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Related Experiment Videos

New technologies in interventional cardiology

A G Violaris1, P W Serruys

  • 1Catheterization Laboratory, Erasmus University Rotterdam, The Netherlands.

Current Opinion in Cardiology
|July 1, 1994
PubMed
Summary

New devices for percutaneous revascularization, including directional coronary atherectomy and coronary stents, are being compared to balloon angioplasty in randomized trials. Current evidence suggests these new devices may not offer significant advantages over traditional balloon angioplasty.

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Area of Science:

  • Interventional Cardiology
  • Medical Device Technology
  • Clinical Trials

Background:

  • Balloon angioplasty has limitations in percutaneous revascularization.
  • New devices aim to improve short- and long-term efficacy.
  • Preliminary data suggested potential benefits in specific anatomical situations.

Purpose of the Study:

  • To assess the efficacy and safety of new devices compared to balloon angioplasty.
  • To evaluate the role of new interventional cardiology devices in treating coronary artery disease.
  • To present findings from major randomized trials comparing new devices with balloon angioplasty.

Main Methods:

  • Randomized controlled trials comparing new devices (directional coronary atherectomy, coronary stents) with balloon angioplasty.

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  • Inclusion of total angioplasty patient populations and selected subgroups.
  • Analysis of key trials such as CAVEAT, CCAT, BENESTENT, and STRESS.

    • Main Results:

    • The Coronary Angioplasty Versus Excisional Atherectomy Trial (CAVEAT) and Canadian Coronary Atherectomy Trial (CCAT) found no advantage for directional coronary atherectomy over balloon angioplasty.
    • Upcoming trials (BENESTENT, STRESS) compare coronary stents with balloon angioplasty.
    • Ongoing studies continue to evaluate other new devices against balloon angioplasty.

    Conclusions:

    • Randomized trials are crucial for scientifically assessing the safety and efficacy of new interventional cardiology devices.
    • Current evidence does not consistently demonstrate the superiority of new devices over balloon angioplasty.
    • A new era of rigorous device evaluation is underway to establish clinical validity.