What is hypertrophic cardiomyopathy? Hypertrophic cardiomyopathy is a heart disease characterized by hypertrophy of the heart muscle. It can be divided into obstructive and non-obstructive hypertrophic cardiomyopathy based on the presence or absence of obstruction of the left ventricular outflow tract. What can cause hypertrophic cardiomyopathy? There are two main factors. 1. heredity: if multiple people in a family develop the disease, it suggests a genetic link. 2. endocrine disorders: patients with pheochromocytoma and other endocrine disorders or humans with large amounts of intravenous norepinephrine can cause myocardial necrosis, and some people may be induced to develop hypertrophic cardiomyopathy. What are the symptoms of hypertrophic cardiomyopathy? The main symptoms are dyspnea, or in severe cases, telangiectatic breathing or paroxysmal nocturnal dyspnea, which makes it difficult for the patient to lie down and sleep. Some patients will have angina attacks, mostly after exertion. This type of angina is not only ineffective with nitroglycerin but can be aggravated. A small number of patients may experience dizziness and syncope. What tests should be done when you have hypertrophic cardiomyopathy? 1, X-ray examination: the heart size is normal or enlarged, the left ventricle hypertrophy is the main, pulmonary stasis is mostly light, common mitral valve calcification. 2.Electrocardiogram: Due to cardiac ischemia, myocardial repolarization abnormalities, ST-T changes are common, left ventricular hypertrophy and left bundle branch conduction block are also more common, Q waves may appear due to septal hypertrophy and myocardial fibrosis, and various types of arrhythmias are often present in this disease. On cardiac catheterization and cardiovascular angiography, there is a pressure step difference between the left ventricle and the left ventricular outflow tract, and the end-diastolic pressure of the left ventricle is increased, and the pressure step difference is positively correlated with the degree of left ventricular outflow tract obstruction. In cardiac angiography, when the septal muscle hypertrophy is obvious, the ventricular cavity can be seen to have narrow slit-like changes, which is meaningful for diagnosis. How to treat hypertrophic cardiomyopathy? Hypertrophic cardiomyopathy develops slowly and has a good prognosis, but it can lead to sudden death due to arrhythmia, so attention should be paid to avoid overwork and excessive mental stress. Beta-blockers can be used to reduce myocardial contractility, reduce left ventricular outflow tract obstruction, and improve left ventricular wall compliance and left ventricular filling. Severe patients can be treated surgically with hypertrophic muscle resection. In cases of severe mitral valve insufficiency, mitral valve replacement can be performed.