LQT2

LQT2 is a genetic condition affecting the heart’s electrical system, specifically caused by mutations in the KCNH2 gene that encodes a potassium channel. This leads to delayed repolarization of the heart after each heartbeat, which can cause abnormal, rapid heart rhythms. These irregular rhythms may result in fainting, seizures, or even sudden death. LQT2 is one form of long QT syndrome, a disorder that affects how the heart recharges between beats. It can be managed with medications, lifestyle changes, and avoiding certain triggers like stress or specific medications.