Clinical trials: Conduction Block
Severe Symptomatic Aortic Stenosis (Defined as New York Heart Association (NYHA) Class ≥ II)
PERFECT - Portuguese Evolut Registry Studying the Outcomes of Medtronic Evolut™ FX+ TAVI System by Evaluating an Optimal Care Pathway for TAVI
The goal of this registry is to learn how the Medtronic Evolut™ FX+ transcatheter aortic valve implantation (TAVI) System performs in adults with severe, symptomatic aortic stenosis who need valve replacement.
- Trial name
- PERFECT (NCT07343674)
- Where
- 12 sites in Portugal
- Volunteers
- 500 people
- Sponsor
- Portuguese Association of Interventional Cardiology
Transcatheter Aortic Valve Implantation, Physiological Pacing
Randomized Study of Physiological vs Right Ventricular Pacing in Patients With Normal Ventricular Function Post TAVI
Single-center randomized trial in patients with pacing indication (AV block) after TAVI (transfemoral aortic valve implantation) and LVEF> 50%, that aims to study the percentage of patients who improve at 12 months in a combined…
- Conditions
- Transcatheter Aortic Valve Implantation, Physiological Pacing, Right Ventricular Pacing, AV Block
- Trial name
- PHYSTAVIII (NCT06197503)
- Testing
- Conduction system pacing, Right ventricular pacing
- Where
- Spain
- Volunteers
- 48 people
- Sponsor
- Hospital Clinic of Barcelona
Atrioventricular Block, Sick Sinus Syndrome
AV Delay Optimization vs. Intrinsic Conduction in Pacemaker Patients With Long PR Intervals
This is a randomized, prospective clinical trial to determine the effects of two different pacemaker atrioventricular delay (AV delay) settings on heart function in patients with dual chamber pacemakers implanted for symptomatic…
- Conditions
- Atrioventricular Block, Sick Sinus Syndrome, Symptomatic Bradycardia, Cardiac Arrhythmia
- Trial name
- AV Delay (NCT02154750)
- Testing
- Long, fixed AV delay, Short, optimized AV delay
- Where
- United States
- Volunteers
- 23 people
- Sponsor
- University of California, San Diego
Congenital Heart Disease, Bradycardia Sinus
Specialized Pacing for Patients With Congenital Heart Disease
The closed-loop stimulation (CLS) algorithm is a novel sensor-based technology that relies on the change in myocardial systolic impedance for modulation of the heart rate during physical and emotional stress.3 The pacing…
- Trial name
- NCT03361189
- Testing
- Closed loop stimulation, Standard rate response
- Where
- United States
- Volunteers
- 4 people
- Sponsor
- University of California, Los Angeles
Syncope, Heart Block
Syncope: Pacing or Recording in the Later Years
Syncope affects about 50% of Canadians, is the cause of 1 - 2% of all emergency room visits, and probably is responsible for CDN $250 million in health care spending each year.
- Conditions
- Syncope, Heart Block, Conduction Disorder of the Heart
- Trial name
- Spritely (NCT01423994)
- Testing
- pacemaker, implantable loop recorder
- Where
- 17 sites in United States, Canada and 3 more
- Volunteers
- 120 people
- Sponsor
- Canadian Institutes of Health Research (CIHR)
Tricuspid Valve Insufficiency, Sick Sinus Syndrome
Left Ventricular Pacing to Prevent Iatrogenic TR Pilot Study
Background and Aims Pacemaker implantation for treating bradyarrhythmias typically involves placing a pacing lead through the tricuspid valve (TV) into the right ventricular (RV) apex.
- Trial name
- NCT02314897
- Testing
- LV pacing, RV pacing
- Where
- Singapore
- Volunteers
- 20 people
- Sponsor
- National University Hospital, Singapore
Acute Coronary Syndrome
Management of Acute Myocardial Infarction in the Presence of Left Bundle Branch Block
The primary objective of this study is to propose new treatment algorithm (strategy) for patients with Acute Coronary Syndrome (ACS) and left bundle-branch block (LBBB).
