Clinical trials: Ventricular Dyssynchrony
Congestive Heart Failure
An-Art Study: Atrioventricular (AV) Node Ablation in Cardiac Resynchronisation Therapy
Cardiac resynchronisation therapy (CRT) is a highly effective treatment option for patients with symptomatic heart failure and electrical intraventricular dyssynchrony, who are unresponsive to medical therapy.
- Trial name
- NCT00260546
- Testing
- AV-node ablation
- Sponsor
- University Hospital, Basel, Switzerland
Heart Failure
Karolinska-Rennes (KaRen) Prospective Study of Exercise Stress Echocardiography in Heart Failure With Preserved Ejection Fraction
Background: Heart failure with preserved ejection fraction (HFPEF) is common but not well understood. Electrical dyssynchrony in systolic heart failure is harmful.
- Trial name
- KaRen (NCT00774709)
- Where
- France
- Volunteers
- 90 people
- Sponsor
- French Cardiology Society
Cardiac Resynchronization Therapy
Acute Evaluation of the Safety of Left Ventricular-left Ventricular (LV-LV) Delays and Its Effects on Mechanical Dyssynchrony
The purpose of this study is to evaluate the effects of various LV-LV delays during multi-site left ventricular (MSLV) pacing on mechanical dyssynchrony in cardiac resynchronization therapy (CRT) patients post-implant.
- Trial name
- NCT01044784
- Where
- Germany
- Volunteers
- 73 people
- Sponsor
- Abbott Medical Devices
Pacemaker DDD, His Bundle Pacing
Electrical and Mechanical Activation in PAcing The His Bundle Conduction sYstem
In recent years, the finding of long-term deleterious effects of right ventricular pacing (RVP) has led to an ongoing search for alternative pacing sites such as His bundle stimulation.
- Conditions
- Pacemaker DDD, His Bundle Pacing, Right Ventricular Pacing
- Trial name
- EMPATHY (NCT05222672)
- Testing
- His Bundle Pacing
- Where
- Italy
- Volunteers
- 15 people
- Sponsor
- University Hospital of Ferrara
Heart Failure
A Novel Echocardiography Modality to Assess Left Ventricular Dyssynchrony
The investigators hypothesize that the relation between mechanical and hemodynamic left ventricular dyssynchrony might better predict response to Cardiac Resynchronization Device(CRT) than currently existing echo indices.
- Trial name
- NCT01007981
- Sponsor
- University of Missouri-Columbia
Left Ventricular Dyssynchrony
Rest/Stress Quantification Of Left Ventricular Dyssynchrony By 3D Gated Blood Pool D-SPECT
Cardiac Resynchronization Therapy (CRT) is an established treatment for patients with advanced heart failure and left ventricular dyssynchrony (LVD). Too many patients do not clinically improve with CRT.
- Trial name
- NCT01390532
- Testing
- 3D Blood-Pool Gated SPECT (BPGS) with a new designed cardiac imaging camera (DSPECT, Spectrum Dynamics®, Ceasaria, Israel)
- Where
- France
- Volunteers
- 30 people
- Sponsor
- University Hospital, Clermont-Ferrand
Left Ventricular Dyssynchrony, Heart Failure
Myocardial Work and Metabolism in CRT
Several attempts have been made to refine selection criteria for cardiac resynchronisation therapy (CRT) in heart failure patients with reduced ejection fraction (HFrEF).
