Firstly, arrhythmias, whether supraventricular or ventricular, are harmful to the human body. However, ventricular arrhythmias tend to be more damaging. Supraventricular arrhythmias, including supraventricular tachycardia and atrial tachycardia, generally have a minimal impact on hemodynamics. However, they may still cause symptoms in patients such as palpitations, chest tightness, or even fatigue, a series of discomforting symptoms, but generally do not pose a life-threatening risk. However, ventricular arrhythmias are different, as they can cause disturbances in the body's hemodynamics, leading to ischemia and failure of various organs. Therefore, the harm they cause is significant, and they may even lead to sudden cardiac death. Hence, aggressive treatment and management of ventricular arrhythmias are necessary.