Heart mapping study probes hidden VT risk in genetic AF patients

This study aimed to understand why some people with genetic early-onset atrial fibrillation (AF) are at risk for a dangerous heart rhythm called ventricular tachycardia (VT). Researchers used special heart mapping during a standard AF ablation procedure to look for hidden VT triggers and scar tissue in the heart's lower chambers. The study included 32 adults with AF diagnosed before age 60 who were scheduled for ablation, comparing those with a specific genetic variant to those without. The goal was to gather knowledge to better predict and prevent VT in this group.