Clinical trials: Cerebral Hypoperfusion
Intracranial Neoplasm, Hyperlactatemia
The Relationship of Anesthesia Method With Serum Lactate Level in Craniotomies
The investigators aimed to research the incidence of hyperlactatemia in craniotomy cases, the relationship of lactate elevation with tumor type and other factors that may be related, and whether the general anesthesia method…
- Conditions
- Intracranial Neoplasm, Hyperlactatemia, Brain Tumor, Hypoperfusion
- Trial name
- NCT05145049
- Where
- Turkey (Türkiye)
- Volunteers
- 110 people, healthy volunteers welcome
- Sponsor
- Ankara Diskapi Training and Research Hospital
Perioperative/Postoperative Complications, Postoperative Cognitive Dysfunction
CEReBral AutorEgulation in Non-cardiac SuRgery and Relationship to Postoperative DeliriUm State
The goal of this observational study is to learn the how to determine the mean arterial pressure(MAP) or blood pressure level to be maintained during non-cardiac surgery for optimal brain health in patients above the age of 60…
- Conditions
- Perioperative/Postoperative Complications, Postoperative Cognitive Dysfunction, Postoperative Delirium, EEG With Periodic Abnormalities
- Trial name
- CERBERUS (NCT06133842)
- Testing
- Intra-op EEG and CO data collection
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Beth Israel Deaconess Medical Center
Cardiovascular Disease, Arterial Stiffness
Natural History Study of CADASIL
Background: CADASIL (cerebral autosomal dominant arteriopathy with subcortical infarct and leukoencephalopathy) is a genetic disorder. It causes narrowing of the small blood vessels and can lead to strokes and dementia.
- Conditions
- Cardiovascular Disease, Arterial Stiffness, Germline Mutation in the NOTCH 3 Gene, Pathogenesis of CADASIL
- Trial name
- NCT05072483
- Testing
- MRI
- Where
- United States
- Volunteers
- 155 people, healthy volunteers welcome
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
Microvascular Disease, Microvascular Complications
Test of Reproducibility of [15O]H20-PET Assessment of Brain Perfusion
In the aging population, ischemic heart disease, stroke and dementia are increasingly prevalent. Diagnosis and treatment of the former two i.e., large-vessel coronary heart disease and endovascular thrombectomy of the brain in…
- Conditions
- Microvascular Disease, Microvascular Complications, Diabetes Mellitus Type 2, Cerebral Hypoperfusion
- Trial name
- SVAT (NCT06624267)
- Testing
- PET
- Where
- Denmark
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- University Hospital Bispebjerg and Frederiksberg
Carotid Artery Disease, Carotid Artery Stenosis
Effect of Raised CBF During CEA on Cognition in DM Patients
The purpose of this study is to determine if we can reduce the incidence of cognitive dysfunction - difficulty in performing certain pencil-paper, memory, finger dexterity and thinking type of tasks called neuropsychometric tests…
- Conditions
- Carotid Artery Disease, Carotid Artery Stenosis, Diabetes, Cognitive Dysfunction
- Trial name
- NCT00597545
- Testing
- Carotid endarterectomy, Shunt
- Where
- United States
- Volunteers
- 10 people
- Sponsor
- Columbia University
Heart Failure, Dilated Cardiomyopathy
Brain Function and Perfusion in Patients With Heart Failure
The investigators will evaluate the determinants of cerebral impairment in patients with non-ischemic heart failure compared to controls, and its relation to cognitive function.
- Conditions
- Heart Failure, Dilated Cardiomyopathy, Perfusion, Cognitive Impairment
- Trial name
- BRAIN-HF (NCT01756014)
- Where
- Netherlands
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- University Medical Center Groningen
Multiple Sclerosis
Transcranial Doppler in Multiple Sclerosis
The aim of this study is to investigate the potential of Transcranial doppler (TCD) and Near-Infrared Spectroscopy (NIRS), more simple and non-invasive bedside methods than magnetic resonance imaging (MRI), to evaluate changes in…
- Trial name
- TRADOMS (NCT02389426)
- Testing
- TCD baseline, TCD after bosentan administration, NIRS baseline
- Where
- Belgium
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Universitair Ziekenhuis Brussel
Cerebral Hypoperfusion, Cerebral Occlusion
Evaluation of Cerebral Blood Flow and Cerebral Oxygenation With Transcranial Doppler and NIRS in Laparoscopic Cholecystectomy Cases
The goal of this clinical trial is to test intracranial blood flow and cerebral oxygenisation changes in patients who have pneumoperitoneum in laparoscopic cholecystectomy procedure.
- Conditions
- Cerebral Hypoperfusion, Cerebral Occlusion, Cholecystitis; Gallstone, Cholecystitis/Cholelithiasis
- Trial name
- NIRS L/C (NCT06036498)
- Testing
- Near Infrared Spectrophotometry Device, Transcranial Doppler Ultrasonography
- Where
- Turkey (Türkiye)
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Uludag University
Hypertension, Frailty
The Effects of Medication Induced Blood Pressure Reduction on Cerebral Hemodynamics in Hypertensive Frail Elderly
Rationale: Systolic hypertension represents the leading risk for burden of disease among older adults (age >70 years), with an increasing prevalence due to the increase in lifespan.
