Clinical trials: Cerebrovascular Circulation
Cerebral Blood Flow
Cerebral Blood Flow Using Transfontanelle Ultrasound
We planned to evaluate cerebral blood flow and its association with age, blood pressure, and end tidal carbon dioxide in small pediatric using transfontanelle ultrasound during general anesthesia.
- Trial name
- NCT04070339
- Testing
- transfontanelle ultrasound
- Where
- South Korea
- Volunteers
- 200 people
- Sponsor
- Seoul National University Hospital
Cerebrovascular Circulation, Premature Infants
Automated Adjustment of Inspired Oxygen to Maintaining Regional Cerebral Oxygenation in Preterm Infants on Respiratory Support
Background: fluctuation of cerebral blood flow and oxygenation in neonates who undergo intensive care is an important risk factor for risk of neurodevelopmental impairment.
- Trial name
- NCT02748447
- Testing
- Automated FiO2 adjustment
- Where
- Italy
- Volunteers
- 60 people
- Sponsor
- ASST Fatebenefratelli Sacco
Cerebral Blood Flow
Cerebral Blood Flow in Term and Preterm Neonates Using Doppler Ultrasonography
This study aims to evaluate cerebral blood flow in stable term and preterm newborns using Doppler ultrasonography. By measuring and comparing PSV, EDV, RI, and PI in the main brain arteries, the study seeks to identify normal…
- Trial name
- NCT07427342
- Where
- Egypt
- Volunteers
- 200 people
- Sponsor
- Assiut University
Premature Birth, Extremely Low Birth Weight
DCS Study in Extremely Premature Newborns
The researchers are attempting to improve the cerebral monitoring of extremely low gestational age (ELGA) infants, such that in the future, real-time monitoring will be possible, to aid clinicians in management of these infants.
- Conditions
- Premature Birth, Extremely Low Birth Weight, Infant, Small for Gestational Age, Intracerebral Hemorrhage
- Trial name
- NCT04367181
- Testing
- Diffuse Correlation Spectroscopy (DCS), Amplitude Integrated Electroencephalography (aEEG)
- Where
- United States
- Volunteers
- 100 people
- Sponsor
- Maria Angela Franceschini
Sickle Cell Disease
Measurement of Cerebral Blood Flow Using Transcranial Doppler Ultrasound in Children With Sickle Cell Disease
Sickle cell disease (SCD) affects haemoglobin - the molecule in blood cells which carries oxygen. It causes red blood cells to become abnormal crescent (or sickle)- shaped.
- Trial name
- NCT02090881
- Testing
- Ultrasound scan
- Where
- United Kingdom
- Volunteers
- 25 people
- Sponsor
- Imperial College Healthcare NHS Trust
Intracranial Aneurysm
Study of Complex Intracranial Aneurysm Treatment
The investigator expects that endovascular flow-diversion is superior over revascularization by postoperative modified Rankin scale (mRS) in patients with complex intracranial aneurysms.
- Trial name
- SCAT (NCT03269942)
- Testing
- Endovascular Flow-Diversion, Cerebral Revascularization
- Where
- Russia
- Volunteers
- 110 people
- Sponsor
- Meshalkin Research Institute of Pathology of Circulation
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
Blood Flow, Cerebral Oxygenation
MRI Assesment of Cerebral Blood Flow in Anesthetized Children
Children undergoing magnetic resonance imaging (MRI) of the brain often need to be sedated to complete the examination, as it is difficult to remain still for a long period, which is required to obtain usable images.
- Conditions
- Blood Flow, Cerebral Oxygenation, Blood Pressure
- Trial name
- BAMBI (NCT06886698)
- Where
- Sweden
- Volunteers
- 30 people
- Sponsor
- Karolinska Institutet
Juvenile Neuronal Ceroid Lipofuscinosis, Smith-Lemli-Opitz Syndrome
Functional Near-Infrared Spectroscopy (fNIRS) Combined With Diffuse Correlation Spectroscopy (DCS) in Neurocognitive Disease as Compared to Healthy Neurotypical Controls
Background: Neurocognitive disorders affect how the brain uses oxygen. They may affect mental development in children. These disorders can be studied with imaging scans that use radiation; however, these methods are not ideal for…
- Conditions
- Juvenile Neuronal Ceroid Lipofuscinosis, Smith-Lemli-Opitz Syndrome, Creatine Transporter Deficiency, Niemann-Pick Disease Type C1
- Trial name
- NCT05642221
- Where
- United States
- Volunteers
- 73 people
- Sponsor
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
Premature Birth
Cerebral Blood Flow Parameters and Neurobehavioral Development in Infants at Term Age
Although several studies have contrasted the hemodynamics of cerebral arteries using cranial Doppler ultrasound between full-term and preterm infants, the assessments were mostly conducted in the first days of life.
