Post-coronary stent placement medication guidelines: Classification and analysis of essential medications

Post-coronary stent placement medications: Patients who have undergone coronary stent surgery are generally aware that doctors will prescribe medications such as aspirin, clopidogrel, and statins. Many patients wonder, "My blood vessels are open now, do I still need to take these medications? How long do I need to take them?"

Antibacterial drugs: Taking antiplatelet drugs is crucial for patients after coronary stent placement, and often two or more antiplatelet drugs are needed simultaneously, such as aspirin and clopidogrel, or aspirin and betamethasone. This is because after the stent is implanted in the coronary artery, it is exposed to the bloodstream. As a foreign body, the stent can potentially trigger various clotting factors in the blood, especially platelet aggregation, leading to thrombosis, stent site occlusion, and myocardial infarction. Therefore, dual antiplatelet therapy after coronary stent placement is an effective treatment to reduce platelet aggregation.

Duration of treatment: Dual antiplatelet therapy should last at least one year. One year after surgery, when the stent is completely covered by vascular endothelial cells and becomes part of the blood vessel, dual antiplatelet therapy can be switched to aspirin monotherapy.

Aspirin: Patients who have undergone coronary stent placement should take aspirin for life.

Aspirin not only reduces the probability of thrombosis after coronary stent placement, but more importantly, low-dose aspirin can improve the prognosis of patients with coronary heart disease. Therefore, unless contraindicated, doctors generally recommend that patients take low-dose aspirin for life.

Statins: Regardless of whether a coronary stent has been placed, statins are an important part of coronary heart disease treatment. Statins have multiple therapeutic effects on patients with coronary heart disease: First, statins are currently the most effective cholesterol-lowering drugs, and can also lower triglycerides to some extent, effectively delaying the onset and progression of coronary heart disease through lipid regulation; second, statins can prevent coronary atherosclerosis and plaque rupture, the latter being a direct cause of myocardial infarction; finally, statins also have anti-inflammatory and vascular endothelial protective effects. Therefore, statins are pleiotropic in the treatment of coronary heart disease and patients should take them long-term.

Nitrates: Nitrates, such as nitroglycerin and isosorbide mononitrate, can effectively dilate coronary arteries and improve myocardial ischemia symptoms in patients with coronary heart disease. If a patient has undergone coronary stent surgery and the narrowed blood vessel has been successfully opened, nitrates can be discontinued.

Antihypertensive drugs: Hypertension is one of the risk factors for coronary heart disease. Although coronary stents open the coronary arteries, the risk factors for coronary heart disease still need to be controlled long-term. Therefore, patients with hypertension after coronary stent surgery still need to take antihypertensive drugs long-term.

Myocardial nutrition drugs: Many patients take myocardial nutrition drugs or drugs that improve myocardial metabolism during coronary heart disease treatment, such as coenzyme Q10 and trimetazidine. Generally, after coronary stent surgery, these drugs are no longer necessary. However, if the patient experiences serious complications such as heart failure, some myocardial nutrition drugs can be continued as adjunctive therapy.

Dr. Zhou would like to emphasize that patients must not stop taking medication on their own, must have regular check-ups, and must follow the professional medication guidance given by their attending physician!