Clinical trials: Cerebral Blood Flows
Cardiovascular System
Effects of Caffeine on Cerebral Blood Flow
The goal of this clinical trial is to evaluate in clinically healthy young people if: after caffeine ingestion, there are variations in blood velocity of the middle cerebral arteries (VMCA), this variation is dependent on the…
- Trial name
- NCT05866848
- Testing
- Anhydrous caffeine (45mg), Anhydrous caffeine (120mg)
- Where
- Portugal
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Escola Superior de Tecnologia da Saúde de Coimbra
Mild Stroke, Acute Ischemic Stroke
Endovascular Treatment for Mild Stroke With Acute Anterior Circulation Large Vessel Occlusion
Exploring the Efficacy and Safety of Emergent Endovascular Treatment in Patients with Mild Ischemic Stroke Caused by Acute Anterior Circulation Large Vessel Occlusion based on Perfusion Imaging Screening
- Conditions
- Mild Stroke, Acute Ischemic Stroke, Endovascular Treatment, Perfusion Imaging
- Trial name
- NCT06179017
- Testing
- Experimental group:Intervention Group, Control group:best medical treatment
- Where
- China
- Volunteers
- 300 people
- Sponsor
- Zhangzhou Municipal Hospital
Shouldersurgery
Assessing Cerebral Blood Flow Autoregulation During Surgery in the Head-up Position
Neurological injury after elective shoulder surgery in the beach chair position is thought to result from cerebral hypoperfusion and should therefore be preventable by appropriate hemodynamic monitoring and management.
- Trial name
- NCT01225185
- Where
- United States
- Volunteers
- 240 people
- Sponsor
- Johns Hopkins University
Hypoglycemia, Cerebral Blood Flow
External Carotid Blood Flow in Individuals With Post-Bariatric Hypoglycemia
This is a pilot study (small-scale study) that aims to understand more about how blood flow changes in people who have low blood sugar after bariatric surgery (post-bariatric hypoglycemia) compared to those who have had surgery…
- Trial name
- NCT07082478
- Testing
- in-ear device measuring blood flow
- Where
- United States
- Volunteers
- 5 people, healthy volunteers welcome
- Sponsor
- Joslin Diabetes Center
Cerebrovascular Disorder
Aneurysms and Carotid Artery Block in Newborns
This study will determine the risk of brain aneurysm (abnormal outpouching of a brain artery) in young adults who had their carotid artery tied off as an infant as part of the extracorporeal membrane oxygenation (ECMO) procedure.
- Trial name
- NCT00646672
- Where
- United States
- Volunteers
- 6 people
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Stroke
Combined Effects of LIRT-BFR Therapy in Post- Stroke Patients
Stroke is a focal neurological deficit of sudden onset, with symptoms lasting more than 24 hours leading to consequences like impacting physical abilities, cognitive functions and emotional well-being, speech and language…
- Trial name
- NCT07646418
- Testing
- Low intensity resistance training with Blood flow restriction therapy, Conventional Physical Therapy Protocol
- Where
- Pakistan
- Volunteers
- 64 people
- Sponsor
- Riphah International University
Social Phobia
A Study To Compare Emotional Changes In Subjects With Social Anxiety Disorder
To compare by neuroimaging techniques the way Social Anxiety patients respond to public speaking before and after a drug administration
- Trial name
- NCT00470483
- Testing
- Paroxetine treatment during 8 weeks
- Where
- Spain
- Volunteers
- 56 people, healthy volunteers welcome
- Sponsor
- GlaxoSmithKline
Traumatic Brain Injury, Intracranial Hypertension
Investigating CBF and ICP Using DCS
We aim to acquire data using DCS on patients who are undergoing invasive ICP and ABP monitoring on ITU as part of their normal treatment. Data will then be correlated to derive various parameters including CBF and BFI.
- Trial name
- ICP-CBF (NCT06039098)
- Testing
- DCS
- Where
- United Kingdom
- Volunteers
- 17 people
- Sponsor
- Queen Mary University of London
Stroke
Augmenting Cerebral Blood Flow in Acute Ischemic Stroke
The most common type of stroke is ischemic (lack of blood flow to the brain due to a clot blocking a blood vessel). Time is brain and an average of 1.9 million brain nerve cells per minute are destroyed in patients experiencing a…
- Trial name
- NCT06911385
- Testing
- Arm Remote Ischemic Conditioning plus Pneumatic Compression lower limb
- Volunteers
- 150 people
- Sponsor
- University of Alberta
Acute Ischemic Stroke
Efficacy and Safety of Tenecteplase Intravenous Thrombolysis in Acute Posterior Circulation Ischemic Stroke Within 4.5-24 Hours After Onset
This study aims to evaluate the efficacy and safety of tenecteplase (TNK) intravenous thrombolysis within the extended time window (4.5 to 24 hours) in patients with acute posterior circulation ischemic stroke.
