Clinical trials: Blood Circulation
Amnesia, Dementia
Magnetic Resonance Imaging for the Study of Patients With Neurological Disorders
This study is divided into two parts. The first part of the study will use MRI technology to view the brain structure of patients with neurological disorders and normal volunteers.
- Conditions
- Amnesia, Dementia, Healthy, Nervous System Disease
- Trial name
- NCT00001362
- Where
- United States
- Volunteers
- 830 people, healthy volunteers welcome
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Concussion
Vascular Assessment of Regulation Index Arrays Registry
The objective of this patient registry is to collect and analyze physiological data associated with baseline and brain injury identified in standard clinical practice (Normal Values, Recovery Curves, Correlation between Symptoms…
- Trial name
- VARIA (NCT02435082)
- Where
- United States
- Volunteers
- 13 people, healthy volunteers welcome
- Sponsor
- NeuroChaos Solutions, Inc.
Fabry Disease, Healthy
PET Scans in Normal Volunteers and Patients With Fabry Disease
This study will determine the rate of sugar metabolism in the brain of patients with Fabry disease, a genetic disease of abnormal lipid metabolism.
- Trial name
- NCT00005111
- Where
- United States
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Anesthesia, General, Infant
Impact of CO2 on Cerebral Blood Flow in Infants Less Than 6 Months During General Anaesthesia
The study aims at assessing cerebral blood flow variations following expired CO2 variations in anaesthetized infants less than 6 months, during a routine general anesthesia.
- Trial name
- NCT03567031
- Testing
- EtCO2 modification
- Where
- Canada
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- St. Justine's Hospital
Mean Blur Ratio
Isometric Exercise in NTG
Glaucoma is the second leading cause of blindness worldwide. Literature shows increasing evidence that dysfunction of ocular microcirculation in the optic nerve influences the progression of glaucoma.
- Trial name
- NCT03921372
- Testing
- Isometric exercise
- Where
- Austria
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Augenabteilung Allgemeines Krankenhaus Linz
Acute Lymphoblastic Leukemia, Bloodstream Infection
The Role of NK Cells to Detect Blood Infection in ALL.
1. Assess possibility of prediction of blood stream infections in ALL patients by profiling of NK cells using flow cytometry. 2. Assess the role of NK cells in development of drug resistance post chemotherapy.
- Trial name
- NCT06160115
- Testing
- Flow cytometry
- Volunteers
- 56 people, healthy volunteers welcome
- Sponsor
- Assiut University
Cervical Cancer, Cervical Intraepithelial Neoplasm
The Role of Blood Perfusion in Cervical Cancer, Cervical Intraepithelial Neoplasm and Ovarian Cancer Patients
This study will elucidate the role of 3D transvaginal ultrasound in assessing (1) cervical vascularity and blood flow in patients with cervical cancer and cervical intraepithelial neoplasm, and (2) tumor vascularity and blood…
- Conditions
- Cervical Cancer, Cervical Intraepithelial Neoplasm, Ovarian Cancer
- Trial name
- NCT07385976
- Testing
- Doppler ultrasound
- Where
- 2 sites in Taiwan
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Far Eastern Memorial Hospital
Pregnancy Related, Fetal; Circulation
Doppler Ultrasonographic Assessment of Fetal Internal Thoracic Artery Indexes
The aim of this study is to assess the feasibility of visualizing the internal thoracic artery (ITA), establishing the normogram for ITA pulsatility index (PI), resistance index (RI) and acceleration/ejection time (AT/ET) at…
- Trial name
- NCT04686240
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Ankara City Hospital Bilkent
Hemiplegia and/or Hemiparesis Following Stroke
The Effect of Blood Flow Restriction Training on Lower Limb Motor Function in Stroke Patients With Hemiplegia
flow restriction training combined with routine rehabilitation training can promote the recovery of lower limb muscle strength on the hemiplegic side of stroke patients, improve the lower limb motor function of patients, and…
- Trial name
- NCT06461013
- Testing
- Blood flow restriction
- Where
- China
- Volunteers
- healthy volunteers welcome
- Sponsor
- Yunhong Tian
Persistent Pulmonary Hypertension of Newborn
N-Terminal Pro-brain Natriuretic Peptide Hormone and Persistent Pulmonary Hypertension
Babies who are suspected of having persistent pulmonary hypertension (PPHN) will be included in this study. PPHN is a condition in which the blood is restricted from flowing to the lungs in a normal way making it hard for babies…
- Trial name
- NCT00443859
- Where
- 2 sites in United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Christiana Care Health Services
Resistance Training, Recovery
Blood Flow Restriction and Recovery in Soccer Players
The objective is to evaluate the effects of blood flow restriction training on the post-competition recovery of professional and semi-professional soccer players.
