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Related Experiment Videos

Long-term peripheral stent evaluation using angioscopy.

P Bergeron1, P Rudondy, V Poyen

  • 1Fondation Hôpital Saint-Joseph, Marseille, France.

International Angiology : a Journal of the International Union of Angiology
|July 1, 1991
PubMed
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Peripheral artery stents showed complete endothelialization within 4 months in femoropopliteal arteries, though iliac artery coverage varied. This study evaluated Palmaz endoluminal stent incorporation into the arterial wall using angioscopy.

Area of Science:

  • Vascular Surgery
  • Interventional Cardiology
  • Biomedical Engineering

Background:

  • Peripheral artery disease (PAD) often requires interventions like stenting.
  • Palmaz endoluminal stents are used to treat arterial stenosis and occlusions.
  • Assessing stent incorporation and endothelialization is crucial for long-term patency.

Purpose of the Study:

  • To evaluate the incorporation of Palmaz endoluminal stents into the arterial wall.
  • To assess the degree and rate of endothelialization of stents in peripheral arteries.
  • To compare endothelialization patterns between iliac and femoropopliteal arteries.

Main Methods:

  • Angioscopy was performed on 15 Palmaz stents in 13 patients (iliac, femoral, popliteal arteries).
  • Stents were placed for occlusion or high-grade stenosis, some preceded by laser treatment.

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  • Postoperative treatment included antiplatelet therapy (Ticlopidine); follow-up ranged from 2 to 12 months.

    • Main Results:

    • Angioscopy was successful in all cases, with angiography performed concurrently.
    • Complete endothelialization was observed in all stents, appearing as a smooth, whitish layer.
    • Endothelialization was fastest in femoropopliteal arteries (complete within 4 months), while the medial iliac artery showed slower coverage, sometimes remaining partially exposed at 12 months.

    Conclusions:

    • Palmaz endoluminal stents demonstrate successful endothelialization in peripheral arteries.
    • The rate of endothelialization varies by arterial location, with femoropopliteal segments healing faster than the iliac artery.
    • Angioscopy is an effective tool for evaluating stent incorporation and endothelialization in vivo.