Methods: A total of 30 patients with hypertrophic cardiomyopathy were assigned to Kelangning group (20 cases) or routine treatment group (10 cases).

• 方法：肥厚型心肌病30例，分为：治疗组（20例，用克朗宁治疗）和常规治疗组（10例，常规方法治疗），比较两组疗效。