Respiratory muscle paralysis in a patient with hypokalemia associated with Southeast Asian ovalocytosis: A case report

magnesium revealed rhythm with u waves. Abstract Hypokalemic periodic paralysis is a rare clinical syndrome characterized by low serum potassium and severe muscle weakness. The aetiology can be primary idiopathic or secondary to other disorders such as thyroid dysfunction and renal tubular acidosis. Hypokalemic periodic paralysis with distal renal tubular acidosis (RTAd) is seen in a cluster of the population in the North-central province of Sri Lanka particularly in association with Southeast Asian Ovalocytosis (SEAO). Here, we report the first case of severe respiratory muscle paralysis in a patient having RTAd with severe hypokalemia with associated SEAO from the North Central province, Sri Lanka.