Active clinical trials for "Atrial Fibrillation"

Patients with documented atrial fibrillation who were referred to our clinic for catheter ablation will undergo standard HPSD ablation and subsequent esophagoscopy. After esophagoscopy patients will be followed up for one month in the form of a telephone follow-up. The primary endpoint of the study assessed by esophagoscopy performed on the day after the index catheter ablaton is the incidence of esophageal thermal lesions. Secondary endpoints include: The size of the esophageal thermal lesions. The severity of esophageal thermal lesions.

The purpose of this study is to describe the characteristics of patients treated with different OATs and whether these characteristics differ between treatments. Furthermore to describe persistence to each OAT and risk of bleeding after initiating each OAT.

Watchman FLX Left Atrial Appendage Closure Device Post Approval Study

The goal of this study is to learn about the patient and provider perceptions, priorities, preferences, and willingness to use/prescribe anticoagulation as a stroke prevention therapy in patients with atrial fibrillation. Qualitative interviews will be performed with atrial fibrillation patients and providers caring for atrial fibrillation patients. The investigators want to understand the factors that influence decision-making about anticoagulation medications, and to gain insight into patients' and providers' knowledge of the risk of stroke and bleeding associated with oral anticoagulation. This feedback will help provide better education to providers caring for patients with atrial fibrillation and better care to patients with atrial fibrillation by developing tools to optimize the appropriate use of oral anticoagulation for patients with atrial fibrillation.

Diagnosis and treatment of sleep apnea with continuous positive airway pressure (CPAP) therapy has been shown to decrease arrhythmia recurrence in patients with AF following ablation. However, patients with AF undergoing ablation are not routinely screened for sleep apnea, despite an estimated sleep apnea prevalence of 25% in the general population, and perhaps higher among patients with AF. Home sleep testing is frequently used for evaluation of sleep apnea.

Investigator-initiated prospective multicentre hospital-based registry to uncover the proportion of self-reported anticoagulation in stroke patients with atrial fibrillation and assessing the proportion of stroke, intracranial bleeding and all-cause death in the short (at 3 months), mid-term (at 12 months) as well as long term (at 24 months) after ischemic stroke or transient ischemic attack in an unselected urban population in Germany. In addition, annual follow-up is planned yearly up to 5 years after enrollment.

The AF is the most common arrhythmia in clinical practice affecting 1-2% of the general population. It is the most common cause of cerebrovascular events (CVE), responsible for 25% of all ischemic strokes and 50% of cardioembolic strokes. The CARMEN-AF registry is planned to be the first registry of non-valvular AF in Mexico with national representation, planning and specific objectives for publications. Follow-up period of two years is planned.

This is a national, multicenter, cross-sectional, observational study within a convenience sample of Internal Medicine departments from 100 hospitals in Spain which agree to participate in the study. This study will be a cross-sectional chart review which will require the collection of data from medical records and from face-to-face interviews conducted during the inclusion visit. Physician interviews are needed to collect three variables of interest, recommended by the Spanish Society of Internal Medicine as necessary data about profile and management of NVAF patients: cognitive deterioration based on the patient's responses, physician's assessment of the patient's life expectancy, and physician's opinion of the antithrombotic treatment previously prescribed. The investigators will only provide their opinion on previously prescribed therapies (i.e. prescribed before F2F). Hospitals to be contacted for the study include those known to participate in observational studies in Spain; the hospitals will therefore not be a random sample of Spanish hospitals.

The primary objective of this study is to evaluate the practice patterns of rivaroxaban usage invenous-thromboembolism (VTE) and non-valvular atrial fibrillation (NVAF) in cancer patients. The secondary objectives are to evaluate outcomes such as recurrent VTE, stroke and bleeding for cancer patients on rivaroxaban.

Several new oral direct anticoagulants have been recently marketed. However, only a few, limited, studies have provided data about the pharmacology of new oral direct anticoagulants in older persons. This study try to better define wether the pharmacology of each of these 3 drugs (dabigatran, rivaroxaban and apixaban) is actually significantly different in very older patients (over 80) and to which extend. The investigators also try to characterize the main determinants (age, weight, renal function, co-morbidities, etc) of the variability observed between individuals in their response to he drugs studied. The method employed is a population pharmacokinetic/pharmacodynamic study.