Active clinical trials for "Arrhythmias, Cardiac"

Unlike phones, which are commonly held to the ear, music is now available via portable MP3 players and they can be held almost anywhere. Thaker et al state that Apple iPods cause pacemaker interference in 50% of their patients, with over-sensing in 20% of patients, telemetry interference in 29% of patients and pacemaker inhibition in 1.2% of patients. The mean age for their sample was 76.1 years +/- 8.6 years. We anticipate that a higher proportion of teenagers and children who have pacemakers use portable MP3 players than in the elderly adult population.We will include the first 100 patients with pacemakers and ICDs who consent for the prospective observational study a single tertiary care center. We intend to conduct a descriptive study, tabulating the number of times that a pacemaker or ICD has changes in the sensing thresholds, pacing thresholds, telemetry interference or pacemaker inhibition when exposed to a series of portable MP3 players at various distances. In addition, we will describe the nature and quantitative differences of those changes.

The purpose of this study is to assess the long-term effects of catheter ablation procedures performed at the OU Medical Center.

Implantable cardioverter-defibrillator (ICD) therapy reduces mortality in patients with chronic heart failure and reduced left ventricular ejection fraction (LVEF) <36%. Nevertheless, patient selection for ICD therapy based on LVEF and NYHA functional class alone seems to have a low specificity and sensitivity: In 100 patients treated, the SCD-HeFT study prevented 7 deaths in 5 years. Therefore 93 patients have a risk of adverse effects, such as operation risk, infection, pneumothorax, lead dislocation, and inadequate icd therapy. On the other hand, patients with advanced or end stage heart failure might rather die off progressive heart failure death and thus not benefit from ICD therapy. It therefore seems appropriate and necessary to improve the individualized risk stratification in these patients. The aim of this study is to evaluate multiple cardiac biomarkers in a model predicting ventricular arrhythmias in patients on ICD therapy.

Assess whether serum levels of MMP 2 and or MMP 9 correlate with episodes of ventricular tachycardia or fibrillation in patients who have implantable cardioverter defibrillator devices.

To investigate factors which trigger the discharge of implantable cardioverter-defibrillators (ICDs).

The objective of the study is to assess the impact of remote cardiac and vital sign monitoring in patients with coronavirus disease (COVID-19) in the outpatient setting.

A retrospective, multi-center, proof-of-concept study to evaluate the use of remote monitoring in rural emergency departments to decrease time to treatment decision for pacemaker and defibrillator patients using the St Jude Medical Merlin@home transmitter. The purpose of the study is to determine if utilization of remote monitoring technology in a rural emergency department may improve patient care. Up to 10 rural ED sites will enroll a total of 200 patients. One hundred patients will be in the remote monitoring group comprised of patients with SJM devices compatible with the unpaired transmitter and 100 patients will be in the usual medical care group comprised of patients with SJM devices that are not compatible with the unpaired transmitter or that have a competitor's device.

The researchers are trying to determine whether the Alivecor device can simulate other electrocardiogram (ECG) leads to record electrical activity.

The purpose of the KODEX EPD Field study is to evaluate the performance of the KODEX-EPD system and collect procedural data and medical images for Philips' internal research and development activities (R&D) related to the KODEX-EPD system, as well as for marketing and publication purposes. The KODEX-EPD system is an imaging system that will allow for real time visualization of the catheters in your heart during your procedure, as well as display cardiac images of your heart in several different formats.

The purpose of this study is to investigate non-linear heart rate variability indexes as predictors of the incidence of cardiac arrhythmias in patients undergoing cardiac surgery, including coronary artery bypass graft (CABG) and valvular surgery.