Long QT Syndrome 2

**Semantic type:** Disease or Syndrome

**Definition:** An autosomal dominant condition caused by mutation(s) in the KCNH2 gene, encoding potassium voltage-gated channel subfamily H member 2. It is characterized by a prolonged QT interval that may result in torsade de pointes, ventricular fibrillation and/or sudden cardiac death.

**Synonyms:** - LQT2