Clinical trials: Arrhythmia, Ventricular
Death, Sudden, Cardiac, Ventricular Fibrillation
Failure of Chronically Implanted Defibrillator Leads -Incidence and Management
Comparison of two different approaches to address the problem of malfunctioning ICD-leads. These leads consist of two parts. One that is used for detection of arrhythmias(and pacing if required) (Pace/Sense) and a second part…
- Trial name
- NCT00614718
- Where
- 3 sites in Germany, Switzerland
- Volunteers
- 1,317 people
- Sponsor
- University Hospital, Basel, Switzerland
Ventricular Fibrillation, Ventricular Tachycardia
Left Ventricular Capture Management Study
Primary Objective: To characterize left ventricular (LV) threshold behavior over time using daily left ventricular capture management (LVCM) measurements.
- Conditions
- Ventricular Fibrillation, Ventricular Tachycardia, Bradyarrhythmia
- Trial name
- LEARN (NCT01089634)
- Where
- Canada
- Volunteers
- 151 people
- Sponsor
- Medtronic Cardiac Rhythm and Heart Failure
Long QT Syndrome, Catecholaminergic Polymorphic Ventricular Tachycardia Type 1
Evaluation of Exercise Testing and Physical Activity in Children and Adolescents Living With Inherited Arrhythmias
The goal of this observational study is to evaluate exercise testing and daily physical activity in children and adolescents who are diagnosed with an inherited arrhythmia.
- Conditions
- Long QT Syndrome, Catecholaminergic Polymorphic Ventricular Tachycardia Type 1, Catecholaminergic Polymorphic Ventricular Tachycardia Type 2
- Trial name
- ACTIVELY (NCT06661278)
- Testing
- Exercise tolerance test, Physical activity & heart rate monitoring
- Where
- 2 sites in United Kingdom
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- Royal Brompton & Harefield NHS Foundation Trust
Sudden Cardiac Death
Predictive Risk Stratification Through T Variability in ICD Patients Without Pacing Indications
The aim of the study is to assess the negative predictive value of the T amplitude variance as a method for risk stratification for patients with an increased risk for SCD.
- Trial name
- Prediction (NCT00560768)
- Testing
- Ovatio VR 6250 or DR6550
- Where
- 30 sites in United States, Canada and 2 more
- Volunteers
- 198 people
- Sponsor
- LivaNova
Ventricular Tachyarrhythmia
Change in Heart Rate Variability Prior to Tachyarrhythmia in ICD Implanted Patients
To investigate changes in HRV during the time before a spontaneous episode of ventricular tachyarrhythmia.
- Trial name
- HRV (NCT00701467)
- Where
- Israel
- Volunteers
- 50 people
- Sponsor
- Sheba Medical Center
Ventricular Fibrillation, Cardiac Arrest
SmartCPR Trial: An Analysis of a Waveform-Based Automated External Defibrillation (AED) Algorithm on Survival From Out-of-Hospital Ventricular Fibrillation
This study is designed to examine the impact of an available technology within an automated external defibrillator (AEDs) to improve survival following out-of-hospital cardiac arrest for patients presenting in ventricular…
- Trial name
- SmartCPR (NCT00535106)
- Testing
- Automated external defibrillator (Philips FR2+ AED), SmartCPR, Delayed defibrillation
- Where
- 2 sites in United States, United Kingdom
- Volunteers
- 900 people
- Sponsor
- New York City Fire Department
Sudden Death
The Significance of Arrhythmias in Athletes
Athletes with complex ventricular arrhythmias are potentially at risk of sudden death. The aim of the study is to investigate the relevance of ventricular tachyarrhythmias induced by an exercise test in a retrospectively…
- Trial name
- Athlete (NCT00469794)
- Testing
- stress test
- Where
- Israel
- Volunteers
- 300 people
- Sponsor
- Assaf-Harofeh Medical Center
Left Ventricular Function, Arrhythmia
Impact of Radiofrequency Ablation on Left Ventricular Function in Supraventricular Tachyarrhythmias Patient Using Speckle Tracking Echocardiography
In this study, we aimed to evaluate atrial and ventricular function in supraventricular tachyarrhythmia patients before and 3 months after RFA using 2DSTE.
- Trial name
- NCT05225662
- Testing
- radiofrequency ablation
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Assiut University
Ventricular Arrhythmia
Radiofrequency Ablation of Symptomatic Frequent Ventricular Premature Complexes in Pediatric Population
To evaluate the effectiveness and safety of catheter ablation of frequent symptomatic PVCs in the pediatric population as first-line therapy compared with antiarrhythmic drugs.
- Trial name
- RAS (NCT02772354)
- Testing
- Radiofrequency catheter ablation, Metoprolol, Verapamil
- Where
- 2 sites in Russia
- Volunteers
- 124 people
- Sponsor
- Meshalkin Research Institute of Pathology of Circulation
Heart Failure，Congestive, Left Ventricular Dysfunction
LV Endocardial CRT for Patients With Intermediate QRS Width
This pilot study is designed as a multi-centre cohort study determining the degree of LV reverse remodeling in patients with intermediate QRS widths (120-149ms) who undergo CRT implant with transseptal LV leads, and comparing to…
- Conditions
- Heart Failure，Congestive, Left Ventricular Dysfunction, Left Bundle-Branch Block
- Trial name
- EndoCRT (NCT03573427)
- Testing
- Trans-atrial septal placement LV lead for CRT
- Where
- 8 sites in Canada
- Sponsor
- Jaimie Manlucu
Myocarditis, Ventricular Arrythmia
GEAM Study Aims At Assessing the Role of Genetic Testing in Patients with Arrhythmic Myocarditis.
