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    Thyrotoxic hypokalemic periodic paralysis is a rare complication of hyperthyroidism. It has been most often reported in Asian subjects while it has been little described in the black population. Its mechanism has been little elucidated, but it would be caused by hyperactivity of the Na+/K+pump. We here report two cases of thyrotoxic hypokalemic periodic paralysis in black African subjects. The clinical manifestation was identical in both patients: proximal muscle paralysis of the lower limbs. Paralysis was associated with severe hypokalemia and occurred in female patients treated for Graves' disease without any other associated disease. Outcome was immediately favorable under potassium supplementation. Treatment of hyperthyroidism prevented recurrences. This study highlights the importance of suspecting the diagnosis of thyrotoxic hypokalemic periodic paralysis despite its rarity in the black African population. Copyright: Maïmouna Sow et al.

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    Maïmouna Sow, Nafissatou Diagne, Boundia Djiba, Baïdy Sy Kane, Mouhamed Dieng, Awa Cheikh Ndao, Atoumane Faye, Abdoulaye Pouye. Thyrotoxic hypokalemic periodic paralysis in two African black women]. The Pan African medical journal. 2020 Nov 02;37:207

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    PMID: 33505575

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