A coronary stent is a small mesh tube placed inside a narrowed heart artery during angioplasty. A catheter carries a balloon to the narrowing, the balloon opens the artery, and the stent is left behind to hold it open. The tube usually enters at the wrist, and sometimes at the groin. The stent treats that segment. It does not remove the cholesterol disease in the rest of the arteries, which is why the medicines and the follow-up are part of the treatment rather than an afterthought.
Two medicines that keep the stent clear
Platelets are the blood cells that start a clot. After a stent, most people take two medicines that make platelets less sticky. One is aspirin, often continued long term. The other is a second antiplatelet tablet, such as clopidogrel, ticagrelor, or prasugrel. Together they are called dual antiplatelet therapy. After a heart attack, the usual plan is at least a year if bleeding risk is not high, and sometimes longer. After a stent for stable symptoms, many people take the second tablet for 6 to 12 months. A shorter course is sometimes chosen when bleeding risk is high, and a longer one when the risk of a further heart attack is the greater concern. The American Heart Association is explicit that stopping the second tablet on your own raises the chance of a clot inside the stent, particularly in the first months.
- Take both tablets exactly as prescribed, including on the days you feel well
- Tell any dentist or surgeon about both medicines before a procedure
- Ask before using ibuprofen or another anti-inflammatory pain tablet, which can add to bleeding
- Report black stools, vomit that looks like coffee grounds, nosebleeds that will not stop, or a fall with a blow to the head
- Bruising more easily is common. Sudden swelling at the wrist or groin is not
Feeling well is not a signal to stop the second tablet. That decision belongs to the clinician who placed the stent.
The puncture site and the first days
Most people need a few days to a week before work and ordinary activity. Your own limit may be shorter or longer, depending on whether the procedure was planned or done during a heart attack, and on which artery was used for access. Avoid heavy lifting until the team confirms the puncture has healed. Increasing pain, a growing bruise, bleeding that soaks a dressing, or a numb, cold, or pale hand or leg on that side should be reported the same day. A small bruise is expected. A swelling that is expanding is not.
Symptoms that should not be explained away
Chest pain after a stent can mean the treated artery is narrowing again as tissue grows through the mesh, which is called restenosis, or that a clot has formed. New pressure, tightness, or breathlessness, pain at rest, or symptoms like the ones that led to the procedure need urgent care. Call your local emergency service for pain that is severe, spreading, or accompanied by sweating or faintness. A planned clinic visit is the right place for milder tightness that only appears on effort and settles quickly, but do not wait weeks to mention it.
The rest of the arteries still need treatment
A statin, or another cholesterol medicine, is usual after a stent, along with treatment of blood pressure, diabetes, and smoking. After a heart attack, a cholesterol blood test is often repeated about 4 to 8 weeks after the medicine is started or the dose is changed. Cardiac rehabilitation, including a home program when travel is difficult, is recommended after a heart attack and is useful after a planned stent as well. The stent keeps one segment open. Walking, the tablets, and the follow-up visit are what protect the arteries around it.
Your questions, answered
No. Stopping it early, especially in the first months, raises the risk of a clot inside the stent. The stop date should come from the team that prescribed it, after your bleeding risk and the reason for the stent are reviewed.
