View clinical trials related to Implantable Defibrillator User.
Filter by:Pilot randomised trial to assess recruitment for a larger trial to compare the efficacy and adverse effects of the subcutaneous and transvenous ICD in patients with hypertrophic cardiomyopathy (HCM) and indication for ICD therapy, with no requirement for pacing
The goal of this clinical trial is to demonstrate that the OPTIMIZER® Integra CCM-D System (the "CCM-D System") can safely and effective convert induced ventricular fibrillation (VF) and spontaneous ventricular tachycardia and/or ventricular fibrillation (VT/VF) episodes in subjects with Stage C or D heart failure who remain symptomatic despite being on guideline-directed medical therapy (GDMT), are not indicated for cardiac resynchronization therapy (CRT), and have heart failure with reduced left ventricular ejection fraction (LVEF ≤40%). Eligible subjects will be implanted with the CCM-D System. A subset of subjects will be induced into ventricular fibrillation "on the table" in the implant procedure room. During the follow-up period, inappropriate shock rate and device-related complications will be evaluated. The follow-up period is expected to last at least two years.
Ventricular tachycardia (VT) is a life-threatening cardiac rhythm disturbance which leads to sudden cardiac death (SCD), ventricular fibrillation, electrical storm, hemodynamic collapse, and syncope. VT patients with cardiomyopathy (diseased/scarred cardiac muscle) have the highest risk of SCD (<1-4%) and recurrent VTs (15-35%). Although an implantable cardiac defibrillator (ICD) is the most effective treatment option to prevent SCD, it does not eliminate it. Without VT prevention, recurrent VT and ICD shocks may increase the risk of heart failure and death. The primary objective is to determine the optimal treatment strategy to maximize event-free survival among cardiomyopathy patients with ventricular tachycardia (VT) by the creation of a prospective, multicenter, longitudinal cohort. Also, the investigators will evaluate the epidemiology of VT, adherence to guidelines, safety, effectiveness, and cost-effectiveness of current treatment options for secondary prevention of VT in the real-world Canadian VT population.
In this study, the investigators evaluated the association between various measures of adiposity [BMI and waist circumference (WC)] and clinical outcomes in Asian patients who underwent Implantable Cardioverter-defibrillator (ICD) insertion, using a nationwide population based cohort.
Implantable cardioverter-defibrillators have been proven to be effective in the prevention of sudden cardiac death in high-risk patients. However, it is well acknowledged that such a strategy could be optimised, especially through new technologies/devices. Data on the entirely sub-cutaneous implantable cardioverter defibrillator (S-ICD) published so far come from high-volume centers and/or selected populations. The HONEST Cohort -taking the opportunity of a unique scenario with a single manufacturer and remote monitoring system available- aims to collect retrospectively baseline information as well as follow-up of all patients implanted with an S-ICD in France since the first implant in October 13, 2012 until December 31, 2019. An extended prospective yearly follow-up will be carried out since January 1, 2020 until December 31, 2024.
Shock testing during ICD generator replacement has been omitted by many centers. A previous study revealed lead failures in internally cardioverted patients with previously normal HV-lead values. The real prevalence of unrecognized "silent" lead failure in ICD patients remains unknown. As a consequence, patients may be equipped with an ICD which is unable to provide life-saving shocks. The proposed registry aims to include patients presenting for ICD generator replacement or electrical cardioversion of atrial arrhythmia. The protocol mandates either a commanded synchronized high energy shock prior to generator replacement or internal cardioversion of atrial arrhythmia to provoke the unmasking of silent lead failure.
This study is a multi-center open-label randomized study, and we sought to investigate the redundancy of post-procedural prophylactic antibiotics in cardiac implantable electronic device implantation. There are 2 arms in this study. One arm will receive pre-procedural intravenous antibiotics only. The other arm will receive both pre-procedural intravenous antibiotics and post-procedural 3-day oral antibiotics.
National french registry of patients with tetralogy of Fallot and implantable cardioverter defibrillator.
This study evaluates whether a rigorously controlled high-normal level of serum-potassium (4.5-5.0 mEq/L) using dietary recommendations, potassium supplements and mineralocorticoid receptor antagonists will results in a lower incidence of cardiac arrhythmias in patients with an ICD. Patients will be randomized to this treatment or a control arm, where patients will receive usual guideline recommended follow-up.
It is universally recognised that current methods for risk stratification of sudden cardiac death (SCD) are limited. A novel SCD risk marker, the Regional Restitution Instability Index (R2I2), measures the degree of heterogeneity in electrical restitution using data obtained from a standard 12 lead ECG acquired during an invasive electrophysiological study. In an ischaemic cardiomyopathy (ICM) cohort of 66 patients, an R2I2 of ≥1.03 identified subjects with a significantly higher risk of ventricular arrhythmia (VA) or death (43%) compared with those with an R2I2 <1.03 (11%) (P=0.004). This study will use non-invasive techniques to acquire electrical restitution data: exercise and pharmacological stress, and will incorporate body surface potential mapping to develop a non-invasive and high-resolution form of R2I2. Suitable patients will be recruited into a prospective, observational study. HYPOTHESES: PRIMARY: 1. R2I2 is predictive of ventricular arrhythmia (VA) / SCD in patients with ICM. 2. The exercise stress protocol will create a dynamic range of heart rates that allows ECG quantification of electrical restitution heterogeneity that correlates with invasive R2I2 and is predictive of VA/SCD. The pharmacological stress protocol will create a dynamic range of heart rates that allows ECG based quantification of electrical restitution heterogeneity that correlates with invasive R2I2 and is predictive of VA/SCD. SECONDARY: 1. A high-resolution electrical map acquired using body surface potential mapping will correlate with R2I2 and these data can be included in the R2I2 calculation to improve its prediction of SCD/VA. 2. Serial measurement of R2I2 will produce consistent values.