Clinical trials: Transcranial Doppler Ultrasound
Cardiac Arrest, Cerebral Lesion
Early Transcranial Doppler Goal Directed Therapy After Cardiac Arrest: a Pilot Study
Hypoxic-ischaemic brain injury (HIBI) is the main cause of death in patients who are comatose after resuscitation from cardiac arrest.
- Conditions
- Cardiac Arrest, Cerebral Lesion, Ischemic Encephalopathy, Ischemic Reperfusion Injury
- Trial name
- GOODYEAR (NCT04000334)
- Testing
- MAP increased to optimize cerebral blood flow, MAP between 65 and 85 mmHg
- Where
- France
- Volunteers
- 20 people
- Sponsor
- Centre Hospitalier le Mans
Hepatic Encephalopathy
Cerebrovascular Reactivity in Hepatic Encephalopathy
It has been observed that patients with cirrhosis present a generalized state of vasoconstriction as an homeostatic response to splanchnic arteriolar vasodilatation.
- Trial name
- NCT01099293
- Where
- Mexico
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran
Sickle Cell Disease
A Phase 2 Open-label Study to Evaluate the Activity of Etavopivat on Transcranial Doppler Velocities in Pediatric Patients With Sickle Cell Disease Who Are at Increased Risk for Primary Stroke
The study will test a new medicine, etavopivat, for sickle cell disease and see if it is safe and help-ful for participants with sickle cell disease who are at an increased risk of stroke.
- Trial name
- HIBISCUS 3 (NCT05953584)
- Testing
- Etavopivat, Hydroxyurea
- Where
- 9 sites in India, Nigeria and 1 more
- Volunteers
- 27 people
- Sponsor
- Forma Therapeutics, Inc.
Respiration, Artificial, Sedated
Influence of Chronic Vascular Diseases on Transcranial Doppler Profiles in Critically Ill Patients
The primary objective of this study is to show that cardiovascular risk factors associated with the chronic elevation of arterial resistance may be associated with "false" profiles of intracranial hypertension during transcranial…
- Trial name
- CritiDop (NCT02898389)
- Where
- France
- Volunteers
- 91 people
- Sponsor
- Centre Hospitalier Universitaire de Nīmes
Medical Device Complication, Brain Injuries
Transcranial Doppler Using Wearable Ultrasound Patch
The main objective of this research is to measure the Doppler signal by the ultrasonic patch. Blood flow measurement is critical for vasospasm, stroke, and embolism monitoring on patients in the ICU or understanding the…
- Conditions
- Medical Device Complication, Brain Injuries, Brain Diseases, Stroke
- Trial name
- TCD (NCT06073145)
- Testing
- conventional transcranial Doppler probe and wearable ultrasound patch.
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- University of California, San Diego
Cerebral Infarction
Effect of Cilostazol in the Acute Lacunar Infarction Based on Pulsatility Index of Transcranial Doppler
RATIONALE: Elevation in pulsatility indices (PIs), measured by transcranial Doppler (TCD), has been postulated to reflect downstream increased vascular resistance caused by small-vessel disease (SVD).
- Trial name
- ECLIPse (NCT00741286)
- Testing
- Aspirin, cilostazol
- Where
- 8 sites in South Korea
- Volunteers
- 203 people
- Sponsor
- Inje University
Head Injury, Intracerebral Hemorrhage
The Prediction of Intracranial Pressure and Clinical Outcome by Transcranial Doppler in Neurocritical Patients
The purpose of this study is to use transcranial Doppler (TCD) to predict intracranial pressure (ICP) and clinical outcome of neurocritical patients.
- Conditions
- Head Injury, Intracerebral Hemorrhage, Ischemic Stroke, Subarachnoid Hemorrhage
- Trial name
- NCT00886054
- Where
- Taiwan
- Volunteers
- 30 people
- Sponsor
- National Taiwan University Hospital
Trans Cranial Doppler Ultrasonography in Heamodynamic Optimisation in Septic Shock
Hemodynamic Optimisation Guided With Transcranial Doppler in Septic Shock
Randomized, controlled, prospective trial, including ICU patients with Sepsis or septic Shock, at the early phase. patients will be randomized in 2 groups regarding the hemodynamic management and catecholamin doses: Group 1…
- Trial name
- NCT04398069
- Testing
- hemodynamic optimisation aiming to achieve normal cerebral perfusion
- Where
- Tunisia
- Volunteers
- 24 people
- Sponsor
- Mongi Slim Hospital
Trancranial Doppler
Transcranial Ultrasound and Transcranial Doppler in Diagnosis and Detection of Outcome in Infants With Neurological Diseases
To evaluate the accuracy of transcranial ultrasound in detection of brain pathology in infants with neurological diseases and value of transcranial Doppler in evaluation of intracerebral blood flow in comparison with other…
- Trial name
- NCT06352931
- Testing
- transcranial and transcranial dopp;er
- Volunteers
- 50 people
- Sponsor
- Assiut University
Hemoglobinopathies
Transcranial Doppler in Children With Hemoglobinopathies
Transcranial Doppler ultrasonography (TCD) is a noninvasive, portable technique for evaluating the intracranial vasculature. TCD ultrasonography is performed placing a low frequency (≤ 2 MHz) transducer on the scalp of the…
- Trial name
- NCT04798157
- Testing
- transcranial doppler
- Volunteers
- 50 people
- Sponsor
- Sohag University
Cerebral Vascular Accident (CVA)/Stroke
Transcranial Doppler (TCD) Ultrasound and Cognition in Cerebral Vascular Disease. (SUNRISE)
This study aims to contribute to the identification of factors that may be predictive of cognitive function and to provide data on cerebral hemodynamic in ischemic and haemorrhagic stroke.
