What is a bare stent?

There are two types of stents in the world of angioplasty: a version covered with a medicine and a bare metal stent, which is sometimes simply called a bare stent or an unhappy stent. Compared to the stent coated, which slowly releases medicine that helps reduce the possibility that the artery is filled with plaque, the bare stent simply does its work in maintaining the artery open after angioplasty. Bare stents were the first type of stent and were used around the world for many years.

stent plays an important role during and after angioplasty. During surgery, the heart surgeon uses a catheter to expand the small balloon in a blocked artery. This procedure helps to expand this artery and break the plaque that causes blocking. The surgeon then puts the stent to prevent the collapse and re -blocking the artery. The construction of the folding network allows the heart increase to put the stent in the artery where it is needed, and then open it to support this artery. The net stent corresponds to the surrounding tissue to be openFor the correct blood flow, and the stent remains permanently in place.

When the artery is treated, a new tissue grows around the bare stent to be part of the blood vessel. During this process of healing and before the stent is completely covered by a new heart tissue, flowing blood is exposed to the bare metal of the stent. Doctors usually give patients aspirin or other clogging drugs to prevent thrombosis in this therapeutic period.

With the advent of the coated stents, many studies have been carried out to test whether unloaded bare stents or drug coated stents help improve survival results until angioplasty treatment. Some scientists have found that in some cases there are scar tissue overgrowth around the bare tissue that represents future problems for patients. Other scientists have found that bare stents may be more useful in patients who are at a lower risk of clogging the artery again.

cardiolThe Ogs have developed a bare stent over the first decade when angioplasty was first performed, from the end of the 70s to the end of the 80's. During the first angioplastic procedures, surgeons found that some arteries collapsed after being unlocked by a small balloon. Surgeons also found that over time some unblocked arteries began to close without explanation. The first bare stent was used in France in France in 1986 to try to overcome these problems and to support the walls of arteries. Over the years, manufacturers around the world have improved the construction and flexibility of stent.