View clinical trials related to Arrhythmias.
Filter by:The objective is to demonstrate feasibility of new 'Magnetic Primary' catheter tracking algorithms within the Velocity Research Platform (VRP) by assessing the frequency of shift/drift during ablation compared to the current commercial EnSite Precision 2.0.1 The secondary objective is to evaluate catheter rendering in the VRP system.
Background: Arrhythmia recognition is a fundamental skill for the provider of advanced life support (ALS). Acquire it is difficult, leading to the birth of systematic methods in an attempt to simplify and optimize, however, it has not compared the effectiveness among the three methods with more evidence among professionals with varying degrees of medical training (ALS Workshop participants). Objective: To determine and compare the effectiveness of the three most widespread and with more evidence systematic methods (10, 6 and 4 steps) for the recognition of arrhythmias in a short-term and its perceived easiness among ALS workshop participants. Methods / design: Educational Cuasi experimental trial with pre and post intervention measurement, blind, with randomized allocation, in 84 ALS workshop participants. Three systematic methods to recognize arrhythmias will be taught and their effectiveness to diagnose in a short-term and its perceived easiness will be measured and compared.
People that have survived, or are at high risk of a lifethreatening ventricular arrhythmia are routinely offered a defibrillator (ICD). An ICD is an implanted device which can recognise a ventricular arrhythmia and then try to treat it, either by rapidly pacing the heart or by shocking the heart. Currently, very fast ventricular arrhythmias, known as VF, can only be treated with a shock. Patients find shocks painful and this study is intended to find out whether it is possible to pace the heart at very high rates during VF. It is hoped that if this is possible, further research could lead to effective treatment of VF with pacing rather than shocks, and therefore better outcomes for patients.
The purpose of this study is to determine the safety on sauna followed by cold water bath, a common practice in many countries, 30 healthy subjects aged 40 years and older will be at the Montreal Heart Institute Prevention and Cardiac Rehabilitation centre.
The primary purpose of this trial is to demonstrate that the utilization of CartoFinder™ 4D Local Activation Time (LAT) Algorithm may help identify and improve the outcome for the treatment of complex arrhythmias.
The primary purpose of the First-In-Man clinical investigation is to assess the Picasso NAV Catheter's ability to collect intracardiac signals within the desired chambers (atrial and/or ventricle) in the heart for the analysis of complex arrhythmias.
The purpose of the study is to compare, three months after implantable cardioverter-defibrillator (ICD) or cardiac resynchronization therapy-defibrillator (CRT-D), the apnea-hypopnea index (AHI) obtained from conventional in-lab NPSG/NPG (AHIPSG) with similar indices obtained from autoscoring algorithms of the ApneaScan™, an implantable impedance-based respiration sensor (AHIAS).
Arrhythmias remain a major health problem, causing at least 250,000 deaths annually in the United States. Pharmacological treatments often do more harm than good, and device therapies are limited by high cost and effects on quality of life. Ion channel mutations cause rare inherited arrhythmopathies, but account for only a small fraction of patients with life- threatening arrhythmias and sudden death. Most arrhythmias occur during myocardial ischemia, following myocardial infarction, and in patients with poor left ventricular (LV) function of any etiology. Aside from ejection fraction (EF), few clinically useful indicators to stratify the risk of sudden death have been identified. The role of subtle difference in ion channel expression and/or structure in predisposing patients to arrhythmias and modulating the risk of sudden death is unknown. In this study, we are prospectively testing whether polymorphisms in ion channels and ion channel modifying genes are associated with arrhythmias in a population with internal cardioverter-defibrillators (ICDs) and poor LV function. We will test the hypothesis that functional polymorphisms in the coding sequences and promoter regions of cardiac genes (e.g. ion channels, beta-adrenergic receptors) predispose individuals to arrhythmias and /or heart failure progression. We hope to identify genetic predictors for the common forms of sudden cardiac death. This would allow the identification of a subpopulation of heart failure patients that would benefit most from ICD placement.
An infants heart rate is very important because it ensures that blood is pumped to all organs in the body. Heart rate may decrease during anesthesia and surgery, and this is why the anesthesiologist will often give a medication to prevent this from happening. The most common drug for this purpose is called atropine. The dose of most drugs given to babies is based upon the baby's weight, but some believe that the dose of atropine should not be less than 0.1mg. However there is no evidence to support this minimum dose. A larger dose of atropine may cause a very fast heart rate instead. Anesthesiologists routinely dose the atropine based upon the baby's weight without regard for a minimum dose. The purpose of the present study is to measure the heart rate after doses of atropine in neonates and infants who receive less than 0.1 mg.
Morbidity frequency associated to a endotracheal suctioning is different between a necessity endotracheal suctioning protocol versus a routine endotracheal protocol.