- Trial name
- NCT07094763
- Testing
- TNK plus standard medical treatment, standard medical management
- Where
- China
- Volunteers
- 406 people
- Sponsor
- The First Affiliated Hospital of University of Science and Technology of China
Aortic Diseases, Cardiac Surgical Procedures
Selective Antegrade Cerebral Perfusion and Perioperative Optic Nerve Sheath Diameter in Ascending Aortic Surgery
In ascending aortic surgery the distal anastomosis may be constructed with the aortic cross-clamp maintained, or, where the extent of the aortic pathology and the geometry of the graft require it, after release of the cross-clamp…
- Conditions
- Aortic Diseases, Cardiac Surgical Procedures, Aortic Aneurysm, Thoracic, Delirium - Postoperative
- Trial name
- SACP-ONSD (NCT07800806)
- Testing
- Optic nerve sheath and optic nerve diameter ultrasonography, Transcranial Doppler ultrasonography
- Where
- Turkey (Türkiye)
- Volunteers
- 134 people
- Sponsor
- Koşuyolu Kartal Heart Training and Research Hospital
Congenital Heart Disease
Cerebral Oximetric Monitoring of the Posterior Circulation
One known risk of pediatric heart surgery is the possibility for brain damage. This problem results from a lack of oxygen rich blood flow to the brain during surgery.
- Trial name
- CerebralOx (NCT00751712)
- Testing
- Cerebral oximeter sensor
- Where
- United States
- Volunteers
- 13 people
- Sponsor
- Children's Hospitals and Clinics of Minnesota
Infarction, Middle Cerebral Artery, Infarction, Anterior Cerebral Artery
Effect of Mesenchymal Stem Cells(MSCs) Transplantation for Acute Cerebral Infarction Patients
This is a placebo controlled, randomized, double blinded study including Phase 1 and Phase 2. Phase I study is a safety assessment and Phase 2 study is incline to assess effectiveness of MSCs.
- Conditions
- Infarction, Middle Cerebral Artery, Infarction, Anterior Cerebral Artery, Cerebral Infarction, Stroke, Ischemic
- Trial name
- NCT04093336
- Testing
- human umbilical cord mesenchymal stem cells, standardized treatment
- Where
- China
- Volunteers
- 120 people
- Sponsor
- Shanghai East Hospital
Cognitive Change
Cognitive and Cerebral Blood Flow Effects of Zanthozylum Armatum Fruit Extract in Healthy Adults Aged 30 - 55
Zanthozylum armatum (Z. armatum)-otherwise known as Nepalese pepper, or timut-is an perennial shrub found in India and across Southeast Asia. Preparations of the bark, fruit and seeds of Z.
- Trial name
- NCT03673930
- Testing
- Zanthozylum armatum
- Where
- United Kingdom
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Northumbria University
Cerebral Ischemia
Desflurane Versus Propofol in the Sitting Position
The investigators hypothesized that both propofol and desflurane would decrease the regional oxygen saturation (rSO2) but propofol is likely to reduce rSO2 more than sevoflurane when patients are raised to the sitting position.
- Trial name
- NCT01436799
- Testing
- propofol, Desflurane, alfentanil
- Volunteers
- 40 people
- Sponsor
- Gachon University Gil Medical Center
Cerebrovascular Circulation
Cerebral Perfusion in Hypothermic Circulatory Arrest
Selective antegrade cerebral perfusion (sACP) during aortic arch surgery in hypothermic circulatory arrest (HCA) is an established method for intraoperative neuroprotection.
- Trial name
- NCT03484104
- Testing
- Measurement of tissue oxygenation index (TOI)
- Where
- 2 sites in Switzerland
- Volunteers
- 40 people
- Sponsor
- Insel Gruppe AG, University Hospital Bern
Spinal Cord Injury, Autonomic Dysreflexia
Treatment of Post-SCI Hypotension
While treatment strategies for OH have been identified for use in persons with acute SCI, the field of SCI medicine lacks a gold standard for treatment thresholds and well-defined outcome parameters.
- Conditions
- Spinal Cord Injury, Autonomic Dysreflexia, Orthostatic Hypotension, Baroreceptor Integrity
- Trial name
- NCT02919917
- Testing
- Midodrine Hydrochloride
- Where
- 2 sites in United States
- Volunteers
- 66 people, healthy volunteers welcome
- Sponsor
- James J. Peters Veterans Affairs Medical Center
Heart Failure With Reduced Ejection Fraction
Lumacaftor Yields Reversal of Impaired Cerebral Blood Flow in Heart Failure Patients
Cognitive impairment (CI) is highly prevalent in patients with heart failure with reduced ejection fraction (HFrEF), which has significant implications for disease management, quality of life and clinical outcomes.
- Trial name
- LYRIC-HF (NCT07695090)
- Testing
- Lumacaftor 200 MG
- Where
- 2 sites in Canada
- Volunteers
- 60 people
- Sponsor
- Qanatpharma AG
Congenital Heart Defect, Cerebrovascular Circulation
A Pilot Study- Monitoring Cerebral Blood Flow in Neonates With Congenital Heart Defects
Congenital heart defects have an incidence of 9/1000 live births. Infants with congenital heart defects such as Transposition of Great Arteries / Hypoplastic Left Heart are at risk for brain injury because of concomitant brain…
- Trial name
- NCT03512613
- Testing
- c-FLOW 3310-P
- Where
- Israel
- Volunteers
- 55 people
- Sponsor
- Ornim Medical
Postoperative Cognitive Dysfunction
Cerebral Oximetry and Neurological Outcomes in Aortic Arch Surgery Patients
The investigators hypothesize that early intervention to optimize regional cerebral oxygenation detected by cerebral oximetry monitoring during deep hypothermic circulatory arrest (DHCA) for patients undergoing aortic surgery…
- Trial name
- NCT01149148
- Testing
- INVOS Somanetics Cerebral Oximeter
- Volunteers
- 25 people
- Sponsor
- University of Michigan