Active clinical trials for "Atrial Fibrillation"

Cardioversion from atrial fibrillation (AF) to sinus rhythm (SR) is performed primarily to improve patient symptoms. However, due to the intermittent nature of AF, patients may have converted to SR prior to elective cardioversion and the recurrence rate of AF after cardioversion can be high. The aims of this study are to assess the rate of spontaneously conversion to SR in patients with AF scheduled for elective cardioversion, as well as the rate of early recurrence of AF after elective cardioversion.

The recurrence of atrial fibrillation(AF) after pulmonary vein ablation with cryoballoon is conducted by many factors . The previous studies found larger left atrial and longer AF duration are tied to higher risk of AF recurrence. The characters of ablation procedure is also of critical importance to durable clinical success such as temperature features and time-to-isolation (TTI). The aim of our study is to develop an tool of recurrence risk evaluation with both pre-procedure and procedure factors.

In this study, the continuous inclusion of atrial fibrillation patients treated by catheter ablation in the Department of Cardiology, Peking University Third Hospital, through the collection of clinical data and outpatient follow-up, to explore the risk factors of atrial fibrillation recurrence after catheter ablation and the influencing factors of major clinical events in atrial fibrillation patients, and further guide the management mode of atrial fibrillation patients.

Atrial fibrillation is the most common sustained cardiac arrhythmia (rhythm abnormality) encountered in clinical practice. It contributes significantly to the risk of cardiac symptoms, hospital admissions, cardiovascular related morbidity and mortality and increased healthcare cost. AF has significant impact on healthcare cost. The major drivers of the cost are hospitalisations, stroke and loss of productivity. Globally AF accounts for less than 1% of all deaths. However, because it co-exists with other conditions, it contributes to worse prognosis compared to persons who do not have AF. New onset AF in HF patients may be associated with particularly poor prognosis. Most of the published data and current knowledge on AF epidemiology are based on studies in Europe and North America. The information obtainable from previous studies in sub-Saharan Africa is limited. Many of the studies were retrospective. There is also paucity of information on burden of AF (both in hospital and community), clinical profile and outcome of AF in Nigeria in particular and Africa in general. The primary objective of this study is to determine the clinical characteristics, outcome as well as cost genetic features of AF in Nigeria. The project will provide information on: i. Hospital and community burden of AF in Nigeria; ii. Clinical features, mode of presentation and risk factors for AF; iii. Provide data on AF related outcomes as well as prognostic factors.

This study will compare vernakalant therapy to amiodarone therapy in the acute management of recent onset atrial fibrillation.

Recent clinical studies have shown that atrial fibrillation (AF) in humans might be sustained by localized sources called "mother rotors" which exhibit persistent, fast, and well organized activity during AF and play an important role in the generation and maintenance of the fibrillatory activity. In this study, investigators aim to identify the electrophysiological characteristics of mother rotors during atrial fibrillation in patients with paroxysmal and persistent AF and to test whether ablation of such patient-specific substrates might improve the acute and long-term success of conventional catheter ablation therapy.

This study is being done to determine if lidocaine, administered during surgery and for 24 hours after surgery can reduce inflammation, thereby reducing the risk of atrial fibrillation and 30 day mortality after surgery. Participants undergoing cardiac surgery will be randomized to receive either lidocaine or placebo.

Atrial fibrillation is a common type of cardiac arrhythmia in clinical practice, affecting millions of people worldwide. Early detection and treatment of atrial fibrillation are crucial in preventing serious complications such as stroke and heart failure. In recent years, with the flourishing development of wearable devices and mobile technology, electrocardiogram (ECG) measurement applications embedded in smartwatches have gradually become a non-invasive and convenient method for heart rate monitoring. However, the accuracy of these devices has not yet been fully determined. This study aims to verify the ECG measurement and atrial fibrillation detection function of the ASUS Blood Pressure Monitor/Oximeter/ECG Monitor. The accuracy of the ECG application in detecting atrial fibrillation and measuring ECG will be evaluated by comparison with standard 12-lead ECGs.

Patients with various cardiac conditions (such as those who experience a heart attack) are increasing in Canada and are in need of appropriate cardiac rehabilitation and care. Many patients do not have access to local in-person cardiac clinics, particularly in rural regions of Canada. A user-friendly digital application with accessible educational resources and recommendations based on the most up to date clinical practice guidelines can help mitigate these issues. VIRTUES is a digital healthcare application that targets 11 modifiable modules as follows: antithrombotic management lipid management rate and rhythm control for atrial fibrillation heart failure care post myocardial infarction care blood sugar management blood pressure management physical activity healthy eating smoking cessation alcohol reduction Of the 11 total modules, the first 7 listed provide recommendations in VIRTUES. The remaining 4 (physical activity, healthy eating, smoking cessation and alcohol reduction) consist of simple referrals to existing recommendations (i.e., for healthy eating and physical exercise) and referrals to existing local programs (i.e., for smoking cessation and alcohol reduction). Thus, in this cohort study, the investigators will test the primary 7 modules with 200 patients per module for approximately one month each in order to obtain feedback on the usability of each module. The investigators will also conduct virtual focus group discussions to obtain open ended feedback on the application. This study will provide valuable feedback, which will be used to improve and adapt the VIRTUES application.

The aim of the study is to estimate the contribution of abdominal imaging by magnetic resonance Imaging (MRI) and abdominal scanner in the detection of subdiaphragmatic infarction associated to the atrial fibrillation in the cerebral infarction.