Clinical trials: Carotid Doppler
Carotid Stenosis
Cardiac Output and Duplex Sonography in Carotid Endarterectomy
The aim of this study is to investigate the differences between the cardiac output and the cerebral blood-flow between a regional anesthesia (RA) and a general anesthesia (GA) in a randomized, controlled, single center study at…
- Trial name
- NCT02230358
- Testing
- Regional anesthesia, General anesthesia, Transcranial Doppler ultrasonography
- Where
- Austria
- Volunteers
- 90 people
- Sponsor
- Medical University Innsbruck
Septic Shock, Echocardiography Guided Fluid Management
Prediction of Fluid Responsiveness in Paediatric Patients With Septic Shock Using Carotid Doppler Ultrasonography and Echocardiography
The goal of this study is to evaluate the role of carotid Doppler and Echocardiography as a predictor of fluid responsiveness in paediatric patients with septic shock.
- Trial name
- NCT07136532
- Testing
- echocardiography
- Where
- Egypt
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Ain Shams University
Cardiac Arrest
Carotid Ultrasound Under Pulsed-wave Doppler Mode to Check the Pulse in Cardiopulmonary Arrest Patients.
It's crucial to determine whether a pulse is present or not in patient with cardiac arrest. But more and more studies have shown that manual palpation is unreliable for detecting pulse 1-4.
- Trial name
- NCT04790396
- Testing
- Carotid ultrasound under pulsed-wave doppler mode
- Where
- Taiwan
- Volunteers
- 50 people
- Sponsor
- National Taiwan University Hospital
Acute Kidney Injury
Carotid Doppler and IVC Measurements for Volume Guided Management in Acute Kidney Injury Patients
1. Evaluate Inferior Vena Cava Indices (Diameters , IVC-CI)\&carotid doppler measurements (corrected Carotid Flow Time ,Carotid Blood Flow ,Carotid Artery Peak Velocity Variations) as Non-Invasive Technique for volume guided…
- Trial name
- NCT05938049
- Testing
- IVC ultrasound & Carotid doppler
- Volunteers
- 60 people
- Sponsor
- Assiut University
Cystic Fibrosis, Endothelial Dysfunction
Vascular Health and Function in Cystic Fibrosis
The goal of this observational study is to learn whether blood vessel health and function differ between adults aged 40 years or older with cystic fibrosis (CF) who are taking CFTR modulator therapy and healthy adults of the same…
- Conditions
- Cystic Fibrosis, Endothelial Dysfunction, Cardiovascular Risk Factor
- Trial name
- CF-VHF (NCT07904325)
- Testing
- Non-invasive vascular, cerebrovascular and autonomic assessment
- Where
- United Kingdom
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Liverpool Heart and Chest Hospital NHS Foundation Trust
Traumatic Brain Injuries, Brain Injuries,Traumatic
Doppler Ultrasonography Parameters and Mortality in Traumatic Brain Injury
The purpose of this study is to find out whether blood flow measurements of the brain and neck arteries, obtained with bedside Doppler ultrasonography are associated with neurological outcome and survival in adult patients with…
- Trial name
- NCT07890259
- Testing
- Transcranial and Carotid Doppler Ultrasonography
- Where
- Turkey (Türkiye)
- Volunteers
- 110 people
- Sponsor
- Inonu University
Carotid Stenosis, Carotid Artery Diseases
Ultrafast Ultrasound Imaging Assesment of Carotid Plaque Neovascularization
Stroke is the second leading cause of death in the Western world and the leading cause of major lifelong disability. About 15% of strokes are secondary to thrombosis or embolization of an unstable atheromatous carotid plaque.
- Conditions
- Carotid Stenosis, Carotid Artery Diseases, Carotid Atherosclerosis, Carotid Artery Plaque
- Trial name
- ULTRA-VASC (NCT04470687)
- Testing
- contrast enhanced ultrafast ultrasound imaging
- Where
- France
- Volunteers
- 40 people
- Sponsor
- Assistance Publique - Hôpitaux de Paris
Intracranial Pressure, Ultrasonography
Effect of Internal Jugular Vein Catheterization on Intracranial Pressure and Intracranial Blood Flow
This prospective observational study aims to evaluate the effect of internal jugular vein catheterization on intracranial pressure using optic nerve sheath diameter (ONSD) measurements and carotid artery Doppler ultrasonography…
- Trial name
- NCT07540481
- Testing
- Internal Jugular Vein Catheterization
- Where
- Turkey (Türkiye)
- Volunteers
- 61 people
- Sponsor
- Kanuni Sultan Suleyman Training and Research Hospital
Cardiac Arrest (CA), Return of Spontaneous Circulation
Pulse Detection in Cardiac Arrest Patients Using a Doppler Ultrasound Patch on the Carotid Artery
The purpose of this study is to find out if a Doppler ultrasound patch placed on the neck can accurately and quickly detect when a cardiac arrest patient's heart starts beating again (return of spontaneous circulation, or ROSC)…
- Conditions
- Cardiac Arrest (CA), Return of Spontaneous Circulation, CPR Quality Assessment
- Trial name
- NCT07729228
- Testing
- Ultrasound doppler perfusion monitoring
- Where
- United States
- Volunteers
- 20 people
- Sponsor
- Heartstream US LLC
Thyroid, Carotid Doppler
Effect of Head Position During Thyroidectomy on Postoperative Cognitive Functions
The aim of our study is to observe the effect of head-neck position of patients scheduled for thyroidectomy, on carotid artery blood flow, regional cerebral oxygen saturation measured using near-infrared spectroscopy technology…
- Conditions
- Thyroid, Carotid Doppler, Cerebral Perfusion
- Trial name
- NCT04830293
- Testing
- Carotis Doppler Ultrasound
- Where
- Turkey (Türkiye)
- Volunteers
- 1 people, healthy volunteers welcome
- Sponsor
- Zonguldak Bulent Ecevit University
Heart Failure, Cognitive Impairment
TRAnscranial Doppler CErebral Blood Flow and Cognitive IMPAIRment in Heart Failure
TRACE-IMPAIR is a prospective, clinical study of consecutive patients that evaluates the relationship between heart failure (HF) and cognitive impairment in relation to carotid and cerebral flow.
