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[Vascular replacement--a critical evaluation of status]
M Kadletz1, A Rokitansky, E Wolner
1Aus der II. Chirurgischen Universitätsklinik Wien.
Zentralblatt Fur Chirurgie
|January 1, 1989
Summary
Vascular replacement surgery has evolved, with autologous veins being most effective. However, synthetic grafts are needed for some patients, and improving their long-term patency through endothelialization is key for bypass success.
Area of Science:
- Vascular Surgery
- Biomaterials Science
Background:
- Vessel replacement research has focused on organic and synthetic options for 40 years.
- Autologous vein grafts are the most successful but not suitable for all patients.
- Synthetic grafts are necessary for a subset of patients requiring vascular bypass.
Purpose of the Study:
- To review the historical development and current challenges in vascular replacement surgery.
- To identify strategies for improving the long-term patency of synthetic vascular prostheses.
Main Methods:
- Review of historical research in organic and synthetic vessel replacement.
- Analysis of factors contributing to synthetic graft failure, specifically long-term closure.
- Exploration of endothelialization as a potential solution for improving graft success.
Main Results:
- Autologous vein grafts are preferred but have limitations in approximately 20% of cases.
- Synthetic grafts exhibit a high rate of long-term closure.
- The biocompatibility and low thrombogenicity of synthetic surfaces are noted.
Conclusions:
- Endothelialization of synthetic prostheses presents a promising avenue to enhance success rates in bypass vascular surgery.
- Further research into endothelialization techniques is warranted to improve patient outcomes.