Clinical trials: Doppler Ultrasound
Down Syndrome (Trisomy 21)
Vascular Function in Adults With Down Syndrome
Adults with Down syndrome (Ds) are often thought to have a lower risk of heart and blood vessel disease because they tend to have lower blood pressure (BP) and fewer heart attacks than people without Ds.
- Trial name
- VDS (NCT07630207)
- Where
- United States
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- University of Nevada, Las Vegas
Venous Thrombosis
Neuromuscular Electrical Stimulation Versus Intermittent Pneumatic Compression for Blood Flow
Deep Vein Thrombosis (DVT) is a life threatening condition and a serious concern among hospitalized patients, with death occurring in approximately 6% of cases.
- Trial name
- NCT01862471
- Testing
- Neuromuscular Electrical Stimulation, Intermittent Pneumatic Compression
- Where
- Ireland
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- National University of Ireland, Galway, Ireland
Smoking Cessation, Cardiovascular Diseases
E-cigarettes and Cardiovascular Function
The large current uptake of e-cigarettes (2.8 million U.K. users in 2016; 26), the continuous involvement of e-cigarettes (which potentially affects their contents as well), the uncertainty about their medium- and longer-term…
- Conditions
- Smoking Cessation, Cardiovascular Diseases, Microcirculation, Macrocirculation
- Trial name
- ISME-NRT (NCT03061253)
- Testing
- Electronic Cigarette and behavioural change support., Nicotine-Free Electronic Cigarette and behavioural change support., Nicotine Replacement Therapy and behavioural change support.
- Where
- United Kingdom
- Volunteers
- 248 people, healthy volunteers welcome
- Sponsor
- Sheffield Hallam University
Hypertension, Renal Failure
The Efficacy of Color-Doppler Ultrasonography to Assess the Renal Blood Flow With the Estimation of GFR
It is generally assumed that renal blood flow is symmetric in the absence of renal artery stenosis. The importance of studying the function of both kidneys separately is because it cannot be assumed that they are functionally…
- Trial name
- NCT00470769
- Testing
- Color-Doppler Ultrasound, 99mTc-DTPA scintigraphy
- Where
- 3 sites in Italy
- Volunteers
- 2,006 people, healthy volunteers welcome
- Sponsor
- University of Roma La Sapienza
Neonatal Resuscitation
Doppler Ultrasound Compared With Stethoscope to Assess Heart Rate (HR)
This is a prospective randomized controlled trial comparing heart rate measurement by Doppler ultrasound or auscultation with a stethoscope in newborn infants who require stabilization or resuscitation immediately after birth.
- Trial name
- NCT04242654
- Testing
- Handheld fetal doppler ultrasound
- Where
- United States
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Columbia University
Antepartum Hemorrhage
Doppler Imaging and Morbidly Adherent Placenta
The aim of this study is to assess the value of adding 3D power Doppler (as a diagnostic technique) to gray scale technique in the antenatal diagnosis of morbidly adherent placenta as well as predict the surgical outcome…
- Trial name
- NCT03267446
- Testing
- 3D Doppler Ultrasound
- Where
- Egypt
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Cairo University
Pregnancy Related
The Acute Effect of Physical Exercise in Pregnancy
The goal of this crossover clinical trial is to investigate the acute physiological effect of exercise on the uterine and fetal blood flow in pregnancy.
- Trial name
- NCT06565182
- Testing
- Exercise
- Where
- Belgium
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- University Hospital, Antwerp
Chocolate Consumption
Renal Ultrasound Response After Chocolate Consumption
The consumption of dark chocolate (DC) has antihypertensive (3) and anti-inflammatory effects. Some studies also suggest that dark chocolate may also have cardiovascular benefits, but its physiological effects on the kidneys have…
- Trial name
- Choco (NCT05755217)
- Testing
- Dark chocolate, White chocolate
- Where
- 2 sites in Switzerland
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- Gregoire Wuerzner; MD
Psoriatic Arthritis, Enthesitis
Ultrasound and Shear Wave Elastography Assessment of Entheses in Psoriatic Arthritis
Psoriatic arthritis (PsA) is a chronic inflammatory disease that frequently involves the entheses, where tendons, ligaments, and fascia insert into bone.
- Trial name
- SWE-PsA (NCT07785089)
- Testing
- Grayscale Ultrasonography, Power Doppler Ultrasonography, and Shear Wave Elastography
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Marmara University
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
Premature Birth
Cerebral Blood Flow Parameters and Neurobehavioral Development in Infants at Term Age
Although several studies have contrasted the hemodynamics of cerebral arteries using cranial Doppler ultrasound between full-term and preterm infants, the assessments were mostly conducted in the first days of life.
- Trial name
- NCT00676247
- Where
- Taiwan
- Volunteers
- 1 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
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
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
Mammaplasty
Accuracy of Deep Inferior Epigastric Artery Perforator Mapping - Color Doppler Ultrasound Versus CT Angiography
The goal of this clinical trial is to compare the accuracy and contribution of Color Doppler Ultrasound (CDU) guided Deep Inferior Epigastric Artery (DIEA) perforator mapping with or without mapping using Computer Tomography…
- Trial name
- CDUxCTA (NCT05687006)
- Testing
- Colour Doppler Ultrasound
- Where
- Czechia
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- St. Anne's University Hospital Brno, Czech Republic
Placenta Accreta, Placenta Previa
Ultrasound in Prediction of Operative Findings in Cesarean Section Among Placenta Accreta Cases
A total of 60 women pregnant more than 28 weeks gestation will be recruited from obstetric outpatient clinic (faculty of medicine -Cairo University Hospital) after being diagnosed of having placenta previa or low lying placenta…
- Trial name
- NCT03286998
- Where
- 2 sites in Egypt
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Cairo University
Preterm Birth, Prenatal Care Late
This Study Was to Investigate the Efficacy of Fetal Right Heart Doppler Findings in Determination of Pulmonary Maturity
Objective: The aim of this study was to investigate the efficacy of fetal right heart doppler findings in determination of pulmonary maturity.
- Conditions
- Preterm Birth, Prenatal Care Late, Preterm Labor
- Trial name
- NCT04296591
- Testing
- fetal heart doppler findings
- Volunteers
- 1 people, healthy volunteers welcome
- Sponsor
- Karadeniz Technical University
Congestive Heart Failure (CHF)
Evaluation of Blood Flow Patterns in Lung Blood Vessels Using Ultrasound Technique in Patients With Congestive Heart Failure
Historically, transthoracic Doppler echocardiography has been unable to provide interpretable data of blood flow within the lung parenchyma because of air attenuation of Doppler signals.
- Trial name
- NCT01744210
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Echosense Ltd.
Obesity
Peripheral Vasodilation in Obese Humans
The growing population of obese adults is predicted to create a large public health burden in the next few decades. This study examines function of small blood vessels providing blood flow to skeletal muscles, to test if younger…
- Trial name
- ObeseDilate (NCT02833207)
- Testing
- Drug Trial 1 (EDD), Drug Trial 2 (ROV)
- Where
- United States
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
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
Arteriovenous Fistula
Color Doppler Ultrasonography in Prediction of Arteriovenous Fistula Maturation in Hemodialysis Patients
The transplant is the definitive treatment of renal insufficiency, in our days. While waiting for it, the arteriovenous fistula surgery is standard procedure.
- Trial name
- NCT03171701
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Assiut University