January 26, 2021 — The U.S.
This channel includes news and new technology innovations for stents, also called vascular scaffolds. Stents are used to help prop open a vessel treated by balloon angioplasty because of the barotrauma caused by the extreme stretching of vessel walls. The stent enables to vessel to heal in an open position with collapsing. Drug eluting stents (DES) are coated in anti-proliferative drugs to precent scar tissue growth which can cause restenosis and occlude the vessel. DES require antiplatelet therapy because the drug carrier polymer on DES can cause thrombus inside the stent, even years after treatment, which is why bare metal stents are still used in some patients. This page includes news on coronary stents, carotid stents, peripheral stents, bioresorbable stents, and renal stents.
One-year results off the PIONEER III study comparing the safety and efficacy of the Supreme HT drug-eluting stent (DES), to the Xience or Promus Durable Polymer DES showed it was equivalent in clinical performance to the market-leading DES. The results were presented at the 2020 American Heart Association (AHA) Scientific Session.
Some of the device technologies discussed in the TCT 2020 late-breaking trial sessions. Top left, the Medtronic Resolute Onyx stent was the first stent to receive FDA clearance for short duration dual-antiplatelet therapy, which was a big topic and subject of several sessions. Lower left, the Keystone TriGuard 3 TAVR embolic protection device did not demonstrate superiority over TAVR without use of embolic protection. Top right, the Abbott MitraClip was the subject of two studies, including use to aid heart transplant patients. Bottom right, the Boston Scientific Acurate neo TAVR valve performed below the Sapien 3 and CoreValve Evolut.
Ori Ben-Yehuda, M.D., presenting the findings of the HOST-REDUCE-POLYTECH-ACS study at TCT 2020 that showed durable polymer drug-eluting stents (DES) performed better than the bioresorbable polymer DES that were supposed to replace them with the promise of being safer and lowering overall cardiac event rates.