All types of heart disease are strongly associated with stroke. The risk of stroke is more than two times higher in people with heart disease than in people without heart disease, regardless of the level of blood pressure. How does heart disease cause strokes? Stroke is caused by heart disease in two ways: first, the heart itself or the heart valves, ventricular wall and ventricular cavity thrombus, into the blood circulation, blocking the blood vessels in the brain caused by brain embolism; second, due to severe coronary heart disease, cardiac insufficiency, etc., resulting in reduced cardiac output, cerebral perfusion, cerebral ischemia, cerebral thrombosis. 1. Atrial fibrillation is a very important risk factor for stroke. The risk of stroke in patients with atrial fibrillation is positively correlated with increasing age, with an incidence of 1.5% at the age of 50-59 years, increasing to 23.5% at the age of 80-89 years. Through physician guidance, some patients can apply warfarin to reduce the occurrence of cerebral thrombosis. 2.Coronary heart disease is also one of the causes of cerebral infarction. The main reason is that in patients with coronary heart disease, coronary artery sclerosis, narrowing of blood vessels, heart ischemia, reduced cardiac output and relative lack of blood in the brain cause cerebral hypoxia and hemodynamic changes, resulting in cerebral thrombosis. 3, in addition, rheumatic heart disease, subacute endocarditis, bacterial endocarditis, viral cardiomyopathy, heart failure and other heart diseases can increase the incidence of cerebrovascular disease. How can heart patients prevent the occurrence of stroke? The heart and brain is a whole, so it is important to treat cerebrovascular disease for the cause of the disease. adults over 40 years old should have regular medical checkups for early detection of heart disease; patients diagnosed with heart disease should actively seek treatment from a specialist, and it is advisable to adopt comprehensive measures such as sports, diet, drugs and etiology treatment. Some patients with atrial fibrillation can be treated with long-term application of anti-warfarin or anti-platelet drugs. Internal treatment is mainly to control the progression and symptoms, improve cardiac function and treat complications. The resolution of heart valve lesions also depends on surgical treatment.