View clinical trials related to Tachycardia.
Filter by:The objective of this study is to gather data to establish the chronic safety, performance and effectiveness of the RELIANCE 4-FRONT™ Active Fixation Defibrillation Leads.
This study is to determine different chemical levels in the blood during a low salt diet. This study will compare normal volunteers to those with Postural Tachycardia Syndrome (POTS)
SCORE is an active, prospective, non-randomized, multi-center outcome-oriented registry of patients implanted with St Jude Medical (SJM) market-released cardiac rhythm management (CRM) products. This registry will be conducted in the United States (US). The primary purpose of the registry is to evaluate and publish acute and long-term performance of market-released SJM CRM products by analyzing product survival probabilities. Product status and any related adverse events will be collected to measure survival probabilities.
The objective of this trial is to determine the efficacy and safety of adjunctive catheter-based renal sympathetic denervation (RSDN) in the primary prevention of implantable cardioverter defibrillator (ICD) therapy in patients with ischemic or non-ischemic ventricular dysfunction, who are to receive an ICD for either i) secondary prevention, or ii) primary prevention + inducible ventricular tachycardia (VT) by programmed ventricular stimulation at the time of ICD implantation. These patients will be randomized to ICD alone or ICD + RSDN.
Ventricular tachycardia (VT) is a life-threatening, fast heart rhythm that starts in the lower chambers of the heart (the ventricles). This fast heartbeat is caused by abnormal electrical pathways located in the heart tissue. A standard procedure called a catheter ablation has been used for several years to help correct these abnormal pathways and, in some cases, improve or even eliminate the ventricular tachycardia. During a VT ablation it is routine to monitor your vital signs (blood pressure, heart rate, and oxygen saturation in your blood). If you choose to participate in this study we will also monitor your cerebral oximetry, the amount of blood flow and oxygen saturation to your brain during the ablation. By doing this study, we hope to have a better understanding of patients' blood and oxygen flow to their brain during an episode of Ventricular Tachycardia (VT).
In this study, we are comparing the difference in outcomes between patients who were given shocks to the heart, during the upstroke of cardiopulmonary resuscitation (CPR) and before CPR is started. The study population will be all cardiac arrest patients attended by the staff of the Emergency Department who fulfil the eligibility criteria. Patients will be managed according to currently approved cardiac arrest protocols. Patients confirmed in cardiac arrest have manual chest compressions started while mechanical CPR (whereby chest compressions are delivered by an automated device) is prepared. Mechanical CPR should be started as soon as possible (<1 minute). If patients are eligible to be shocked, they will receive shocks either during upstroke of CPR or before CPR is started. Thus the purpose of this study is to answer the question whether are there improvement in survival between when shocks are given during upstroke and before CPR is started.
The aim of this study is to prospectively compare the effectiveness and safety of ivabradine and beta-blockers in the treatment of inappropriate sinus tachycardia.
PSVT is a common rhythm disorder in emergency department which can be recurrent in some cases. Intravenous Adenosine is the drug of choice in PSVT control in acute settings but is a very short acting agent. Providing a complementary medication to decrease the rate of recurrence of PSVT after its initial control will be promising. This study evaluates the role of the oral Verapamil in recurrence control of PSVT in emergency situations.
The purpose of this study is to evaluate long-term performance of the DF4 Connector System. This evaluation is based on the number of DF4 lead-related complications occurring during the study compared to the number of leads enrolled in the study. The DF4 systems will be followed for 5 years after implant. This study is required by FDA as a condition of approval of the DF4 Connector Systems. This study is conducted within Medtronic's post-market surveillance platform.
The purpose of this study is to evaluate feasibility of using new technologies to characterize ventricular wall motion in patients indicated for mapping and ablation procedures. Echo will be performed preoperatively and patients will receive a 1-month followup telephone call.