- Trial name
- NCT01494870
- Testing
- PCI
- Where
- Russia
- Volunteers
- 300 people
- Sponsor
- Samara Regional Cardiology Dispensary
Bundle-Branch Block
The CRT-KIR Study (Cardiac Resynchronization Therapy [CRT] in the Early Phase After Heart Surgery)
In patients with broad QRS complexes on electrocardiogram (ECG), the delayed electrical activation of the left heart chamber will cause abnormal contraction.This has been shown to be possible to treat by a special pacemaker…
- Trial name
- NCT00192946
- Testing
- Temporary cardiac resynchronization therapy
- Volunteers
- 60 people
- Sponsor
- Copenhagen University Hospital, Rigshospitalet
Sinus Bradycardia
Cardiac Denervation Ablation Strategy for Severe Sinus Bradycardia
This is a prospective clinical observation and registration study. The investigator aimed to evaluate the efficacy and safety of cardiac denervation ablation as a treatment strategy for severe sinus bradycardia.
- Trial name
- NCT06276816
- Where
- China
- Volunteers
- 88 people
- Sponsor
- China National Center for Cardiovascular Diseases
Heart Failure
Choosing the Right Pacing Mode in Heart Failure - The CHOICE Trial
The aim of the study is to see if biventricular pacemakers offer any advantage over conventional pacemakers in patients with heart failure who require pacemakers.
- Trial name
- CHOICE (NCT00875732)
- Testing
- Bi Ventricular Pacing, Right Ventricular Pacing
- Where
- United Kingdom
- Volunteers
- 22 people
- Sponsor
- University of Dundee
Aortic Stenosis, Atrial Fibrillation New Onset
Long Term Evaluation of Cardiac Arrhythmias After Transcatheter Aortic Valve Implantation -The LOCATE Registry
The purpose of the Long term Evaluation of Cardiac Arrhythmias after Transcatheter Aortic Valve Implantation (LOCATE) Registry is to perform long-term ambulatory monitoring of patients with severe aortic stenosis who undergo…
- Conditions
- Aortic Stenosis, Atrial Fibrillation New Onset, Heart Block
- Trial name
- NCT06055751
- Testing
- TAVR Procedure and implantation of Boston Scientific Loop Recorder (LUX-Dx PMA# K193473)
- Where
- 2 sites in United States
- Volunteers
- 50 people
- Sponsor
- Kansas City Heart Rhythm Research Foundation
Vasovagal Syncope, AV Block-2Nd Degree-Type 1
Cardioneuroablation for Recurrent Vasovagal Syncope and Bradyarrhythmias: The CNA-FWRD Registry
The CNA-FWRD Registry is an international prospective observational multicenter registry of patients with symptomatic vasovagal syncope and bradyarrhythmias managed under routine care by medical therapy and radiofrequency…
- Conditions
- Vasovagal Syncope, AV Block-2Nd Degree-Type 1, Sinus Pause
- Trial name
- CNA-FWRD (NCT06166277)
- Testing
- Ablation procedure
- Where
- United States
- Volunteers
- 300 people
- Sponsor
- Rush University Medical Center
Left Branch Bundle Block, RV - Right Ventricular Abnormality
Functional Outcomes in CondUction System Pacing and Right Ventricular Synchrony (FOCUS-Right)
The goal of this prospective single center clinical trial is to evaluate the safety and feasibility of performing simultaneous exercise stress cardiac magnetic resonance (CPET-CMR) and cardiopulmonary exercise testing in patients…
- Trial name
- FOCUS-Right (NCT06601322)
- Testing
- Pacemaker Interrogation and Electrocardiogram (ECG):, Cardiopulmonary Exercise Test (CPET) and Exercise Stress Cardiac Magnetic Resonance (ExeCMR, Continuous pacemaker telemetry (CPT)
- Where
- United States
- Volunteers
- 5 people
- Sponsor
- Virginia Commonwealth University
Atrial Fibrillation (AF), Pacemaker Therapy
Left Bundle Branch Pacing vs Right Ventricular Pacing on AHRE Burden in Patients With Preserved LVEF
This prospective, randomized controlled trial aims to evaluate the effect of left bundle branch pacing (LBBP) compared with conventional right ventricular (RV) pacing on the cumulative duration (total time) of atrial high-rate…
- Conditions
- Atrial Fibrillation (AF), Pacemaker Therapy, Atrioventricular Block, Preserved Ejection Fraction
- Trial name
- LBBP-AHRE (NCT07250529)
- Testing
- Right Ventricular Pacing, Left Bundle Branch Pacing
- Where
- Greece
- Volunteers
- 244 people
- Sponsor
- University Hospital of Patras
Left Bundle-Branch Block, Right Bundle-Branch Block
Non-invasive Mapping Using Ultra-high Frequency Electrocardiography
Cardiac electrical mapping is an important tool that allows doctors to study the electrical activity of the heart in detail. Electrical mapping systems used in clinical practice are time consuming, invasive and very costly.