This study aims to answer multiple unsolved questions in the field of arrhythmic myocarditis. Improving the diagnostic work-up. While endomyocardial biopsy (EMB) and cardiac magnetic resonance (CMR) constitute the gold standard…
- Trial name
- GEAM (NCT06889662)
- Where
- Italy
- Volunteers
- 262 people, healthy volunteers welcome
- Sponsor
- Scientific Institute San Raffaele
Ventricular Tachycardia
Calmodulin Gene Mutations in Patients With Ventricular Arrhythmia of Unknown Origin - A Screening Study
The aim of this study is to screen a well characterized patient population with ventricular tachycardia of unknown origin and treated with an implantable cardioverter-defibrillator (ICD) for mutations in the calmodulin genes.
- Trial name
- NCT01947543
- Where
- Sweden
- Volunteers
- healthy volunteers welcome
- Sponsor
- Region Örebro County
ICD, Arrythmia
Genome-Wide Association Study With the Aim of Implantable Cardioverter Defibrillator Implantation Genophenotypic Risk Stratification
This clinical study will be conducted with funding from European Innovation Council(EIC) after approval of the fund grant and is part of our organization's European Pathfinder Project(Ref…
- Conditions
- ICD, Arrythmia, Sudden Cardiac Death
- Trial name
- ICDGPSS (NCT05582252)
- Testing
- Non-Invasive saliva sampling
- Where
- Turkey (Türkiye)
- Volunteers
- 2,500 people, healthy volunteers welcome
- Sponsor
- Selcuk University
Mitral Valve Insufficiency, Atrial Fibrillation
Left Atrial Distensibility to Predict Left Ventricular Filling Pressure and Prognosis in Patients With Severe Mitral Regurgitation
A large left atrial (LA) volume, which represents chronic diastolic dysfunction, is associated with a poor outcome, regardless of systolic function.
- Conditions
- Mitral Valve Insufficiency, Atrial Fibrillation, Heart Failure
- Trial name
- NCT01172184
- Testing
- Cardiac catheterization
- Where
- Taiwan
- Volunteers
- 111 people, healthy volunteers welcome
- Sponsor
- Kaohsiung Veterans General Hospital.
Paroxysmal Supraventricular Tachycardia
Zero-fluoroscopy Approach Versus Fluoroscopic Approach for the Ablation of Paroxysmal Supraventricular Tachycardia
This study is aimed to compare the feasibility, safety and efficacy of a zero-fluoroscopic approach using Ensite NavX with conventional fluoroscopic approach using Ensite NavX plus fluoroscopy for the ablation of paroxysmal…
- Trial name
- ZFA-PSVT (NCT03042078)
- Testing
- Zero-fluoroscopic ablation, Conventional fluoroscopic ablation
- Where
- China
- Volunteers
- 3,060 people
- Sponsor
- Tongji Hospital
Ventricular Arrythmia
Safety and Efficacy of Catheter Ablation of Idiopathic Ventricular Arrhythmias Arising From Cardiac Outflow Tracts
Ventricular arrhythmias arising from cardiac outflow tract affect quality of life and can cause decrease in left ventricular ejection fraction. Drugs used for treating those arrhytmias may be ineffective or may have side effects.
- Trial name
- NCT03258112
- Testing
- Radiofrequency cardiac catheter ablation
- Sponsor
- Assiut University
Sudden Cardiac Death, Sudden Cardiac Arrest
Low QRS Voltages in Young Healthy Individuals and Athletes
There is some limited evidence that reduced size of electrical complexes/traces of the heart on the electrocardiogram (ECG) may be associated with scarring in the heart muscle, which may predispose to serious life-threatening…
- Conditions
- Sudden Cardiac Death, Sudden Cardiac Arrest, Sudden Cardiac Death Due to Cardiac Arrhythmia, Arrhythmogenic Right Ventricular Cardiomyopathy
- Trial name
- NCT05799833
- Testing
- Cardiovascular magnetic resonance scan - 3T scanner (Siemens Vida)
- Where
- United Kingdom
- Volunteers
- 240 people, healthy volunteers welcome
- Sponsor
- Imperial College London
Aortic Valve Stenosis, AV Block
Edwards SAPIEN 3 PPI Registry
There are patient related risk factors for PPI that can be identified and assessed in retrospective pooling of 1000+ TAVI patient datasets.
- Conditions
- Aortic Valve Stenosis, AV Block, Bundle-Branch Block
- Trial name
- Conduct (NCT03497611)
- Testing
- transcatheter valve implantation
- Where
- 4 sites in Germany
- Volunteers
- 1,000 people
- Sponsor
- Institut für Pharmakologie und Präventive Medizin
Defect, Congenital Heart, Arrhythmia
Relationship Between Functional Health Status and Ventricular Performance After Fontan--Pediatric Heart Network
The purpose of this cross-sectional study was to determine the interrelationships between health status and measures of cardiac performance in children 6 to 18 years of age with congenital heart disease who have undergone a…
- Trial name
- NCT00132782
- Volunteers
- 546 people
- Sponsor
- Carelon Research
Mitral Valve Prolapse, Ventricular Arrhythmias and Cardiac Arrest
Mitral Valve Prolapse Arrhythmic Risk
Mitral valve prolapse (MVP) is common with a 2-3 % prevalence in the general association and generally associated with a favorable prognosis.
- Trial name
- MVP-Risk (NCT07830888)
- Testing
- Risk prediction model
- Where
- Norway
- Volunteers
- 500 people
- Sponsor
- Oslo University Hospital