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Related Experiment Video

Updated: May 17, 2026

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

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

Published on: January 15, 2017

External support in preventing vein graft failure.

Jia Hu¹, Song Wan

¹Division of Cardiothoracic Surgery, Department of Surgery, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, People's Republic of China.

Asian Cardiovascular & Thoracic Annals

|October 23, 2012

Summary

External support strategies show promise in preventing saphenous vein graft failure after coronary surgery. This review explores mechanisms and biomaterials for improving vein graft patency and long-term success.

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Procedure for Human Saphenous Veins Ex Vivo Perfusion and External Reinforcement

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Last Updated: May 17, 2026

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

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

Published on: January 15, 2017

Synergizing Antegrade Endoscopic with Bridging Vein Harvesting for Improvement of Great Saphenous Vein Graft Quality from the Lower Leg

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Published on: November 19, 2019

Procedure for Human Saphenous Veins Ex Vivo Perfusion and External Reinforcement

Procedure for Human Saphenous Veins Ex Vivo Perfusion and External Reinforcement

Published on: October 1, 2014

Area of Science:

Cardiovascular Surgery
Biomedical Engineering
Vascular Biology

Background:

Saphenous vein grafts are crucial for myocardial revascularization but suffer from long-term failure.
Neointimal hyperplasia and atherosclerosis significantly limit vein graft patency.
Current therapeutic interventions have shown limited sustained clinical benefits.

Purpose of the Study:

To review mechanisms of external support for preventing vein graft failure.
To highlight biomaterials and delivery techniques for external support strategies.
To address challenges in the clinical translation of vein graft external support.

Main Methods:

Literature review of studies on vein graft failure.
Analysis of biomechanical modulation by external support.
Evaluation of biomaterials and delivery methods for external support.

Main Results:

External support modulates venous wall biomechanics, potentially preventing graft failure.
Various biomaterials and techniques have been explored for external support application.
Technique limitations have historically challenged clinical translation.

Conclusions:

External support presents a promising strategy to improve vein graft survival.
Further research into optimized biomaterials and delivery systems is warranted.
Overcoming technical challenges is key for successful clinical implementation.