What is a bare metal stent?
6 Surgically, it is inserted into peripheral or coronary arteries to expand its diameter and improve blood flow when cardiovascular disease caused the blood vessel to narrow. They are made of different metals and are designed to improve the procedure of angioplastics of balloon, which has a higher level of complications. Patients with implantation of bare metal stent can be resumed after implantation - renewed narrowing of the blood vessel. Blood clots or thrombosis and the formation of lesions are two other complications that may occur. These materials include stainless steel, nitinol and cobalt chrome. The stents range from about 2 mm to 4 mm in diameter and are usually between 8 mm and 38 mm long, depending on the length of arterial locking. Walls stent, which exerts expansion pressure on the ambient artery, is produced with different strut configurations including coil, serpentine and wavy patterns. The thinnest struts have a lower speed of restenosis and are sometimes lined with heparin, carbon or platinum to reduce the risk of trombosa.
The procedure for implanting a bare metal stent involves the use of a guide wire and the main catheter together with a catheter with a balloon with a stent connected. The guide catheter is inserted into the femoral artery and placed at the arterial blocking point. The guide wire is then inserted into the catheter and the balloon spike catheter with its stent is fed through it to block it. The balloon is inflated to expand the blood vessel and then remove it, so the bare metal stent pushes the arteries on the walls. During recovery, tissue on the wall of the grade artery to the laundered wall wall.
The patient may be administered to the patient's brachytherapy - a dose of radiation supplied through a catheter that reduces the amplification and scarring of the artery wall. Anticoagulant drugs are also administered for this purpose. Experiments with anticoagulants have led to the development of stents elutrating drugs. Designed similarly to a bare metal stent, slowly releasedThey do chemicals that inhibit cellular growth and reduce restenosis. It has been shown to statistically reduce the degree of serious complications such as myocardial infarction.