Clinical trials: Ultrasonography, Doppler
Acute Right Heart Failure, Pulmonary Hypertension
Assessment of Peripheral Veins Doppler Ultrasound for Diagnosis of Acute Right Heart Failure in Suspicion or Follow-up of Pulmonary Hypertension
Occurrence of acute right heart failure (ARHF) remains common during pulmonary hypertension (PH). Right atrial pressure (RAP) invasive measurement is the gold standard to diagnose ARHF in order to improve diuretic treatment…
- Conditions
- Acute Right Heart Failure, Pulmonary Hypertension, Peripheral Veins Doppler Ultrasound
- Trial name
- CODOVEIN (NCT04792879)
- Testing
- Peripheral veins Doppler ultrasound
- Where
- France
- Volunteers
- 103 people
- Sponsor
- Poitiers University Hospital
Raynaud Phenomenon Due to Trauma, Raynaud Disease
Topical 10 % Nifedipine Versus 5% Sildenafil in Secondary Raynaud
Objective: To compare the efficacy of topical 10% nifedipine versus 5% sildenafil in patients with secondary Raynaud's phenomenon (RP).
- Conditions
- Raynaud Phenomenon Due to Trauma, Raynaud Disease, System; Sclerosis, Lupus Erythematosus, Systemic
- Trial name
- NCT03027674
- Testing
- 10% nifedipine cream, 5% sildenafil cream
- Where
- Chile
- Volunteers
- 10 people
- Sponsor
- Pontificia Universidad Catolica de Chile
Septic Shock, Vein Collapsibility
Fluid Responsiveness in Septic Shock Evaluated by Caval Ultrasound Doppler Examination
The study aims at clarification of venous collapsibility measures with real venous flow measurements during dynamic maneuver testing fluid responsiveness in septic shock patients.
- Conditions
- Septic Shock, Vein Collapsibility, Intravascular Doppler, Volume Responsiveness in Septic Shock
- Trial name
- FRIEND (NCT02676427)
- Testing
- passive leg raising
- Where
- Czechia
- Volunteers
- 60 people
- Sponsor
- Charles University, Czech Republic
Active Sacroiliitis in Ankylosing Spondylitis
Color Doppler Ultrasonography in Evaluation of Active Sacroiliitis in Ankylosing Spondylitis
Evaluate the role of color Doppler ultrasonography (CDUS) in detection of active sacroiliitis in Ankylosing Spondylitis patients using MRI of the sacroiliac joints as a gold standard.
- Trial name
- NCT04329182
- Volunteers
- 40 people
- Sponsor
- Assiut University
Infertility
Perifollicular Vascularity Assessment in in-Vitro Fertilization
On February 2004, a law (n. 40/2004) regulating assisted reproduction techniques (ARTs) was approved in Italy. This law aimed to regulate the treatment of infertility in Italy, contains several restrictions, such as the…
- Trial name
- NCT00458380
- Testing
- Controlled ovarian stimulation, perifollicular vascularity assessment, IVF, embryo transfer.
- Where
- Italy
- Volunteers
- 116 people
- Sponsor
- University Magna Graecia
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
Hemophilia A, Hemophilia B
Ultrasonography in Hemophilic Joint Disease and Serum Markers
Hemophilia is a bleeding disorder (deficiency of a blood clotting factor/ protein) resulting in bleeding in joints and muscles. As patients continue to bleed into their joints they develop progressive joint damage leading to…
- Conditions
- Hemophilia A, Hemophilia B, Hemarthroses
- Trial name
- NCT02634918
- Testing
- ultrasound
- Where
- United States
- Volunteers
- 30 people
- Sponsor
- Northwell Health
Pediatric Tumor
Role of Gray Scale and Color Doppler Ultrasound in Diagnosis of Pediatric Neck Masses
Our aim is to assess the role of the gray scale and color Doppler ultrasound in diagnosis of the different pediatric neck masses .
- Trial name
- NCT04856020
- Volunteers
- 96 people
- Sponsor
- Assiut University
Postmenopausal Bleeding
Endometrial Evaluation in Cases of Postmenopausal Bleeding
The aim of this prospective observational study is to evaluate abnormal uterine bleeding in postmenopausal women using 3D(dimensional) ultrasound assessment of endometrial volume .Doppler assessment of endometrium and…
- Trial name
- NCT03847415
- Testing
- ultrasound
- Volunteers
- 100 people
- Sponsor
- Cairo University
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
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
Arteritis
Comparison of Two Under Knee Lower Limb Bypass Types:Endothelialised Prosthesis Versus Autologous Vein Graft
The aim of this project is to improve the hemocompatibility of vascular prosthesis with a complete covering of its endoluminal surface with autologous endothelial cells.
- Trial name
- NCT00221806
- Testing
- endothelialised prosthesis
- Where
- France
- Volunteers
- 40 people
- Sponsor
- University Hospital, Bordeaux
Systemic Sclerosis, Pulmonary Hypertension
Detecting Pulmonary Arterial Hypertension (PAH) in Patients With Systemic Sclerosis (SSc) by Ultrasound
Doppler signals can be recorded from the lung parenchyma by means of a pulsed Doppler ultrasound system incorporating a special signal processing package; i.e.
- Trial name
- NCT02243111
- Testing
- Doppler ultrasound
- Where
- Israel
- Volunteers
- 1 people
- Sponsor
- Echosense Ltd.
Acute Brain Injuries, TBI (Traumatic Brain Injury)
Dynamic and Static Autoregulation After Brain Injury
The aim of the study assesses static and dynamic cerebrovascular autoregulation daily over one week in patients with traumatic brain injury or intracranial hemorrhage to quantify the temporal profile of the autoregulatory status.
- Conditions
- Acute Brain Injuries, TBI (Traumatic Brain Injury), Intracranial Hemorrhages
- Trial name
- NCT01069250
- Testing
- There are no interventions in this study
- Where
- Germany
- Volunteers
- 16 people
- Sponsor
- Johannes Gutenberg University Mainz
Traumatic Brain Injury, Subarachnoid Hemorrhage
NOninVasive Intracranial prEssure From Transcranial doppLer Ultrasound Development of a Comprehensive Database of Multimodality Monitoring Signals for Brain-Injured Patients
This is an observational study in neurocritical care units at University of California San Francisco Medical Center (UCSFMC), Zuckerberg San Francisco General Hospital (ZSFGH), UC Davis, and Emory University.
- Conditions
- Traumatic Brain Injury, Subarachnoid Hemorrhage, Intracerebral Hemorrhage, Liver Failure
- Trial name
- NOVEL ICP (NCT04548596)
- Testing
- Transcranial Doppler
- Where
- 3 sites in United States
- Volunteers
- 162 people
- Sponsor
- Emory University
Respiratory Failure, Multi Organ Failure
Doppler Ultrasound Renal Arterial Resistive Indices As Predictor Of Multiorgan Failure In Patients With Acute Hypoxic Respiratory Failure Admitted To Respiratory Intensive Care Unit (Cryptic Shock Index- RICU)
Patients with de novo respiratory failure undergoing non invasive ventilation (NIV) present failure rates of mechanical ventilation ranging from 4 to 50%.
- Trial name
- CSI-RICU (NCT03897920)
- Testing
- Doppler ultrasound assessment of renal arteria resistive index
- Volunteers
- 30 people
- Sponsor
- University of Modena and Reggio Emilia