Andersen-Tawil syndrome laboratory findings

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Vamsikrishna Gunnam M.B.B.S [2]

Overview

Laboratory findings consistent with the diagnosis of Andersen-Tawil syndrome (ATS) include serum potassium levels. Some patients with Andersen-Tawil syndrome (ATS) may have elevated/reduced concentration of serum potassium levels, which is usually suggestive of Andersen-Tawil syndrome (ATS).

There are no diagnostic laboratory findings associated with Andersen-Tawil syndrome (ATS).

An elevated/reduced concentration of serum potassium levels is consistent in Andersen-Tawil syndrome (ATS).^[1]
Patients with Andersen-Tawil syndrome (ATS) may experience weakness when the potassium levels in the blood drops to low which suggests the name hypokalemic periodic paralysis.^[2]^[3]
Weakness may also occurs in patients with Andersen-Tawil syndrome (ATS) when the potassium levels are even normal but the weakness may be triggered by exercise, cold, or even sometimes menstruation.
Thyroid hormones such as thyroid-stimulating hormone (TSH), T4, and T3 levels should be checked due to thyrotoxic periodic paralysis can also present with muscle weakness and paralysis.^[4]^[5]^[6]

↑ Sansone V, Tawil R (2007). "Management and treatment of Andersen-Tawil syndrome (ATS)". Neurotherapeutics. 4 (2): 233–7. doi:10.1016/j.nurt.2007.01.005. PMID 17395133.
↑ Nguyen, Hoai-Linh; Pieper, Gerard H.; Wilders, Ronald (2013). "Andersen–Tawil syndrome: Clinical and molecular aspects". International Journal of Cardiology. 170 (1): 1–16. doi:10.1016/j.ijcard.2013.10.010. ISSN 0167-5273.
↑ Nguyen HL, Pieper GH, Wilders R (2013). "Andersen-Tawil syndrome: clinical and molecular aspects". Int J Cardiol. 170 (1): 1–16. doi:10.1016/j.ijcard.2013.10.010. PMID 24383070.
↑ Ryan DP, da Silva MR, Soong TW, Fontaine B, Donaldson MR, Kung AW; et al. (2010). "Mutations in potassium channel Kir2.6 cause susceptibility to thyrotoxic hypokalemic periodic paralysis". Cell. 140 (1): 88–98. doi:10.1016/j.cell.2009.12.024. PMC 2885139. PMID 20074522.
↑ Munir I, Mehmood T, Islam K, Soni L, McFarlane SI (2019). "Thyrotoxic Periodic Paralysis with Sensory Deficits in Young African American Male: A Case Report and Literature Review". Am J Med Case Rep. 7 (7): 138–142. doi:10.12691/ajmcr-7-7-5. PMC 6688769 Check |pmc= value (help). PMID 31404457.
↑ Rajpal A, Sood A (2019). "HYPOKALEMIC PERIODIC PARALYSIS IN A PATIENT WITH EUTHYROID GRAVES DISEASE AND CELIAC DISEASE". AACE Clin Case Rep. 5 (1): e73–e76. doi:10.4158/ACCR-2018-0206. PMC 6876974 Check |pmc= value (help). PMID 31967006.