- Trial name
- NCT05097027
- Testing
- Blood flow restriction recovery, Active recovery
- Where
- Spain
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University of the Balearic Islands
Cerebrovascular Regulation
Brain Blood Flow Responses at Rest and During Exercise
Tight regulation of brain blood flow is integral for delivery of oxygen and energy for survival. During childhood, the brain has a twofold higher metabolic requirement, thus requires greater blood flow to match this.
- Trial name
- NCT06142045
- Testing
- RespirACT RA-MR System
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- University of British Columbia
Central Serous Chorioretinopathy
Optical Coherence Tomography Angiography (OCT-A) and Central Serous Chorioretinopathy (CSC)
Optical Coherence Tomography Angiography (OCT-A) is a noninvasive imaging technique that allows one to see blood vessels in the retina.
- Trial name
- OPACITY (NCT03950089)
- Testing
- Optical Coherence Tomography Angiography (OCT-A)
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Hospices Civils de Lyon
Patent Ductus Arteriosus, Persistent Pulmonary Hypertension of the Newborn
Plethismographic Perfusion Index in Neonates
Photoplethismography will be measured and compared in newborns suffering from patent ductus arteriosus and normal controls.
- Trial name
- NCT02380040
- Testing
- PPG
- Where
- Israel
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Shaare Zedek Medical Center
Healthy Adolescents
Activity Breaks for Brain Health in Adolescents
The main aim for this study is to investigate to what extent physical activity of moderate or low intensity, relative to prolonged inactivity, may acutely alter neural activity-related prefrontal cortex oxygenated hemoglobin…
- Trial name
- ABBaH teens (NCT04552626)
- Testing
- Prolonged sitting (social breaks), Prolonged sitting with step-up exercise break, Prolonged sitting with simple resistance activity breaks
- Where
- Sweden
- Volunteers
- 17 people, healthy volunteers welcome
- Sponsor
- The Swedish School of Sport and Health Sciences
Autism
MRI Study of Cerebral Blood Flow in Development Disorders in Children
The purpose of this study is reproduce the individual detection results by PET with Arterial Spin Labeling (ASL) MRI, to establish a biomarker useful in autism diagnosis.
- Trial name
- IRM-Aut (NCT02165410)
- Testing
- ASL-MRI, Diffusion tensor imaging (diffusion MRI), Resting state MRI
- Where
- France
- Volunteers
- 115 people, healthy volunteers welcome
- Sponsor
- Assistance Publique - Hôpitaux de Paris
Glaucoma, Open-Angle, Circadian Rhythm
Circadian Variations in Ocular Blood Flow in Glaucomatous and Normal Eyes
After focusing many years only on intraocular pressure (IOP) as the primary risk factor, recently the impact of ocular blood flow is getting more consideration for the pathophysiology of glaucoma.
- Conditions
- Glaucoma, Open-Angle, Circadian Rhythm, Intraocular Pressure, Regional Blood Flow
- Trial name
- NCT00707226
- Where
- Austria
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Normal Human Subjects
Single Photon Emission Computed Tomography of the Normal Human Brain
The objective of the study is to acquire a database of Single Photon Emission Computed Tomographic (SPECT) studies of the brains of normal human subjects in resting and concentrating states.
- Trial name
- NCT01203891
- Where
- United States
- Volunteers
- 97 people, healthy volunteers welcome
- Sponsor
- Amen Clinics, Inc.
Cerebral Blood Flow, Cerebral Blood Flow Regulation
The Role of Estrogen and Testosterone in Determining Brain Blood Flow and Metabolic Regulation in Humans
Due to historical exclusion of females from research, there are gaps in the understanding of female physiology, how it differs from males, and how sex-specific hormones contribute.
- Conditions
- Cerebral Blood Flow, Cerebral Blood Flow Regulation, Sex Differences, Exercise
- Trial name
- NCT07212712
- Testing
- GnRH antagonist, Estradiol (E2), Testosterone
- Where
- Canada
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University of British Columbia
Muscle Strength, Athletic Performance
Nordic vs Blood Flow Restriction Nordic Exercise in Elite Female Pole Vaulters
The purpose of this randomized controlled trial is to compare the effects of Nordic Hamstring Exercise (NHE) and Blood Flow Restriction-assisted Nordic Hamstring Exercise (BFR-NHE) on hamstring muscle strength, muscle morphology…
- Conditions
- Muscle Strength, Athletic Performance, Hamstring Adaptation, Sports Injury Prevention
- Trial name
- NCT07705698
- Testing
- Nordic Hamstring Exercise, Blood Flow Restriction-Assisted Nordic Hamstring Exercise
- Where
- Turkey (Türkiye)
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Toros University