NCT06061757 · Kansas City Heart Rhythm Research Foundation
Use of 4D-ICE in Conjunction With TEE for Left Atrial Appendage Closure
What this study is about
This is a forward-looking, single center, non-randomly assigned study with two parallel treatment group$1 intended to study if 4D Intracardiac echocardiography (4D-ICE) (Nuvision, Nuvera TM) will provide better visualization of the anatomical landmarks from the larger imaging volume and provide optimal intra procedural guidance similar to Transesophageal echocardiography (TEE) (GE 6VT-D ULTRASOUND TRANSDUCER) for Left atrial appendage closure (LAAC). The study will enroll approximately 52 subjects and will be followed through 12 months.
View original scientific description
This is a prospective, single center, non-randomized study with two parallel arms intended to study if 4D Intracardiac echocardiography (4D-ICE) (Nuvision, Nuvera TM) will provide better visualization of the anatomical landmarks from the larger imaging volume and provide optimal intra procedural guidance similar to Transesophageal echocardiography (TEE) (GE 6VT-D ULTRASOUND TRANSDUCER) for Left atrial appendage closure (LAAC). The study will enroll approximately 52 subjects and will be followed through 12 months.
Interventions
DEVICE
Imaging guidance with TEE and ICE for Left atrial appendage closure
The occluder size for both LAAC devices will be selected based on the maximal diameter of the LAA orifice following the manufacturer guidelines and using the maximal length of the LAA measured on Echocardiogram. Intraprocedural measurements of the LAA width and depth were acquired on both ICE and TEE per protocol. Both ICE and TEE will be used to assess for any procedural complications prior to insertion of the device delivery sheath.
Primary outcome measures
Success of Implantation of Left Atrial Appendage Closure (LAAC) device
Time frame: 1 Day
Success of Implantation of Amulet or Watchman FLX device
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Male/Females
- Age:18-80 years
- History of Atrial Fibrillation/Atrial flutter
- Will have endocardial Left Atrial Appendage Closure (LAAC) with an Amplatzer Amulet or WATCHMAN FLX device
Exclusion criteria
- Inability or unwillingness of an individual to give written informed consent
- Patient not following with our practice after the procedure
- Complex anatomy for endocardial LAAC
- Thrombus in LAA
- Patients with pericardial effusion in pre-op TEE/CCTA
- Patients currently pregnant (Serum beta HCG completed when labs obtained for the procedure are completed)
Where
- Overland Park, Kansas
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Aug 28, 2025 · Source of record for eligibility and locations