Clinical trials: Blood Flow Velocity
Disorder Related to Renal Transplantation
The Effects of Omega-3 Fatty Acids in Renal Transplantation
Omega-3 fatty acids are provided through dietary intake of fish and seafood. Several dietary supplements containing omega-3 fatty acids are also commercially available.
- Trial name
- ORENTRA (NCT01744067)
- Testing
- Omega-3 fatty acids
- Where
- 2 sites in Norway
- Volunteers
- 132 people
- Sponsor
- Oslo University Hospital
Glaucoma, Blood Flow Velocity
Effects of Non-Specific Endothelin-A Receptor Blockade on Ocular Blood Flow in Patients With Glaucoma
Several lines of evidence suggest now that ocular perfusion abnormalities may contribute to the progression of glaucoma. It has been hypothesised that increased endothelin-1 plasma levels, as seen in patients with glaucoma, may…
- Trial name
- NCT00701597
- Testing
- bosentan
- Where
- Austria
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Shock
Reliability of Respiratory Variability of Maximal Aortic Blood Flow Velocity Obtained by Ultrasonography-doppler in Patients Followed Up with a Diagnosis of Shock in Intensive Care Unit for Evaluating Fluid Responsiveness in Patients
Original value: Shock is an important cause of mortality in intensive care units (ICU). Determining whether shock patients will benefit from (intravenous) IV fluid therapy is possible by fluid responsiveness parameters/tests.
- Trial name
- NCT06845280
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people
- Sponsor
- Ankara University
Age Problem
Relationship Between Respiratory Muscle Strenght, Peripheral Muscle Blood Flow and Gait Speed in the Elderly
The pourpose of this study is to verify if have relationship between respiratory muscle strenght, peripheral muscle blood flow and gait speed in the elderly.
- Trial name
- NCT04559659
- Testing
- Respiratory muscle strength
- Where
- Brazil
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Hospital Israelita Albert Einstein
Hypertension, Endothelial Dysfunction
Effect of Berberine Hydrochloride on Blood Pressure and Vascular Endothelial Function in Patients With Hypertension
Hypertension is a progressive cardiovascular syndrome caused by multiple causes, which can lead to changes in the function and structure of the heart and blood vessels. It is the leading risk factor of cardiovascular disease.
- Conditions
- Hypertension, Endothelial Dysfunction, Blood Pressure
- Trial name
- NCT04790942
- Testing
- berberine hydrochloride, lifestyle intervention group
- Where
- China
- Volunteers
- 30 people
- Sponsor
- Jun Tao
Stroke, Acute
Exercise and RIC and TCD
The first week after a stroke is a particularly important time, as improving blood flow may limit secondary ischaemic damage to the brain and help reduce the overall burden neurological injury and future disability.
- Trial name
- NCT03968068
- Testing
- Exercise Procedure, Remote Ischaemic Conditioning
- Where
- United Kingdom
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Sheffield Teaching Hospitals NHS Foundation Trust
Glucose, Insulin
Does Passive Movement Increase Glucose Uptake Into Muscle?
This study aims to examine the blood sugar response after a meal, and how three different movement protocols may impact the blood sugar level. Participants will visit the lab on three different occasions.
- Conditions
- Glucose, Insulin, Blood Flow Restriction Therapy, Blood Flow Velocity
- Trial name
- NCT06704126
- Testing
- Passive movement, Passive movement with blood flow restriction
- Where
- United Kingdom
- Volunteers
- 11 people, healthy volunteers welcome
- Sponsor
- Lancaster University
Orthostatic Hypotension
Research, Development, and Application of Intelligent Diagnostic System for Orthostatic Hypotension
Orthostatic hypotension (OH) has a high incidence rate of 30%-50% in the elderly and populations with neurodegenerative diseases.
- Trial name
- NCT07309666
- Testing
- Intelligent diagnostic system for orthostatic hypotension
- Where
- China
- Volunteers
- 2,000 people
- Sponsor
- Xuanwu Hospital, Beijing
Sepsis, Delirium
Cerebrovascular Autoregulation During Sepsis
The aim of the study is to correlate the dynamic cerebrovascular autoregulation by patients with sepsis with a sepsis-associated delirium.
- Trial name
- NCT01029080
- Testing
- no interventions
- Where
- Germany
- Volunteers
- 30 people
- Sponsor
- Johannes Gutenberg University Mainz
Extracorporeal Membrane Oxygenation Complication
Extracorporeal Membrane Oxygenation Evaluated by Transcranial Doppler.
