Clinical trials: Hypoperfusion, open to volunteers
Multiple Sclerosis
Transcranial Electrical Stimulation in Multiple Sclerosis
First the investigators will examine if the blood flow in the brain is different in patients with Multiple Sclerosis compared to healthy volunteers. HOW? The blood flow of the subjects is imaged by use of a special MRI-technique.
- Trial name
- TEMS (NCT06966128)
- Testing
- transcranial Direct Current Stimulation
- Where
- 2 sites in Belgium
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Universitair Ziekenhuis Brussel
Traumatic Brain Injury
Inhaled Nitric Oxide for Microvascular Dysfunction in Traumatic Brain Injury
Traumatic brain injury (TBI) causes acute deficits in cerebral perfusion which may lead to secondary injury and worse outcomes. Inhaled nitric oxide (iNO) is a vasodilator that increases cerebral blood flow and is clinically used…
- Trial name
- NCT05616910
- Testing
- inhaled nitric oxide
- Where
- United States
- Volunteers
- 38 people
- Sponsor
- University of Pennsylvania
Cardiac Surgery Requiring Cardiopulmonary Bypass
Oxygen Consumption, Hypoperfusion and Organ Injury After Cardio-pulmonary Bypass
The goal of this observational study is to understand how oxygen consumption after heart surgery relates to blood flow problems and organ injury.
- Trial name
- VO2-EPOC (NCT06930443)
- Testing
- Oxygen consumption measurement
- Where
- Sweden
- Volunteers
- 65 people
- Sponsor
- Uppsala University Hospital
Microcirculatory Dysfunction, Tissue Hypoperfusion
Submental Tissue Oxygenation and Arterial Lactate in Major Surgery
During major surgical procedures performed under general anesthesia, changes in blood flow and oxygen delivery to tissues may occur due to blood loss, hemodynamic fluctuations, and anesthesia-related physiological effects.
- Conditions
- Microcirculatory Dysfunction, Tissue Hypoperfusion, Microcirculatory Status, Microvascular Circulation
- Trial name
- NCT07399275
- Testing
- No intervention. This is a prospective observational study. Near-infrared spectroscopy measurements are performed for monitoring purposes only and do not influence clinical management.
- Where
- Turkey (Türkiye)
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Bursa Sevket Yilmaz Training and Research Hospital
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
SEPSIS, Septic Patients
Peripheral Perfusion and Outcomes in ICU Patients With Sepsis
People with sepsis who are treated in the intensive care unit (ICU) often have impaired blood flow to the skin and other tissues.
- Trial name
- PERFUSE-ICU (NCT07391098)
- Testing
- PERIPHERAL PERFUSION EVALUATION
- Where
- Romania
- Volunteers
- 80 people
- Sponsor
- Alexandra Elena Lazăr
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
Velocity-time Integral Measurement, Critically Ill Patients
Reliability of Minimally Trained Operator's Velocity-Time Integral Measurement Guided by Artificial Intelligence VTI
Stroke volume is a major determinant of tissue perfusion and therefore a key parameter to monitor in patients with hemodynamic instability and hypoperfusion.
- Conditions
- Velocity-time Integral Measurement, Critically Ill Patients, Tissue Hypoperfusion
- Trial name
- MiniTrainedVTI (NCT06486467)
- Testing
- Fluid challenge (cristalloids) OR passive leg raising
- Where
- 3 sites in France
- Volunteers
- 100 people
- Sponsor
- Assistance Publique - Hôpitaux de Paris
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
Brain Injuries, Traumatic, Brain Injuries, Acute
Critical Hyperacute Assessment Research On Neurobiomarker Kinetics in Acute Brain Injury
Traumatic brain injury (TBI) and other conditions that reduce blood flow to the brain - such as cardiac arrest (CA) - are life-threatening medical emergencies.
- Conditions
- Brain Injuries, Traumatic, Brain Injuries, Acute, Hypoxia, Brain, Cardiac Arrest (CA)
- Trial name
- CHARON (NCT07782216)
- Where
- 4 sites in Hungary
- Volunteers
- 477 people
- Sponsor
- University of Pecs
Acute Kidney Injury, Fluid Overload
Volume Removal Intolerance During Net Ultrafiltration in Acute Kidney Injury Patients
Acute kidney injury (AKI) is common in critically ill patients and is frequently associated with fluid overload, which can worsen clinical outcomes.
- Conditions
- Acute Kidney Injury, Fluid Overload, Fluid Overload in Dialysis Patients, Critical Illness
- Trial name
- VINKO (NCT07643597)
- Where
- 10 sites in Brazil, Chile and 5 more
- Volunteers
- 128 people
- Sponsor
- Hospital Las Higueras
Microvascular Disease, Microvascular Complications
Comparison of Differencens in VO2-max, Perfusion of the Heart and Brain and Cognitive Performance Between Patients with Type 2 Diabetes and Healthy Age Matched Controls.
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, Dementia, Diabetes Mellitus Type 2
- Trial name
- SVAT (NCT06628297)
- Testing
- PET
- Where
- Denmark
- Volunteers
- 72 people, healthy volunteers welcome
- Sponsor
- University Hospital Bispebjerg and Frederiksberg
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)
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
Septic Shock, Hypoperfusion
Early Methylene Blue in the Microhemodynamics of Septic Patients
The aim of the study is to evaluate the viability and feasibility of its protocol in order to conduct a larger clinical trial to assess whether methylene blue can improve patient-centered clinical outcomes such as mortality or…
- Trial name
- NCT07264543
- Testing
- Methylene blue infusion
- Where
- Brazil
- Volunteers
- 50 people
- Sponsor
- Centro de Estudos e Pesquisa em Emergencias Medicas e Terapia Intensiva
Cerebral Hypoperfusion, Hypotension
The Effect of Controlled Hypotension
Controlled hypotension is currently used in spinal surgery to reduce bleeding at the surgical site, improve the surgeon's visibility, and decrease intraoperative blood loss.
- Trial name
- NIRS (NCT06928870)
- Testing
- MAP 55-65 mmHg, MAP 66-75 mmHg
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people
- Sponsor
- Ankara Etlik City Hospital
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
Critical Illness, Diabetes Mellitus
Central Venous vs Arterial Blood Gas and CO2 Gap in Critically Ill Patients With and Without Diabetes
Frequent monitoring of acid-base status, ventilation, and tissue oxygenation is essential for managing critically ill patients in the intensive care unit (ICU).
- Conditions
- Critical Illness, Diabetes Mellitus, Acid-Base Imbalance, Tissue Hypoperfusion
- Trial name
- NCT07799727
- Volunteers
- 100 people
- Sponsor
- Assiut University