The causes of dizziness in heart disease patients include low blood pressure, occurrence of atrial fibrillation and even stroke and acute myocardial infarction. 1. Low blood pressure: the heart muscle function of patients with heart disease decreases, when colds and other conditions lead to increased anterior and posterior load, the heart muscle is not able to pump enough blood out of the heart, resulting in a decrease in the volume of blood in the circulation, blood pressure decreases, and insufficient supply of blood to the brain will have a stuffy feeling of dizziness. 2. Atrial fibrillation and even stroke: atrial fibrillation itself will cause the heart pumping volume to fall by about one-fourth to one-fifth, and atrial eddy current is very easy to cause embolism, when the embolism pumped from the heart to reach the brain, blocking the blood vessels of the brain to cause cardiogenic strokes, especially the blockage of supply to the cerebellum of the posterior cerebral arteries, then there will be a dizziness of the feeling of the sky and the earth. 3. Acute myocardial infarction: acute myocardial infarction occurs in the case of heart disease itself, may lead to acute heart failure, pulmonary stasis patients will have dizziness due to the lack of oxygen in the brain and symptoms. Heart disease dizziness should go to the hospital in time to diagnose and treat the cause, so as not to delay the condition.