Clinical trials: Cardiac Resynchronization
Heart Failure
Real Time 3-Dimensional Echocardiography for Left Ventricular Lead Site Selection to Reduce Cardiac Resynchronization Therapy Non-Responder Rates
The purpose of this study is to demonstrate that cardiac resynchronization therapy (CRT) responder rate can be improved by 3-dimensional (3D) echo-guided left ventricular (LV) lead placement compared to traditional LV lead…
- Trial name
- ENVISION (NCT01278030)
- Testing
- 3D echo-guided LV lead placement
- Where
- United States
- Volunteers
- 78 people
- Sponsor
- Abbott Medical Devices
Heart Failure, Congestive, Ventricular Fibrillation
Safety and Effectiveness of Cardiac Resynchronization Therapy With Defibrillation
The purpose of this study was to determine if cardiac resynchronization therapy when combined with defibrillation is safe and effective in the treatment of symptomatic heart failure.
- Conditions
- Heart Failure, Congestive, Ventricular Fibrillation, Tachycardia, Ventricular
- Trial name
- NCT00387803
- Testing
- Cardiac Resynchronization Therapy with Defibrillation
- Where
- United States
- Volunteers
- 581 people
- Sponsor
- Boston Scientific Corporation
Heart Failure
European Cardiac Resynchronisation Therapy Survey
The European CRT survey represents a joint initiative between two ESC associations; the Heart Failure Association and the European Heart Rhythm Association.
- Trial name
- NCT01185392
- Volunteers
- 2,438 people
- Sponsor
- Helse Stavanger HF
Functional Mitral Regurgitation, Heart Failure
Evaluation of Outcomes of CRT and MitraClip for Treatment of Low Ejection Fraction and Functional Mitral Regurgitation in HF
At present, the optimal treatment strategy for heart failure patients and moderate-to-severe (3+) or severe (4+) mitral regurgitation with a class IIa recommendation for CRT is uncertain.Whether these patents should also be…
- Trial name
- EVOLVE-HF (NCT02985268)
- Testing
- MitraClip, Optimal Medical Therapy, CRT-D
- Sponsor
- Montreal Heart Institute
Left Ventricular Ejection Fraction, Heart Failure (HF)
REsynchronization Comparison In LBBB and Normal or Mildly Reduced VENTricular Function With CRT (REINVENT-CRT)
Primary Objective - To determine if implantation of a permanent CRT pacing device (with LB-CRT, or conventional BiV-CRT with a coronary sinus LV lead) can improve electromechanical function, HF symptoms, and natriuretic peptide…
- Conditions
- Left Ventricular Ejection Fraction, Heart Failure (HF), Left Bundle-Branch Block
- Trial name
- REINVENT (NCT05652218)
- Testing
- LB-CRT, BIV-CRT
- Where
- 2 sites in United States
- Volunteers
- 21 people
- Sponsor
- Inova Health Care Services
Dilated Cardiomyopathy, Pediatric
Resynchronization Therapy in Young Patients With and Without CHD
Pacemakers can be attached to one or more than one of the heart chambers. After watching pacemakers work over time, doctors have found that the pacemakers that stimulate only one chamber of the heart sometimes lead to problems…
- Trial name
- NCT00208806
- Testing
- congestive heart failure patients
- Where
- United States
- Volunteers
- 50 people
- Sponsor
- Emory University
Congenital Disorders
Resynchronization of Left Ventricular Contraction After Reimplantation of Anomalous Left Coronary Artery
Spontaneous resynchronization of dyskinetic segments of the left ventricle occurs after coronary bypass surgery in adults and has been shown in some children.
- Trial name
- NCT00268112
- Where
- United States
- Volunteers
- 3 people
- Sponsor
- Children's Healthcare of Atlanta
Heart Failure, Cardiac Resynchronization Therapy
Tissue Doppler Imaging (TDI) Versus Electrocardiography (ECG) Interventricular Pacing Delay Optimization in Cardiac Resynchronization Therapy (CRT)
The aim of this study was to compare the response to cardiac resynchronization therapy when the interventricular pacing interval was optimized by Tissue Doppler Imaging (TDI) to response when it was optimized following QRS width…
- Trial name
- NCT01179997
- Testing
- Interventricular pacing delay optimization by using Tissue Doppler-derived displacement curves, Electrocardiographic optimization of the interventricular pacing delay according to QRS width
- Where
- Spain
- Volunteers
- 156 people
- Sponsor
- Hospital Clinic of Barcelona
Heart Failure
Ivabradine in Patients With an Unsatisfactory Percentage of Cardiac Resynchronization Therapy
The purpose of this study is to determine the role of ivabradine in cardiac resynchronization recipients with an unsatisfactory percentage biventricular pacing.
