View clinical trials related to Atrial Fibrillation.
Filter by:The purpose of this observational study is to identify participants with both minor and major bleeds as a result of anticoagulant treatment for AF and evaluating their QoL through both primary and secondary care settings.
A prospective, multi-center study with the CathVision Cube® system and the PVI Analyzer software in radiofrequency (RF), cryo-balloon (CB), and Pulse Field Ablation (PFA) procedures.
Atrial fibrillation (AF) is the most common arrhythmia worldwide. It carries a significant health burden, conferring on sufferers a reduction in quality of life, risk of significant morbidities such as stroke and heart failure, and significant mortality. At present, diagnosis of AF involves referral for conventional 12 lead electrocardiogram (ECG) recording, ambulatory ECG for fixed time period recording, or insertion of implantable loop recorders (ILR). These investigations are limited both by recording only at specific time points and failing to explore the interaction between heart rate and day-to-day physical activity. In recent years, the use of mobile health (mHealth) devices has emerged as a direct-to-consumer option for monitoring parameters such as heart rate and activity levels. From a clinical perspective they potentially offer a less invasive and cost-effective investigative approach, with remote monitoring solution to identify and possibly predict AF. In this study, the investigators propose to recruit participants who have undergone an ablative procedure as part of a randomised clinical trial (LoTO in CASA LSPAF: NCT04280042) and monitor for recurrence of AF using mHealth technology by correlating with ILR data.
The purpose of this observational study is to understand real-world oral anticoagulants (OAC) (warfarin, apixaban, dabigatran, edoxaban and rivaroxaban) usage for non-valvular atrial fibrillation (NVAF) patients.
This is an observational study in which data collected from the past of patients with non-valvular atrial fibrillation (NVAF) is studied. NVAF is a condition in which patients suffer from irregular and often rapid heartbeats which are not caused by a heart valve problem. NVAF can lead to thromboembolism, a condition that happens when a blood clot forms in the body and travels through the blood stream to plug another vessel. To prevent thromboembolism doctors often prescribe a blood thinner medication. In patients with NVAF that receive a blood thinner, it is common that the kidneys' ability to work properly, also called the kidney function, decreases. This may increase the risk of stroke, a condition which occurs when a vessel supplying blood to the brain is blocked and the risk of bleeding. It is therefore important to maintain the kidneys' ability to work properly in these patients who are treated with blood thinners. In the beginning, only one blood thinner that could be given as a tablet by mouth was available. This blood thinner was called warfarin. Over the years, further medications have become available, for example dabigatran or rivaroxaban. There is some evidence that a decrease of the kidney function is more common with warfarin than with dabigatran or rivaroxaban. For other similar new treatments however, evidence is missing or conflicting. There also could be other relevant factors such as the kidney function before the start of treatment or the patient's genes/origin. In this study researchers want to collect more data to compare two different blood thinner medications, rivaroxaban and warfarin. The main goal is to see whether there is a difference between the two treatments regarding the kidneys' ability to work properly. To find this out, the researchers will compare the number of patients in each group who developed chronic kidney disease stage 5 (close to or corresponding to chronic kidney failure), had a kidney transplant or needed to undergo long term dialysis. In addition, data is collected and compared about the patients' age, gender, weight, height and whether they had other related medical problems. This study will collect information from the health records from the Korean National Health Insurance Corporation (NHIC) database. Besides this data collection, no further tests or examinations are planned in this study. Researchers will look at the health information from adult men and women in Korea who were diagnosed with NVAF between January 2013 and December 2017. They will study data of the patients who did not receive any medication with blood thinners in past 24 months before starting rivaroxaban and warfarin treatment between January 2015 and December 2017. They will follow up all the participants until December 2018.
This is a prospective, random controlled trial(RCT) study. 430 patients undergoing coronary artery bypass grafting were enrolled. Our new way of cardiac denervation, defined as excision of Marshall ligament and Waterstone fat pad, was performed in 215 patients, and the other 215 patients were used as control subjects. All the patients need to equip with electronic monitor to record heart rhythms within 6 days after CABG. The investigators will compare the incidence of postoperative atrial fibrillation between two groups, and follow up 30 days after discharged.
The study includes collection of data from patients referred to a therapeutic evaluation in Tays Sydänkeskus Oy (Heart Center Co, Tampere University Hospital) or another unit of Sydänkeskus (hereafter the Heart Hospital) due to suspected cardiac arrhythmia. Data collection takes place outside the hospital in normal daily conditions. The monitoring is started during the outpatient visit at Heart hospital polyclinic or when leaving home from cardiac ward and it continues for 2 days. Reference information about the occurrence of arrhythmia episodes and the reference ECG data are obtained from simultaneously worn Holter device. During the two days the study device and the reference device are worn continuously. Wearing the devices does not affect the daily routines of the participant except there is no possibility to take a shower. The arrhythmia episodes are labelled in post-hoc signal analysis and annotations visually confirmed by a cardiologist. The participants are instructed to take ECG recordings with the wrist device every time the device gives a notification and also whenever the participant feels arrhythmia symptoms. There will be at least four intermittent ECG records taken on each day.
BETAFLEC-CHIOS, is a single-center registry that was initiated in the "Skylitseion" General Hospital of Chios in January 2020 and is ongoing. The inclusion criterion is IV flecainide administration for recent-onset AF lasting less than 48 hours. Oral b-blockers are co-administered in all patients. The main exclusion criteria are severe structural or ischemic heart disease and conduction system dysfunction. Continuous monitoring is applied during and after administration of IV flecainide. If no conversion to sinus rhythm is achieved at 2 hours after flecainide infusion, the patient is recorded as "unsuccessful conversion attempt".
The purpose of this study is to assess the performance and safety for the use of the OPTRELL Catheter for intracardiac mapping in the atria and ventricles.
This study is a sub study of the Pure EP 2.0 trial. In a redo atrial fibrillation population, this study is designed to collect pulmonary vein signals pre and post ablation therapy, along with other non-pulmonary vein signals of interest during a redo ablation procedure. These signals are later evaluated for clinical relevance and impact on the procedure.