Related Experiment Video

Updated: Aug 30, 2025

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

Published on: November 19, 2019

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Pathophysiology and Mechanisms of Saphenous Vein Graft Failure

Gustavo Antonio Guida1, Gianni D Angelini1

  • 1Department of Cardiac Surgery, Bristol Heart Institute, Bristol University, Bristol, United Kingdom.

Brazilian Journal of Cardiovascular Surgery
|September 2, 2022
PubMed

Insights

Saphenous vein graft failure in coronary artery bypass grafting is complex, involving thrombosis and hyperplasia. Improved surgical techniques and medications like aspirin and statins reduce failure rates, but research continues for better patient outcomes.

Area of Science:

  • Cardiovascular Surgery
  • Vascular Biology
  • Medical Research

Background:

  • Coronary artery bypass grafting (CABG) is a key therapy for advanced coronary artery disease.
  • The great saphenous vein is the primary conduit but faces short- and long-term failure.
  • Vein graft failure stems from acute thrombosis, intimal hyperplasia, and late atherosclerosis.

Purpose of the Study:

  • To review current findings on the pathophysiology of vein graft failure.
  • To explore the mechanisms leading to saphenous vein graft failure.
  • To discuss prevention and treatment strategies.

Main Methods:

  • A comprehensive literature search was conducted.
  • Databases searched include MEDLINE®, Web of Science™, and Cochrane Library.
  • Keywords used were "pathophysiology", "prevention", "treatment", and "vein graft failure".

Main Results:

  • Vein graft failure occurs in three phases: acute thrombosis, intimal hyperplasia, and accelerated atherosclerosis.
  • These processes are initiated by the vein's histological characteristics and surgical preparation.
  • Inflammatory and prothrombotic cascades lead to graft stenosis or occlusion.

Conclusions:

  • Vein graft failure pathophysiology is complex and multifactorial.
  • Surgical advancements and pharmaceutical prevention (aspirin, statins) have improved outcomes.
  • Further research holds potential for enhanced patient care and health service provision.
Abstract

Keywords:
AtherosclerosisCoronary Artery BypassCoronary Artery DiseaseHyperplasiaInhibitorsReview

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