Clinical trials: Doppler
Diabetes Type 2
Exercise Study on Cardiac Function in Patients With Diabetes Mellitus Type 2 and Diastolic Dysfunction
The aim of the study is to compare the effects of aerobic interval training and the IDF recommendations on physical activity on cardiac function and CV risk factors in patients with diabetes.
- Trial name
- NCT01206725
- Testing
- Exercise
- Where
- Norway
- Volunteers
- 47 people, healthy volunteers welcome
- Sponsor
- Norwegian University of Science and Technology
Term Pregnancy, Doppler Parameters
Relationship Between Delivery Route and Fetal Complications With Doppler Indices and CPR Parameters
Term pregnancies within their 37-41 gestational week, who were planned to undergo induction of labor, were included in the study.
- Conditions
- Term Pregnancy, Doppler Parameters, Induction of Labor, Fetal Complications
- Trial name
- Doppler (NCT04158609)
- Testing
- Doppler flow indices assessment
- Where
- Turkey (Türkiye)
- Volunteers
- 145 people, healthy volunteers welcome
- Sponsor
- Istanbul Medeniyet University
Fetal Growth Retardation, Preeclampsia
Management of Early-onset Fetal Growth Restriction: Angiogenic Factors Versus Feto-placental Doppler
This is a multicentre, open-label, randomized controlled trial. A total of 340 singleton pregnancies with an EFW ≤10th percentile between 26+0 and 31+6 weeks will be recruited and randomly allocated to either the control or the…
- Conditions
- Fetal Growth Retardation, Preeclampsia, Placenta Diseases
- Trial name
- earlyGRAFD (NCT05284474)
- Testing
- soluble fms-like tyrosine kinase to placental growth factor ratio (sFlt-1/PlGF)
- Where
- 27 sites in Spain
- Volunteers
- 340 people
- Sponsor
- Hospital Universitari Vall d'Hebron Research Institute
Recurrent Miscarriage
Role of Sildenafil Citrate in Patients With Unexplained Recurrent Miscarriages
The purpose of this study is to determine whether sildenafil citrate is effective in improving uterine artery blood flow and oxidative stress in patients with unexplained recurrent miscarriages
- Trial name
- NCT01419392
- Testing
- Sildenafil citrate
- Where
- Egypt
- Volunteers
- 80 people
- Sponsor
- Ain Shams University
Postoperative Delirium After On-pump Cardiac Surgery
Preoperative Transcranial Doppler as a Predictor for Delirium Following On-pump Cardiac Surgery
Postoperative delirium is an important problem in patients undergoing major cardiac surgery and associated with more complicated hospital course, increased hospital length of stay and total postoperative cost.
- Trial name
- NCT02478736
- Testing
- No actual intervention
- Where
- South Korea
- Volunteers
- 175 people
- Sponsor
- Yonsei University
Airway Extubation
Exploring the Use of Pulse Tissue Doppler in Predicting Extubation Success in Mechanically Ventilated Patients
Determining the appropriate extubation timing for mechanically ventilated patients is a critical issue in the Intensive Care Unit (ICU).
- Trial name
- NCT06154811
- Where
- China
- Volunteers
- 200 people
- Sponsor
- Affiliated Hospital of Jiangnan University
Obesity, Cerebrovascular Function
Respiratory Muscle Training to Improve Cerebrovascular and Immune Function
Millions of adults in America have too much body fat, resulting in obesity. Obesity is detrimental to health and causes disease. Obesity reduces brain health, which causes the brain to function less effectively.
- Conditions
- Obesity, Cerebrovascular Function, Immune Cells Activity
- Trial name
- NCT07406295
- Testing
- High intensity inspiratory muscle strength training, Low intensity
- Where
- United States
- Volunteers
- 30 people
- Sponsor
- Florida State University
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
Critical Illness, Elevated Left Atrial Pressure
The Use of Single-Beat TE-e' in Evaluation of Left Atrial Pressure in Critically Ill Patients: The TELAP-ICU Trial
This study evaluates a new single-beat echocardiographic technique (TE-e', the time difference between the onset of the mitral inflow E wave and the septal e' wave on tissue Doppler imaging) for estimating left atrial pressure…
- Conditions
- Critical Illness, Elevated Left Atrial Pressure, Left Ventricular Diastolic Dysfunction, Echocardiography
- Trial name
- TELAP-ICU (NCT07820319)
- Testing
- Echocardiography
- Where
- Hong Kong
- Volunteers
- 50 people
- Sponsor
- Queen Mary Hospital, Hong Kong
Kidney Transplant Failure and Rejection
Using the Speckle Doppler to Quantify Blood Flow in Kidney and Pancreas Grafts
Kidney and Pancreas transplantation is considered the treatment of choice for many people with End Stage Renal Disease and Type 1 diabetes because quality of life and survival is often better after transplantation.
