Clinical trials: Carotid Doppler
Cerebral Blood Flow
A Study on Hemodynamic Relationship Including Cerebral Blood Flow Using Phase Contrast and Signal Intensity Gradient of Brain Magnetic Resonance Imaging, and Carotid Doppler Ultrasound
Cerebral blood flow measurement, which is applied to patients with cerebrovascular-related diseases, provides useful information about hemodynamic status.
- Trial name
- NCT04585971
- Testing
- Signal intensity gradient
- Where
- South Korea
- Volunteers
- 30 people
- Sponsor
- Chonbuk National University Hospital
Stroke, Transient Ischemic Attack (TIA)
PROspective Study to OPTimize thE HEALTH of Patients With TIAs (Transient Ischemic Attacks) and Stroke Admitted to the Hamad General Hospital
This will be a prospective randomized 2 year study of patients admitted to the Hamad General Hospital (HGH) and the Stroke Prevention Clinic with a diagnosis of ischemic stroke (IS) and Transit ischemic attacks (TIAs).
- Trial name
- PROMOTE-HEALTH (NCT02868723)
- Testing
- Aggressive Management
- Where
- Qatar
- Volunteers
- 400 people
- Sponsor
- Hamad Medical Corporation
Spinal Anesthesia-induced Hypotension
Predicting if the Blood Pressure Will Drop After Spinal Anesthesia Using Ultrasound of the Neck
After a spinal injection, blood pressure might drop for a short time, similar to what happens with general anesthesia. This drop can be different for each person.
- Trial name
- NCT06711289
- Testing
- Carotid ultrasound measurement, Vital sign measurement, Spinal anesthesia
- Where
- Netherlands
- Volunteers
- 44 people
- Sponsor
- Catharina Ziekenhuis Eindhoven
Fluid Responsiveness Predictability in Sepsis
A Study Comparing Carotid Doppler Ultrasound and Echocardiography to Assess Fluid Responsiveness in Septic Patients on Ventilator
The goal of this clinical trial is to determine whether common carotid artery blood flow measured by bedside Doppler ultrasound can accurately identify fluid responsiveness in mechanically ventilated adults with sepsis.
- Trial name
- NCT07653568
- Testing
- intravenous crystalloid fluid bolus
- Where
- Pakistan
- Volunteers
- 94 people
- Sponsor
- Pakistan Institute of Medical Sciences
Stroke
Effects of Aerobic Exercise on the Cerebral Arterial System, Cognitive, and Motor Function in Post-stroke Patients.
Background: Stroke is the second leading cause of death and disability worldwide and in Hong Kong, 6.2% of all registered deaths in 2020 were due to cerebrovascular disease.
- Trial name
- NCT05706168
- Testing
- treadmill exercise, Cycle ergometer exercise
- Where
- Hong Kong
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Cardiac Surgery
Consistency of Carotid Doppler Blood Flow and Thermodilution Technique
Currently, the gold standard method to estimate CO is the thermodilution technique, pulmonary artery catheter (PAC) and PiCCO system included, however, the invasiveness and complexity of the thermodilution technique have limited…
- Trial name
- NCT05944146
- Testing
- passive leg raising, Dobutamine
- Where
- China
- Volunteers
- 200 people
- Sponsor
- Shanghai Zhongshan Hospital
Artery Stenosis
Transcranial Doppler for Internal Carotid Artery Stenting (TCD-ICAS)
Carotid artery stenting (CAS) prevents stroke but carries risks of perioperative cerebral embolism. Transcranial Doppler (TCD) ultrasound can detect microemboli during CAS and may offer therapeutic benefits through…
- Trial name
- NCT07462546
- Testing
- Transcranial Doppler
- Where
- China
- Volunteers
- 232 people
- Sponsor
- General Hospital of Shenyang Military Region
Stroke, Acute
Linearity and Non-linearity of Cerebral Autoregulation
Injured brain tissue supplied by a disturbed state of cerebral autoregulation (CA) is at risk of secondary ischemia, e.g. in patients with stroke, subarachnoid hemorrhage, intracerebral hemorrhage or bacterial Meningitis.
- Trial name
- NCT04611672
- Testing
- Assessment of CA, Assesment of CA only
- Where
- Switzerland
- Volunteers
- 580 people
- Sponsor
- Luzerner Kantonsspital
Primary Prevention
Genetical, Anthropometrical and Biochemical Factors Influencing High Risk Subclinical Atherosclerosis
Subclinical atherosclerosis is the atherosclerotic process identified before clinical symptoms and thus it can be a useful marker of future cardiovascular events. It can be evaluated by many methods.