- Trial name
- IvaCRT (NCT02166060)
- Testing
- Ivabradine
- Where
- Poland
- Volunteers
- 60 people
- Sponsor
- Medical University of Warsaw
Implantable Cardioverter Defibrillators, CRT-D Cardiac Resynchronization Therapy Defibrillator
LONGEVITY Study. Evaluation of the Device and Battery Longevity of Boston Scientific Market-released ICD and CRT-D Devices
The study is to determine the rate and cause of device replacements at 5 years post-implantation. It will assess the battery and device longevity of the Implantable Cardioverter Defibrillators (ICD) and CRT-D Cardiac…
- Trial name
- NCT02091011
- Where
- 80 sites in United States, Canada and 6 more
- Volunteers
- 1,600 people
- Sponsor
- Boston Scientific Corporation
Heart Failure
Medtronic South Asian Systolic Heart Failure Registry
The purpose of this study is to (a) characterize the current management of patients with systolic heart failure (HF) in South Asia following an educational intervention of current guidelines and delivery of disease management…
- Trial name
- SASHFR (NCT01434615)
- Testing
- CRT, No-CRT
- Where
- India
- Volunteers
- 502 people
- Sponsor
- Medtronic Cardiac Rhythm and Heart Failure
Heart Failure, CRT and/or ICD
Evaluation of Electrical and Hemodynamic Effects of Different Pacing Strategies in CRT Candidates
Heart failure patients with delayed electrical activation of the heart often benefit from cardiac resynchronization therapy (CRT). However, traditional CRT using biventricular pacing is not effective in all patients.
- Trial name
- NCT07032064
- Testing
- Sequential ventricular pacing at five sites
- Where
- China
- Volunteers
- 28 people
- Sponsor
- Shanghai Zhongshan Hospital
Ischemic Congestive Cardiomyopathy, Dilated Cardiomyopathy
Optimizing Left Ventricular Lead To Improve Cardiac Output
The purpose of this study is to determine if optimal lead placement, guided by the largest improvement in aortic flow measured by Doppler will: 1. Improve the way the heart's left ventricle functions 2.
- Conditions
- Ischemic Congestive Cardiomyopathy, Dilated Cardiomyopathy, Congestive Heart Failure
- Trial name
- CARE/VOLCANO (NCT01399801)
- Testing
- Doppler flow measurement, standard implantation of the LV lead
- Where
- United States
- Volunteers
- 12 people
- Sponsor
- Ann Marie Chikowski
ECG Monitoring
Biomedical Shirt-based ECG Monitoring
Cardiovascular diseases (CVD) are associated with high healthcare costs, as well as are a leading cause of mortality and hospitalizations.
- Trial name
- ECG-shirt (NCT03068169)
- Where
- 3 sites in Poland
- Volunteers
- 220 people
- Sponsor
- Medical University of Warsaw
Heart Failure
Optimizing Cardiac Resynchronization
Cardiac resynchronization therapy shows great promise as a method to improve ventricular function in heart failure due to dilated cardiomyopathy.
- Trial name
- NCT00205192
- Testing
- Cardiac resynchronization pacing
- Where
- United States
- Volunteers
- 100 people
- Sponsor
- University of Wisconsin, Madison
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
Cardiovascular Disease
Medtronic Shock-Less Study on Physician Utilization of Shock Reduction Programming
The purpose of this clinical trial is to determine whether periodic therapy programming reports illustrating physician usage of shock reduction programming can increase utilization of recommended programming guidelines for…
- Trial name
- NCT00856349
- Testing
- Therapy Programming Report (TPR)
- Where
- 104 sites in United States, Argentina and 10 more
- Volunteers
- 4,384 people
- Sponsor
- Medtronic Cardiac Rhythm and Heart Failure
Congenital Heart Defects
Assessing the Hemodynamic Benefits of Cardiac Resynchronization Therapy in Children Following Open-Heart Surgery
Malformations of the heart (congenital heart disease) are the most common congenital birth defects, occurring in about 1% of children.
- Trial name
- NCT00397514
- Testing
- Congenital Heart Surgery Patients
- Where
- Canada
- Volunteers
- 34 people
- Sponsor
- University of British Columbia
Systolic Heart Failure, Heart Failure With Reduced Ejection Fraction
Evaluation of Left Bundle Branch Area Pacing As A Rescue Strategy for Cardiac Resynchronization Therapy Non-Response
This study aims to investigate whether the investigators can improve heart function in patients with heart failure who have undergone cardiac resynchronization therapy, but have not had an improvement in their heart function at…
- Conditions
- Systolic Heart Failure, Heart Failure With Reduced Ejection Fraction, CRT Non-Response, Left Bundle Branch Area Pacing
- Trial name
- NCT05884411
- Testing
- Left bundle branch area pacing, Cardiac MRI
- Where
- United States
- Sponsor
- VA Office of Research and Development