[Why so many stents?].
BETTER THAN ANGIOPLASTY: Prolonging inflation with a perfusion balloon decreases the risk of acute coronary occlusion after angioplasty. The longer the artery remains patent, the greater the chances of 0% residual stenosis. This is what the sent allows. Stent act on both mechanisms of stenosis: elastic recoil and fibrous remodeling of the arterial plaque. TARGETTED ACTION: Stents improve angioplasty prevention of acute stenosis. They have a real action on preventing degeneration of the saphenous graft and lead to a significant reduction in the rate of restenosis of the dilated site. There are however two specific complications: subacute occlusion and greater incidence of vascular events. Stents are particularly indicated for the treatment of restenosis and chronic occlusions. TWO IMPROVEMENTS: Risks related to the implantation of a foreign body in the vascular system have been reduced with the use of ticlopidine and high-pressure stent implantation. POSITIVE RESULTS: Stents have produced better angiographic results. They limit restenosis and the number of revascularizations required in treated patients. Several questions concerning indications remain open.
Guyon
P
P
Centre Chirurgical Marie Lannelongue, La Plessis-Robinson.
Boughezela
E
E
Elhadad
S
S
Larrazet
F
F
Bourachot
M L
ML
Dib
J C
JC
Lancelin
B
B
D015906:Angioplasty, Balloon, Coronary; D003327:Coronary Disease / Q000601:surgery*; D006801:Humans; D011183:Postoperative Complications / Q000517:prevention & control; D012008:Recurrence; D015607:Stents