Evolution Of Optimal Below-Knee Stents Revealed

Choosing the type of endoluminal treatment for infrapopliteal artery lesions can be controversial. Bioabsorbable stents are a new means
to attempt to prevent vessel recoil and eliminate the presence of permanent metal implant.


It is thought the absence of a metallic
implant may permit positive remodeling with lumen enlargement to compensate for the development of new lesions.


Koen Deloose, M.D., Vascular Surgeon at AZ Sint-Blasius Hospital, Dendermonde, Belgium, presented his study, which randomized 117
patients with chronic limb ischemia and with 149 lesions to implantation of an absorbable metal stent, or AMS (60 patients, 74 lesions)
versus a stand-alone percutaneous transluminal angioplasty, or PTA (57 patients, 75 lesions).


The 30-day complication rate was 5.3%
(3/57) and 5.0 % (3/60) in patients randomized for PTA alone and PTA followed by AMS implantation, respectively.


On an intentionto-treat basis, the 6-month angiographic patency rate at for the lesions treated with AMS (31.8 %) was significantly inferior (p=0.013) to those treated with PTA (58.0 %).


Although the present study indicates that the AMS technology can be safely applied, it did
not demonstrate efficacy in long-term patency over standard PTA in the infrapopliteal vessels.


Initial studies show AMS to be a
safe technique, bet design modifications are needed and further studies should be performed before being widely adopted..but the
future looks positive.


VEITH SYMPOSIUM - New York, November 19th to 23rd


Now in its fourth decade, VEITH SYMPOSIUM provides vascular surgeons, interventional radiologists, interventional cardiologists and other vascular specialists with a unique and exciting format to learn the most current information about what is new and important in the treatment of vascular disease. The 5-day event features rapid-fire presentations from world renowned vascular specialists with emphasis on the latest advances, changing concepts in diagnosis and management, pressing controversies and new techniques.


VEITHsymposium is sponsored by Cleveland Clinic, Cleveland, OH.


veithsymposium


Source

Pauline T. Mayer

ptmhcm