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Related Concept Videos

Hemodialysis I: Introduction01:25

Hemodialysis I: Introduction

Hemodialysis (HD) is a medical treatment that artificially removes waste products, excess fluids, and toxins from the blood when the kidneys are no longer able to perform these functions effectively. In this process, blood is filtered through a semipermeable membrane, allowing for the selective removal of waste while preserving necessary components like blood cells and proteins. Hemodialysis is typically performed in patients with end-stage renal disease (ESRD) or severe kidney...

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Related Experiment Video

Updated: Jun 16, 2026

Vein Interposition Model: A Suitable Model to Study Bypass Graft Patency
07:22

Vein Interposition Model: A Suitable Model to Study Bypass Graft Patency

Published on: January 15, 2017

Autologous vein stent-graft: feasibility study.

A Ferko1, J Páral, J Raupach

  • 1Department of Field Surgery, Military Medical Academy, Hradec Králové, Czech Republic. ferko@pmfhk.cz

Journal of Vascular and Interventional Radiology : JVIR
|February 29, 2000
PubMed
Summary
This summary is machine-generated.

Expandable stents healed into vein walls show promise as autologous vein stent-grafts for endoluminal grafting. These novel grafts demonstrated full endothelial coverage and withstood mechanical manipulation without damage.

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Last Updated: Jun 16, 2026

Vein Interposition Model: A Suitable Model to Study Bypass Graft Patency
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Synergizing Antegrade Endoscopic with Bridging Vein Harvesting for Improvement of Great Saphenous Vein Graft Quality from the Lower Leg
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Synergizing Antegrade Endoscopic with Bridging Vein Harvesting for Improvement of Great Saphenous Vein Graft Quality from the Lower Leg

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A Rabbit Venous Interposition Model Mimicking Revascularization Surgery using Vein Grafts to Assess Intimal Hyperplasia under Arterial Blood Pressure
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Published on: May 15, 2020

Area of Science:

  • Vascular surgery
  • Biomedical engineering
  • Regenerative medicine

Background:

  • Endoluminal grafting requires robust graft materials.
  • Autologous veins are a potential source for graft material but require structural support.
  • Expandable stents offer a scaffold for tissue integration.

Purpose of the Study:

  • To evaluate the feasibility of using expandable stents integrated into vein walls as autologous vein stent-grafts.
  • To assess the healing and mechanical properties of these novel stent-grafts for endoluminal applications.

Main Methods:

  • Expandable stents were implanted into canine jugular veins.
  • Vascular patency was monitored via ultrasonography.
  • Harvested vein segments underwent microscopic examination and mechanical stress testing.

Main Results:

  • Successful stent integration and endothelialization were observed in most cases.
  • A neointimal layer of 0.115 mm thickness fully covered the grafts.
  • The autologous vein stent-grafts resisted mechanical manipulation without intimal damage or loosening.

Conclusions:

  • Expandable stents healed into vein walls can serve as effective autologous vein stent-grafts.
  • These stent-grafts are suitable for endoluminal grafting procedures, tolerating transcatheter introduction.