Active clinical trials for "Tachycardia, Ventricular"

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 EFFORTLESS ICD Registry is an observational, standard of care evaluation designed to demonstrate the early, mid and long-term clinical effectiveness the Boston Scientific S-ICD System. In addition, analysis of resource utilization and costs will be performed to document treatment costs for periods defined by Registry endpoints. Protocol 90904928 restricts enrolment to patients over 18 years of age while protocol 90904925 allows all patients to be included.

BIOTRONIK Home Monitoring (HM) service enables the doctors to safely follow up (FU) their ICD and CRT-D patients in a remote fashion, with fewer in-clinic consultations. This may result in a more efficient FU and cost-savings for the health care payer. The EuroEco study: Outlines a new HM-based FU model for the ICD and CRT-D patients that combines in-clinic consultations and regular check ups of the patient/ICD/CRT-D data received through the HM service. Compares the direct costs for physicians and clinics for the HM-based FU of ICD and CRT-D patients versus the traditional FU. Compares the indicators of patients' safety between the two FU models.

The purpose of this research study is to evaluate the effectiveness of metoprolol, a "beta blocker," in treating patients in the hospital with a cardiac arrest. It will be given intravenously (given into a vein). The subjects who will take part in this study are 18 years of age or older, are experiencing a cardiac arrest in the hospital, and are in a life threatening situation. Patients who develop a cardiac arrest require prompt electrical defibrillation (electrical shocks) to restore the normal beating rhythm of the heart. In patients who do not respond to electrical defibrillation, current standard of care recommends the use of medications which have been shown to be of unknown benefit. Some people recover from a cardiac arrest, but many people do not. We want to learn whether giving metoprolol will improve survival of patients with a cardiac arrest. A total of 100 patients will be enrolled in the study. Patients will receive either the standard of care with the drug epinephrine or the standard of care plus metoprolol.

The goal of this study is to determine the optimal treatment for patients who receive a single shock from their implantable cardioverter defibrillator (ICD). All participants in this study will be fitted with a special electrode vest to detect the origin of heart rhythm abnormalities and then they will undergo a procedure called Non-Invasive Programmed Stimulation (NIPS). This procedure involves sedating a participants with anesthesia and then using the participant's own ICD to try to stimulate the heart to go into ventricular tachycardia. If this procedure is unable to induce the participant into ventricular tachycardia, then the participant will just be managed with usual care and will not be placed on any additional medications and will not undergo an ablation. However, if the NIPS induces the ventricular tachycardia, the electrode vest will be used to determine the origin of the abnormal heart rhythm inside the heart. After a successful NIPS procedure, the participants will be randomly assigned to either be placed on medication therapy or undergo catheter ablation. The outcomes from all three groups will be compared and the researchers hope to better understand which participants are most likely to benefit from watchful waiting versus medication versus catheter ablation.

The Hearts in Rhythm Organization (HiRO) is a national network of Canadian researchers/clinicians, working towards a better understanding of the rare genetic causes of sudden cardiac death (SCD). Canadian adult and pediatric electrophysiology centres across Canada work together to gather data and bio sample in a national data registry and bio bank hoping to improve the detection and treatment of inherited heart rhythm disorders to prevent sudden death.

Implantable Cardioverter Defibrillators (ICDs) provide a shock or pacing therapy to bring back a normal heart beat when a patient experiences a dangerous abnormal heart rhythm such as ventricular tachycardia (VT). ICDs are very successful in bringing back a normal heart beat when VT occurs, but they do not prevent further dangerous heart rhythms from occurring. This study is designed to determine the best way to manage patients who have an ICD and who continue to have episodes of VT. There are two methods for treatment the VT: 1) Ablation, and 2) Medication. An ablation procedure involves placing a flexible catheter (insulated wire) in the groin area and threading it into the heart. After the doctor has located the affected area responsible for the VT, radiofrequency energy is delivered by the power generator through the catheter to the inside of the heart. The radiofrequency energy ablates (burns) a small area of the heart tissue thought to cause the VT. A medication called Amiodarone is an "anti-arrhythmic" prescribed to prevent abnormal heart rhythms from recurring. The purpose of this study is to compare these two different methods for treating VT. Treatment with ablation and amiodarone are both considered the standard of care for patients with VT but they have not been compared directly in a study like this before.

This is a prospective multi-center international registry. The objective of this registry is to collect prospective data on patients undergoing catheter ablation for Ventricular Tachycardia (VT) and Premature Ventricular Contractions (PVC). The registry will be used for clinical monitoring, research, and quality improvement purposes.

The BERLIN VT study is designed to evaluate the impact of prophylactic ventricular tachycardia (VT) ablation on all-cause mortality and unplanned hospital admission for congestive heart failure or symptomatic ventricular tachycardia/ventricular fibrillation (VF) when compared to VT ablation after the third appropriate implantable cardioverter-defibrillator (ICD) shock.

Human induced pluripotent stem cells (hiPSCs) have driven a paradigm shift in the modeling of human disease; the ability to reprogram patient-specific cells holds the promise of an enhanced understanding of disease mechanisms and phenotypic variability, with applications in personalized predictive pharmacology/toxicology, cell therapy and regenerative medicine. This research will collect blood or skin biopsies from patients and healthy controls for the purpose of generating cell and tissue models of Mendelian heritable forms of heart disease focusing on cardiomyopathies, channelopathies and neuromuscular diseases. Cardiomyocytes derived from hiPSCs will provide a ready source of disease specific cells to study pathogenesis and therapeutics.