Clinical trials: Heart Conduction System
Bradycardia, Heart Failure
ECG Belt to Assess Electrical Synchronization
The objective of the study is to assess the utility of ECG Belt to understand the conduction and ECG characteristics of Left Bundle Branch Pacing (LBBAP) and His-Optimized Cardiac Resynchronization Therapy (HOT-CRT) and compare…
- Trial name
- NCT04583709
- Testing
- ECG Belt
- Where
- United States
- Volunteers
- 20 people
- Sponsor
- Pugazhendhi Vijayaraman
Supraventricular Tachycardia
Effectiveness of Calcium Channel Blockers and Adenosine in the Emergency Management of SVT
The purpose of this study is to determine the efficacy and effectiveness of calcium channel blockers and adenosine in the treatment of Supraventricular Tachycardia.
- Trial name
- NCT00413712
- Testing
- Calcium Channel Blocker & Adenosine
- Where
- Singapore
- Volunteers
- 206 people
- Sponsor
- Singapore General Hospital
Bradyarrhythmias, AV Block Complete
Belgo-Luxembourg Leadless PM Registry
This is a single-arm, multicenter clinical study evaluating the long-term effectiveness and safety profile of the CE-marked and commercially available Aveir leadless pacemaker systems manufactured by Abbott.
- Conditions
- Bradyarrhythmias, AV Block Complete, AV Block-2Nd Degree-Type 1, Pacemaker
- Trial name
- BELLA (NCT07879716)
- Testing
- CT scan heart, 24 hour ambulatory ECG monitoring
- Where
- 9 sites in Belgium, Luxembourg
- Volunteers
- 190 people
- Sponsor
- Universitaire Ziekenhuizen KU Leuven
Ventricular Tachycardia
Modification of the Local Abnormal Ventricular Activity Only
Local abnormal ventricular activity (LAVA) is composed of high-frequency, mainly low voltage signals that represent near-field signals from slow-conducting tissue and thus potential VT isthmuses.
- Trial name
- LAVAONLY (NCT05331716)
- Testing
- Cardiac ablation therapy
- Where
- Germany
- Volunteers
- 22 people
- Sponsor
- University of Kiel
Inappropriate Sinus Tachycardia
Ablation of Inappropriate Sinus Tachycardia
Hypothesis- Radiofrequency ablation, targeting the sympathetic input of the sinus node identified by 20Hz stimulation at the junction of the superior vena cava and the right atrium, will effectively reduce sinus rate acutely and…
- Trial name
- IST (NCT00584649)
- Testing
- electrophysiology study and radiofrequency ablation
- Where
- United States
- Volunteers
- 34 people
- Sponsor
- University of Oklahoma
Tetralogy of Fallot (TOF), Ventricular Tachycardia
Validation of ECG-Based Ventricular Arrhythmia Localization Algorithms in Patients With Repaired Tetralogy of Fallot
Doctors use patterns on heart rhythm tracings (ECGs) to predict where abnormal heart rhythms originate, but these prediction methods were developed in people with normal heart structure.
- Trial name
- NCT07607821
- Testing
- RV and LV pace mapping
- Volunteers
- 30 people
- Sponsor
- Boston Children's Hospital
Ventricular Tachycardia
FLExAbility Sensor Enabled Substrate Targeted Ablation for the Reduction of VT Study
This clinical investigation is intended to demonstrate the safety and effectiveness of ventricular ablation therapy using the FlexAbility Sensor Enabled Ablation Catheter in patients with drug-refractory monomorphic ventricular…
- Trial name
- LESS-VT (NCT03490201)
- Testing
- Market Approved RF Ablation System, FlexAbility SE Ablation Catheter
- Where
- 32 sites in United States, Australia and 6 more
- Volunteers
- 592 people
- Sponsor
- Abbott Medical Devices
Heart Block, Heart Failure
Right Apical Versus Septal Pacing Trial
The purpose of this study is to examine whether RV (right ventricular)septal pacing has any effect on LV ( left ventricular) function than RV apical pacing in patients who require ventricular pacing.
- Trial name
- RASP (NCT00199498)
- Testing
- Apical RV lead placement, Septal RV lead placement
- Where
- Canada
- Volunteers
- 160 people
- Sponsor
- London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's
Sudden Cardiac Death, Heart Failure
Cardiac Rehab Retrospective Review (CR3)
All patients enrolled in the Austrian LifeVest Registry will be retrospectively screened for successfully completed ambulatory or stationary rehabilitation program.
- Conditions
- Sudden Cardiac Death, Heart Failure, Ventricular Arrythmia, Ventricular Tachycardia
- Trial name
- CR3 (NCT04675957)
- Testing
- cardiac rehabilitation
- Where
- Austria
- Volunteers
- 55 people
- Sponsor
- Medical University of Graz
Subarachnoid Hemorrhage (SAH), Tachycardia
Impact of Tachycardia on Outcome After Subarachnoid Hemorrhage (SAH)
The purpose of this retrospective study is to test the hypothesis that uncontrolled tachycardia serves as a risk factor for adverse cardiovascular events and poor outcome after Subarachnoid Hemorrhage (SAH).
- Trial name
- NCT01585311
- Where
- United States
- Volunteers
- 1,540 people
- Sponsor
- Columbia University
Ventricular Tachycardia
Clonidine to Prevent Implantable Cardiovertor Defibrillator Firing
Cardiac arrest or sustained VT (ventricular tachycardia) in patients with heart disease is best treated with an ICD (implantable cardioverter defibrillator).
