Active clinical trials for "Atrial Fibrillation"

Objective: To investigate the incidence, clinical characteristics and prognosis of acute ischemic and hemorrhagic cerebrovascular disease secondary to the implantation of cardiovascular implantable electronic devices, so as to provide a basis for subsequent treatment strategies and risk factor stratification. Methods: This study intends to retrospectively collect the incidence and case characteristics of acute cerebral infarction, cerebral embolism, transient ischemic attack and cerebral hemorrhage in CIED patients admitted to the First Affiliated Hospital of Xi 'an Jiaotong University and other centers from January 2012 to September 2022. Then, the incidence of poor prognosis and related factors of patients within 3 months were followed up by telephone to provide a basis for subsequent treatment strategy and risk factor stratification.

The purpose of this research is to prospectively test and validate the utility of Eko artificial intelligence (AI) plus Eko Murmur Analysis Software (EMAS) murmur characterization in algorithm in a real world, point-of-care setting.

Subjects will be recruited and begin the study as they are identified and consent to the study. Recruiting can end when 140 subjects have initiated the study. The study does allow for additional subjects to be recruited if resources allow, leading to approximately 160 subjects. At the approximate midpoint of the study, intermediate data analysis will be performed. Enrollment will continue while this occurs. Upon arrival to the clinic on the day of the study visit, prior to the application of the reference and test devices, skin inspection of the application site will be conducted. The reference ECG device will be applied, and two initial ECGs will be taken. The precordial leads from the reference device will then be removed from the patient and the CPM Device will be applied to the participant's chest as described in the IFU materials supplied with the device (the study team will also have received training on the proper placement of the device prior to the initiation of the study). This device will be worn for the remainder of the clinic visit. On the CRF, the time that the CPM Device is placed on the chest will be denoted. The reference device and the test device will then take 2 additional ECG measurements simultaneously. During ECG measurements involving CPM device, it will be helpful to maintain silence during the entire measurement duration, as it helps the device to gather heart sounds signals without interference. The ECG results will be analyzed by certified medical personnel, where they will be asked to annotate various parameters of the ECGs. The certified medical personnel will then be asked to classify the ECGs and about the strips' clinical usability.

The purpose of the Long term Evaluation of Cardiac Arrhythmias after Transcatheter Aortic Valve Implantation (LOCATE) Registry is to perform long-term ambulatory monitoring of patients with severe aortic stenosis who undergo trans-catheter aortic valve implantation (TAVI) and develop new onset conduction system abnormalities post-procedure that do not require urgent permanent pacemaker (PPM) implantation. The primary objectives of this study are to assess the incidence of late onset heart block necessitating PPM implantation and to evaluate the incidence of new onset atrial fibrillation (AF) following TAVI. This study aims to provide valuable insights into the long-term cardiac health of TAVI patients and inform the development of improved treatment strategies for aortic stenosis patients with conduction system abnormalities.

In a prospective, observational pilot study of patients scheduled for an atrial fibrillation (AF) ablation at the University of Vermont Medical Center the investigators will compare exercise capacity before and four months after AF ablation.

This study aims to evaluate the concept of closed-loop treatment of atrial fibrillation for the optimization of the treatment strategy.

This is a prospective, single-arm study conducted in University Hospital of Split, Department of Cardiology. Patients treated with PFA for symptomatic paroxysmal atrial fibrillation will be asked to participate in the study. An implantable loop recorder (ILR) will be placed immediately after the PFA procedure for rhythm monitoring. Early recurrences will be subsequently divided into very early recurrences (up to 1 month post-procedure) and early recurrences (1-3 months post-procedure). Late recurrences will be defined as those 3 to 12 months post-procedure. Patients will be monitored routinely through follow up visits during which ILR will be interrogated and eventual symptoms will be assessed. Follow-up visits will be scheduled 1, 3, 6, 12 months post-procedure. Median follow-up will be 12 months. Data for the study will be obtained from a loop monitor to assess the arrhythmia burden during follow-up visits in the University Hospital of Split Arrhythmia Clinic.

Atrial fibrillation (AF) often starts with short episodes of rapid irregular heartbeats that are only detected by implanted pacemakers or defibrillators. Usually people don't know that they have these episodes. Over time, these episodes can happen more often and last for longer periods. In some people, the heart eventually remains permanently in a fast irregular rhythm, known as atrial fibrillation. This condition can lead to strokes and blood clots. If physicians could detect atrial fibrillation at a very early stage they could treat people early and possibly prevent the condition from becoming permanent. People with implanted devices allow a unique opportunity to constantly monitor the heart rhythm so investigators can detect any irregularities immediately. Investigators don't know which people are at risk of developing short episodes of fast irregular heartbeats that can lead to atrial fibrillation. The purpose of this study is to find out if there are proteins or chemical changes in the blood that can predict the risk of developing atrial fibrillation. These chemical changes, also known as biomarkers, may also be able to give investigators other clues about atrial fibrillation.

Atrial fibrillation (AF) is the most common cardiac arrhythmia in the world, with a large consumption of health resources. Telemedicine represents a new model of care, facilitating the individual approach to each patient and reducing costs and complications. This is an an open-label, randomized, multicenter, clinical trial aiming to analyze the use of telemedicine with AF patients in real clinical practice at primary care in terms of efficacy, efficiency, patient perception and professional satisfaction. The intervention will be based on the use of the Ti.Care app as the telemedicine support, in addition to the usual care. The follow-up will be carried out for 12 months.

Demonstrate the safety and performance of the Zenith LAA Occlusion System and procedure to occlude the Left Atrial Appendage (LAA) from the left atrium (LA) using a minimally invasive technique. Indication - LAA closure in patients with non-valvular atrial fibrillation, with an ostial diameter between 17 mm and 25 mm