Clinical trials: Cardiac Flow
Chronic Kidney Disease Stage 5, Heart Failure
AVF Volume Blood Flow Reduction in HD Patients
Heart failure with preserved / high cardiac output is a well-known syndrome in patients with high-flow arteriovenous fistula (AVF). However, the threshold for classifying an AVF as high-flow is currently undefined.
- Trial name
- NCT06807138
- Where
- Russia
- Volunteers
- 86 people
- Sponsor
- Moscow Regional Research and Clinical Institute (MONIKI)
Severe Symptomatic Aortic Stenosis
Change in Coronary Microcirculation and FFR After TAVI in Patients With Cardiovascular Comorbidities
Change in coronary microcirculation and Fractional Flow Reserve after Transcatheter Aortic Valve Implantation in patients with concomitant coronary artery disease and severe aortic stenosis.
- Trial name
- NCT04663334
- Testing
- inverse myocardial remodeling
- Where
- France
- Volunteers
- 29 people
- Sponsor
- Nantes University Hospital
Coronary Artery Disease, Angina Pectoris
PREcise Percutaneous Coronary Intervention for Stent OptimizatION in Treatment of COMPLEX Lesion (PRECISION-COMPLEX)
The aim of the study is to compare post-interventional fractional flow reserve (FFR) value between optical coherence tomography(OCT)-guided and angiography-guided strategy for treatment of complex coronary lesion.
- Trial name
- NCT05493904
- Testing
- OCT-guided PCI, Angiography-guided PCI, Drug-eluting stent
- Where
- 4 sites in South Korea
- Volunteers
- 320 people
- Sponsor
- Chonnam National University Hospital
Congenital Heart Disease
Impact of Early Enteral Feeding on Splanchnic Blood Flow After Surgery for Critical Heart Disease in the Newborn
The objective of this study is to determine the impact of early post-operative feeding on splanchnic blood flow, cardiac output and end organ perfusion, and the patients overall clinical outcomes.
- Trial name
- NCT00919945
- Testing
- Continuous feeding at time 1 and NPO at time 2, NPO at time 1 and continuous feeding at time 2
- Where
- Canada
- Volunteers
- 42 people
- Sponsor
- The Hospital for Sick Children
Coronary Artery Disease, Myocardial Ischemia
Pressure Guidewire Comparison
Fractional flow reserve (FFR) is the current gold standard for correct decision making with respect to revascularization in the catheterization laboratory.
- Trial name
- NCT04802681
- Testing
- FFR-measurement with different pressure guidewires
- Where
- Netherlands
- Volunteers
- 50 people
- Sponsor
- Lokien van Nunen
Acute Myocardial Infarction
Transcutaneous Electrical Nerve Stimulation Improves Vascular Conductance After Coronary Artery Bypass Graft Surgery
The investigators will test the hypothesis that transcutaneous electrical nerve stimulation (TENS) may attenuate peripheral vasoconstriction and to improve blood flow redistribution during handgrip exercise in acute myocardial…
- Trial name
- TEBCABG (NCT01777659)
- Testing
- Transcutaneous electrical nerve stimulation
- Where
- Brazil
- Volunteers
- 38 people
- Sponsor
- Hospital de Clinicas de Porto Alegre
Coronary Artery Disease
Fractional Flow Reserve Versus Angiography for Multivessel Evaluation (FAME) 3 Extended
Coronary artery disease, or narrowing of the blood vessels that provide blood to the heart, is the most common cause of death in the United States and can be treated with either coronary bypass surgery or coronary stent…
- Trial name
- NCT07308860
- Testing
- FFR-guided PCI, CABG
- Where
- United States
- Volunteers
- 1,500 people
- Sponsor
- Stanford University
Cardiac Disease
The CZT Dynamic Myocardial Perfusion Imaging
To develop and validate the noninvasive measurement of MBF and MFR by using dynamic imaging with a CZT camera, and evaluate the diagnostic and prognostic implications in various heart disease.
- Trial name
- CZT (NCT02697760)
- Testing
- thallium-201
- Where
- Taiwan
- Volunteers
- 234 people
- Sponsor
- Far Eastern Memorial Hospital
Acute Coronary Syndrome, Coronary Atherosclerosis
Routine Versus Selective Use of FFR to Guide PCI
Fractional flow reserve (FFR) is a test that can be performed at the time of heart catheterization. It measures the change in pressure across a narrowing in the heart artery during high flow situation, and provides reliable…
- Conditions
- Acute Coronary Syndrome, Coronary Atherosclerosis, Angina, Unstable
- Trial name
- FFR-SELECT (NCT02000661)
- Testing
- Fractional Flow Reserve (FFR)
- Where
- 4 sites in Canada
- Volunteers
- 261 people
- Sponsor
- Cardiology Research UBC
Preeclampsia
Ephedrine, Phenylephrine and Metaraminol Effects on Maternal Cardiac Output, Uterine Blood Flow and Fetal Circulation
It is a prospective clinical trial with random distribution that intends to investigate maternal and fetal effects of ephedrine, phenylephrine and metaraminol during cesarean delivery in patients with pre-eclampsia.
- Trial name
- NCT02245191
- Testing
- Ephedrine, Phenylephrine, Metaraminol
- Where
- Brazil
- Volunteers
- 60 people
- Sponsor
- University of Sao Paulo General Hospital
Heart Failure
Right Ventricular (RV) Pacing in Early Post-operative Continuous Flow Left Ventricular Assist Device (LVAD)
Continuous right ventricular (RV) pacing demonstrates harm in patients with normal left ventricular (LV) function as well as in patients with cardiomyopathy and clinical heart failure.
