured biomarker. The association between serum uric acid level and the risk of developing cardiovascular diseases has been observed in some studies, while others showed controversial results. Estimation of this association may help to predict cardiovascular outcomes and may guide new treatment strategies. The hypothesis is that increased serum uric acid level is associated with a range of cardiovascular diseases.
In this study, the investigators identify the optimal AI value for achieving good acute outcomes in PVI. Through the Phase 1 study, the investigators will prospectively analyze data including ablation parameters, AI and acute outcomes of 20 patients performed PVI with conventional ablation strategy (AI-blinded). After Phase 1 study results, optimal target AI value for each predefined PV segment will be determined. Then, by applying optimal AI values derived from the Phase 1 study, the investigators will evaluate the feasibility of the AI-guided procedure and verify the optimal AI value for acute PVI outcomes in the prospectively enrolled patients (n = 30) in the Phase 2 study.
Atrial fibrillation (AF) is the most common cardiac arrhythmia and increases the risk of ischemic stroke 4-5-fold. The prevention of complications is based on oral or antiplatelet anticoagulant treatment. The first choice of anticoagulant therapy (AT) is the vitamin K antagonist (VKA). Contraindication to VKA or poor control of the International Normalized Ratio leads to the administration of direct-acting oral anticoagulants (DOACs). There is a trend towards inadequate AT in non-valvular AF (NVAF) patients. The Objective of the study is evaluate the impact of the implementation of a decision support tool linked to digital clinical history on the adequacy of AT, the incidence of complications and the mortality in patients with NVAF in primary health care of the Catalan Institute of Health (ICS).
After a myocardial infarction (MI), patients discharged home in sinus rhythm may develop AF that is asymptomatic, undetected, and undertreated. Previous studies (CARISMA and ARREST) have demonstrate high rates of new-onset AF recorded on implantable loop recorder (ILR), although the routine implantation of ILRs post-MI remains costly and invasive. The external loop recorder may effectively identify patients with new-onset AF through a validated diagnostic algorithm and targeted monitoring during a high-risk period (immediately after hospital discharge). We will prospectively randomize patients to receive an external loop recorder or standard care, evaluating rates of new-onset AF developing within 30 days after MI.
Currently, there is minimal data on the combination of rivaroxaban and ticagrelor in patients with atrial fibrillation (AF) managed with percutaneous coronary intervention (PCI). Furthermore, there exists significant controversy among physicians in the use of oral anticoagulants in conjunction with antiplatelet therapy in this population. The present recommendation is triple therapy (aspirin + clopidogrel + warfarin), which has been related to major bleeding complications. Previous studies have shown that ticagrelor has been proven to be more effective in reducing the rate of death, new heart attacks, or strokes than the previously recommended drug, clopidogrel, and studies have shown that less bleeding occurs with rivaroxaban than with warfarin. Therefore, it would be ideal to investigate the two potent drugs, ticagrelor and rivaroxaban, in combination in order to gain insight in the management of these high-risk patients. The CAPITAL PCI AF study is a phase 3 Health Canada regulated interventional study involving the use of investigational drugs. It is a non-randomized, open-design study. The investigational team is studying the highly potent drug Ticagrelor, which is prescribed to participants receiving a stent placement, given in combination with Rivaroxaban, an oral anticoagulant recommended for patients with AF. The primary clinical endpoint is a safety outcome measuring bleeding complications in participants with AF treated within one year of the index PCI. The primary efficacy endpoint is measured by the clinical outcomes of death, stroke, non-central nervous system systemic embolism, myocardial infarction, and stent thrombosis within one year of the index PCI.
Cardiovascular diseases are the number 1 cause of death globally and represent a major economic burden on health care systems. The investigators have developed a novel integrated care concept (NICC) which combines telemedicine with intensive support by a call center, an integrated care network including in- and outpatient care providers and guideline therapy for patients with heart failure (HF), atrial fibrillation (AF) or therapy resistant hypertension (TRH). The aim of the study is to show that NICC is preferable over guideline therapy alone. We aim at including approximately 890 patients. Patients could be enrolled either directly at the Care-Center (location: University Hospital of Rostock) or at one of the advanced treatments rooms of the Care-Center (outpatient cardiological specialist practices). The ethics commission's statement of the University of Rostock is available for amendment 2 since 20.08.2019 at the number A2017-0117.
This study evaluates cardiac structure and function differences between healthy endurance trained athletes with atrial fibrillation and healthy age matched endurance trained athletes without atrial fibrillation. It is hypothesized that despite having similar structural adaptations of the heart (due to endurance training), athletes with atrial fibrillation display will impaired heart functional measures compared to endurance athletes without atrial fibrillation.
This prospective non-interventional cohort study investigates the pathophysiology of Atrial Fibrillation Detected After Stroke or transient ischemic attack (AFDAS) by comparing the autonomic function and inflammation between patients with AFDAS, patients with atrial fibrillation (AF) diagnosed before the ischemic event or known AF (KAF), and patients with normal sinus rhythm (NSR) after 14 day of cardiac monitoring following the event onset.