View clinical trials related to Death, Sudden, Cardiac.
Filter by:All patients enrolled in the Austrian LifeVest Registry will be retrospectively screened for successfully completed ambulatory or stationary rehabilitation program. Baseline characteristics, complete rehab data, outcomes and follow up data, as well as wearable cardioverter defibrillator(WCD)-derived data will be collected from these patients. Specifically, performance data from the start of the exercise training (ET) will be compared to the end of ET; including type of training, exertion, time and duration will be collected. In addition, WCD recorded data such as automatically and manually recorded ECGs, compliance, and TRENDS data will be collected.
The investigators hypothesize that preventive VT substrate ablation in patients with chronic ICM, previously selected based on imaging criteria (BZC mass) for their likely high arrhythmic risk, is safe and effective in preventing clinical VT events.
Single-channel electrocardiograms (lead I of 12-lead surface ECG; 30 seconds) will be collected from subjects/patients at 11 clinical centers in Germany to train an Artificial Intelligence in the automatic diagnosis of regular and irregular heart rhythms. Heart rhythms of interest are normal sinus rhythm (SR), atrial fibrillation (AF), atrial premature beats (APBs), ventricular premature beats (VPBs), and nonsustained ventricular tachycardia (VT). Per diagnosis, 20,000 ECGs are required, for a total of 100,000 ECGs to be obtained from approximately 10,000 subjects/patients.
Fibrotic tissue is known to be the substrate for the appearance of scar-related reentrant ventricular arrhythmias (VA) in chronic ischemic cardiomyopathy (ICM). Late gadolinium enhancement cardiac magnetic resonance (LGE-CMR) has proven to be a useful technique in the non-invasive characterization of the scarred tissue and the underlying arrhythmogenic substrate. Previous studies identified the presence of significant scarring (> 5% of the left ventricular -LV- mass) is an independent predictor of adverse outcome (all-cause mortality or appropriate ICD discharge for ventricular tachycardia or fibrillation) in patients being considered for implantable cardioverter-defibrillator (ICD) placement. Parallelly, the presence of heterogeneous tissue channels, which correlate with voltage channels after endocardial voltage mapping of the scar, can be more frequently observed in patients suffering from sustained monomorphic ventricular tachycardias (SMVT) than in matched controls for age, sex, infarct location, and left ventricular ejection fraction (LVEF). However, the lack of solid evidence and randomized trials make LVEF still the main decision parameter when assessing suitability for ICD implantation in primary prevention of sudden cardiac death (SCD). In a recent, case-control study, we identified the border zone channel (BZC) mass as the only independent predictor for VT occurrence, after matching for age, sex, LVEF and total scar mass. This BZC mass can be automatically calculated using a commercially available, post-processing imaging platform named ADAS 3D LV (ADAS3D Medical, Barcelona, Spain), with FDA 510(k) Clearance and European Community Mark approval. Thus, CMR-derived BZC mass might be used as an automatically reproducible criterium to reclassify those patients with chronic ICM at highest risk for developing VA/SCD in a relatively short period of approx. 2 years. In the present cohort study, we sought to evaluate the usefulness of the BZC mass measurement to predict the occurrence of VT events in a prospective, multicenter, unselected series of consecutive chronic ischemic patients without previous arrhythmia evidence, irrespectively of their LVEF.
Antipsychotics may be associated to life-threatening arrhythmias and sudden cardiac death. This is the fist study to estimated the arrhythmic burden using long-term monitoring by implantable loop recorder in patients treated with antipsychotics.
This study aims to evaluate the electrophysiological properties of the heart conduction system in patients with (increased risk of) ventricular tachyarrhythmias (VTA) and sudden cardiac arrest, and in a control cohort. The electrophysiological properties will be measured with the relatively new technique ECG-Imaging (ECGI). Moreover, clinical data of subjects will be gathered. By combining the data from the data gathering and the results of ECGI, the investigators hope to increase mechanistic understanding of and risk stratification for VTAs. The investigators aim to be able to identify patients at risk of an arrhythmic event, and aim for better treatment strategies in the future.
The objective of the study is to demonstrate that in post-MI patients with symptomatic heart failure who receive optimal medical therapy for this condition, and with reduced LVEF ≤ 35% but low risk for SCD according to a personalised risk score, optimal medical therapy without ICD implantation (index group) is not inferior to optimal medical therapy with ICD implantation (control group) with respect to all-cause mortality.
The objective of the study is to demonstrate that in post-MI patients with preserved LVEF>35% but high risk for SCD according to a personalised risk score, the implantation of an ICD (index group) is superior to optimal medical therapy (control group) with respect to all-cause mortality.
This study will help to provide better input to state health and education departments to improve the processes for CPR education. This will also help the EP council explore the opportunities to partner with other professional societies and other stake holders that have interest in this topic. Engagement of private-public partnerships for improving overall CPR education.
Emergency medical services (EMS) provide emergency care not only in the urban but also in the remote areas which could be up to 40 minutes from the EMS station. Thus, a cardiac arrest victim in those remote areas has a low likelihood to survive the cardiopulmonary resuscitation. Therefore, we have organized first responders (who are mostly volunteer fire-fighters) in the remote areas and taught them how to perform basic life support (BLS) with use of an automated external defibrillator (AED). In the case of a cardiac arrest the medical dispatcher activates simultaneously the EMS and the first responders, who perform the BLS with the use of an AED before the arrival of EMS. The aim of the study is to analyze and compare the survival of the cardiac arrest victims in remote areas in the time period when the first responders were not organized yet compared to the time period when the first responders were activated to perform BLS.