Clinical trials: Echocardiography, Doppler
Surgery--Complications, Congestive Heart Failure
The Clinical Significance of Portal Hypertension After Cardiac Surgery: a Multicenter Prospective Observational Study
Portal flow pulsatility detected by Doppler ultrasound is an echographic marker of cardiogenic portal hypertension from right ventricular failure and is associated with adverse outcomes based on previous studies performed at the…
- Conditions
- Surgery--Complications, Congestive Heart Failure, Right Heart Failure, Anesthesia
- Trial name
- TECHNO-MULTI (NCT03656263)
- Testing
- Doppler assessment of portal vein flow
- Where
- Canada
- Volunteers
- 360 people
- Sponsor
- Montreal Heart Institute
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
Coronary Artery Disease
TDI Preejection Velocities and Myocardial Viability
The purpose of the study is to test accuracy of positive preejection velocity to predict left ventricular remodeling and long-term prognosis after revascularization in 200 patients with chronically dysfunctional myocardium.
- Trial name
- NCT00231205
- Testing
- Revascularization
- Where
- Czechia
- Volunteers
- 200 people
- Sponsor
- Charles University, Czech Republic
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
Cardiac Output Measurement
MostCare Versus Echo-Doppler for Cardiac Output Measurement
Recently, an uncalibrated minimally invasive Pulse-code Modulator (PCM) has been developed: the MostCare system. This monitoring system is powered by Pressure Recording Analytical Method (PRAM), which is based on the mathematical…
- Trial name
- PRAM (NCT01678950)
- Where
- 14 sites in France, Italy and 2 more
- Volunteers
- 400 people
- Sponsor
- Azienda Ospedaliera Universitaria Senese
Stable Angina Pectoris, Unstable Angina Pectoris
Non-invasive Diagnosis of Coronary Artery Stenoses by Doppler Echocardiography
Non-invasive evaluation of patients with stable angina and unstable coronary syndromes with transthoracic Doppler echocardiography to evaluate presence of significant coronary stenoses.
- Conditions
- Stable Angina Pectoris, Unstable Angina Pectoris, Acute Myocardial Infarction
- Trial name
- NCT00281346
- Testing
- Doppler echocardiography
- Where
- Norway
- Volunteers
- 110 people
- Sponsor
- Norwegian University of Science and Technology
Critical Care, Weaning of Mechanical Ventilation
A Cardiac Ultrasound Evaluation of Two Types of Weaning Trials of Mechanical Ventilation for a First Weaning Trial
Comparing the hemodynamic and cardiac effects of two types of weaning trials of mechanical ventilation in ICU patients of two French ICU.
- Conditions
- Critical Care, Weaning of Mechanical Ventilation, Trans-thoracic Echocardiography, Mitral Doppler
- Trial name
- CARWEAN (NCT02138903)
- Testing
- trans thoracic echocardiography
- Where
- France
- Volunteers
- 120 people
- Sponsor
- University Hospital, Clermont-Ferrand
Foramen Ovale, Patent, Migraine
Effectiveness and Safety of Transcatheter Patent Foramen Ovale Closure for Migraine
The purpose of the study is to evaluate effectiveness and safety of transcatheter patent foramen ovale closure for migraine.
- Trial name
- EASTFORM (NCT02127294)
- Testing
- transcatheter patent foreman ovale closure
- Where
- China
- Volunteers
- 258 people
- Sponsor
- Yi Yang
Heart Valve Incompetence, Echocardiography, Transthoracic
The FUnctional TricUspid REgurgitation by 3D EChocardiography Cooperative Study
Prospective, multicenter, observational study to enroll consecutive patients with functional tricuspid regurgitation (FTR) with the primary aim to: Use patients' outcomes as a reference to try to define the threshold values for…
- Trial name
- FUTURE 3D (NCT05747404)
- Testing
- Echocardiography
- Where
- 4 sites in Italy, Romania
- Volunteers
- 1,500 people
- Sponsor
- Istituto Auxologico Italiano
Breast Cancer
Early Detection and Prediction of Chemotherapy Induced Cardiac Toxicity in Breast Cancer Patients
The goal of this clinical research study is to learn whether different ways of viewing echocardiogram pictures along with blood tests can help to see heart-related side effects of chemotherapy and trastuzumab earlier than the…
- Trial name
- NCT00806507
- Testing
- Echocardiograms, Blood Test
- Where
- 2 sites in United States
- Volunteers
- 45 people
- Sponsor
- M.D. Anderson Cancer Center
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
Heart Failure
Utility of Tissue Doppler Echocardiography for Selecting Patients for Cardiac Resynchronisation Therapy
Currently the main selection tool for Cardiac Resynchronisation Therapy (CRT) is the QRS duration on the surface echocardiography (ECG) which has been shown to be a poor predictor of response.
- Trial name
- TIBI-HF (NCT01100918)
- Testing
- BiV ICD, ICD
- Where
- United Kingdom
- Volunteers
- 80 people
- Sponsor
- Barts & The London NHS Trust
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
Mechanical Circulatory Support
BRAIN-HEART Ultrasound Study Normative Values for Transcranial Doppler Based Cerebral Blood Flow Assessment
There is a dire need to establish normative values for transcranial Doppler(TCD) derived cerebral blood flow parameters for each type of Mechanical circulatory support (MCS) device and explore the relationship between the MCS…
- Trial name
- MCS (NCT05924503)
- Where
- United States
- Volunteers
- 6 people
- Sponsor
- Wake Forest University Health Sciences
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
Right to Left Shunt, Patent Foramen Ovale
Right to Left Cardiac Shunt Detection
The purpose of this study is to evaluate the sensitivity and specificity of the Cardiox Flow Detection System (FDS) in identifying an intracardiac right-to-left shunt (RLS) compared to the results of transesophageal…
- Conditions
- Right to Left Shunt, Patent Foramen Ovale, Atrial Septal Defect
- Trial name
- PFO Detection (NCT01773252)
- Testing
- Flow Detection System
- Where
- 8 sites in United States
- Volunteers
- 141 people
- Sponsor
- Cardiox Corporation
Mitral Valve Insufficiency
Determinants of the Progression and Outcome of Mitral Regurgitation
Mitral regurgitation (MR) is one of the most frequent valve lesions, both in North America and in Europe, and its prevalence is increasing with the aging of the population.
- Trial name
- PROGRAM (NCT01835054)
- Testing
- Blood biomarkers, DNA collection, Echocardiography
- Where
- 4 sites in Belgium, Canada and 1 more
- Volunteers
- 440 people
- Sponsor
- Laval University
Atrial Fibrillation
Impact of Left Atrial Function on Postoperative Atrial Fibrillation
We aimed to demonstrate the impact of left atrial functions which were evaluated by three different echocardiographic modalities , on postoperative atrial fibrillation.
- Trial name
- NCT00646997
- Where
- Turkey (Türkiye)
- Volunteers
- 80 people
- Sponsor
- Florence Nightingale Hospital, Istanbul
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
Congestion, Heart Failure
Portal Vein Flow Variability to Quantify Right-Sided Hemodynamic Congestion (PORTAL)
This study evaluates the accuracy of a comprehensive venous Doppler echography including the portal vein pulsatility index (PVPI) to quantify invasively measured right-sided venous pressures.
- Conditions
- Congestion, Heart Failure, Right Heart Catheterisation, Central Venous Pressure
- Trial name
- PORTAL (NCT05411263)
- Testing
- Comprehensive transthoracic echocardiography, Doppler echography & Kino-cardiograph (Kino)
- Where
- Belgium
- Volunteers
- 61 people
- Sponsor
- Vrije Universiteit Brussel