- Trial name
- NCT01446796
- Testing
- Implantable Cardioverter-Defibrillator (subject's pre-existing ICD)
- Where
- United States
- Volunteers
- 3 people
- Sponsor
- Duke University
Coronary Artery Disease
Combined Pressure and Flow Measurements to Guide Treatment of Coronary Stenoses
This study evaluates the prognostic value and therapeutic potential of combined pressure and flow measurements when evaluating a coronary artery stenosis.
- Trial name
- DEFINE-FLOW (NCT02328820)
- Testing
- Percutaneous coronary intervention (PCI), Optimal medical therapy (OMT)
- Where
- 12 sites in Denmark, Italy and 4 more
- Volunteers
- 455 people
- Sponsor
- The University of Texas Health Science Center, Houston
Kidney Disease, Chronic, Myocardial Dysfunction
Coronary Microvascular Dysfunction in Chronic Kidney Disease
This is an observational study assessing coronary microvascular function in healthy controls with normal kidney function, living kidney donors, pre-dialysis patients with chronic kidney disease stage 5 and patients on peritoneal…
- Trial name
- CRIB-FLOW (NCT04014127)
- Testing
- Coronary flow reserve assessment, Sphygmocor, Electrocardiogram
- Where
- United Kingdom
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University Hospital Birmingham NHS Foundation Trust
Myocardial Infarction [C14.907.585.500]
Influence of Intensive Lipid Lowering Treatment Compared to Moderate Lipid Lowering Treatment
The aim of this study was to measure the effect of low- and high-dose lipid-lowering treatment with rosuvastatin on the coronary physiology parameters.
- Trial name
- NCT01245894
- Testing
- Low-dose Rosuvastatin, High-dose Rosuvastatin
- Where
- Denmark
- Volunteers
- 87 people
- Sponsor
- Odense University Hospital
Acute ST Segment Elevation Myocardial Infarction, Acute Myocardial Infarction
FLOW Evaluation to Guide Revascularization in Multi-vessel ST-elevation Myocardial Infarction
Although current guidelines recommend fractional flow reserve (FFR) to identify haemodynamically relevant coronary lesion(s) in stable patients when evidence of ischaemia is not available (Class I, Level of Evidence: A), no…
- Conditions
- Acute ST Segment Elevation Myocardial Infarction, Acute Myocardial Infarction, Multi Vessel Coronary Artery Disease
- Trial name
- FLOWER-MI (NCT02943954)
- Testing
- Angiography guided PCI, Fractional Flow Reserve (FFR)
- Where
- France
- Volunteers
- 1,170 people
- Sponsor
- Assistance Publique - Hôpitaux de Paris
Congenital Heart Disease, Pulmonary Hypertension
Integrated Computational modelIng of Right Heart Mechanics and Blood Flow Dynamics in Congenital Heart Disease
Advances in paediatric cardiology and cardiac surgery have enabled the survival of most patients born with congenital heart disease (CHD) into adulthood.
- Trial name
- NCT03217240
- Testing
- Cardiac Magnetic Resonance - MRI, Cardiopulmonary Exercise Test, Blood Sampling for all participants
- Where
- 3 sites in Singapore
- Volunteers
- 400 people, healthy volunteers welcome
- Sponsor
- National Heart Centre Singapore
Coronary Artery Disease
CO2 as a Stress Agent for Perfusion Imaging
Myocardial perfusion imaging (MPI) is a nuclear scan using a radioisotope to see blood flow to the muscles of the heart when the heart is at rest and when it is under stress.
- Trial name
- CO2 STRESS (NCT02043535)
- Testing
- Delivery of precise levels of carbon dioxide with the RA-MR™ Virtual Sequential Gas Delivery System., Delivery of rubidium radioisotope (Rb-82) using the automated pump/elution system
- Where
- Canada
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Ottawa Heart Institute Research Corporation
COVID-19, Chronic Heart Failure
Intermittent Hypoxic-hyperoxic Training in Patients With Cardiovascular Pathology After COVID-19 Infection.
Aim of this prospective, interventional, single-center, randomized study is to evaluate the efficacy and safety of intermittent hypoxic-hyperoxic training (IHHT) as a rehabilitation method in patients with cardiovascular…
- Conditions
- COVID-19, Chronic Heart Failure, Hypertension, Arrhythmia
- Trial name
- NCT05379608
- Testing
- Intermittent hypoxic-hyperoxic training, Intermittent hypoxic-hyperoxic training/control
- Where
- Russia
- Volunteers
- 43 people
- Sponsor
- I.M. Sechenov First Moscow State Medical University
Coronary Artery Disease
Does Routine Pressure Wire Assessment Influence Management Strategy at Coronary Angiography for Diagnosis of Chest Pain?
The use of coronary angiography to investigate patients at risk of coronary artery narrowings has become universal. In most cases, this investigation leads to a successful treatment plan with revascularisation recommended where…
- Trial name
- RIPCORD (NCT01070771)
- Testing
- Radi pressure wire (pressure wire assessment)
- Where
- 10 sites in Ireland, United Kingdom
- Volunteers
- 203 people
- Sponsor
- University Hospital Southampton NHS Foundation Trust
Coronary Disease, Percutaneous Coronary Intervention
Fractional Flow Reserve and Instantaneous Free-wave Ratio Revascularization Strategies in Women
A real world study to evaluate outcomes in women based on guideline identified fractional flow reserve (FFR) and instantaneous wave-free ratio (iFR) cutoffs for ischemia (ischemia defined as FFR ≤ 0.80 and iFR ≤ 0.89).
- Conditions
- Coronary Disease, Percutaneous Coronary Intervention, Exercise Test, Myocardial Perfusion Imaging
- Trial name
- FiRST (NCT04599192)
- Testing
- No study intervention
- Where
- United States
- Volunteers
- 500 people
- Sponsor
- Yale University
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