- Conditions
- Left Bundle-Branch Block, Right Bundle-Branch Block, Non-Specific Intraventricular Conduction Defect
- Trial name
- NCT04537455
- Testing
- Ultra-high frequency electrocardiography
- Where
- United Kingdom
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Imperial College London
Sinus Node Dysfunction, Bradycardia-Tachycardia Syndrome
Spontaneous Atrio Ventricular Conduction Preservation
In case of sinus node dysfunction, it is often necessary to choose the safer option provided by a DDD pacemaker even though the most appropriate mode of pacing is AAI mode.
- Conditions
- Sinus Node Dysfunction, Bradycardia-Tachycardia Syndrome, Paroxysmal Atrioventricular Block
- Trial name
- SAVER (NCT00655213)
- Testing
- Symphony D 2450, Symphony DR 2550
- Where
- 67 sites in Belgium, France and 3 more
- Volunteers
- 622 people
- Sponsor
- LivaNova
Arrhythmia, Sinus Node Disease
PANORAMA Observational Study
To construct a computerized database of national profiles and epidemiological data on patients wearing Medtronic implantable pacemakers and cardioverter defibrillators (both with or without cardiac resynchronization therapy)…
- Conditions
- Arrhythmia, Sinus Node Disease, Heart Failure, Heart Block
- Trial name
- NCT00382525
- Testing
- Cardiac Rhythm Management device
- Where
- 27 sites in Belgium, India and 4 more
- Volunteers
- 8,586 people
- Sponsor
- Medtronic Cardiac Rhythm and Heart Failure
Heart Failure, Systolic, Left Bundle Branch Block
Optimal Coronary Sinus Lead Implantation Using Intracardiac Impedography and Magnetic Resonance Imaging
Despite the dramatic effect of cardiac resynchronization therapy (CRT) on survival and morbidity in people with congestive heart failure, 50-70% of eligible patients do not respond to this intervention.
- Trial name
- NCT01129635
- Testing
- Cardiac Resynchronization Therapy (CRT) implantation
- Where
- United States
- Volunteers
- 38 people
- Sponsor
- Emory University
Cardiomyopathy, Heart Failure
Adaptive CRT Effect on Electrical Dyssynchrony
The purpose of this study is to better understand how adaptive cardiac resynchronization therapy (aCRT) might benefit patients. aCRT works by sometimes giving stimulation to only the left side of the heart, rather than to both…
- Conditions
- Cardiomyopathy, Heart Failure, Left Bundle Branch Block
- Trial name
- aCRT-ELSYNC (NCT02543281)
- Testing
- Adaptive cardiac resynchronization therapy, Conventional Cardiac Resynchronization Therapy
- Where
- United States
- Volunteers
- 32 people
- Sponsor
- Larisa Tereshchenko
Anesthesia, Conduction, Osteoarthritis, Hip
Pain and Sensation After Regional Anesthesia - Pilot Study
This study aims to determine spinal resolution and pain levels after the placement of a lumbar plexus block (LPB) and spinal for total hip replacement procedure.
- Trial name
- NCT03623035
- Where
- United States
- Volunteers
- 10 people
- Sponsor
- Wake Forest University Health Sciences