Clinical trials: Cardiac Flow
Sickle Cell Disease
Relationship Between Abnormal Myocardial Perfusion and Diastolic Dysfunction in Sickle Cell Disease Using PET
There is limited information on what causes injury to the heart in individuals with Sickle Cell Disease (SCD). Researchers in this study want to see if decreased blood flow to the heart during stress could be causing the heart…
- Trial name
- NCT05583721
- Testing
- [13N]NH3, Lexiscan, Positron emission tomography
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- St. Jude Children's Research Hospital
Hypertension
Does Ultraviolet Irradiation Reduce Platelet Reactivity and Improve Coronary Microvascular Function in Man?
Endothelium derived nitric oxide (NO) regulates vascular tone and blood pressure in man. NO also inhibits platelet aggregation and mediates a variety of beneficial anti-inflammatory and repair mechanisms.
- Trial name
- NCT01785511
- Testing
- UVA Radiation
- Where
- United Kingdom
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- University of Edinburgh
Healthy, Lactate Blood Increase
The Lactate Project: Investigating the Impact of Lactate to Preserve Vital Organ Blood Supply and Function in Heart and Brain
The aim of the proposed study is to investigate the effect of increased plasma lactate concentrations on the heart and brain's metabolism of other energy sources, primarily glucose in the brain and glucose and FFA in the heart.
- Trial name
- NCT06665763
- Testing
- Sodium Lactate Solution
- Where
- 2 sites in Denmark
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- University of Aarhus
Vascular Disease, Heart Disease
Effects of Urocortins on Forearm Arterial Blood Flow in Healthy Volunteers (Protocol 3)
Impairment of the heart's pumping capacity (heart failure) remains a major clinical problem with a poor prognosis and the search for novel treatments remains an important area of research.
- Trial name
- NCT01096706
- Testing
- NO clamp, Saline, Fluconazole
- Where
- United Kingdom
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of Edinburgh
Microvascular Angina, Microvascular Coronary Artery Disease
EUROpean Coronary microCirculatory Resistance and Absolute Flow Trial
Rationale: coronary microvascular disease is a relatively 'new' entity within the field of cardiology. The investigators are able to investigate the microcirculation by measurements performed in the catheterization laboratory.
- Conditions
- Microvascular Angina, Microvascular Coronary Artery Disease, Coronary Vasospasm, Microvascular Resistance
- Trial name
- EURO-ccraft (NCT04598308)
- Testing
- absolute flow and resistance measurements
- Where
- Netherlands
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Catharina Ziekenhuis Eindhoven
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
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
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
Pain Management
LASER Effects Blood Flow
This study investigate the potential impact of low power laser (LPL), an non-invasive physical therapy, on the cardiovascular system by focusing on its effect on heart rate and autonomic tone.
- Trial name
- LASERBF (NCT07369843)
- Testing
- physical therapy (low power LASER)
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Saint Paul's Hospital, Congregation Of The Sisters Of Saint Paul De Chartres
Arterial Hypertension
Association Between Left Ventricular Deformation and Aerobic Exercise Capacity in Untreated Arterial Hypertension
Impaired myocardial deformation may determine cardiac diastolic dysfunction. The investigators will investigate the vascular determinants of myocardial deformation and twisting-untwisting and their interrelation with exercise…
- Trial name
- NCT02346695
- Where
- Greece
- Volunteers
- 480 people, healthy volunteers welcome
- Sponsor
- University of Athens
Non-Obstructive Coronary Atherosclerosis
Effect of Mental Stress on Myocardial Perfusion in Women
Mental stress-induced myocardial ischemia(MSIMI) has been recognized a significant clinical problem. Evidence has shown that individuals with MSIMI have 2 to 2.5 times higher risk to develop a major averse cardiovascular events…
- Trial name
- MS in women (NCT03982901)
- Testing
- Mental Stress Test
- Where
- China
- Volunteers
- 126 people, healthy volunteers welcome
- Sponsor
- Guangdong Provincial People's Hospital
Cerebral Hypoxia
The Effects of Hypobaria vs Hypoxia on Cerebral Functions.
The investigators will investigate the effect of hypobaria and hypoxia on physiological responses such as: oxygen saturation, heart rate, cerebral blood flow, cerebral oxygenation, brain's activity and concentration performance.
- Trial name
- Hypoxia (NCT03303118)
- Testing
- Hypoxia
- Where
- Switzerland
- Volunteers
- 17 people, healthy volunteers welcome
- Sponsor
- Fliegerärztliches Institut
Endothelial Dysfunction, Acute Myocardial Infarction (AMI)
Validation of Cor-IS Impedance Spectroscopy Against Ultrasound Flow-Mediated Dilation
This prospective observational study evaluated the Cor-IS bioelectrical impedance spectroscopy technique for the assessment of endothelial function by comparison with ultrasound-based brachial artery flow-mediated dilation (FMD).
- Conditions
- Endothelial Dysfunction, Acute Myocardial Infarction (AMI), Cardiovascular Risk Factors (e.g., Hypertension), Flow Mediated Dilation
- Trial name
- NCT07882550
- Testing
- Cor-IS FMD, Ultrasound FMD
- Where
- Greece
- Volunteers
- 208 people, healthy volunteers welcome
- Sponsor
- Aristotle University Of Thessaloniki