- Trial name
- NCT00676247
- Where
- Taiwan
- Volunteers
- 1 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
Preterm Children
Neonatal Cerebral Blood Flow and the Neurobehavioral and Handedness Outcomes in Term and Preterm Adolescents
The results will provide insightful information to understand the process of neural development and the predictive value of early cerebral blood flow measures on longitudinal neurodevelopment and handedness outcomes in preterm…
- Trial name
- NCT04708652
- Testing
- No intervention
- Volunteers
- 190 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
Cerebrovascular Disorder, Healthy
Magnetic Resonance Imaging Studies of Motor and Thought Processes
Magnetic resonance imaging (MRI) is a diagnostic tool that creates high quality images of the human body without the use of X-ray (radiation).
- Conditions
- Cerebrovascular Disorder, Healthy, Movement Disorder, Nervous System Disease
- Trial name
- NCT00001361
- Where
- United States
- Volunteers
- 610 people, healthy volunteers welcome
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Stroke Ischemic, Stroke Acute
Posterior Circulation ASTRAL Prognostic Score
The goal of this study is to develop a prognostic score for ischemic posterior circulation strokes, based on our previous work on with the ASTRAL scores (Acute STroke Registry and Analysis of Lausanne) on overall stroke…
- Conditions
- Stroke Ischemic, Stroke Acute, Posterior Circulation Brain Infarction, Risk Score
- Trial name
- NCT05906420
- Testing
- ASTRAL prognostic score
- Where
- 2 sites in Greece, Switzerland
- Volunteers
- 2,000 people
- Sponsor
- University of Thessaly
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
Altitude Training Adaptation, Cognitive Function
Effects of Bicarbonate Spring Water Immersion on Cognitive Reliability and Post-Maximal Exercise Recovery in Adolescent Rowers During Altitude Training: A Sex-Stratified Three-Arm Randomized Controlled Trial
This randomized controlled trial aims to investigate the effects of hot spring bath therapy on cognitive function recovery, cerebral hemodynamics, and athletic performance in athletes undergoing altitude training.
- Conditions
- Altitude Training Adaptation, Cognitive Function, Cerebral Hemodynamics, Exercise Performance
- Trial name
- NCT07608913
- Testing
- Control Group：Natural Recovery, Hot water immersion group, hot spring immersion group
- Where
- China
- Volunteers
- 27 people, healthy volunteers welcome
- Sponsor
- Macao Polytechnic University
Brain Injuries, Cerebrovascular Disorders
Measuring Blood Flow Characteristics Using Dynamic Contrast Enhanced Magnetic Resonance Imaging
Dynamic contrast-enhanced (DCE) MRI gives quantitative and semi-quantitative information about the integrity of the vascular system and can be used to quantify blood-brain barrier (BBB) integrity.
- Trial name
- NCT02702635
- Testing
- DCE MRI of the brain
- Where
- United States
- Volunteers
- 53 people, healthy volunteers welcome
- Sponsor
- Loma Linda University
Infant, Very Low Birth Weight, Infant, Premature, Diseases
Regulation of Cerebral Blood Flow in Very Low Birth Weight Infants
Advances in newborn intensive care have lead to dramatic improvements in survival for the most premature infants-often weighing 1 pound at birth.
- Conditions
- Infant, Very Low Birth Weight, Infant, Premature, Diseases, Cerebral Hemorrhage
- Trial name
- NCT00579943
- Where
- United States
- Volunteers
- 200 people
- Sponsor
- University of Arkansas
Anesthesia, Anesthesia; Reaction
Individual Cerebral Hemodynamic Oxygenation Relationships
This is a randomized controlled trial in patients who require clinical anesthesia. The main purpose of this study is to understand whether there are differences in the cerebral blood flow, and oxygen metabolism affected by two…
- Trial name
- ICHOR (NCT04435834)
- Testing
- Propofol or Sevoflurane
- Where
- United States
- Volunteers
- 30 people
- Sponsor
- Matthew Borzage
Heart Failure, Left-Sided, Heart Failure, Right-Sided
Central and Cerebral Circulation in Early Stages After LVAD Implantation
This trial will evaluate patients with a mechanical Left Ventricular Assist Device (LVAD) in early stages after surgical implantation.
- Trial name
- ECOH3 (NCT03087669)
- Testing
- LVAD flow velocity setting-Rounds per Minute(RPM) on HeartMate III®, MAP intervention using Noradrenalin
- Where
- Sweden
- Volunteers
- 20 people
- Sponsor
- Sahlgrenska University Hospital
Multiple Sclerosis
The Effect of Sildenafil Citrate (Viagra® (Registered Trademark)) on Brain Blood Flow in Multiple Sclerosis Patients
This study will determine whether sildenafil citrate, commonly known as Viagra, can cause increased blood flow to the brain in a wide range of multiple sclerosis (MS) patients, including women.
- Trial name
- NCT00094068
- Where
- United States
- Volunteers
- 76 people, healthy volunteers welcome
- Sponsor
- National Institutes of Health Clinical Center (CC)