Clinical trials: Doppler
Aortic Stenosis
Microembolic Signals and Serum Markers of Neuronal Damage During Transcatheter Aortic Valve Implantation.
Transcatheter Aortic Valve Implantation (TAVI) using femoral access is an option for definitive treatment of aortic stenosis when open-heart surgery is considered inappropriate.
- Trial name
- NCT01237743
- Testing
- Transcatheter aortic valve implantation.
- Where
- Sweden
- Volunteers
- 21 people
- Sponsor
- Sahlgrenska University Hospital
Congenital Heart Defects
Use of Color Doppler in Routine Examination of Fetal Heart in Second Trimester
To evaluate the percentage of severe heart defect diagnosed with the use of color Doppler at a routine fetal scan in the second trimester of pregnancy
- Trial name
- NCT01201486
- Where
- Norway
- Volunteers
- 6,781 people
- Sponsor
- Helse Stavanger HF
Right-to-left Shunt, Migraine
Registry of Right-to-left Shunt Detection by Contrast-enhanced Transcranial Doppler in Chinese Population
The purpose of the study is to evaluate the prevalence and extent of right-to-left shunt (RLS) in Chinese migraineurs, and the morbidity of silent cerebral infarction in migraineurs.
- Conditions
- Right-to-left Shunt, Migraine, Cerebral Infarction
- Trial name
- NCT02425696
- Where
- China
- Volunteers
- 1,100 people, healthy volunteers welcome
- Sponsor
- Yingqi Xing
Cardiopulmonary Arrest
Measurement of Cerebral Flow Using Transfontanellar Doppler in Infants Under Cardiopulmonary Bypass
Transfontanellar Doppler can measure the velocity at both the carotid artery and the anterior cerebral artery during cardiopulmonary bypass in congenital heart disease patients.
- Trial name
- NCT01996020
- Where
- South Korea
- Volunteers
- 43 people
- Sponsor
- Seoul National University Hospital
Sickle Cell Disease, Stroke
Primary Prevention of Stroke in Children With Sickle Cell Anaemia in Nigeria in the Community
The overall goal of this feasibility study is to establish a standard of care stroke prevention program for children with sickle cell anemia in a community hospital by task shifting stroke detection and transcranial Doppler…
- Trial name
- SPRING-COM (NCT05434000)
- Testing
- Hydroxyurea
- Where
- Nigeria
- Volunteers
- 217 people
- Sponsor
- Barau Dikko Teaching Hospital
Infertility
IS Three d Power Doppler of the Endometrial and Subendometrial Regions Effective in Predicting Endometrial Implantation?
Three D power Doppler US was done for every woman at the day after HCG administration. Ovum pick up was done after 35 hours following HCG administration.
- Trial name
- NCT04081870
- Testing
- 3D power doppler US
- Volunteers
- 120 people
- Sponsor
- Benha University
Premature
dTDI During a SBT to Predict Extubation Failure in Preterm Infants
Weaning from mechanical ventilation is a critical issue and the diaphragmatic disfunction has been demonstrated to play an important role in extubation failure.
- Trial name
- NCT05865977
- Testing
- diaphragmatic tissue Doppler imaging，dTDI
- Where
- China
- Volunteers
- 100 people
- Sponsor
- Wang Jianhui
Infertility
Physiotherapy Treatment for Uterine Blood Flow Improved Dimensional Ultrasound Evaluated With Angiography
Ivanovski shows that by studying the vascular impedance can calculate the optimal uterine receptivity in IVF. A reduced vascular resistance and increased blood flow rate improves the chance of pregnancy. Dr. Luis T.
- Trial name
- NCT02437435
- Testing
- Reproductive Technique Gimilio
- Where
- Spain
- Volunteers
- 54 people
- Sponsor
- University of Valencia
Appendicitis Acute
Role of Duplex Doppler in Accurate Diagnosis of Appendicitis
To evaluate the role of duplex doppler in diagnosis of appendicitis compared to CT
- Trial name
- NCT04130074
- Testing
- duplex doppler ultra sound and CT
- Where
- Egypt
- Volunteers
- 100 people
- Sponsor
- abdelRahman Ahmad abdAllah
Rotator Cuff Tear or Rupture, Not Specified as Traumatic
Bursa Augmentation in Arthroscopic Rotator Cuff Repair
The aim of this first study is to investigate in a case series through sequential sonographic imaging, using Doppler ultrasonography, the postoperative morphology, especially vascularity and findings of neovascularity, after…
- Trial name
- ARCR-Bursa (NCT03986749)
- Testing
- Doppler ultrasonography after bursa augmentation
- Where
- Switzerland
- Volunteers
- 30 people
- Sponsor
- Schulthess Klinik
Sickle Cell Disease
Study to Evaluate the Effect of GBT440 on TCD in Pediatrics With Sickle Cell Disease
This study is a Phase 3, randomized, double-blind, placebo-controlled study of voxelotor in pediatric participants, aged ≥ 2 to < 15 years old, with Sickle Cell Disease.
