A tiny balloon can clear a blocked heart artery and restore vital blood flow.

Health · Published 3 October 2026 Swipe more like this →

In short: When coronary arteries narrow due to plaque buildup, blood flow to the heart is restricted, causing chest pain or heart attacks. Angioplasty uses a catheter-guided balloon to stretch these vessels open, often followed by a permanent mesh stent to maintain the path and ensure the heart receives necessary oxygen.

Coronary angioplasty, often termed percutaneous coronary intervention (PCI), is a minimally invasive procedure designed to treat atherosclerosis—the accumulation of fats and cholesterol within artery walls. During the operation, a cardiologist guides a thin, flexible tube called a catheter into an artery, typically through the wrist or groin, using X-ray imaging for precision. Once the catheter reaches the blockage, a small balloon at its tip is inflated to compress the fatty deposits against the vessel wall, widening the artery to improve circulation.

Most modern procedures involve the placement of a stent, a small wire mesh tube that remains in the artery to provide structural support. Many stents are drug-eluting, meaning they slowly release medication to prevent re-stenosis, or the re-narrowing of the vessel. While angioplasty is highly effective for managing angina and treating emergency heart attacks, it is not universally applicable. In cases of severe or complex arterial disease, surgeons may instead recommend coronary artery bypass grafting (CABG), an open-heart surgery that creates a new path for blood to bypass the obstruction entirely.

The procedure is generally safe, but like any medical intervention, it carries risks, including bleeding, infection, or, in rare instances, stroke or heart attack. Patients are typically monitored closely and may require blood-thinning medications, such as aspirin or clopidogrel, to prevent clots from forming within the stent. Recovery times vary; while some patients return home the same day, those treated for acute heart attacks may require a longer hospital stay. Ultimately, the decision to perform angioplasty depends on the patient's overall health, the severity of their condition, and the specific anatomy of their coronary arteries.

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