Clinical trials: Cardiac Flow
Coronary Artery Disease
The Association Between Catheter-based Coronary Flow and Resistance and 15O-H2O Positron Emission Tomography Scan
Aims 1. To assess the correlation between absolute flow and resistance assessed by catheter-based thermodilution technique using CoroFlow®-system and myocardial blood flow (MBF) measured by positron emission tomography (PET) and…
- Trial name
- FLOW3 (NCT04973410)
- Testing
- Coronary Physiology, 15O-H2O-PET scan
- Where
- Denmark
- Volunteers
- 40 people
- Sponsor
- Aarhus University Hospital Skejby
Pulmonary Arterial Hypertension, Acute Respiratory Failure
Efficacy and Safety of High-Flow Nasal Cannula Versus Noninvasive Ventilation for Pulmonary Arterial Hypertension-Associated Acute Respiratory Failure
This is a single center, retrospective, propensity score matching cohort study that explores the efficacy and safety of high flow nasal cannula and non-invasive ventilation in the treatment of acute respiratory failure associated…
- Conditions
- Pulmonary Arterial Hypertension, Acute Respiratory Failure, High-flow Nasal Cannula, Noninvasive Ventilation
- Trial name
- HFCNV-PAH (NCT06582459)
- Testing
- HFNC treatment, NIV treatment
- Where
- China
- Volunteers
- 90 people
- Sponsor
- The First People's Hospital of Neijiang
Pulmonary Hypertension, Cardiorenal Syndrome
Predictive Value of Renal Venous Flow Profiles for Adverse Outcomes in Right Heart Failure
Predictive value of renal venous flow profiles for adverse outcomes in patients with right heart failure
- Conditions
- Pulmonary Hypertension, Cardiorenal Syndrome, Heart Failure
- Trial name
- NCT03039959
- Testing
- No intervention
- Where
- Germany
- Volunteers
- 421 people
- Sponsor
- University of Giessen
Coronary Occlusion
Validation Of Quantitative Flow Ratio (QFR) - Derived Virtual Angioplasty
Prospective intervention study to assess the accuracy of the predicted QFR-derived virtual angioplasty compared to hyperaemic and non-hyperaemic pressure-wire derived indexes after PCI, as well as with QFR post-PCI.
- Trial name
- QIMERA-I (NCT04200469)
- Testing
- Quantitative Flow Ratio (QFR) measurement
- Where
- 5 sites in Spain
- Volunteers
- 100 people
- Sponsor
- Hospital Clínico Universitario de Valladolid
Ischemic Heart Disease
Phase II Study for the Diagnosis and Functional Assessment of CAD Using Transthoracic-Echodoppler
The purpose of this study is to evaluate the efficacy and tolerance of a dipyridamole/adenosine combination given intravenously, as a slow bolus and at low doses to adenosine alone (given at its recommended dosage adjusted to…
- Trial name
- NCT01593644
- Testing
- adenosine + dipyridamole
- Where
- France
- Volunteers
- 75 people
- Sponsor
- Adenobio N.V
Coronary Microvascular Dysfunction
A Prospective, Multi-center Clinical Trial for Evaluating the Effectiveness and Safety of Online Coronary Angiography-Derived Index of Microcirculatory Resistance (caIMR)
More than 50% of patients with stable or unstable angina pectoris have no obstructive coronary arteries by angiographic visual estimation, in which coronary microvascular dysfunction (CMD) is one of the causes of myocardial…
- Trial name
- Flash III (NCT05009667)
- Testing
- Angiography-derived Index of Microcirculatory Resistance, Pressure wire-based Index of Microcirculatory Resistance
- Where
- 3 sites in China
- Volunteers
- 116 people
- Sponsor
- Ge Junbo
Heart Failure, Ventricular Function, Left
Resistance Exercise With Blood Flow Restriction by Vascular Occlusion on Myocardial Function in Heart Failure With Reduced Ejection Fraction
Exercise is essential in cardiac rehabilitation for heart failure patients.Aerobic training and resistance training are both recommended.
- Trial name
- ERFOCARD (NCT07118410)
- Testing
- Application of a vascular restriction device during resistance training
- Where
- France
- Volunteers
- 38 people
- Sponsor
- Centre Hospitalier Universitaire de Nīmes
Fractional Flow Reserve, Myocardial, Coronary Artery Disease
Performance of a New REsting Pressure Index During Invasive Angiography Compared To Adenosine Hyperemic FFR
To test the feasibility and diagnostic accuracy of a new automated pressure derived resting index (Pd/Pamin), using FFR as gold standard, in de novo coronary lesions in which invasive physiological evaluation is warranted.
- Trial name
- PREDICT (NCT03237169)
- Where
- 6 sites in United States, France and 2 more
- Volunteers
- 100 people
- Sponsor
- Centro Hospitalar Lisboa Ocidental
AKI
Intraoperative Transesophageal Echocardiography Assessment of Portal Vein Flow and Renal Resistive Index As a Predictor of Acute Kidney Injury After Cardiac Surgery: A Prospective Observational Study
The purpose of this study is to better understand if transesophageal echocardiography during cardiac surgery can predict problems with kidney function after cardiac surgery.
