Observational Study of Magnetocardiography in Atrial Fibrillation
This observational study is looking at whether a new heart imaging technique called magnetocardiography (MCG) can better predict outcomes for people with acquired Long QT syndrome compared to the standard electrocardiogram (ECG). MCG is a non-invasive, radiation-free test that measures the heart's electrical activity. The study also aims to compare how MCG and ECG measure the QT interval (a part of your heart's electrical cycle) and to check the safety of the CardiAQ MCG device. You may be able to join if you are 18 or older, have a confirmed diagnosis of atrial fibrillation, and are currently receiving dofetilide for rhythm control in the hospital. The study is trying to enroll 100 participants, but its current recruitment status is unclear.
- Study design
- This is an observational study with an unclear status, aiming to enroll 100 participants. It is not specified if it is randomized or blinded.
- What's involved
- Not specified in the trial record.
- Compensation
- Not stated in the trial record.
- Follow-up
- The primary endpoints are measured at Baseline, so no long-term follow-up after this initial measurement is specified.
AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.
MCG In Long QT Syndrome
At a glance
Conditions
NCT07270211
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.
Mayo Clinic in Rochester
Rochester, Minnesotastudy 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.
Study leadership
- Mohamad Alkhouli, M.D., M.B.A. · PRINCIPAL_INVESTIGATOR · Mayo Clinic
Who to contact
Opens a ready-to-send draft in your own email app — review before sending.
What this trial measures
- Number of successful dofetilide loading using MagnetocardiographyBaseline
Dofetilide loading is considered successful if the following conditions are met: 1. No excessive QTc prolongation QTc remains \<500 ms, and no \>15% increase from baseline. 2. No sustained VT or recurrent/symptomatic non-sustained VT (NSVT) suggestive of proarrhythmia. 3. No symptomatic bradycardia or hemodynamic instability 4. Stable renal function 5. No deterioration necessitating dose reduction or discontinuation. 6. Discharge on a stable dose
- Number of successful dofetilide loading using ElectrocardiogramBaseline
Dofetilide loading is considered successful if the following conditions are met: 1. No excessive QTc prolongation QTc remains \<500 ms, and no \>15% increase from baseline. 2. No sustained VT or recurrent/symptomatic non-sustained VT (NSVT) suggestive of proarrhythmia. 3. No symptomatic bradycardia or hemodynamic instability 4. Stable renal function 5. No deterioration necessitating dose reduction or discontinuation. 6. Discharge on a stable dose