Low blood pressure after cardiac stenting is caused by drugs, poor cardiac function, low basal blood pressure, etc. Specific treatments are different according to different conditions, as follows: 1. Drug-induced: patients can be diagnosed with coronary artery disease after cardiac stenting surgery, often assisted with oral β-blockers, ACEIs and other drugs to improve myocardial remodeling, reduce myocardial oxygen consumption, and improve the long-term prognosis, etc. However, these drugs can lead to low blood pressure compared with the preoperative period, and if the low is obvious or there is dizziness and other discomforts, the dose of the drug needs to be reduced by the doctor’s advice, and discontinued if necessary. 2. Poor cardiac function: patients diagnosed with coronary artery disease after cardiac stenting, myocardial injury, myocardial necrosis and other irreversible during the onset of the process can lead to poor cardiac function, blood pressure lower than before the onset of the disease, if the low is obvious or dizziness and other discomforts, you need to go to cardiology specialists, doctors according to the condition of the treatment. 3. Low basal blood pressure: For some patients with high age and thinness, who are unaware of the low blood pressure before the operation and find out that their blood pressure is low after the operation, there is no need for treatment if they have no discomfort, but if they have discomfort such as dizziness and panic attacks, they need to be treated by cardiology according to their condition. Patients with low blood pressure after cardiac stenting have different treatments according to different conditions, but low blood pressure combined with unstable hemodynamics should go to the hospital in a timely manner to avoid delaying their condition.