- Conditions
- Left Ventricular Dyssynchrony, Heart Failure, Left Bundle Branch Block, Cardiomyopathy
- Trial name
- WORK-CRT (NCT02537782)
- Testing
- Cardiac resynchronisation therapy, Echocardiography, Magnetic Resonance Imaging
- Where
- 2 sites in Belgium, Norway
- Volunteers
- 200 people
- Sponsor
- Universitaire Ziekenhuizen KU Leuven
Ventricular Rhythm From Artificial Pacing
Right Ventricular Apical Versus True Mid-septal Pacing
Background Right ventricular (RV) artificial apical pacing can negatively impact synchrony of left ventricular contraction. The pacing from the septum of the RV can present an advantage in terms of less expressed dyssynchrony and…
- Trial name
- MS-R (NCT02412176)
- Testing
- Pacing site - the implantation in the right ventricular (RV) apex, Pacing site - the implantation in the septum
- Where
- Czechia
- Volunteers
- 200 people
- Sponsor
- Charles University, Czech Republic
Diabetes, Hypoglycemia
Acute Changes in Plasma Glucose and Cardiovascular Disease in Diabetes
Patients with diabetes have an increased risk of sudden cardiac death compared to the general population. Severe hypoglycemia is associated with an increased risk of cardiovascular (CV) disease (CVD) and events, including cardiac…
- Conditions
- Diabetes, Hypoglycemia, Hyperglycemia, Cardiovascular Diseases
- Trial name
- NCT05500352
- Testing
- Hyperglycemia with slow decline in plasma glucose in type 1 diabetes, Hyperglycemia with rapid decline in plasma glucose in type 1 diabetes, Rebound hyperglycemia in type 1 diabetes
- Where
- Denmark
- Volunteers
- 86 people, healthy volunteers welcome
- Sponsor
- Steno Diabetes Center Copenhagen
Heart Failure, Ventricular Dysfunction
B-Left HF: Biventricular Versus Left Univentricular Pacing With Implantable Cardiac Defibrillator (ICD) Back-Up in Heart Failure Patients
The purpose of this study is to demonstrate that biventricular pacing (BiV) and left univentricular (left ventricular [LV] only) pacing are safe and effective for cardiac resynchronization therapy in heart failure patients…
- Conditions
- Heart Failure, Ventricular Dysfunction, Heart Diseases
- Trial name
- NCT00187213
- Testing
- Cardiac Resynchronization Therapy
- Where
- France
- Sponsor
- Abbott Medical Devices
Bradyarrhythmia, Atrioventricular Block
PReventive Effect Of Left Bundle Branch Area Pacing Versus righT vEntricular paCing on All Cause deaTh, Heart Failure Progression, and Ventricular dysSYNChrony in Patients With Substantial Ventricular Pacing (PROTECT-SYNC): Multicenter Prospective Randomized Controlled Trial
PROTECT-SYNC study is a multicenter, randomized, controlled trial. A total of 7 medical centers across Republic of Korea will enroll 450 patients during 2 years of enrollment period, and followed for 2 years of follow-up period.
- Conditions
- Bradyarrhythmia, Atrioventricular Block, Left Bundle Branch Area Pacing
- Trial name
- NCT05585411
- Testing
- Left bundle branch area pacing, Right ventricular pacing
- Where
- 8 sites in South Korea
- Volunteers
- 450 people
- Sponsor
- Yonsei University
Bradycardia
ENHANCE-Efficacy of the Presence of Right Ventricular Apical Pacing Induced Ventricular Dyssynchrony as a Guiding Parameter for Biventricular Pacing in Patients With Bradycardia and Normal Ejection Fraction
The purpose of this clinical project is to evaluate the efficacy of the presence of Right Ventricular Apical (RVA) pacing induced ventricular dyssynchrony as a guiding parameter for bi-ventricular pacing in patients with…
- Trial name
- ENHANCE (NCT01559311)
- Testing
- CRT-P OFF, CRT-P ON, DDDR
- Where
- 7 sites in Australia, China and 3 more
- Volunteers
- 98 people
- Sponsor
- Abbott Medical Devices
Transcatheter Aortic Valve Replacement
Prognostic Factors in NOP-LBBB After TAVI
The goal of this observational study is to find prognostic factors in patients with a new-onset persistent left bundle branch block (NOP-LBBB) after transcatheter aortic valve implantation (TAVI).
- Trial name
- ProgNOP-LBBB (NCT05654792)
- Testing
- Transcatheter aortic valve implantation
- Volunteers
- 230 people
- Sponsor
- Central Hospital, Nancy, France
Systolic Heart Failure
Pilot Study Using Echocardiography to Evaluate Patients With Heart Failure and Dyssynchrony Who Have a CRT-D Device
Out of all the patients that receive a CRT-D ( a dual chamber pacemaker with defibrillator ) for cardiac resynchronization therapy there is approximately one-third that do not respond.
