Clinical trials: Valve Replacement
Glutathione Peroxidase Activity, Aortic Stenosis
GPx Activity in Subjects With Aortic Stenosis Undergoing TAVR
The aim of this project is to investigate the association of glutathione peroxidase (GPx) and severe aortic stenosis (AS), as well as the impact of transcatheter aortic valve replacement (TAVR) on GPx activity post-procedure.
- Conditions
- Glutathione Peroxidase Activity, Aortic Stenosis, Transcatheter Aortic Valve Replacement
- Trial name
- NCT04268160
- Testing
- Blood draw to measure GPx activity, Blood draw to measure SOD activity, Blood draw to measure Lp(a) levels
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Florida
Pathological Processes, Cardiomyopathies
Adenosine as an Adjunct to Blood Cardioplegia
Myocardial protection is a major issue in cardiac surgery, since inadequate protection increases the risk of postoperative cardiac dysfunction.
- Trial name
- NCT02681913
- Testing
- Adenosine
- Where
- Netherlands
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Amphia Hospital
Aortic Stenosis, Disorder of Prosthetic Cardiac Valve
Biomarkers in Aortic Stenosis - B.A.S.S.
This study is being done to determine whether or not new blood test(s) can determine the severity of heart conditions. Aortic stenosis, hypertrophic cardiomyopathy, mitral regurgitation, aortic regurgitation, artificial heart…
- Conditions
- Aortic Stenosis, Disorder of Prosthetic Cardiac Valve, Aortic Valve Insufficiency, Mitral Valve Insufficiency
- Trial name
- BASS (NCT01334801)
- Testing
- Blood Draw
- Where
- United States
- Volunteers
- 378 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Aneurysm Aortic Root, Aortic Valve, Bicuspid
Aortic Valve Dynamics During Exercise After Valve Sparing Root Replacement Surgery
Aortic valve sparing operations are applied in patients with a non-calcified tricuspid or bicuspid aortic valve associated with a root aneurysm, in order to preserve the valve, and avoid new aortic dilatation by stabilizing the…
- Trial name
- NCT04205474
- Testing
- graded bicycle test
- Where
- Belgium
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University Hospital, Ghent
Congenital Disorders
Predictors for Pulmonary Valve Replacement - Anatomic and Hemodynamic Using MRI
Magnetic Resonance Imaging (MRI) is a non-invasive test that can look at the heart without using radiation. An MRI will allow the doctors to look at the heart in order to assess how well the ventricle is pumping, the amount of…
- Trial name
- NCT00489788
- Volunteers
- 101 people, healthy volunteers welcome
- Sponsor
- Emory University
Transcatheter Aortic Valve Replacement
CT TAVR Abdomen Study
A standard polyenergetic CT (computed tomography) procedure utilizes 100 ml of iodinated contrast. A recent world-wide shortage of iodine based intravenous contrast has highlighted the need to search for alternative methods or…
- Trial name
- CT TAVR (NCT05758701)
- Testing
- Iodinated Contrast Agent (Omnipaque), Dual Energy CT
- Where
- United States
- Volunteers
- 164 people, healthy volunteers welcome
- Sponsor
- University of Maryland, Baltimore
Aortic Stenosis
The Role of Myocardial Fibrosis in Patients With Aortic Stenosis
Aortic stenosis is the most common adult valvular heart disease in the western world. Heart failure and sudden cardiac death are complications associated with aortic stenosis.
- Trial name
- NCT01755936
- Testing
- Cardiac Magnetic Resonance Imaging, Echocardiography, 72 hour Holter Monitor
- Where
- United Kingdom
- Volunteers
- 203 people, healthy volunteers welcome
- Sponsor
- University of Edinburgh
Transcatheter Aortic Valve Implantation Prosnosis and Complications
Tryptase Level as a Marker of Complications in Transcatheter Aortic Valve Replacement
An association between mast cells and outcomes of patients undergoing transcatheter aortic valve replacement (TAVR) has not been studied to our knowledge.
- Trial name
- TAVR (NCT03047681)
- Testing
- venous blood withdrawl
- Where
- Israel
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Tel-Aviv Sourasky Medical Center
Transcatheter Aortic Valve Replacement, Atrial Fibrillation New Onset
Colchicine for Patients With Aortic Stenosis Undergoing Transcatheter Aortic Valve Replacement
Transcatheter aortic valve implantation (TAVI) is a well-established alternative to surgical aortic valve replacement for the treatment of patients with symptomatic severe aortic stenosis.
- Conditions
- Transcatheter Aortic Valve Replacement, Atrial Fibrillation New Onset, Pacemaker, Colchicine
- Trial name
- Co-STAR (NCT04870424)
- Testing
- Colchicine
- Where
- Switzerland
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Insel Gruppe AG, University Hospital Bern
Acute Kidney Injury
A Clinical Score to Predict Acute Kidney Injury After Heart Valve Replacement Surgery
Acute kidney injury (AKI) is a common and severe complication of cardiac surgery. The main stay treatment remains preventive with no clear evidence supporting any therapeutic interventions.
- Trial name
- NCT04237636
- Where
- China
- Volunteers
- 3,392 people, healthy volunteers welcome
- Sponsor
- Xijing Hospital
Conduction Disturbances, Transcatheter Aortic Valve Replacement
Prospective Validation of a Pre-Specified Algorithm for the Management of Conduction Disturbances Following TAVR
The high incidence and variety of conduction disturbances post-TAVR represents a major challenge in the periprocedural management of TAVR recipients.
