周期性麻痹有三种类型:(1)低血钾性周期性麻痹;(2)高血钾性周期性麻痹;(3)正常血钾性周期性麻痹。临床上最多见的是低血钾性周期性麻痹,后两个类型则罕见。它们在治疗、预防上均不相同。国内报告的周期性麻痹均系低血钾型,正常血钾型尚无报告。近来我科收治2例正常血钾性周期性麻痹患者,就其诊断、鉴别诊断、治疗和预防报告如下。 There are three types of periodic paralysis: (1) hypokalemic periodic paralysis; (2) hyperkalemic periodic paralysis; (3) normal potassium periodic paralysis. The most common clinical hypokalemic periodic paralysis, the latter two types are rare. They are different in treatment and prevention. Periodic paralysis of domestic reports are hypokalemia type, the normal type of potassium has not been reported. Recently, we treated 2 cases of patients with normal serum potassium periodic paralysis, its diagnosis, differential diagnosis, treatment and prevention report as follows.