Andersen-Tawil syndrome history and symptoms

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Charmaine Patel, M.D. [2]; Raviteja Guddeti, M.B.B.S. [3]

Symptoms

Seizures - due to oxygen deprivation that occurs during arrhythmia.
Fainting - fainting or syncope is the most common symptom LQTS.
A prodrome may occur before losing consciousness, which may consist of lightheadedness, heart palpitations, blurred vision or weakness.
Sudden death - a fatal arrhythmia that is not quickly intervened on, may cause sudden death.