Bradyarrhythmias are mainly characterized by symptoms of cardiac ischemia and insufficient blood supply to the brain. 1. Cardiac ischemia: Patients with bradyarrhythmia may suffer from cardiac ischemia if their heartbeat is lower than 50 beats per minute. Patients often show panic, chest tightness, angina and other related symptoms. If the patient is combined with organic heart disease, it may also cause acute heart failure, and the patient may suffer from dyspnea, fatigue, and profuse sweating. 2. Insufficient cerebral blood supply: patients with bradyarrhythmia may also have insufficient cerebral blood supply, and they may have symptoms such as dizziness, headache, headache, memory loss, blurred vision, etc., and in severe cases, they may even have hemiplegia. When bradyarrhythmia occurs, patients should first go to the hospital to find out the cause, and according to the results of the examination, carry out appropriate treatment.