- Trial name
- NCT02487615
- Where
- 2 sites in Brazil
- Volunteers
- 340 people, healthy volunteers welcome
- Sponsor
- Instituto Dante Pazzanese de Cardiologia
Internal Carotid Artery Stenosis
SONOlysis in Prevention of Brain InfaRctions During Internal Carotid Endarterectomy
SONOBIRDIE Trial is a randomized, single-blind, sham-controlled study designed for a demonstration of the safety and effectiveness of sonolysis (continual transcranial Doppler (TCD) monitoring) in reduction of risk of stroke or…
- Trial name
- SONOBIRDIE (NCT02398734)
- Testing
- sonolysis
- Where
- Czechia
- Volunteers
- 1,492 people
- Sponsor
- University Hospital Ostrava
Flow Time, Carotid Doppler Ultrasound
Carotis cFT In Prediction Of Hypotension
The aim of our study is to determine the predictive value of pre-anesthesia FTc for hypotension that may develop after general anesthesia induction in patients over 65 years of age and to investigate the correlation between…
- Conditions
- Flow Time, Carotid Doppler Ultrasound, Hypotension, Anesthesia
- Trial name
- NCT05896514
- Testing
- ultrasound-guided carotid artery flow time measurement
- Where
- Turkey (Türkiye)
- Volunteers
- 138 people, healthy volunteers welcome
- Sponsor
- Cukurova University
Hypotension After Spinal Anesthesia
Carotid Ultrasound for Post-Spinal Anesthesia Hypotension in Elderly Hip Surgery
This study aims to evaluate the predictability of preoperative carotid artery-corrected flow time (CFTc) for hypotension after spinal anesthesia in patients undergoing geriatric hip replacement surgery.
- Trial name
- NCT07876063
- Testing
- Ultrasound
- Where
- Egypt
- Volunteers
- 50 people
- Sponsor
- Tanta University
Ultrasound, Machine Learning
Intelligent Classification of Intraoperative Hemodynamic Phenotypes Based on CADFlow Doppler Monitoring
The goal of this observational study is to learn about intraoperative hemodynamic phenotypes in adult patients undergoing elective surgery under general anesthesia, using a new wearable ultrasound patch (CADFlow) that…
- Conditions
- Ultrasound, Machine Learning, Intraoperative Hypotension, Hemodynamic Monitoring
- Trial name
- NCT06957587
- Where
- 2 sites in China
- Volunteers
- 440 people
- Sponsor
- Shanghai 6th People's Hospital
Cardiac Surgical Procedures
Diagnostic Accuracy of Doppler Resistive Indices for Early Diagnosis of Acute Kidney Injury .
To determine if ultrasound measurement of renal and carotid arterial resistive indices are associated with post-cardiac surgery acute kidney injury.
- Trial name
- NCT02580292
- Where
- United States
- Volunteers
- 100 people
- Sponsor
- University of Michigan
Hypotension (MeSH: D007022)
Carotid Artery Blood Flow, Blood Pressure, and Cardiac Output During Anesthesia in Children Aged 0-5 Years
Blood pressure is routinely monitored during anesthesia in children, but blood pressure alone may not accurately reflect blood flow to vital organs.
- Trial name
- CARFLOW (NCT07847203)
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Karolinska Institutet
Cerebrovascular Stroke
Carotid Doppler Findings of High Risk Group of Stroke
To evaluate the effect of different risk factors on carotid arteries via ultrasonography parameters.
- Trial name
- NCT05920291
- Volunteers
- 85 people
- Sponsor
- Assiut University
Stroke
Characteristics in Doppler Ultrasound of the Carotid Diaphragm Responsible for an Ischemic Stroke
Carotid diaphragms are a non-atheromatous arterial cause of cerebral infarction, especially in young people (≤65 years old). This anomaly is more common in the African or African-American population, although it is more and more…
- Trial name
- DIADOP (NCT04442074)
- Where
- France
- Volunteers
- 15 people
- Sponsor
- Fondation Hôpital Saint-Joseph
Epicardial Fat, Visceral Fat
Epicardial Fat, Visceral Fat and Coronary Atherosclerosis
Background: Visceral fat is increasingly associated with metabolic syndrome and with fatty liver, a condition carrying a high risk of cardiovascular disease.
- Conditions
- Epicardial Fat, Visceral Fat, Atherosclerosis
- Trial name
- NCT01344694
- Testing
- patient with liver fat, pts. with excess of visceral fat, control
- Where
- Israel
- Volunteers
- 110 people, healthy volunteers welcome
- Sponsor
- Ziv Hospital
Congenital Heart Disease, Cardiac Output
UltraTrac for Cardiac Output Monitoring in Congenital Heart Disease
This pilot feasibility study will evaluate UltraTrac, an investigational noninvasive wearable device for continuous cardiac output monitoring, in patients with congenital heart disease.
- Conditions
- Congenital Heart Disease, Cardiac Output, Hemodynamic Monitoring, Pediatric Heart Disease
- Trial name
- UltraTrac (NCT07866573)
- Testing
- UltraTrac
- Where
- United States
- Volunteers
- 70 people
- Sponsor
- University of Minnesota
Post-induction Hypotension (PIH), Gastrointestinal Tumor Surgery
Carotid Doppler Changes After Passive Leg Raising for Prediction of Post-Induction Hypotension in Gastrointestinal Tumor Surgery
This prospective study aims to investigate the role of the passive leg raise maneuver prior to anesthesia induction in predicting post-induction hypotension among elective gastrointestinal tumor surgery patients using carotid…
- Trial name
- NCT07777159
- Where
- Turkey (Türkiye)
- Volunteers
- 99 people
- Sponsor
- Ankara City Hospital Bilkent