KCNJ2 and Cardiodysrhythmic potassium-sensitive periodic paralysis: Although we could not find any deleterious KCNJ2 mutations in our TPP cases through direct sequencing, earlier studies showed that Kir2.1 mutations lead to Andersen-Tawil syndrome (ATS) manifesting as periodic paralysis, ventricular ectopy, and dysmorphic features [24].