- Conditions
- Hypertension, Frailty, Old Age; Dementia, Orthostatic Intolerance
- Trial name
- BLUEBERRY (NCT05529147)
- Testing
- Antihypertensive Agents
- Where
- Netherlands
- Volunteers
- 15 people
- Sponsor
- Radboud University Medical Center
Acute Ischemic Stroke
Hypoperfusion-hypodensity Mismatch for the Identification of Patients With Stroke Within 4.5 Hours
Intravenous thrombolysis is recommended within 4.5 hours of stroke onset. The aim of the study is to evaluate whether a hypodensity on native CT within the virtually entire area of hypoperfusion on perfusion CT, i.e.
- Trial name
- MissPerfeCT (NCT04277728)
- Testing
- hypoperfusion-hypodensity mismatch
- Where
- Germany
- Volunteers
- 689 people
- Sponsor
- University Hospital Muenster
Magnetic Resonance Imaging, Cerebrovascular Circulation
Brain Blood Vessel Responses to Changes in Blood Flow: Younger Cohort
Brain blood flow will be measured during a simulated postural change test and while breathing increased levels of carbon dioxide using magnetic resonance imaging.
- Trial name
- NCT06629090
- Testing
- MRI, Prazosin
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Magnetic Resonance Imaging, Cerebrovascular Circulation
Brain Blood Vessel Responses to Changes in Blood Flow
Brain blood flow will be measured during a simulated postural change test and while breathing increased levels of carbon dioxide using magnetic resonance imaging.
- Trial name
- NCT06629077
- Testing
- MRI, Prazosin
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Subarachnoid Hemorrhage
Contrast Enhanced Ultrasound Imaging for Cerebral Perfusion Measurement in Cerebral Vasospasm After SAH
The objective of the study is to assess brain tissue perfusion by ultrasound perfusion imaging. Specifically to diagnose brain tissue hypoperfusion due to CVS with contrast enhanced UPI and to assess specificity and sensitivity…
- Trial name
- NCT02907879
- Where
- Switzerland
- Volunteers
- 54 people
- Sponsor
- Insel Gruppe AG, University Hospital Bern
Cerebral Hypoperfusion
Real-Time Decision Support for Improving Intraoperative Cerebral Perfusion Pressure
Across broad surgical populations, cerebral hypoperfusion is associated with increased mortality, stroke, brain cellular injury, and poor functional outcomes.
- Trial name
- NCT03285971
- Testing
- Electronic CPP pager alert
- Where
- United States
- Volunteers
- 53 people
- Sponsor
- University of Michigan
Carotid Artery Stenosis Symptomatic, Carotid Endarterectomy (CEA) Surgical Patients
Correlation Between Carotid Stump Pressure and Interhemispheric rSO₂ Asymmetry During Awake Carotid Endarterectomy
This study aims to better understand how well the brain is perfused (supplied with blood and oxygen) during a specific type of surgery called carotid endarterectomy (CEA), which is performed to prevent strokes in people with…
- Conditions
- Carotid Artery Stenosis Symptomatic, Carotid Endarterectomy (CEA) Surgical Patients, Cerebral Hypoperfusion
- Trial name
- NCT07150260
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people
- Sponsor
- Izmir Katip Celebi University
Cerebral Injury
Cerebral Hypoperfusion at Transcranial Color-Coded Doppler.
Background. Cerebral ischemia is a major secondary factor contributing to worsening outcomes in patients with acute brain injuries.
- Trial name
- IPOPERT (NCT06607211)
- Testing
- Transcranial Color-Coded Doppler (TCCD)
- Where
- Italy
- Volunteers
- 100 people
- Sponsor
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS
Epilepsy, Depression
Measuring Blood Flow in the Brain After Epileptic Activity
In this clinical trial, postictal phenomena (i.e., headache, delirium) will be investigated after administration of acetaminophen and nimodipine in depressed patients receiving electroconvulsive therapy (ECT).
- Conditions
- Epilepsy, Depression, Postictal Delirium, Electroconvulsive Therapy
- Trial name
- SYNAPSE (NCT04028596)
- Testing
- Paracetamol, Nimotop
- Where
- Netherlands
- Volunteers
- 34 people
- Sponsor
- Rijnstate Hospital
Moyamoya Syndrome, Moyamoya Disease
A Study of Cerebral Perfusion With tDCS in Chronic Hypoperfusion
This study is being done to examine whether transcranial direct current stimulation (tDCS) will increase cerebral blood flow which may provide a clinical benefit such as improving cognitive impairment.
- Conditions
- Moyamoya Syndrome, Moyamoya Disease, Atheroscleroses, Cerebral
- Trial name
- NCT06477107
- Testing
- Soterix® 4x1HD-TDCS, Soterix® 1x1 tDCS, Cognitive training program
- Where
- United States
- Volunteers
- 7 people
- Sponsor
- Mayo Clinic
Healthy, Vasodilation
Impact of Intranasal Insulin on Sympathetic Activity and Cerebral Vasodilation
The purpose of this project is to examine the impact of increases in brain insulin on sympathetic nervous system activity, as well as peripheral and cerebral blood flow in humans.
- Conditions
- Healthy, Vasodilation, Insulin Resistance, Autonomic Dysfunction
- Trial name
- NCT05153395
- Testing
- Carbon dioxide breathing, Neurovascular Coupling, Human insulin
- Where
- United States
- Volunteers
- 65 people, healthy volunteers welcome
- Sponsor
- University of Missouri-Columbia