- Trial name
- NCT00585871
- Testing
- clonidine, metoprolol
- Where
- United States
- Sponsor
- James Martins
Cardiac Resynchronisation Therapy (CRT), Heart Failure
Conduction System Pacing vs. Biventricular Pacing for Cardiac Resynchronization Therapy
The NORDIC-CSP trial is an investigator-initiated, blinded, nordic RCT aimed at evaluating whether using direct pacing of the HIS bundle (HIS)-pacing or left bundle branch (LBB) pacing is superior to conventional biventricular…
- Conditions
- Cardiac Resynchronisation Therapy (CRT), Heart Failure, Conduction System Pacing
- Trial name
- Nordic-CSP (NCT07492979)
- Testing
- HIS or LBBB -CRT, Conventional BiV-CRT
- Where
- 5 sites in Denmark, Finland and 2 more
- Volunteers
- 1,100 people
- Sponsor
- Copenhagen University Hospital, Rigshospitalet
Cardiac Arrest, Ventricular Fibrillation
VectOr ChAnge defibriLlatIon in Refractory Shockable rhyThms
Management of cardiac arrest according to published guidelines has remained largely unchanged for a decade. Thames Valley Air Ambulance provide Critical Care Paramedic and Physician teams who respond to cardiac arrests and offer…
- Conditions
- Cardiac Arrest, Ventricular Fibrillation, Ventricular Tachycardia
- Trial name
- VOCALIST (NCT05926973)
- Testing
- Enhanced cardiac arrest bundle
- Where
- United Kingdom
- Volunteers
- 50 people
- Sponsor
- Thames Valley Air Ambulance
Arrhythmogenic Right Ventricular Dysplasia, Brugada Syndrome
Distribution of Cell-cell Junction Proteins in Arrhythmic Disorders
Every week in the UK, 12 apparently healthy and fit individuals under the age of 35 die suddenly, a tragic event known as sudden cardiac death (SCD).
- Conditions
- Arrhythmogenic Right Ventricular Dysplasia, Brugada Syndrome, Cardiac Channelopathy
- Trial name
- NCT04257994
- Testing
- obtaining a buccal smear sample
- Where
- United Kingdom
- Volunteers
- 26 people
- Sponsor
- St. George's Hospital, London
Long QT Syndrome
Metabolism of Patients With Genetically Caused Cardiac Arrhythmia
Loss-of-function mutations in voltage-gated potassium channels cause long QT syndrome (LQTS) due to a prolonged cardiac repolarisation phase.
- Trial name
- NCT02775513
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University of Copenhagen
Ventricular Tachycardia, Ischemic Cardiomyopathy
Catheter Ablation for Nonsustained Ventricular Tachycardia in Patients With Ischemic Cardiomyopathy
Despite established implantable cardioverter-defibrillator (ICD) therapy and catheter ablation for sustained ventricular tachycardia (VT) in patients with ischemic heart disease (IHD) and reduced left ventricular ejection…
- Conditions
- Ventricular Tachycardia, Ischemic Cardiomyopathy, Reduced LVEF
- Trial name
- nsVT (NCT03147027)
- Testing
- VT ablation, medication
- Where
- Germany
- Volunteers
- 72 people
- Sponsor
- Heinrich-Heine University, Duesseldorf
Pain
Methadone Pharmacokinetics and Cardiac Effects in Newborns
The Primary objectives of this proposal are to determine the population kinetics for methadone and its enantiomers in preterm newborns and infants at 29 weeks to 48 weeks post menstrual age (PMA) who are 1 week old and older and…
- Trial name
- NCT00715988
- Testing
- Methadone HCl Inject 10 mg/ml (will require dilution), Methadone
- Where
- 2 sites in United States
- Volunteers
- 7 people
- Sponsor
- University of Utah
Premature Atrial Contractions, Premature Ventricular Contractions
Coffee and Real-time Atrial and Ventricular Ectopy
Atrial fibrillation (AF) and heart failure (HF) are morbid, costly, and incompletely understood diseases that have reached epidemic proportions worldwide.
- Trial name
- CRAVE (NCT03671759)
- Testing
- Start: On Caffeine, Start: Off Caffeine
- Where
- United States
- Volunteers
- 108 people, healthy volunteers welcome
- Sponsor
- University of California, San Francisco
Postural Orthostatic Tachycardia Syndrome, Postural Tachycardia Syndrome
Autoimmune Basis for Postural Tachycardia Syndrome
The purpose of this study is to see if some people with postural tachycardia syndrome (POTS) have higher levels of immune proteins (autoantibodies) directed against receptors of the autonomic nervous system, and if these…
- Conditions
- Postural Orthostatic Tachycardia Syndrome, Postural Tachycardia Syndrome, Tachycardia, Arrhythmias, Cardiac
- Trial name
- NCT02725060
- Testing
- phenylephrine, isoproterenol, 25 micro-Ci of radiation
- Where
- 2 sites in United States
- Volunteers
- 58 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University Medical Center
Long QT Syndrome Type 1 or 2
Comparison Between Epinephrine and Exercise Test in QT Long Syndrome Patients
The aim of the study is to evaluate the best stress exam to unmask long QT in patient with KCNQ1 or KCNH2 mutation without long QT interval in rest electrocardiogram.
- Trial name
- QT long (NCT01745666)
- Testing
- exercise test, Epinephrine test
- Where
- 8 sites in France
- Volunteers
- 130 people, healthy volunteers welcome
- Sponsor
- Nantes University Hospital
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