- Conditions
- Conduction Disturbances, Transcatheter Aortic Valve Replacement, Permanent Pacemaker Implantation
- Trial name
- PROMOTE (NCT04139616)
- Where
- Canada
- Volunteers
- 2,000 people, healthy volunteers welcome
- Sponsor
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Quebec
Ischemia Coronary Artery Origin
Thoracic Epidural Reduces Risks of Increased Left Ventricular Mass Index During Coronary Artery Bypass Graft Surgery
Increased left ventricular mass index (LVMI) results from aortic valve lesions as an adaptive mechanism to help limit systolic wall stress and preserve ejection fraction (EF).
- Trial name
- NCT03719248
- Testing
- thoracic epidural
- Where
- Egypt
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Ahmed Said Elgebaly,MD
Aortic Valve Disease, Aortic Valve Stenosis
Evaluation of the Inflammatory Response in Post-operated Aortic Valve Replacement Patients.
Background Calcification of the aortic valve affects more than 26% of adult patients over 65 years of age and is the main indication for valve replacement in the United States of America.
- Conditions
- Aortic Valve Disease, Aortic Valve Stenosis, Aortic Valve Calcification, Prosthetic Valve Malfunction
- Trial name
- NCT04557345
- Testing
- Determination of cytokines, Two-dimensional transthoracic echocardiogram
- Where
- Mexico
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Instituto Nacional de Cardiologia Ignacio Chavez
Transcatheter Aortic Valve Replacement
Monitored Anesthesia Care vs. General Anesthesia for Transcatheter Aortic Valve Replacement
This study is being done to evaluate the impact that monitored anesthetic care (MAC) versus general endotracheal anesthesia (GETA) has on hospital length of stay, rate of ICU admission, and procedural mortality for patients…
- Trial name
- NCT04107038
- Testing
- General Endotracheal Anesthesia, Monitored anesthesia care
- Where
- United States
- Volunteers
- 170 people, healthy volunteers welcome
- Sponsor
- Medical University of South Carolina
Left Bundle Branch Block, Transcatheter Aortic Valve Replacement
HV Electrophysiology Study In Transcatheter Aortic Valve Implantation Patients
TAVI induced LBBB is a complication that occurs between 7 and 65 % of the cases, numbers that differ considerably between devices.
- Conditions
- Left Bundle Branch Block, Transcatheter Aortic Valve Replacement, Transcatheter Aortic Valve Implantation
- Trial name
- HESITATE (NCT02659137)
- Testing
- HV measurement
- Where
- Netherlands
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Maastricht University Medical Center
Heart Valve Disease
D-Dimer Determined Anticoagulation INTENSITY in Patients With Mechanical Valve Replacement
The optimal intensity of oral anticoagulation in China patients undergoing mechanical valve replacements is still controversial due to the different risk profiles of thrombophilia and bleeding in Chinese patients.
- Trial name
- 3D-INTENSITY (NCT01996657)
- Testing
- Warfarin
- Where
- 2 sites in China
- Volunteers
- 772 people, healthy volunteers welcome
- Sponsor
- Wuhan Asia Heart Hospital
Tricuspid Valve Disease
CorMatrix Cor TRICUSPID ECM Valve Replacement Study
The Pivotal Study of the Cor TRICUSPID ECM Valve (or Cor PEDIATRIC Tricuspid ECM Valve). This study follows the EFS and is now to determine the safety and efficacy of the Cormatrix Cor TRICUSPID Valve for any patients requiring…
- Trial name
- NCT02397668
- Testing
- CorMatrix Cor TRICUSPID ECM Valve
- Where
- 4 sites in United States
- Volunteers
- 78 people, healthy volunteers welcome
- Sponsor
- Corvivo Cardiovascular, Inc.
Coronary Artery Bypass Grafting, Heart Valve Replacement
A Prehabilitation Program for Frail Patients Undergoing Cardiac Surgeries/Procedures
The purpose of this study is to develop and evaluate a frailty-specific prehabilitation program for patients awaiting cardiac surgeries/procedures.
- Conditions
- Coronary Artery Bypass Grafting, Heart Valve Replacement, Transcatheter Aortic Valve Implantation, Frailty
- Trial name
- PREHAB (NCT06323317)
- Testing
- Multi-component exercise programme, Structured preoperative education, Nutritional optimization
- Where
- Hong Kong
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- The University of Hong Kong
Mitral Regurgitation, Mitral Valve Disease
Munich Transcatheter Mitral Valve Safety and Effectiveness
The Munich Trascatheter Mitral Valve System is intended for beating heart, mitral valve replacement in patients with a diseased, damaged, or malfunctioning mitral valve.
- Trial name
- MUSE (NCT05871983)
- Testing
- MUNICH TRANSCATHETER MITRAL VALVE REPLACEMENT SYSTEM
- Where
- 10 sites in Argentina, Brazil and 1 more
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- P+F Products + Features GmbH
Prosthetic Replacement of Mitral Valve, Abnormality of Aortic Valve
The Comparison of the 3 Minutes Ramp Walk Test With 6 Minutes Walk Test in Stable Patients After Valve Replacement
In view of assessing the uphill walking capacity and to provide a functional stress test with better sensitivity the investigators need a short term functional stress test over the gold standard six minute walk test....
- Trial name
- NCT02279238
- Testing
- cardiac rehabilitation
- Where
- India
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- PSG Institute of Medical Science and Research