For tachyarrhythmias, there are usually the following factors: 1. Consider neurological factors that lead to tachyarrhythmias, such as patients triggered by sympathetic overexcitation, such as patients with excessive tension, mental stress or heavy smoking, alcohol consumption, or heavy consumption of strong tea and strong coffee. 2. Cardiogenic diseases, such as coronary artery disease, myocarditis, pericarditis, rheumatic heart disease, hypertension, these conditions patients can also develop tachyarrhythmias. 3. 3. endocrine metabolic diseases, such as hyperthyroidism and hyperadrenocorticism, can also cause tachyarrhythmias. 4. severe infections, poisoning, and massive blood loss can trigger tachyarrhythmias. 5. primary tachyarrhythmias.