MCG In Long QT Syndrome

The primary objective of this observational study is to evaluate whether magnetocardiography (MCG) findings more accurately predict clinical outcomes in patients with acquired Long QT syndrome compared to ECG. The secondary objective is to assess differences in QT interval length between MCG and ECG. The primary safety objective is to characterize the safety profile of the CardiAQ MCG device.

NCT Number	NCT07270211
Lead Sponsor	Mayo Clinic
Conditions	Atrial Fibrillation
Enrollment	100 participants
Start Date	2026-09
Primary Completion	2027-12 (estimated)
Study Completion	2027-12 (estimated)
Updated on ClinicalTrials.gov	2026-07-29