AbstractInherited cardiac arrhythmias (ICA) have become one of the leading causes of sudden cardiac death in people under 40 years old. Variants in the ankyrin‐B or ankyrin‐2 genes will result in several cardiac arrhythmias ranging from sinus node dysfunction to life‐threatening arrhythmias. In this case study, we report a typical ankyrin‐2 variant, in which ventricular tachyarrhythmias might be reproduced through exercise or stress tests.