- Trial name
- HOPE Kids 2 (NCT04218084)
- Testing
- Voxelotor
- Where
- 35 sites in United States, Egypt and 7 more
- Volunteers
- 236 people
- Sponsor
- Pfizer
Intracranial Hypertension
Non Invasive Measurement With Trans Cranial Doppler Versus Invasive Measurement in Pediatric Age
An increase of intracranial pressure (ICP) is an important cause of secondary brain damage. The gold standard for measuring ICP is represented by invasive positioning of intracranial ICP devices.
- Trial name
- nICPped (NCT05340062)
- Testing
- bedside sonography
- Where
- 6 sites in Italy
- Volunteers
- 46 people
- Sponsor
- Azienda Ospedaliera di Padova
Dacryocystitis; Chronic, Lacrimal Sac Space-occupying Lesions
Color Doppler Ultrasound in Lacrimal Sac Space-occupying Lesions
Dacryocystitis and nasolacrimal duct obstruction are the main common causes of epiphora. Dacryocystorhinostomy (DCR) is a widely used and effective treatment for dacryocystitis and nasolacrimal duct obstruction.
- Conditions
- Dacryocystitis; Chronic, Lacrimal Sac Space-occupying Lesions, Color Doppler Ultrasound, Computed Tomography
- Trial name
- NCT05500950
- Testing
- CDU and CT-DCG or CT examination
- Where
- China
- Volunteers
- 21 people
- Sponsor
- Wenzhou Medical University
Placental Insufficiency, NEC - Necrotizing Enterocolitis
Splanchnic Oxygenation Response to Enteral Feeds in Preterm Infants With Abnormal Antenatal Doppler.
Antenatal absent or reversed end-diastolic flow (AREDF) velocity through the umbilical arteries places preterm infants at significant risk for developing gastrointestinal complications, such as feeding intolerance, necrotizing…
- Conditions
- Placental Insufficiency, NEC - Necrotizing Enterocolitis, Newborn, Premature, Feeding Disorder Neonatal
- Trial name
- AREDF-SO (NCT02971566)
- Where
- Italy
- Volunteers
- 20 people
- Sponsor
- IRCCS Azienda Ospedaliero-Universitaria di Bologna
Head Injury
Transcranial Doppler Measurement and Prognosis in Moderate Head Injury
The purpose of this study is to determine whether Transcranial Doppler measurements have correlation with neuropsychological test (Galvestone Orientation Amnesia Test), TC image (Marshall Scale) and prognosis (DRS and GOS) in…
- Trial name
- NCT00353444
- Where
- Mexico
- Volunteers
- 70 people
- Sponsor
- Universidad Autonoma de San Luis Potosí
Cardiac Output
Validation of CardioQ Versus PiCCO in Children
To compare the less invasive Oesophageal Doppler cardiac output Monitor (ODM) to the invasive (standard of care) Transpulmonary Thermodilution cardiac output monitor (TPTD) in children.
- Trial name
- CQPiCCO (NCT03172689)
- Testing
- CardioQ
- Where
- Netherlands
- Volunteers
- 11 people
- Sponsor
- Radboud University Medical Center
Number of Deep Venous Thrombosis (DVT)
Doppler Ultrasound Following Unicondylar Knee Replacement to Determine the Incidence of Postoperative DVT
Purpose of this study is to determine the incidence of deep venous thrombosis after partial knee replacement.
- Trial name
- NCT02148757
- Testing
- Doppler Ultrasound
- Where
- United States
- Volunteers
- 112 people
- Sponsor
- Hospital for Special Surgery, New York
Growth Hormone Deficiency, Small-for-gestational Age
Growth and Asymmetric diMethylArginine
Principal objective : Validation of a handy biochemical parameter, plasma concentration of Asymmetric DimethylArginine (ADMA), based on a recognize biochemical parameter, the dilation of the brachial artery, at ultrasound…
- Trial name
- GAMMA (NCT03422081)
- Testing
- arterial doppler ultrasound
- Where
- 2 sites in France
- Volunteers
- 23 people
- Sponsor
- University Hospital, Lille
Doppler in Normal Pregnancy
Normogram of Umbilical Artery and Fetal Middle Cerebral Artery Doppler Indices in Upper Egyptian Women
settle umbilical and fetal middle cerebral arteries Doppler indices( pulsatility index and resistive index) in normal pregnancy to generate a local reference range and calculate cerebroplacental ratio.
- Trial name
- NCT06761794
- Volunteers
- 520 people
- Sponsor
- Assiut University
Neonatal Sepsis, Markers
Tissue Doppler Echocardiographic Assessment of Cardiac Function in Neonatal Sepsis
1. To assess myocardial function in neonates with sepsis using tissue doppler echocardiography. 2. To assess sepsis induced cardiac dysfunction. 3.
- Trial name
- NCT07572916
- Testing
- cardiac troponin, and blood culture
- Where
- Egypt
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Assiut University