- Trial name
- SUNRISE (NCT06735274)
- Testing
- Cerebral Autoregulation (CAR), Neurovascular coupling (NVC), Microembolic signals (MES)
- Where
- Portugal
- Volunteers
- 517 people
- Sponsor
- Universidade do Porto
Cerebral Vasospasm
Stellate Ganglion Block Using Ultrasound Guidance For Treatment Of Post Clipping Cerebral Vasospasm
The present study has been designed to assess the efficacy and safety of Stellate Ganglion Block (SGB) in relieving symptomatic cerebral vasospasm following aneurysmal clipping.
- Trial name
- NCT02775318
- Testing
- Stellate Ganglion Block, Bupivacaine, Transcranial Doppler
- Volunteers
- 20 people
- Sponsor
- Post Graduate Institute of Medical Education and Research, Chandigarh
Subarachnoid Hemorrhage, Aneurysmal, Brain Injuries, Traumatic
Prospective Observational Multimodal Neuromonitoring in Adult NSICU Patients
This is a prospective observational cohort study of adult patients admitted to the Neurosciences Intensive Care Unit (NSICU) at UT Southwestern Medical Center.
- Conditions
- Subarachnoid Hemorrhage, Aneurysmal, Brain Injuries, Traumatic, Cerebral Hemorrhage, Ischemic Stroke
- Trial name
- NCT07577713
- Where
- United States
- Volunteers
- 300 people
- Sponsor
- University of Texas Southwestern Medical Center
Cardiovascular System
Effects of Caffeine on Cerebral Blood Flow
The goal of this clinical trial is to evaluate in clinically healthy young people if: after caffeine ingestion, there are variations in blood velocity of the middle cerebral arteries (VMCA), this variation is dependent on the…
- Trial name
- NCT05866848
- Testing
- Anhydrous caffeine (45mg), Anhydrous caffeine (120mg)
- Where
- Portugal
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Escola Superior de Tecnologia da Saúde de Coimbra
Anterior Cerebral Artery Syndrome, Anterior Cerebral Artery Stroke
Transcranial Doppler Evaluation After Endovascular Thrombectomy for Acute Ischemic Stroke (PRECISE-TCD)
Endovascular thrombectomy (EVT) improves outcomes in acute ischemic stroke caused by large vessel occlusion. Despite successful recanalization, early neurological deterioration (END) remains frequent and is associated with poor…
- Conditions
- Anterior Cerebral Artery Syndrome, Anterior Cerebral Artery Stroke, Acute Ischemic Stroke, Cardioembolic Stroke
- Trial name
- NCT07013396
- Testing
- Transcranial Doppler (TCD) examination
- Where
- United States
- Volunteers
- 100 people
- Sponsor
- Virginia Commonwealth University
Aortic Valve Stenosis, Extracorporeal Circulation
Cerebral Embolic Load in Patients Undergoing Surgical Aortic Valve Replacement: A Comparison of the Conventional With the Minimized Extracorporeal Circulation Technique Using Transcranial Doppler Ultrasound
In this study, the investigators aim to compare cerebral embolic load in patients undergoing surgical aortic valve replacement using either the minimized extracorporeal circulation or the conventional extracorporeal circulation…
- Trial name
- AKE-MECC (NCT02308566)
- Testing
- Minimized Extracorporeal Circulation (MECC), Conventional Extracorporeal Circulation (CECC)
- Where
- Switzerland
- Volunteers
- 48 people
- Sponsor
- Insel Gruppe AG, University Hospital Bern
Intraoperative Neurophysiological Monitoring
Multi Modal Brain Monitoring and Cardiac Surgery
Multimodal brain monitoring is feasible and can be used in formulating therapeutic strategies during cardiac surgery. Such monitoring may help to improve patient outcome and to reduce costs after cardiac surgery with CPB.
- Trial name
- NCT02916069
- Testing
- Nearinfrared Spectroscopy (NIRS), Transcranial Doppler (TCD), Bispectral index (BIS)
- Where
- Egypt
- Volunteers
- 1,200 people
- Sponsor
- Assiut University
Subarachnoid Hemorrhage, Aneurysmal, Cerebral Vasospasm
Stellate Ganglion Block in Preventing Cerebral Vasospasm Secondary to Subarachnoid Hemorrhage
To investigate whether the stellate ganglion block is helpful in relieving cerebral vasospasm during aneurysmal coil embolism surgery. The effect was assessed by Transcranial Doppler (TCD).
- Trial name
- NCT04512859
- Testing
- Stellate Ganglion Block
- Volunteers
- 160 people
- Sponsor
- Beijing Tiantan Hospital
Traumatic Brain Injury
Diagnosis of Intracranial Hypertension Using TCCD, ONSD and ODH by Bedside Ultrasound
The goal of this observational study is to investigate several means of measuring intracranial pressure (ICP) non-invasively in patients who had head trauma and received implantation of invasive ICP monitor device.
- Trial name
- NCT07151287
- Testing
- TCCD, ONSD, ODH
- Volunteers
- 64 people
- Sponsor
- Xiangya Hospital of Central South University
Carotid Stenosis, Carotid Artery Diseases
Embolic Signals Detection Study (Esds) in Candidates for Surgical Carotid Revascularisation
About 20% of strokes are caused by emboli deriving from a carotid plaque. In symptomatic patients with carotid stenosis grater than 70% the Carotid Endarterectomy (CEA) reduces stroke risk by about 75% and is generally accepted…
- Conditions
- Carotid Stenosis, Carotid Artery Diseases, Carotid Atherosclerosis, Carotid Artery Plaque
- Trial name
- NCT05134493
- Where
- Italy
- Volunteers
- 120 people
- Sponsor
- Azienda Ospedaliero-Universitaria di Modena