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Aneurysm formation in modified human umbilical vein grafts
R Strobel1, A H Boontje, J J Van Den Dungen
1Department of Surgery, University Hospital Groningen, The Netherlands.
Objectives:
Aneurysm formation in Human Umbilical Vein Grafts has been reported to be as high as 65% after 5 years. One of the causes might be the structure of the Biograft-wall and in 1985 a new method of processing the graft was begun. In Groningen this new improved Biograft has been used since late 1986.
Design:
Duplex scanning was used to examine the frequency of aneurysm formation in the new improved Biograft.
Materials:
Sixty-nine patent Biografts have been examined in a period up to 6 years after implantation.
Main Results:
Aneurysms were found in only 17% of grafts although the frequency increased with time. Dilatation was common but may be due to a more elastic graft.
Conclusion:
These findings justify the continued use of the new Biograft as a substitute for arterial femoropopliteal reconstructions.