Clinical trials: Echocardiography
Atrioventricular Block, Sick Sinus Syndrome
AV Delay Optimization vs. Intrinsic Conduction in Pacemaker Patients With Long PR Intervals
This is a randomized, prospective clinical trial to determine the effects of two different pacemaker atrioventricular delay (AV delay) settings on heart function in patients with dual chamber pacemakers implanted for symptomatic…
- Conditions
- Atrioventricular Block, Sick Sinus Syndrome, Symptomatic Bradycardia, Cardiac Arrhythmia
- Trial name
- AV Delay (NCT02154750)
- Testing
- Long, fixed AV delay, Short, optimized AV delay
- Where
- United States
- Volunteers
- 23 people
- Sponsor
- University of California, San Diego
Heart Failure
Intra-procedural Transthoracic EChocardiogram to Facilitate Left Bundle Branch Area Pacing (LBBAP)
The goal of this observational study is to learn more about whether or not the use of heart ultrasound during pacemaker implantation is helpful. The main questions this aims to answer are: 1.
- Trial name
- EC-LBBAP (NCT05646251)
- Testing
- Heart Ultrasound
- Where
- United States
- Volunteers
- 33 people
- Sponsor
- Geisinger Clinic
Mitral Valve Insufficiency, Mitral Valve Regurgitation
Real World Expanded Multicenter Study of the MitraClip® System (REALISM)
Prospective, multicenter, continued access registry of the MitraClip® Cardiovascular Valve Repair System in the treatment of mitral valve regurgitation.
- Conditions
- Mitral Valve Insufficiency, Mitral Valve Regurgitation, Mitral Valve Incompetence, Mitral Regurgitation
- Trial name
- REALISM (NCT01931956)
- Testing
- MitraClip® implant
- Where
- 38 sites in United States
- Volunteers
- 965 people
- Sponsor
- Abbott Medical Devices
Coronary Artery Disease, Myocardial Perfusion Abnormalities
Regadenoson R-T Perfusion Imaging Trial
To exam the feasibility and accuracy of Regadenoson real time perfusion (RTPE) Imaging during vasodilator stress with Regadenoson for detection of significant coronary artery disease (CAD) in patients scheduled to undergo…
- Trial name
- NCT00837369
- Testing
- Regadenoson
- Where
- 2 sites in United States
- Volunteers
- 100 people
- Sponsor
- University of Nebraska
Cardiac Disease
DEF-315 Better Accuracy in Ejection Fraction (EF) Assessment With DEFINITY
This is a Phase 3, prospective, open-label, multicenter study to evaluate Left Ventricular Ejection Fraction (LVEF) measurement accuracy and reproducibility of DEFINITY® contrast-enhanced and unenhanced echocardiography as…
- Trial name
- BENEFIT2 (NCT03719612)
- Testing
- DEFINITY®
- Where
- 15 sites in United States
- Volunteers
- 160 people
- Sponsor
- Lantheus Medical Imaging
Cardiac Disease
A Dose Ascending Study to Evaluate the Safety of NH002 as a Contrast Agent in Cardiac Echocardiography
NH002 (Perflutren Lipid Microspheres) Injectable Suspension is an ultrasound contrast agent for use in patients with suboptimal echocardiograms to opacify the left ventricular (LV) chamber and to improve the delineation of the LV…
- Trial name
- NCT04185246
- Testing
- NH002 (Perflutren Lipid Microspheres) Injectable Suspension, Echocardiogram
- Where
- 2 sites in Taiwan
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Trust Bio-sonics, Inc.
Metabolic Syndrome, Obesity
Exercise,Metabolic Syndrome and Weight Regain (Echocardiography Substudy)
We plan to test the hypothesis that patients with metabolic syndrome will have impaired left ventricular diastolic parameters. These parameters will be measured before and after a stress test at the end of a 3 month period of…
- Trial name
- NCT00543985
- Testing
- Stress Echocardiography
- Volunteers
- 36 people
- Sponsor
- University of Missouri-Columbia
Preoperative Period, Echocardiography
Preoperative Pocket Echocardiography Trial
This study will compare findings using a handheld ultrasound device (GE VScan) with those using a diagnostic ultrasound machine in adult patients referred for transthoracic echo (TTE), prior to non-cardiac surgery at Hammersmith…
- Trial name
- POPPET (NCT02589808)
- Testing
- Full TTE, GE Vscan
- Where
- United Kingdom
- Volunteers
- 76 people
- Sponsor
- Imperial College London
Diabetes Mellitus, Heart Failure
Results of Tc99m-Maraciclatide Scintigraphy in Subjects With Diabetes Mellitus and Heart Failure With Preserved Left Ventricular Ejection Fraction
The purpose of this study is to evaluate the results of 99mTc maraciclatide scintigraphy in diabetic subjects with HFPEF. A maximum of 20 subjects with Diabetes Mellitus (DM) and Heart Failure With Preserved Left Ventricular…
- Trial name
- NCT01440517
- Testing
- Tc99m-Maraciclatide
- Where
- United States
- Volunteers
- 4 people
- Sponsor
- GE Healthcare
Complication of Surgical Procedure
Factors Responsible for the Effectiveness of the Lund De-airing Technique
The Lund de-airing technique is employed for cardiac de-airing in open left heart surgery. It consists of two main elements namely, opening of both pleura after the patient is on CPB (cardiopulmonary bypass)and disconnection of…
- Trial name
- NCT01757704
- Testing
- Open pleurae & conventional filling of heart, Intact pleurae & staged filling of heart
- Where
- Sweden
- Volunteers
- 20 people
- Sponsor
- Lund University
Heart Failure
Biventricular Pacing After Cardiopulmonary Bypass
The purpose of this study is to investigate the efficacy of optimized temporary biventricular pacing (BiVP) in patients undergoing open-heart surgery with preoperative LV dysfunction and an intraventricular conduction delay.
- Trial name
- BIPACS (NCT00498940)
- Testing
- Optimization Testing, Temporary Biventricular Pacing
- Where
- United States
- Volunteers
- 111 people
- Sponsor
- Henry M. Spotnitz
Echocardiography
GE CVUS Device Evaluation
The purpose of the study is to collect user feedback on the Vivid E95 ultrasound system and probes during clinical procedures on the device's intended population in order to optimize the device.
- Trial name
- NCT05340244
- Testing
- Investigational ultrasound exam
- Where
- United States
- Volunteers
- 8 people
- Sponsor
- GE Healthcare
Smoking
Airway and Pulmonary Vascular Endothelial Function in Healthy Smokers: Effect of Inhaled Glucocorticosteroid Treatment
The purposes of the present proposal are to 1) compare inhaled albuterol-induced changes in airway blood flow (Qaw), and in CO and Ppas in healthy current smokers and lifetime non-smokers as an index of endothelial function in…
- Trial name
- smoker3 (NCT02141633)
- Testing
- echocardiogram plus albuterol, airway blood flow plus albuterol, Fluticasone propionate
- Where
- United States
- Volunteers
- 31 people, healthy volunteers welcome
- Sponsor
- University of Miami