Andersen-Tawil syndrome (ATS): clinical features

Written and reviewed by Dr Ibrahim Imam, Consultant Neurologist. Last reviewed .

Andersen-Tawil syndrome (ATS): clinical features. It is a potassium channelopathy. It is usually hypokalaemic. Fully referenced neurology checklist.

Pathology

  • It is a potassium channelopathy
  • It is usually hypokalaemic
  • It could be normokalaemic or hyperkalaemic

Genetic types

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Neurological features: weakness

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Triggers of weakness

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Neurological features: others

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Skeletal features

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Cardiac features

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References

  1. Spillane J, Kullmann DM, Hanna MG. Genetic neurological channelopathies: molecular genetics and clinical phenotypes. JNNP 2016; 87:37-48. 
  2. Meola G, Hanna MG, Fontaine B. Diagnosis and new treatment in muscle channelopathies. JNNP 2009; 80:360-365.
  3. Rakowicz W, Hanna M. Muscle ion channel diseases. ACNR 2003; 3:14-16.
  4. Pérez-Riera AR, Barbosa-Barros R, Samesina N, et al. Andersen-Tawil syndrome: a comprehensive review. Cardiol Rev 2021; 29:165-177.
  5. Oz Tuncer G, Teber S, Kutluk MG, Albayrak P, Deda G. Andersen-Tawil syndrome with early onset myopathy: 2 cases. J Neuromuscul Dis 2017; 4:93-95. 
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