One of the newest innovations in coronary stents is the development of a dissolving stent. Coronary thrombosis can be a complication associated with drug-eluting stents. It is treated with the use of balloon angioplasty and stents, if necessary. Everolimus is used in drug-eluting coronary stents as an immunosuppressant to prevent restenosis. Livgren underwent surgery and received two stents in his carotid arteries. Paclitaxel drug-eluting stents for femoropopliteal artery placement are also available. These "cath labs" are often equipped with cabinets of catheters, stents, balloons, etc. Examples of this development are vascular stents and surgical sutures. Shape memory alloys are used for applications such as pipes, fasteners and vascular stents. The first few drug-eluting stents to be licensed used durable coatings. Cardiac surgery (implants, stents or full heart transplant) may be advised. The first successful trials were of sirolimus-eluting stents. It found usefulness of cangrelor in patients getting cardiac stents. A meta-analysis concluded the mortality risk associated with drug-eluting and bare-metal stents is similar. Following that incident, he had heart surgery to put in three stents in his arteries.