- Trial name
- NCT04202237
- Testing
- Speckle Doppler imaging, Blood sample
- Where
- United Kingdom
- Volunteers
- 8 people
- Sponsor
- Manchester University NHS Foundation Trust
Microcirculatory Diffusion, Microcirculatory Convection Capacity
Association of Microcirculation, Vexus Score and Femoral Vein Doppler in Patients on the ICU After Non-emergency Cardiac Surgery
The aim of the VeMic study is to explore if venous congestion is linked with microcirculatory impairment in elective cardiac surgery patients in the postoperative ICU stay.
- Conditions
- Microcirculatory Diffusion, Microcirculatory Convection Capacity, Venous Congestion, Postoperative Cardiac Surgery
- Trial name
- VeMic (NCT07052461)
- Where
- Switzerland
- Volunteers
- 40 people
- Sponsor
- University Hospital, Basel, Switzerland
Giant Cell Arteritis
Validation of a Diagnostic Algorithm of Giant Cell Arteritis
Giant cell arteritis (GCA or temporal arteritis or cranial arteritis) or Horton disease is a vasculitis that occurs in older adults, affecting vessels of medium and large caliber.
- Trial name
- ECHORTON (NCT02703922)
- Testing
- color Doppler ultrasound and TAB in case of CDU negative
- Where
- 6 sites in France
- Volunteers
- 165 people
- Sponsor
- Poitiers University Hospital
Traumatic Brain Injury
TCD and ONSD for Early Risk Stratification of Traumatic Brain Injury
This observational study aims to evaluate the combined use of transcranial Doppler (TCD) and optic nerve sheath diameter (ONSD) ultrasound for early risk stratification of adults with traumatic brain injury (TBI) presenting to…
- Trial name
- TCD-ONSD (NCT07820527)
- Testing
- Transcranial Doppler and Optic Nerve Sheath Diameter Assessment
- Where
- Egypt
- Volunteers
- 60 people
- Sponsor
- Assiut University
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
Gastroesophageal Varices Hemorrhage
Color Doppler US and TE as Predictors for Presence of Gastroesophageal Varices and Variceal Bleeding in Patients With LC
The aim of the study is to evaluate the ability of Doppler ultrasonography of the portal vein and liver stiffness measurement using Transient Elestoghraphy in predicting prescence of gastroesophageal variceal and variceal…
- Trial name
- NCT05891184
- Testing
- color doppler ultrasound, transient elastography, upper endoscopy
- Volunteers
- 100 people
- Sponsor
- Assiut University
Peripheral Neuropathy
Early Detection of Taxane-Induced Neuropathy in Women With Breast Cancer
Purpose: The purpose of the study is to test a new way of measuring nerve damage in women with breast cancer receiving chemotherapy drug paclitaxel (Taxol).
- Trial name
- NCT02549534
- Testing
- Axon Reflexes, Axon Flares, Self-Reported Signs & Symptoms of CIPN
- Where
- 2 sites in United States
- Volunteers
- 29 people, healthy volunteers welcome
- Sponsor
- Indiana University
Acute Lung Injury/Acute Respiratory Distress Syndrome (ARDS)
VExUS in Ards Patients and Association with AKI
A single-center prospective observational study will be conducted with the aim of determining the prevalence of venous congestion during ARDS using venous Doppler and the VExUS score.
- Trial name
- VEXAKI (NCT06805409)
- Where
- France
- Volunteers
- 120 people
- Sponsor
- Assistance Publique - Hôpitaux de Paris
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
Preeclampsia
The Effect of Loading Dose of Magnesium Sulfate on Uterine, Umbilical, and Fetal Middle Cerebral Arteries Doppler, Biophysical Profile, CTG, Maternal Vital Signs in Women With Severe Preeclampsia
100 women with severe preeclanpsia received Magnesium sulfate 6 grams intravenous over 20 minutes as a loading dose. Resistance index [RI], pulsatility index [PI] and systolic/diastolic [S/D] ratio of the umbilical artery…
- Trial name
- NCT03891498
- Testing
- MgSO4
- Where
- Egypt
- Volunteers
- 100 people
- Sponsor
- Cairo University
Dysthyroid Orbitopathy
Morphometric Analysis of Orbital Structures in Graves´ Orbitopathy
The purpose of this protocol is to study orbital structures in Graves´ Disease using multidetector computed tomography and color doppler imaging.
- Trial name
- NCT00665795
- Where
- Brazil
- Volunteers
- 80 people
- Sponsor
- University of Sao Paulo