Clinical trials: Cerebral Blood Flows
Aneurysmal Subarachnoid Hemorrhage, Delayed Neurological Deficit
Effects of Donepezil on Regional Cerebral Blood Flow Following Aneurysmal Subarachnoid Haemorrhage
Introduction Aneurysmal subarachnoid hemorrhage (aSAH) is bleeding around the under surface of the brain caused by rupture of an aneurysm arising from a blood vessel.
- Conditions
- Aneurysmal Subarachnoid Hemorrhage, Delayed Neurological Deficit, Delayed Cerebral Ischemia, Vasospasm
- Trial name
- DASH (NCT02222727)
- Testing
- Donepezil
- Where
- United Kingdom
- Volunteers
- 19 people
- Sponsor
- St George's, University of London
Traumatic Brain Injury, Cerebral Hemorrhage
TCD Detection of Ophthalmic Artery Blood Flow Velocity Prediction Feasibility Study of Intracranial Pressure
Increased intracranial pressure is a cause of disease progression in patients with brain disease, a common cause of poor prognosis.
- Conditions
- Traumatic Brain Injury, Cerebral Hemorrhage, Increased Intracranial Pressure
- Trial name
- NCT02240394
- Where
- China
- Volunteers
- 400 people
- Sponsor
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital
Extracorporeal Circulation, Inflammation
Rheoparin-coated Tubing System for Minimized Extracorporeal Circulation (MECC)
In this study, the investigators would like to compare a heparin-coated tubing system for minimized extracorporeal circulation (MECC) with the conventional tubing system for MECC, which does not contain heparin coating.
- Conditions
- Extracorporeal Circulation, Inflammation, Blood Coagulation, Intracranial Embolism
- Trial name
- RheoMECC (NCT02321917)
- Testing
- MECC system with rheoparin coating
- Where
- 2 sites in Switzerland
- Volunteers
- 50 people
- Sponsor
- Insel Gruppe AG, University Hospital Bern
Healthy
Cerebral Blood Flow Effects of Resveratrol and Piperine in Humans
Resveratrol is associated with a plethora of physiological effects in humans, including modulation of cerebral blood flow, despite apparently poor bioavailability.
- Trial name
- NCT01331382
- Testing
- Trans- resveratrol
- Where
- United Kingdom
- Volunteers
- 23 people, healthy volunteers welcome
- Sponsor
- Northumbria University
Anterior Cerebral Artery Syndrome, Anterior Cerebral Artery Stroke
Transcranial Doppler Evaluation After Endovascular Thrombectomy for Acute Ischemic Stroke (PRECISE-TCD)
Endovascular thrombectomy (EVT) improves outcomes in acute ischemic stroke caused by large vessel occlusion. Despite successful recanalization, early neurological deterioration (END) remains frequent and is associated with poor…
- Conditions
- Anterior Cerebral Artery Syndrome, Anterior Cerebral Artery Stroke, Acute Ischemic Stroke, Cardioembolic Stroke
- Trial name
- NCT07013396
- Testing
- Transcranial Doppler (TCD) examination
- Where
- United States
- Volunteers
- 100 people
- Sponsor
- Virginia Commonwealth University
Aging
Breaks From Sedentary Behavior With Dual Tasks in Elderly
The aim of this project will be to compare the acute effects of breaks from sedentary behavior using dual-tasking on cerebral blood flow, vascular function, cognitive functions and blood pressure in elderly people.
- Trial name
- NCT06068374
- Testing
- Break of sedentary behavior with dual task, Break of sedentary behavior with walking
- Where
- Brazil
- Volunteers
- 27 people, healthy volunteers welcome
- Sponsor
- University of Nove de Julho
Orthostatic Hypotension, Spinal Cord Injuries
A Study of Blood Pressure and Blood Supply to the Brain in Persons With a Spinal Cord Injury.
The purpose of this study is to determine how blood pressure and blood flow are controlled during head-up tilt in a semi-upright position.
- Trial name
- NCT00248807
- Testing
- 1.25 mg enalaprilat IV, Head up tilt (HUT)
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- VA Office of Research and Development
Obesity
Ingestion of Lipids and Changes in Cerebral Blood Flow of People With Obesity
This study aims to determine changes in cerebral blood flow of people with obesity after the ingestion of fat.
- Trial name
- NCT02079116
- Testing
- 60 grams of fat plus water solution, Pure water
- Where
- Brazil
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Sao Paulo
Cardiac Rhythm Disorders, Urological Disorders
Product Surveillance Registry
The purpose of the Registry is to provide continuing evaluation and periodic reporting of safety and effectiveness of Medtronic market-released products.
- Conditions
- Cardiac Rhythm Disorders, Urological Disorders, Neurological Disorders, Cardiovascular Disorders
- Trial name
- PSR (NCT01524276)
- Where
- 402 sites in United States, Argentina and 39 more
- Volunteers
- 100,000 people
- Sponsor
- Medtronic
Aneurysm, AVM, Dural Arteriovenous Fistula, Glioma, Meningioma, Metastasis, Bypass
Intraoperative Laser Speckle Contrast Imaging of Cerebral Blood Flow
The purpose of the proposed study is to investigate the usefulness of laser speckle contrast imaging (LSCI) compared to indocyanine green angiography (ICGA).
