Information About Andersen Syndrome

(also known as Andersen-Tawil Syndrome)

Andersen syndrome (also known as Andersen-Tawil syndrome) is an extremely rare, genetic condition that causes muscle paralysis, irregular heart rhythm and physical abnormalities such as short stature and a small lower jaw. The most common changes affecting the heart are ventricular arrhythmia, a disruption in the rhythm of the heart's lower chambers, and long QT syndrome. Long QT syndrome is a heart condition that causes the heart muscle to take longer than usual to recharge between beats. If untreated, the irregular heartbeats can lead to discomfort, fainting or cardiac arrest.

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