Plain-English translation of NCT03912324 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
This study doesn't follow the usual testing phases — it may be an observational study or a different type of research.
This trial is testing whether using advanced imaging maps of your heart wall thickness (called CT myocardial thickness maps) or electrical maps during a catheter ablation procedure can improve outcomes for paroxysmal atrial fibrillation. Paroxysmal atrial fibrillation is a condition where your heart's upper chambers occasionally beat irregularly, which can cause symptoms like palpitations or shortness of breath. The procedure uses a special balloon cooled with cold gas (cryoballoon) to freeze the areas of your heart causing the irregular rhythm.
Current ablation procedures use a standard approach that doesn't personalize treatment to each patient's heart structure. This trial is testing whether using detailed heart imaging before and during the procedure can help doctors target treatment more precisely, potentially improving success rates and reducing the chance that the irregular rhythm comes back.
You will undergo a catheter ablation procedure where your doctor uses advanced imaging maps—either electrical maps or detailed heart thickness maps—to guide the treatment. After the procedure, you will have follow-up visits at 1 week, 3 months, 6 months, and then every 6 months for at least 2 years. During these visits, you will have heart rhythm checks using ECG and portable heart monitors (Holter monitors) to see whether your atrial fibrillation has returned and to monitor your overall heart health and safety.
AI-generated summary from trial data · Jun 11, 2026 · Not medical advice
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