Back to search results
NCT07647939

Exclusion of Left Atrial Appendage Thrombus in Emergency Department Patients With Atrial Fibrillation Undergoing CT to Assess for Pulmonary Embolus: A Feasibility Study

Not Yet Recruiting
NAAges 18+InterventionalDiagnostic
Northwell Health
~60 participants
Updated 2026-06-15 on ClinicalTrials.gov
What's tested:Delayed Un-gated CT Scan for Left Atrial Appendage ThrombusDelayed Gated CT Scan for Left Atrial Appendage Thrombus

At a glance

Recruiting sites
0 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Percentage of Indeterminate Left Atrial Appendage (LAA) Thrombus Scans
Measured over The overall assessment and statistical analysis of this primary outcome for feasibility determination will be conducted at the study completion, an average of one year.

Conditions

Atrial Fibrillation (AF)
Pulmonary Embolism (PE)
Left Atrial Appendage Thrombosis

Explore related trials

Atrial FibrillationLeft Atrial Appendage ThrombosisPulmonary Embolism

NCT07647939

Where you'd take part

This study runs at 1 site. They're the same protocol — you choose where, and that choice sets who your contact draft is addressed to.

  • North Shore University Hospital

    Manhasset, New Yorkstudy coordinator listed

Sites open and close at different times, so the status above is per site — it can differ from the study's overall status.

Who to contact

Tabetha Garver-Mosher
[email protected]
516-562-0100 · ext. 1514
Email the study team

Opens a ready-to-send draft in your own email app — review before sending.

Want this trial checked against your situation?

Add a private profile and we'll compare every criterion below against your situation — and tell you which ones are met, uncertain, or excluding.

Check eligibility for this trial ~2 min · HIPAA-protected · delete anytime
Eligibility criteria

Inclusion

Patients above 18 years of age years deemed candidates for CT angiography for pulmonary embolism by the primary team on clinical grounds and noted to be in atrial fibrillation at the time.
Room air oxygen saturation above 92%
Systolic blood pressure above 100 mm Hg
Respiratory rate less than 24 breaths/min

Exclusion

Inability to personally give informed consent
Pregnant or breastfeeding individuals
Stroke like symptoms
ECG criteria for ischemia or infarction
Heart rate \<40 or \> 120 bpm (inclusive) or 3rd degree heart block
Unable to lie flat for at least 10 minutes
Unable to follow simple commands
Northwell Health Employees.
Non-English-speaking patients

What this trial measures

  • Percentage of Indeterminate Left Atrial Appendage (LAA) Thrombus ScansThe overall assessment and statistical analysis of this primary outcome for feasibility determination will be conducted at the study completion, an average of one year.

    The primary endpoint of this study is to test the hypothesis that less than or equal to 20% of the repeat CT scan (described above) will be indeterminate for the presence or absence of left atrial appendage thrombus. Additionally, the proportion of indeterminate gated CT scans will be compared to the proportion of indeterminate ungated CT scans.