Percutaneous coronary intervention with bare metal stent vs. drug-eluting stent in hemodialysis patients

Hideki Ishii1, Takanobu Toriyama, Toru Aoyama

  • 1Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan. hkishii@med.nagoya-u.ac.jp

Insights

Drug-eluting stents (DES) show better long-term outcomes than bare metal stents (BMS) for patients on hemodialysis (HD) undergoing percutaneous coronary intervention (PCI). DES reduces major adverse cardiac events and target lesion revascularization beyond one year.

Area of Science:

  • Cardiovascular Medicine
  • Interventional Cardiology
  • Nephrology

Background:

  • Coronary artery disease patients on hemodialysis (HD) face high restenosis rates after drug-eluting stent (DES) percutaneous coronary intervention (PCI).
  • Limited data exists on the long-term outcomes of DES in HD patients.

Purpose of the Study:

  • To compare the long-term clinical outcomes of DES versus bare metal stents (BMS) in HD patients undergoing PCI.
  • To evaluate the effectiveness of DES in reducing restenosis and major adverse cardiac events in this high-risk population.

Main Methods:

  • Retrospective comparison of 204 patients receiving BMS and 301 patients receiving DES for PCI.
  • Kaplan-Meier analysis to assess long-term clinical outcomes, including target lesion revascularization (TLR) and major adverse cardiac events (MACE).
  • Follow-up duration extended to 6 years for event rate analysis.

Main Results:

  • DES group showed significantly lower 6-year MACE rates (42.5%) compared to the BMS group (58.0%, P=0.036).
  • No significant difference in TLR at 1 year (17.8% vs. 21.3%, P=0.32).
  • Beyond 1 year, DES significantly reduced TLR rates compared to BMS (16.4% vs. 30.9%, P=0.019).

Conclusions:

  • DES implantation may be more effective than BMS for preventing medium to long-term TLR in HD patients.
  • While short-term restenosis after DES in HD patients is common, long-term benefits in reducing revascularization are evident.
Abstract

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