A case series of hypokalemic thyrotoxic periodic paralysis presenting in the North Eastern region of India

Hypokalemic periodic paralysis (HPP) with thyrotoxicosis is a rare but treatable cause of sudden onset paralysis. Its occurrence is more common in males particularly of Asian descent. Presentation is like those seen in HPP with an additional feature of a hyperthyroid state, where the symptoms of hyperthyroidism may often be mild and thus may be missed. We are reporting a series of 4 cases of HPP in two males and two females from the North eastern region of India who presented with sudden onset weakness of limbs. Although hyperthyroidism is not common in this region of the country, all of them had elevated thyroid hormone levels on further evaluation. This case series is to highlight the significance of thyroid function test in cases presenting with a history of periodic paralysis.