- Trial name
- NCT01127334
- Where
- United States
- Sponsor
- University of Mississippi Medical Center
Heart Block, Heart Block Complete
Effect of Site of Right Ventricular (RV) Pacing on RV Function, Left Ventricular (LV) Dyssynchrony and Contraction Efficiency
To evaluate RV systolic function and LV mechanical dyssynchrony and function in different lead position in the RV during permanent pacemaker implantation by using speckle tracking echocardiography (STE) and 3D volumetric ejection…
- Conditions
- Heart Block, Heart Block Complete, Systolic Function
- Trial name
- NCT06636851
- Testing
- Pacemaker and defibrillator
- Where
- Egypt
- Volunteers
- 52 people
- Sponsor
- South Valley University
Congenital Complete Atrioventricular Heart Block, High Grade Atrioventricular Block
Effects of Chronic Right Ventricular Pacing in Children With Advanced Atrioventricular Block
Recent studies have shown that chronic stimulation of the right ventricle can cause deleterious effects to cardiac function and synchronicity.
- Conditions
- Congenital Complete Atrioventricular Heart Block, High Grade Atrioventricular Block, Postoperative Complete Heart Block
- Trial name
- NCT01477658
- Where
- Brazil
- Volunteers
- 140 people
- Sponsor
- University of Sao Paulo
Heart Failure, Ventricular Dyssynchrony
Echocardiography Guided Cardiac Resynchronization Therapy (EchoCRT)
The EchoCRT trial evaluates the effects of Cardiac Resynchronization Therapy (CRT) on mortality and morbidity of subjects with heart failure due to left ventricular systolic dysfunction, already receiving optimized HF medication…
- Trial name
- EchoCRT (NCT00683696)
- Testing
- Implantable Cardioverter Defibrillator with Cardiac Resynchronization Therapy (BIOTRONIK Lumax HF-T CRT-D)
- Where
- 122 sites in United States, Australia and 15 more
- Volunteers
- 1,680 people
- Sponsor
- Biotronik, Inc.
Heart Failure, Left Bundle-Branch Block
Conventional Biventricular Versus Left Bundle Branch Pacing on Outcomes in Heart Failure Patients
Heart failure (HF) is the most common nosology encountered in clinical practice. Its incidence and prevalence increase exponentially with increasing age and it is associated with increased mortality, more frequent hospitalization…
- Conditions
- Heart Failure, Left Bundle-Branch Block, Ischemic Cardiomyopathy, Non-ischemic Dilated Cardiomyopathy
- Trial name
- RECOVER-HF (NCT05769036)
- Testing
- Implantation of Cardioverter-defibrillator with a Resynchronization Function Using Biventricular Pacing, Implantation of Cardioverter-defibrillator with a Resynchronization Function Using Left Bundle Branch Pacing
- Where
- Russia
- Volunteers
- 60 people
- Sponsor
- Tomsk National Research Medical Center of the Russian Academy of Sciences
RV Pacing, Negative Remodeling
Ultra-high-frequency ECG for Prediction of Left Ventricular Remodeling
The main goal of the project is to prove that ultra-high-frequency ECG (UHF-ECG) can be used as a diagnostic tool that allows the prediction of patients susceptible to the negative effect of right ventricular myocardial pacing.
- Conditions
- RV Pacing, Negative Remodeling, Dyssynchrony, UHF-ECG
- Trial name
- NCT04908033
- Testing
- pacemaker implantation
- Where
- Czechia
- Volunteers
- 368 people
- Sponsor
- Faculty Hospital Kralovske Vinohrady
Heart Failure
A Study of Triple-site Ventricular Pacing in Patients Who Have Not Responded to Conventional Dual Ventricular Site Cardiac Resynchronization Therapy
Patients are randomised to receive ongoing optimised device and medical therapy or triple ventricular site resynchronisation. The hypothesis states that patients receiving triple-site resynchronization will exhibit a better…
- Trial name
- TRIVENT (NCT00941850)
- Testing
- Upgrade to triple ventricular site CRT
- Where
- United Kingdom
- Volunteers
- 20 people
- Sponsor
- University Hospitals, Leicester