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Observational Study on Atrial Fibrillation Mapping

This observational study, called COMparison of Physiological Algorithms for Real-time Evaluation of Atrial Fibrillation, is looking at ways to better understand and treat atrial fibrillation (AFib), a type of abnormal heart rhythm. Researchers are comparing different methods for mapping the heart's structure and electrical activity during AFib. The goal is to identify areas that are important for AFib, which could lead to more effective treatments. You might be able to participate if you are between 21 and 80 years old and are having a procedure called an electrophysiology study for AFib ablation. The study aims to enroll 1000 patients, and its success will be measured by how accurately these mapping methods can diagnose AFib mechanisms.

Study design
This is an observational cohort study involving 1000 participants. It compares different mapping approaches for atrial fibrillation.
What's involved
Not specified in the trial record.
Compensation
Not stated in the trial record.
Follow-up
Diagnostic accuracy will be measured at the time of the procedure.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT02997254

COMparison of Physiological Algorithms for Real-time Evaluation of Atrial Fibrillation

Recruiting
Not specifiedAges 21–90Observational
Stanford University
~1,000 participants
Updated 2025-11-14 on ClinicalTrials.gov

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Diagnostic Accuracy
Measured over At the time of procedure
+1 more outcome measured

Conditions

Atrial Fibrillation
Abnormal Heart Rhythms

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Atrial Fibrillation

NCT02997254

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.

  • Stanford University

    Stanford, Californiastudy coordinator listed

    Recruiting

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

Study leadership

  • Sanjiv M Narayan, MD, PhD · PRINCIPAL_INVESTIGATOR · Stanford University

Who to contact

Sanjiv M Narayan, MD, PhD
[email protected]
(650) 723-9363
Email the study team

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

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Eligibility criteria

Inclusion

aged 21-80 yrs who underwent electrophysiology study for ablation of Atrial Fibrillation

Exclusion

Poor data quality of recordings of AF

What this trial measures

  • Diagnostic AccuracyAt the time of procedure

    Comparing electrogram analysis systems to diagnose sites of importance in Atrial Fibrillation

  • Diagnostic AccuracyAt time of procedure.

    Comparing algorithms to segment atrial structures from computed tomography or Magnetic resonance images.