- Conditions
- Heart Failure, Cognitive Impairment, Carotid Stenosis
- Trial name
- TRACE-IMPAIR (NCT05250349)
- Testing
- Echocardiography, Doppler sonography, Neuropsychological tests
- Where
- Poland
- Volunteers
- 300 people
- Sponsor
- John Paul II Hospital, Krakow
Cardiac Arrest (CA), Cardiopulmonary Resuscitation
RescueDoppler- a Disruptive Ultrasound Solution for Improved Outcome After Cardiac Arrest.
RescueDoppler is an innovative, hands-free Doppler system designed for continuous monitoring of blood flow in the carotid artery, distinguishing between the presence and absence of a pulse.
- Conditions
- Cardiac Arrest (CA), Cardiopulmonary Resuscitation, Doppler Ultrasound
- Trial name
- RescueDoppler (NCT06599073)
- Testing
- RescueDoppler, Rescue
- Where
- 8 sites in Norway, Sweden
- Volunteers
- 285 people
- Sponsor
- Norwegian University of Science and Technology
Healthy Amateur Divers
Effects of Voluntary Neck Extension on Cerebral Blood Flow, in Breath-hold Divers Ending an Apnoea of Two Minutes or More.
The aim of this study is to demonstrate the effect of the voluntary neck extension in the occurrence of an increase in the pulsatility index of the right internal carotid artery in the amateur diver, realizing an apnea of two…
- Trial name
- APNECK (NCT03210857)
- Testing
- apnea performing
- Where
- France
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Nantes University Hospital
Hypotension on Induction
FloPatch for Prevention of Hypotension After Induction of General Anesthesia
This study is being conducted to find out if a special device called FloPatch™, which sticks to a persons skin and uses ultrasound to check the blood flow in their neck, can tell if someone going to have low blood pressure after…
- Trial name
- HI-CAP (NCT06316817)
- Testing
- FloPatch
- Where
- Canada
- Volunteers
- 172 people
- Sponsor
- Mount Sinai Hospital, Canada
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
Internal Carotid Artery Stenosis
SONOlysis in Prevention of Brain Infarctions dUring Carotid Stenting and caroTid EndaRterectomy
The aim of the project is to demonstrate a fibrinolytic effect of sonothrombolysis (continual transcranial Doppler monitoring) using 2 MegaHertz (MHz) diagnostic probe on the reduction of risk of brain infarctions due to the…
- Trial name
- SONOBUSTER (NCT01591005)
- Testing
- sonolysis, endarterectomy, carotid stenting
- Where
- Czechia
- Volunteers
- 242 people
- Sponsor
- University Hospital Ostrava
Thyroid Surgery, Head Extension on the Anatomic Axes of the Superior Airway
The Effect of Thyroid Lobe Volume on the Common Carotid Artery Blood Flow
The goal of this observational study is to evaluate how thyroid lobe volume affects carotid artery blood flow dynamics in adult patients undergoing elective thyroidectomy.
- Trial name
- NCT06797388
- Where
- Turkey (Türkiye)
- Volunteers
- 132 people
- Sponsor
- Recep Tayyip Erdogan University
Hypotension, Sepsis
Carotid Doppler Ultrasound for the Measurement of Intravascular Volume Status
Ultrasound represents an attractive non-invasive method to assess hemodynamic status. Understanding dynamic changes in hemodynamics in situations such as hypovolemia, sepsis, and cardiogenic shock can potentially help improve…
- Trial name
- NCT02907931
- Testing
- Point of Care Ultrasound
- Where
- United States
- Volunteers
- 29 people, healthy volunteers welcome
- Sponsor
- Yale University
Carotid Occlusion Intolerance
Prediction of Carotid Occlusion Intolerance by Transcranial Doppler Evaluation in Patients Undergoing Carotid Artery Stenting With Proximal Flow Arrest Protection System.
The aim of this observational pilot study is to determine whether intolerance of carotid occlusion during carotid artery stenting can be predicted with preprocedural transcranial Doppler evaluation.
- Trial name
- NCT01922609
- Where
- Czechia
- Volunteers
- 30 people
- Sponsor
- University Hospital, Motol
Prevention of Hypotension
Point Of Care Ultrasound For Prediction Of Fluid Responsiveness in Off Pump Coronary Artery Bypass Grafting Surgery
To exclude hypovolemia before starting off pump coronary artery grafting surgeries by an efficient and good predictive test. We will assess the sensitivity and specificity of dynamic IVC-derived parameters (dispensability index)…
- Trial name
- NCT05968040
- Testing
- Inferior vena cava diameter measurement by ultrasonography, difference between peak velocities of carotid artery by ultrasound, cardiac output be transthoracic echocardiography
- Volunteers
- 40 people
- Sponsor
- Ain Shams University