Bioresorbable scaffold: The emerging reality and future directions

Yohei Sotomi, Yoshinobu Onuma, Carlos Collet, Erhan Tenekecioglu, Renu Virmani, Neal S. Kleiman, Patrick W. Serruys

Research output: Contribution to journalReview article

67 Scopus citations

Abstract

In the era of drug-eluting stents, large-scale randomized trials and all-comer registries have shown excellent clinical results. However, even the latest-generation drug-eluting stent has not managed to address all the limitations of permanent metallic coronary stents, such as the risks of target lesion revascularization, neoatherosclerosis, preclusion of late lumen enlargement, and the lack of reactive vasomotion. Furthermore, the risk of very late stent, although substantially reduced with newer-generation drug-eluting stent, still remains. These problems were anticipated to be solved with the advent of fully biodegradable devices. Fully bioresorbable coronary scaffolds have been designed to function transiently to prevent acute recoil, but have retained the capability to inhibit neointimal proliferation by eluting immunosuppressive drugs. Nevertheless, long-term follow-up data of the leading bioresorbable scaffold (Absorb) are becoming available and have raised a concern about the relatively higher incidence of scaffold thrombosis. To reduce the rate of clinical events, improvements in the device, as well as implantation procedure, are being evaluated. This review will focus on the current CE-mark approved bioresorbable scaffolds, their basic characteristics, and clinical results. In addition, we summarize the current limitations of bioresorbable scaffold and their possible solutions.

Original languageEnglish (US)
Pages (from-to)1341-1352
Number of pages12
JournalCirculation Research
Volume120
Issue number8
DOIs
StatePublished - Apr 14 2017

Keywords

  • bioresorbable scaffold
  • magnesium
  • polymers
  • thrombosis

ASJC Scopus subject areas

  • Physiology
  • Cardiology and Cardiovascular Medicine

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