Assessing long-term outcomes of LAA contrast flow after heart procedure
Official title: Long-Term Outcomes of Left Atrial Appendage Contrast Flow in CT Scans After Endocardial LAA Closure: The CF-CT Registry
Run by Kansas City Heart Rhythm Research Foundation · NCT06075628 · Data updated 2026-11-12
This study looks at how well heart devices used to close the left atrial appendage work over time in patients, especially those at high risk, to see if they prevent leaks, blood clots, and strokes.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 100 (estimated) |
| Sponsor | Kansas City Heart Rhythm Research Foundation Academic / other |
| Locations | 1 site (Overland Park, Kansas) |
| Status | Recruiting |
| Started | July 24, 2023 |
| Main results expected | December 2025 |
| Study ends | December 2025 |
| Registry record updated | August 28, 2025 |
| Trial ID | NCT06075628 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates for this study are adults aged 18 and older who have undergone LAA closure with either the Watchman/Watchman FLX or Amplatzer Amulet devices between January 2019 and June 2022.
✕Probably not a fit
Patients who have not undergone LAA closure with the specified devices or those under 18 years of age may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This observational study aims to evaluate the long-term outcomes of left atrial appendage (LAA) contrast flow in patients who have undergone LAA closure using FDA-approved devices. It will involve a retrospective review of approximately 100 patient charts to investigate the incidence of peri-device leaks, device-related thrombosis, and the occurrence of strokes or transient ischemic attacks. The study seeks to understand the correlation between LAA contrast flow and the effectiveness of the closure devices over time, particularly in high-risk patients transitioning from anticoagulation to antiplatelet therapy.
Why it matters
Potential benefit: If successful, this study could provide insights into the long-term safety and effectiveness of LAA closure devices, potentially improving patient outcomes in atrial fibrillation management.
How similar studies have gone: This study is novel as there are currently no existing studies or registries focusing on the long-term follow-up of left atrial appendage contrast flow.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Subjects must be at least 18 years of age. * Subjects underwent LAA closure with Watchman/Watchman FLX or Amplatzer Amulet at our institution from January 2019 till June 2022 Exclusion Criteria: * No definite exclusion criteria are defined for the study as all patients with Watchman-FLX or Amplatzer Amulet will be included in the study.
Where it's running
-
Kansas City Heart Rhythm Institute
Overland Park, Kansas, United States Recruiting
Study contacts
- Principal investigator: Dhanunjaya Lakkireddy, MD — Kansas City Heart Rhythm Institute
- Study coordinator: Donita Atkins
- Email: datkins@kchrf.com
- Phone: 816-651-1969
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.