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Andersen-Tawil Syndrome

A form of inherited Long QT Syndrome (or LQT7) that is characterized by a triad of Potassium-sensitive periodic Paralysis, Ventricular Ectopic Beats, and abnormal features such as short stature, low-set Ears, and Scoliosis. It results from Mutations of KCNJ2 Gene which encodes a channel protein (Inward Rectifier Potassium Channels) that regulates resting Membrane Potential.