Active clinical trials for "Arrhythmias, Cardiac"

There are many reports about the association of coronary artery disease (CAD) and cerebral artery stenosis (CAS), which had been proved to induce stroke and cognition decline after the revascularization including coronary bypass surgery (CABG) or percutaneous coronary intervention. Perfusion defect on nuclear brain scan is also noted to correlate with these neurological complications. On the other hand, the perioperative arrhythmia and following cerebral embolism was also attributed to be one factor inducing such neurological hazards. In the patients with coexistent CAD and CAS (1st group), and also the patients scheduled for CABG or percutaneous coronary intervention (PCI) (2nd group), we, the researchers at Far Eastern Memorial Hospital, attempted to integrate all the parameters mention above, including angiography of coronary and cerebral system, quantitative analysis of nuclear brain scan, biochemical profile, and signals of a new ambulatory device which could record the electrocardiograph (ECG) and electroencephalograph (EEG) simultaneously, in order to define the correlation between them. A chorological relation between EEG signals and ECG signals is our first target to be worked out. Thereafter, we hope to establish a regression model of all involved parameters according to the relation. Such a model, we believe, is essential not only to explain the post-CABG neurological complications, but to prevent them. Furthermore, for the undetermined ischemic stroke patients who had no obvious culprit artery or embolism source, the paroxysmal arrhythmia had long been regarded as the cause. Whether a paroxysmal atrial fibrillation, which had not been disclosed by routine ECG, could induce most of such a stroke is still not known. With this new ambulatory device which could record the electrocardiograph (ECG) and electroencephalograph (EEG) simultaneously, we want to answer the question.

The overall objective of the DISCERN study is to develop and validate a genomic diagnostic assay to identify patients at increased risk for lethal ventricular arrhythmias and sudden cardiac death (SCD).

The purpose of this study is to assess the incidence of tachy- and bradyarrhythmic episodes in patients with acute myocardial infarction with depressed ventricular function and to determine the predictive value of several invasive and non-invasive risk markers for life-threatening arrhythmia

Aims Approximately 20-25% of strokes are of cardioembolic origin, atrial fibrillation (AF) being a significant cause of cardioembolic strokes. AF is often symptomless and intermittent, making its detection a clinical challenge. Currently the golden standard for diagnosis of AF is by 12-lead electrocardiogram (ECG) or any other ECG-strip. The primary aim of the study is to assess the potential of chest strap as an ECG monitor especially in arrhythmia detection by cardiologist and algorithm. The secondary aim is to assess potential of photoplethysmography (PPG) based device for arrhythmia detection.

This is an open-label study to investigate the functional features of prolonged monitoring by 14-day EZYPRO® to improve the medical care and/or diagnosis for the patient with arrhythmia. Patients will be enrolled by outpatient basis from two clinical study sites. Enrolled patients will wear a traditional 24-hour Holter monitor and an 14-day EZYPRO® which can provide monitoring data for up to 14 days. This study will allow a direct comparison between two devices.

The investigators hypothesise that patients with type 1 diabetes have clinically relevant, but often unrecognised, episodes of arrhythmias linked to episodes of hypoglycaemia and/or clinically significant fluctuations in plasma glucose.

This purpose of this study is to collect ECG data from a wearable cardiac monitor in order to evaluate end-to-end performance of a cardiac monitor system and associated data management accessories.

Previous publications suggest gender difference in outcome parameters after pacemaker implantation. Aim of this study is to investigate gender differences in patients with pacemaker. Implanted devices, indication for implantation and pacemaker follow up data of patients will be included. Survival data including cause of death will be documented. Prevalent comorbidities and relevant laboratory data will be recorded.

This document is a clinical investigation plan (CIP) for the EnSite Precision Observational Study. This clinical study is intended to quantify and characterize the usage of the EnSite Precision™ Cardiac Mapping System (Software version 2.0.1 or higher) in a real-world environment. This study will be conducted in patients who are indicated for a cardiac electrophysiological (EP) mapping and radio frequency ablation procedure using a three-dimensional system.

The purpose of this study is to compare two different types of three-dimensional electroanatomic mapping systems used for the treatment of cardiac arrhythmias. The systems will be compared in regards to its ability to successfully map and ablate a clinical arrhythmia, as well as the time invested in this activity.