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Published on: 7/15/2026

Why might I still experience chest pain after having a stent placed?

Chest pain after a stent placement can occur for several reasons, even when the procedure was successful. Common causes include:

  • Narrowing in other coronary arteries that weren't stented
  • Restenosis (re-narrowing of the stented artery over time)
  • In-stent thrombosis (a clot forming within the stent)
  • Non-cardiac causes such as acid reflux, muscle strain, or anxiety
  • Microvascular disease affecting smaller heart vessels

Persistent or new chest pain after stenting should always be evaluated by a doctor promptly, as it may signal a serious issue requiring intervention.

If you're experiencing chest pain after a stent and aren't sure what's causing it, understanding your symptoms is the critical first step. A free, instant, online symptom check can help you clarify what may be happening, assess urgency, and guide your next steps—whether that means calling your cardiologist today or seeking emergency care. Don't wait on unexplained chest pain; get clarity now so you can act with confidence.

Reviewed for medical accuracy: 07/14/2026

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Explanation

A stent is placed to open a blocked part of a heart artery, but it doesn't fix all the problems that might be causing chest pain. One reason is that you could have narrowing in other nearby arteries that were not treated during the stenting. Sometimes, the artery where the stent was placed may become narrow again, a condition called in-stent restenosis. In other cases, the heart muscle might still be under stress because of factors such as spasms in the artery or other ongoing heart issues. It's also possible that the chest pain could be coming from the muscles or nerves around the heart that were affected during or after the procedure. These possibilities mean that even after the stent is in place, chest pain may still occur. It is important to share these symptoms with your doctor so that they can check for any changes and run further tests. To help prepare for your appointment and better understand your symptoms, you can use Ubie's free AI symptom checker to get personalized insights about what might be causing your discomfort and work with your healthcare provider on a plan to help keep your heart healthy and relieve your pain.

(References)

  • Versaci F, Gaspardone A, Tomai F, Proietti I, Crea F, Chiariello L, Gioffrè PA. Chest pain after coronary artery stent implantation. Am J Cardiol. 2002 Mar 1;89(5):500-4. doi: 10.1016/s0002-9149(01)02287-1. PMID: 11867031.

  • Jeremias A, Kutscher S, Haude M, Heinen D, Baumgart D, Herrmann J, Erbel R. Chest pain after coronary interventional procedures. Incidence and pathophysiology. Herz. 1999 Apr;24(2):126-31. doi: 10.1007/BF03043851. PMID: 10372298.

  • Izzo P, Macchi A, De Gennaro L, Gaglione A, Di Biase M, Brunetti ND. Recurrent angina after coronary angioplasty: mechanisms, diagnostic and therapeutic options. Eur Heart J Acute Cardiovasc Care. 2012 Jun;1(2):158-69. doi: 10.1177/2048872612449111. PMID: 24062904; PMCID: PMC3760523.

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