Active clinical trials for "Tachycardia, Ventricular"

Nowadays, Sudden Cardiac Death (SCD) due to malignant arrhythmias is an important cause of death among acute myocardial infarction (AMI) survivors. Preventive strategies with implantable cardioverter-defibrillators (ICD) are the best clinical option for patients, but associated sociosanitary impact in the National Health Systems and the fact that current implant strategy not always results in benefits for the patient requires to develop further selection criteria. The TeVeO project aims to study the events that take place early following an AMI to predict the short- and long-term risk of experiencing a potentially lethal ventricular tachycardia (VT). The project will carry out an observational and multicentric study involving 5 different hospitals to: a) qualitative and quantitative characterize non-sustained VTs (NSVT) that take place during the first 6 months after an AMI and b) characterize the evolution of the substrate (scar and surrounding tissue) in patients meeting criteria for ICD implant. Patients included in the study will be implanted with an implantable loop recorder (ILR) in order to register NSVT and cMRI images will be acquired prior to hospital discharge and at 6 months after AMI to study the substrate. Further patients' management will follow the protocols within each entity. Project results will allow us to stratify patients according to identified risks for developing malignant VT, which will improve patient selection for ICD implantation and will contribute to tailor patients' treatment and prevention, improving the cost-effectiveness of these devices and minimizing their associated problems and sociosanitary burden.

This is a randomized, prospective clinical trial comparing 2 different types of implantable cardioverter defibrillator (ICD) leads in children and patients with congenital heart disease. ICD lead survival in this patient group is particularly suboptimal, and lead extraction is technically difficult and carries a substantial morbidity risk. Recently, improved ICD lead designs have been released and are currently being utilized in patients. The main aim of the study is to determine if either type of lead performs better in terms of implantation electrical characteristics, long-term survival without breaking, and ease of extractability.

This is a prospective, non-randomized study to determine the feasibility of using a new technique called Dynamic Substrate Mapping (DSM) to help guide the treatment of ischemic ventricular tachycardia (IVT). We hypothesize that DSM will lead to simpler, more effective ablation of IVT. Results from this study will be used to determine if further clinical investigation is warranted.

The investigators aim to study if patients that undergo catheter ablation for ventricular tachycardia benefit from continuation of Vaughan-Williams class III antiarrhythmic drugs for 3 months after their ablation.

This is a Phase II, single center (Under the Center for Resuscitation Medicine at the University of Minnesota Medical School), partially blinded, prospective, intention to treat, safety and efficacy clinical trial, randomizing adult patients (18-75 years old) with refractory ventricular fibrillation/pulseless ventricular tachycardia (VF/VT) out-of hospital cardiac arrest (OHCA) who are transferred by emergency medical services (EMS) with ongoing mechanical cardiopulmonary resuscitation (CPR) or who are resuscitated to receive one of the 2 local standards of care practiced in our community: 1) Early Extracorporeal Membrane Oxygenation (ECMO) Facilitated Resuscitation or 2) Standard Advanced Cardiac Life Support (ACLS) Resuscitation

The purpose of this study is to determine if early ablation (i.e., ablation of ventricular tachycardia in patients with infrequent VT episodes) is more effective than medical therapy alone for the treatment of ischemic ventricular tachycardia in patients with Implantable Cardioverter Defibrillators (ICDs) who continue to have episodes of ventricular tachycardia despite drug therapy.

The purpose of this pilot trial is to determine the feasibility of a large, multi-center randomized clinical trial aimed to test whether a treatment strategy of percutaneous catheter ablation of ventricular tachycardia (VT) is superior to state-of-the-art pharmacologic therapy at reducing all-cause mortality in patients with an implantable cardioverter defibrillator (ICD) who receive therapy for VT in the absence of any reversible cause.

The study is designed to confirm safety and efficacy of the SD01 ICD (implantable cardioverter-defibrillator) lead.

This registry is designed to gather further evidence, in addition to the SD01 Master Study, for the safety and efficacy of the SD01 ICD lead.

Study hypothesis: With optimal medical therapy and repeated ablations, an additional renal denervation may have protective effects in terms of vegetative intrinsic activity and lead to a significant reduction in VT Burdens. Study design: Multicenter, randomized, prospective, single-blind clinical trial.