Objective:To probe the relation between hypokalemia of elderly and cerebralvascular disease(CVD) to study the ethiology of the CVD,to precure and declined the incidency of CVD.

• 为探讨老年人低血钾倾向与脑血管病的关系，研究脑血管病的病因为预防及降低脑血管疾病的发病，将139例病人分为脑血管病观察组和非脑管病对照组，分析两组病人血钾情况。