- Trial name
- NCT04112953
- Where
- United States
- Volunteers
- 80 people
- Sponsor
- University of Chicago
Coronary Artery Disease
Vascular Evaluation for Revascularization: Defining the Indications for Coronary Therapy: A Pilot Study
The present prospective, multicenter study will therefore be performed with the primary objective of establishing the correlation between fractional flow reserve (FFR) and intravascular ultrasound with virtual histology…
- Trial name
- VERDICT (NCT01158053)
- Testing
- FFR and VH-IVUS, IVUS and FFR
- Volunteers
- 291 people
- Sponsor
- Volcano Corporation
Pulmonary Hypertension
Integrated Diagnostics Characterization of Right Ventricular Diastolic Flow Dynamics in Pulmonary Arterial Hypertension
Pulmonary hypertension (PH) is a condition in which high blood pressure develops in the lungs and right side of the heart. People with PH suffer from shortness of breath, chest pain, heart failure, heart rhythm problems, and…
- Trial name
- NCT01491646
- Where
- United States
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- National Jewish Health
Peripheral Artery Disease, Vascular Disease
Adenosine-induced Myocardial Blood Flow in Peripheral Artery Disease Patients
The purpose of the study is to assess the effect of blood flow to the heart when subjects are treated with ticagrelor (Brilinta) or clopidogrel (antiplatelet drugs that stop the blood from clumping together) in patients with…
- Conditions
- Peripheral Artery Disease, Vascular Disease, Arterial Occlusion Disease, Intermittent Claudication
- Trial name
- PAD (NCT02121288)
- Testing
- Ticagrelor, clopidogrel
- Sponsor
- AstraZeneca
Healthy
GLP-1's Effect on Cardiac Parameters and Mesenteric Blood Flow
to investigate the effect of the human incretin hormone GLP-1 on mesenteric blood flow and cardiac parameters
- Trial name
- NCT01988545
- Testing
- 1,5 nmol/kg,GLP-1 sc injection, 1,5 nmol/kg GLP-1 9-36amide, sc injection, Exendin-4 ;10 ug,sc injection
- Where
- Denmark
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- Zealand University Hospital
Hepato-Renal Syndrome, Portal Hypertension
MRI to Assess the Effect of Terlipressin in Patients With Acute Hepatorenal Syndrome (HRS-AKI)
Heptorenal syndrome (HRS) is divided into two types. A non-acute kidney injury (NAKI-HRS), which is predominantly related to end-stage disease and a more acute kidney injury (HRS-AKI).
- Conditions
- Hepato-Renal Syndrome, Portal Hypertension, Acute Kidney Injury, Liver Diseases
- Trial name
- NCT03483272
- Where
- 2 sites in Denmark
- Volunteers
- 11 people
- Sponsor
- Hvidovre University Hospital
Ischemic Heart Disease
Automated Algorithm Detecting Physiologic Major Stenosis and Its Relationship With Post-PCI Clinical Outcomes
The presence of myocardial ischemia is the most important prognostic indicator in patients with coronary artery disease. Therefore, the purpose of percutaneous coronary intervention (PCI) is to relieve myocardial ischemia caused…
- Trial name
- Algorithm-PCI (NCT04304677)
- Testing
- Percutaneous coronary intervention
- Where
- South Korea
- Volunteers
- 486 people
- Sponsor
- Samsung Medical Center
Healthy Volunteers, Low Back Pain
Effects of Blood Flow Restriction Exercises on Lumbar Muscle Endurance and Balance in Healthy Young Adults
This study aims to examine the effects of blood flow restriction (BFR) exercises on back muscle endurance and balance in healthy young adults.
- Conditions
- Healthy Volunteers, Low Back Pain, Postural Balance, Muscle Fatigue
- Trial name
- BFR-LUMBEX (NCT07182812)
- Testing
- Blood Flow Restriction Sit-to-Stand Exercise, Sit-to-Stand Exercise without Blood Flow Restriction
- Where
- Turkey (Türkiye)
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Mehmet Akif Guler
Atherosclerosis, Coronary
Air Pollution (PM2.5) on Accelerated Atherosclerosis: A Montelukast Interventional Study in Modernizing China
Background: Longterm exposure to air pollution has been associated with cardiovascular events and mortality on top of traditional risk factors. Pulmonary inflammation and oxidative stress have been implicated.
- Trial name
- NCT04762472
- Testing
- Montelukast Oral Tablet
- Where
- Hong Kong
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Chinese University of Hong Kong
Stable Angina, Unstable Angina, NSTEMI
Evaluation of a Novel Non-Invasive Automated Fractional Flow Reserve Software System in Patients With Coronary Artery Disease
This retrospective study will evaluate the coronary angiograms of approximately 100 patients who have undergone invasive angiography and fractional flow reserve (FFR).
- Trial name
- NCT06183294
- Testing
- Collecting invasive FFR measurements.
- Where
- United States
- Volunteers
- 100 people
- Sponsor
- University of California, San Diego
Congenital Disorders
MRI Assessment of RV Function: Patients With TOF or Aortic Coarctation
At Children's Healthcare of Atlanta at Egleston, it is standard of care to do a cardiac MRI on patients with the diagnosis of Tetralogy of Fallot and Aortic Coarctation to evaluate heart function.
- Trial name
- NCT00277901
- Where
- United States
- Volunteers
- 390 people
- Sponsor
- Children's Healthcare of Atlanta
Coronary Artery Disease
Effect of BNP (Brain Natriuretic Peptides) on Endothelial Dysfunction Induced by Coronary Angioplasty
Patients receiving BNP or nitroglycerin (IV) during the angioplasty procedure. 24 h after the procedure, vascular reactivity will be re-examined using the brachial artery flow-mediated dilatation study.
- Trial name
- NCT00262574
- Testing
- Nesiritide,
- Where
- Israel
- Volunteers
- 500 people
- Sponsor
- The Baruch Padeh Medical Center, Poriya
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