Whether or not it is dangerous to put a pacemaker in your 80s is related to factors such as your physical condition and the severity of your condition, and cannot be generalized. A pacemaker is a surgical treatment for a variety of cardiac arrhythmias, such as sinus node dysfunction, severe conduction block, and cardiac arrest. If conservative treatment is not effective, a pacemaker is a better option. In the 80s, if the health condition is relatively good and can tolerate surgery, or if the disease is serious and conservative treatment is ineffective, putting a pacemaker is a relatively better way to treat the disease. Since advanced age itself is a high-risk factor for surgery, if there are no underlying diseases such as high blood pressure or diabetes, the surgery has a higher success rate and better outcomes. If you have an underlying disease, the risk of surgery may increase accordingly, and your doctor will need to evaluate the pros and cons of surgery in the context of your specific situation.