It is expected that patients with syndrome will often have some supraventricular tachycardia if their condition is acute. Another part of patients, such as atrial fibrillation, may also lead to the occurrence of ventricular tachycardia, so some drugs need to be used to stop the onset of tachycardia. Common drugs include propafenone and verapamil, as well as adenosine or ATP. In addition, the patient can also be instructed to perform the VASALVA action and emetic action, or press one side of the carotid sinus of the patient; To stimulate the vagus nerve, we should pay attention to pressing the jugular sinus, and we should not press both sides at the same time. In addition, if some elderly people have severe carotid stenosis, they cannot press.