- Trial name
- NCT05305378
- Testing
- Laser speckle contrast imaging (LSCI)
- Where
- United States
- Volunteers
- 8 people
- Sponsor
- Dynamic Light
Cardiovascular Diseases
Cardiac Rehab and Cerebral Blood Flow Study
This study is being done to better understand the influence of cardiovascular disease on brain blood flow regulation and cognitive function, determine whether exercise-based cardiac rehabilitation can lead to better regulation of…
- Trial name
- NCT05012878
- Testing
- Cardiac rehabilitation - high intensity interval training (HIIT), Cardiac rehabilitation - moderate intensity continuous training (MICT), Cardiac rehabilitation - control
- Where
- United States
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Cerebral Blood Flow
The Time Effects of a Berry Extract Upon Cerebral Blood Flow.
Berry fruits are widely recognised as natural functional food products. They contain several different phytochemicals which have potential to modulate human health and wellbeing.
- Trial name
- NCT01540123
- Testing
- Berry drink, Control
- Where
- United Kingdom
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Northumbria University
Cognitive Decline, Cognitive Dysfunction
Brain Vascular and Neurocognitive Health
The overall research objective of this proposal is to determine the acute and chronic impact of transcranial photobiomodulation on indices of cerebral vascular health and neurocognitive function.
- Conditions
- Cognitive Decline, Cognitive Dysfunction, Alzheimer Disease, Vascular Disease, Peripheral
- Trial name
- NCT06497413
- Testing
- Transcranial Photobiomodulation, Transcranial Photobiomodulation helmet (Neuradiant 1070 Plus) with no light administered
- Where
- United States
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- The University of Texas at Arlington
Coronary Artery Disease, Aortic Valve Stenosis
Comparative Analysis of the Microcirculation During Cardiac Surgery With Minimal Invasive Versus Conventional Extracorporeal Circulation
The aim of the proposed study is to evaluate microcirculatory alterations in patients undergoing open heart surgery with minimal invasive versus conventional extracorporeal circulation.
- Conditions
- Coronary Artery Disease, Aortic Valve Stenosis, Mitral Disease
- Trial name
- NCT05479188
- Testing
- Sublingual microscopy
- Where
- Greece
- Volunteers
- 60 people
- Sponsor
- Aristotle University Of Thessaloniki
Stroke
Effects of Limb Ischemic Postconditioning in Young sICAS
The purpose of this study is to evaluate the protective effects of upper limb ischemic postconditioning on collateral circulationin young symptomatic intracranial atherosclerosis and the baseline characteristics of trial…
- Trial name
- EPIC-sICAS (NCT02323425)
- Testing
- Remote ischemic postconditioning
- Where
- China
- Volunteers
- 100 people
- Sponsor
- Xi'an Jiaotong University
Reconstructive Surgical Procedures, Plastic Surgery
Leica Microsystems Sponsored Study to Collect and Confirm Clinical Data on the Performance of the GLOW800 Device When Used in Accordance With Its Intended Use.
This post-market clinical follow-up (PMCF) study aims to confirm the safety and performance of the GLOW800 surgical microscope accessory when used in conjunction with the ARveo8x surgical microscope.
- Conditions
- Reconstructive Surgical Procedures, Plastic Surgery, Vascular Surgical Procedure, Cerebrovascular Disorder
- Trial name
- IMED-GLOW800 (NCT07164040)
- Testing
- The GLOW800, a non-contact, non-invasive device, allows the surgical microscope ARveo 8 and ARveo 8X to produce excitation light and resolve fluorescence emission from the fluorescent agent ICG
- Where
- 3 sites in Portugal, Spain and 1 more
- Volunteers
- 31 people
- Sponsor
- Leica Microsystems (Schweiz) AG
Coronary Artery Disease, Acute Cerebrovascular Accident
Incidence of Acute Cerebrovascular Events Using Either Minimized or Standard Cardiopulmonary Bypass Circuit
The prospective, randomized, two centre study investigates acute cerebrovascular events during extracorporal circulation and the early post operative outcome when using either the minimized cardiopulmonary bypass circuit…
- Conditions
- Coronary Artery Disease, Acute Cerebrovascular Accident, Intracranial Embolism, Embolism, Air
- Trial name
- ROCsafeTM (NCT00862160)
- Testing
- ROCsafeTM
- Where
- 2 sites in Germany
- Volunteers
- 64 people
- Sponsor
- Hannover Medical School
Acute Ischemic Stroke
Pro-urokinase for Extended-Window Posterior Circulation Stroke
This study aims to evaluate whether, in patients with imaging-confirmed acute ischemic stroke of the posterior circulation presenting within 4.5-24 hours after symptom onset and not scheduled for endovascular thrombectomy…
- Trial name
- PROMISE (NCT07617870)
- Testing
- rhPro-UK, Aspirin
- Where
- China
- Volunteers
- 586 people
- Sponsor
- The First Affiliated Hospital of Zhengzhou University
Intracranial Hypertension, Cerebral Circulatory Failure
Cerebral Compliance Impairment in COVID-19
Several recent studies point to the possibility of the new coronavirus (SARS-Cov2), which currently causes pandemic COVID-19, to infiltrate the central nervous system (CNS) and cause primary damage to neural tissues, increasing…
- Trial name
- NCT04429477
- Testing
- Cerebral compliance and hemodynamics monitoring
- Where
- Brazil
- Volunteers
- 50 people
- Sponsor
- University of Sao Paulo
Endothelial Function, Cognition
Cognitive and Cerebral Blood Flow Effects of Vitamin C
This investigation is interested in the effects of high dose vitamin C on endothelial function in healthy humans. A high fat meal will be utilized to induce endothelial dysfunction.
- Trial name
- NCT01055418
- Testing
- Vitamin C
- Where
- United Kingdom
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Northumbria University