A meta-analysis of randomized controlled trials to compare long-term clinical outcomes of bioabsorbable polymer and durable polymer drug-eluting stents

Naim Mridha, Deloshaan Subhaharan, Selvanayagam Niranjan, Mohammed K. Rashid, Peter Psaltis, Kuljit Singh

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


Aims The durable polymer (DP) of a drug-eluting stent (DES) serves no function once drug elution is complete. To ascertain the benefits of bioabsorbable polymer (BP) over DP-DESs requires a longer follow-up period, to overcome the time taken for polymer absorption. The primary aim of this meta-analysis was to compare the safety and efficacy of BP-DES with the DP-DES over mid (2 years) to long-term (3-5 years) follow-up. Methods and results A thorough computer-based search was performed using Ovid MEDLINE, EMBASE, Google Scholar, and PubMed databases. We only included randomized controlled studies comparing clinical outcomes between BP-DESs and DP-DESs. Only studies where data were available for a minimum of 2 years were included. A separate analysis of 2-year outcomes and 3- to 5-year outcomes were conducted. Data from 6 and 8 studies were included in 3- to 5-year and 2-year follow-up, respectively. There were no differences between stent groups in cardiac mortality, stent thrombosis (ST), target lesion revascularization, target vessel failure, and reinfarction rates for either 2-year or 3- to 5-year follow-up. Subgroup analysis according to strut thickness (<100 μm, >100 μm) of BP-DES demonstrated similar results. The analyses of ST and very late ST favoured BP-DESs but did not reach statistically significant level. Conclusion There were no differences in clinical outcomes between BP-DESs and DP-DESs over mid- and long-term follow-up.

Original languageEnglish
Pages (from-to)105-113
Number of pages9
JournalEuropean Heart Journal - Quality of Care and Clinical Outcomes
Issue number2
Publication statusPublished or Issued - Apr 2019


  • Bioabsorbable polymer
  • Drug-eluting stent
  • Durable polymer

ASJC Scopus subject areas

  • Health Policy
  • Cardiology and Cardiovascular Medicine

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