Clinical trials: Doppler Echocardiography
Coronary Artery Disease
2D and Tissue Doppler Imaging Echocardiography Analysis of Left Ventricular Regional Wall Motion and Prognosis
Development of myocardial ischemia, and/or myocarditis would induce different changes in myocardial contraction behavior pattern,which maybe very subtle, and may not be detected by the 2D and m-mode echocardiography examinations.
- Trial name
- TDI (NCT01092429)
- Where
- Taiwan
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- Chang Gung Memorial Hospital
Smoking
Acute Cardiovascular Effects of Cigarette Smoking
Twenty healthy smokers will be subjected to measurement of Pulse, Blood Pressure, electrocardiogram (ECG) and Echo at baseline and after smoking a cigarette.
- Trial name
- NCT01346956
- Where
- India
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Andhra Medical College
Acute Coronary Syndrome, Myocardial Infarction (MI)
Clinical Echocardiography and S' Wave for Early Recognition of Acute Coronary Syndrome in the Emergency Department, A Prospective Study
The goal of this prospective observational study is to assess the diagnostic accuracy of the tissue Doppler imaging (TDI) S' wave in detecting acute coronary syndrome (ACS) in adult patients presenting to the emergency department…
- Conditions
- Acute Coronary Syndrome, Myocardial Infarction (MI), Non-ST Elevation Myocardial Infarction, Unstable Angina
- Trial name
- CLEAR_ECHO (NCT06860997)
- Testing
- Tissue Doppler Imaging (TDI) S' Wave Echocardiography
- Where
- Belgium
- Volunteers
- 66 people, healthy volunteers welcome
- Sponsor
- Cliniques universitaires Saint-Luc- Université Catholique de Louvain
Haemodynamic Rebound
Hemodynamic Repercussions of Noninvasive Ventilation
The noninvasive ventilation (NIV) is a method of ventilatory support that does not require artificial airway. Its application is associated with complex hemodynamic repercussions, therefore is important to identify them for…
- Trial name
- NCT02139631
- Testing
- Noninvasive ventilation
- Where
- Brazil
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Federal University of Uberlandia
Echocardiography, Doppler
Technical Development of Strain Rate Echocardiography
This study will examine heart function using two imaging techniques - echocardiography (ultrasound) and magnetic resonance imaging (MRI) - to evaluate newly developed software for echocardiograph machines.
- Trial name
- NCT00075920
- Where
- United States
- Volunteers
- 125 people, healthy volunteers welcome
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
Mechanical Dyssynchrony, Heart Failure
Evaluating Effects of a Left Bundle Branch Block
A left bundle branch block (LBBB) is related to abnormal cardiac conduction and mechanical asynchrony and is associated with hypertension and coronary artery disease.
- Conditions
- Mechanical Dyssynchrony, Heart Failure, Bundle-Branch Block
- Trial name
- NCT00269659
- Where
- Netherlands
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Amsterdam UMC, location VUmc
Diastolic Dysfunction, Neonatal Encephalopathy
Assessment of Diastolic Function During the Transitional Period and Infancy Using Serial Echocardiography
The goal of this single-centre longitudinal observational study is to create reference values for diastolic function parameters in neonates born at 35 weeks' gestation or above, and to assess the influence of pre-defined…
- Conditions
- Diastolic Dysfunction, Neonatal Encephalopathy, Small for Gestational Age at Delivery, Transient Tachypnea of the Newborn
- Trial name
- DiFuSE (NCT06200519)
- Where
- Ireland
- Volunteers
- 216 people, healthy volunteers welcome
- Sponsor
- University College Cork
Fetal Hypoxia
Assessment of Cardiac Sparing in Fetal Hypoxia
The fetal heart plays a central role in the adaptive mechanisms for hypoxemia and placental insufficiency. Longitudinal data on the hemodynamic sequence of the natural history of fetal growth restriction show that the umbilical…
- Trial name
- NCT03146507
- Testing
