In the US, nearly two million stents are implanted every year, and they can be life-saving during a heart attack. But they may not always be the best treatment method for coronary artery disease.

There are two types of stents, metallic and dissolving. Which is better? Stents are normally made of metal, but dissolving heart stents are also made. Now, dissolving heart stents have been withdrawn.

A cardiac stent is used to treat narrowed or blocked coronary arteries. It can also be used to improve blood flow immediately following a heart attack. Speaking on the occasion, the prime minister ...