This study intends to include hypertrophic cardiomyopathy patients over 18 years old who underwent cardiac surgery in our hospital. Patients were divided into medication group and control group according to the use of gastrodin during operation. The patients ' myocardial tissue samples were collected, the postoperative prognosis data were observed and recorded, and the data were analyzed. The degree of myocardial tissue cell damage and postoperative clinical outcomes were compared between the two groups.

Inclusion Criteria:

• Patients with hypertrophic cardiomyopathy aged≥18 years, regardless of gender;
• Patients undergoing elective hypertrophic cardiomyopathy outflow tract surgery;
• Signed informed consent, good compliance.

Exclusion Criteria:

• suffering from more serious genetic diseases (such as immunodeficiency, thalassemia, etc.);
• moderate to severe malnutrition, moderate to severe anemia;
• persistent infection;
• severe preoperative underlying diseases (such as severe liver and kidney dysfunction)

The patients included in this study were preoperatively diagnosed as hypertrophic cardiomyopathy.

Diagnosis of hypertrophic cardiomyopathy: according to the medical history and physical examination, echocardiography showed diastolic ventricular septal thickness of 15 mm.