- Ultrasound, Doppler ultrasound, Fetal echocardiography
- Where
- Egypt
- Volunteers
- 210 people, healthy volunteers welcome
- Sponsor
- Assiut University
Atrial Fibrillation
Cavotricuspid Isthmusblock and Circumferential Pulmonary Vein Isolation in Patients With Atrial Fibrillation
Atrial fibrillation (AF) is the most common cardiac arrhythmia. Pulmonary vein isolation (PVI) in the left atrium using radiofrequency energy is a new and promising non-medical treatment in patients with symptomatic AF with…
- Trial name
- NCT00247780
- Testing
- Pulmonary vein isolation and cavotricuspid ishtmusblock
- Where
- Denmark
- Volunteers
- 149 people, healthy volunteers welcome
- Sponsor
- University of Aarhus
Perinatal Mortality, Neonatal Morbidities
Machine Learning From Fetal Flow Waveforms to Predict Adverse Perinatal Outcomes
The aim of this study is to get a proof of concept for using a computational model of fetal haemodynamics, combined with machine learning based on Doppler patterns of the fetal cardiovascular, cerebral and placental flows, to…
- Trial name
- NCT03398551
- Volunteers
- 525 people, healthy volunteers welcome
- Sponsor
- Aga Khan University
Hypertrophic Cardiomyopathy
Assessment of Left Ventricular Torsion by Echocardiography Study
The purpose of this study is to learn about the twisting or wringing motion of the heartbeat called Left Ventricular Torsion (LV Torsion) which can be seen on ultrasound.
- Trial name
- LVTorsion (NCT00589836)
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- The Cleveland Clinic
Septic Shock, Echocardiography Guided Fluid Management
Prediction of Fluid Responsiveness in Paediatric Patients With Septic Shock Using Carotid Doppler Ultrasonography and Echocardiography
The goal of this study is to evaluate the role of carotid Doppler and Echocardiography as a predictor of fluid responsiveness in paediatric patients with septic shock.
- Trial name
- NCT07136532
- Testing
- echocardiography
- Where
- Egypt
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Ain Shams University
Aortic Valve Stenosis
Metabolic Determinants of the Progression of Aortic Stenosis
Calcific aortic stenosis (AS) has become the most common cardiac disease after coronary artery disease and hypertension. Unfortunately no medical therapies have been proven to decrease either the progression of valve stenosis or…
- Trial name
- PROGRESSA (NCT01679431)
- Testing
- Doppler-echocardiography, Computed tomography, Magnetic resonance imaging
- Where
- Canada
- Volunteers
- 250 people, healthy volunteers welcome
- Sponsor
- Laval University
Diabetes type1, Healthy
Impact of Gravity on Cardiac Hemodynamics
The goal of this clinical trial is to define and compare pre-load dependance of the cardiac function according to the intracardiac hydrostatic gradient of pressure in healthy and diabetic populations.
- Trial name
- ACUITY (NCT06190756)
- Testing
- Cardiovascular and Baroreflex stimulation by Tilting, Cardiovascular and Baroreflex stimulation by Lower Body Negative Pressure
- Where
- France
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University Hospital, Caen
Cardiovascular Diseases
Chronic and Acute Effects of Smoking on the Left and Right Ventricular Relaxation in Young Healthy Smokers
Impairment of relaxation, the early phase of ventricular diastole is the first stage of heart diastolic dysfunction. Left ventricular diastolic function can be determined noninvasively by Echo- Doppler - derived mitral valve flow…
- Trial name
- NCT00395928
- Where
- Poland
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- Medical University of Warsaw
Diastolic Dysfunction
Effect of Exercise on Heart Function in Healthy Elderly People
The purpose of this study is to determine the effect of aerobic interval training on left- and right ventricular diastolic- and systolic function on healthy, sedate people over 70 years.
- Trial name
- NCT00804518
- Testing
- Aerobic interval training
- Where
- Norway
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Norwegian University of Science and Technology