If the patient is suffering from tachycardia, the patient should be told to regulate the tension. If the patient has no control, he can be given beta-blockers orally; if the patient is suffering from fever, the main treatment is anti-infection; if the patient is suffering from hyperthyroidism, he should be given appropriate medication for hyperthyroidism; anemia should be corrected. The most common cardiology is tachyarrhythmia, which causes an increase in heart rate. The treatment of this tachyarrhythmia includes the following two types: 1) drugs: give the corresponding drug treatment; 2) radiofrequency ablation: the technology is more mature and safe.