To determine how venoarterial extracorporeal membrane oxygenation (ECMO) affects cerebral blood flow velocity (CBFV) measured by transcranial doppler (TCD), to determine whether specific changes in cerebral blood flow velocity…
- Trial name
- ECMO-DTC (NCT03457090)
- Testing
- Examination : a TCD and Trans-Thoracic Echocardiography
- Where
- France
- Volunteers
- 30 people
- Sponsor
- University Hospital, Toulouse
Blood Flow Velocity, Autoregulation
The Effect of an α2-Adrenoceptor Antagonist (Yohimbine) on Dynamic Autoregulation in the Human Middle Cerebral Artery and Ophthalmic Artery
Blood flow autoregulation is defined as the ability of a tissue to maintain a relatively constant flow, despite moderate alterations in perfusion pressure.
- Conditions
- Blood Flow Velocity, Autoregulation, Ocular Physiology
- Trial name
- NCT00814047
- Testing
- Yohimbine hydrochloride
- Where
- Austria
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Venous Stasis, Deep Vein Thrombosis
Blood Flow Stimulation in the Lower Limbs by Application of Different External Devices
In this study, four different devices which stimulate the blood in the lower extremities are used in ten healthy persons while measuring the blood flow with ultrasound.
- Trial name
- NCT03420625
- Testing
- Foot IPC, Rapid calf IPC, Slow calf IPC
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Karolinska University Hospital
Cerebral Oxygen Saturation,MCA Velocity,Intraoperative Neurological Symptoms During Carotid Endarterectomy
Middle Cerebral Artery Velocity and Oxygen Saturation of the Brain During Carotid Endarterectomy
The primary endpoint of our study is to determine whether neurological symptoms (aphasia, paresis, loss of consciousness, numbness) occur after clamping the internal carotid artery, and if so, changes showed by transcranial…
- Trial name
- NCT02665104
- Testing
- transcranial Doppler (TCD) and INVOS monitor
- Where
- 2 sites in Hungary
- Volunteers
- 100 people
- Sponsor
- University of Debrecen
Cerebral Blood Flow
Cerebral Blood Flow Velocity Changes During Laparoscopic Surgery
Little is known about how implementation of pneumoperitoneum contributes to cerebral blood flow in pediatrics. We investigated this question in patients undergoing laparoscopic surgery, hypothesizing that cardiorespiratory…
- Trial name
- NCT04291326
- Testing
- Transfontanelle ultrasound
- Where
- South Korea
- Volunteers
- 30 people
- Sponsor
- Seoul National University Hospital
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
Cerebral Lesion
Internal Carotid Artery Blood Flow in Infants With Prone Position
Little is known about how implementation of prone position contributes to general anesthesia-induced decrease in cerebral blood flow in infants.
- Trial name
- NCT05391282
- Testing
- ultrasound assessment
- Where
- South Korea
- Volunteers
- 20 people
- Sponsor
- Seoul National University Hospital
Hypotension on Induction
Carotid Artery Corrected Flow Time and Respiratory Variation of Blood Flow Peak Velocity for Prediction of Hypotension After Induction of General Anaesthesia in Adult Patients With Chronic Liver Disease
Baseline Measurements For the ultrasound parameters, it is the average of three readings In supine position . The investigators will continuously monitoring during induction and 10 minutes after.
- Trial name
- NCT07370103
- Where
- Egypt
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- Ain Shams University
Acute Circulatory Failure
Assessment of Agreement Between Two Measurement Methods of Left Ventricular Outflow Tract (LVOT) Velocity Time Integral (VTI)
Acute circulatory failure (ACF) is a common cause of admission in intensive care unit (ICU). Echocardiography is a widespread tool nowadays for the initial assessment and the hemodynamic monitoring.
- Trial name
- AUTO-VTI (NCT04360304)
- Testing
- Echocardiographic exam
- Where
- France
- Volunteers
- 70 people
- Sponsor
- Centre Hospitalier Universitaire de Nīmes
Magnetic Resonance Imaging, Tetralogy of Fallot
4D Velocity Mapping of the Heart in rTOF Patients
MRI with 4D flow permits to assess the hemodynamic parameters in a parent vessel and its branches inside the same sequence.
- Trial name
- CARDIOFLUX (NCT02980614)
- Testing
- 4D flow imaging
- Where
- France
- Volunteers
- 21 people
- Sponsor
- Centre Hospitalier Universitaire, Amiens
Blood Flow Speed, Coronary Flow Velocity
Study to Assess the Effect of Ticagrelor on Coronary Blood Flow in Healthy Male Subjects.
The purpose of this study is to determine if Ticagrelor increases the Adenosin induced coronary blood flow velocity.
- Trial name
- NCT01226602
- Testing
- AZD6140
- Where
- Sweden
- Volunteers
- 39 people, healthy volunteers welcome
- Sponsor
- AstraZeneca