Active clinical trials for "Ventricular Fibrillation"

The purpose of the Registry is to collect data on how Implantable Cardioverter Defibrillator (ICD) therapies and medications are being used by physicians to treat ventricular arrhythmias in order to better understand how to improve the clinical care of patients and effectiveness of ICD therapies.

To investigate a potential relationship between four different classes of non-cardiovascular drugs and the risk of sudden cardiac death.

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.

METHODS: Subjects: All internal medicine (IM), emergency medicine (EM), anesthesia (A), surgery (S) residents and all hospital ICU nurses (approximately 400 subjects) will be undergoing evaluation and training in CPR techniques according to their department training policy. Study Assessment Tool: An objective assessment tool has been developed and tested in medical code scenarios during training sessions recently done in the simulation lab. The tool has five domains: Airway, Breathing, Circulation, Communications/Leadership, and Defibrillation. Each domain consists of 3-8 tasks and skills (attachment A). Design: Phase I: In groups of five to six subjects, residents and nurses will undergo baseline assessment in CPR techniques in the simulation lab. Subject will be presented with a clinical scenario that includes cardiopulmonary arrest. Subjects will be scored by observers based on the previously described assessment tool and will be video recorded. Phase II: All study subjects who completed phase I assessment will undergo standardized debriefing and demonstration of proper CPR techniques after reviewing their individual baseline videotape followed by repeated demonstration in CPR techniques during a clinical scenario with cardiopulmonary arrest in the simulation lab. Knowledge retention will be assessed periodically. Phase III: Rates of survival to hospital discharge and survival at 24 hours in hospitalized patients after cardiopulmonary arrest collected by the CPR committee and QA department longitudinally for one year after completion of project training (phase II) will be reviewed and compared to the same period one year earlier (CPR outcome data are being collected since 2005 at St. Luke's-Roosevelt Hospitals).

The purpose of the study is to proof the safety and efficacy of the new ICD sytem (Iforia/Ilesto). The devices are available with DF-1 and DF4 connection. A special focus is set on the ICD system with DF4 connection.

Mild therapeutic hypothermia is indicated in patients surviving out-of-hospital cardiac arrest due to ventricular fibrillation. Potential immunologic responses are unknown.

This is a multi-center prospective registry of patients with an ejection fraction (EF) ≤ 35% following coronary artery bypass graft (CABG) surgery in order to test the hypothesis that wearable defibrillators (WD) will decrease overall mortality after discharge by decreasing arrhythmic death in this select population with high risk for sudden cardiac death (SCD). This is a pilot project to determine the feasibility of a larger-scale study.

This is a prospective study to evaluating the ability of the PD2i Cardiac Analyzer to predict the risk of serious heart rhythm abnormalities in high-risk patients that do not already have an Implantable Cardioverter Defibrillator.

The purpose of this study is to determine how the position of the right ventricular (RV) coil of an implantable cardioverter defibrillator (apex versus septum) affects the defibrillation threshold; specifically, can defibrillator threshold be improved by implantation site selection.

To generate a list of potential genetic markers that correlate with an increased risk of life-threatening arrhythmias. To evaluate ECG-based risk markers such as heart rate variability and T-wave Alternans for their association with arrhythmic events.