EXPERIMENTAL AUTOLOGOUS SUBSTITUTE VASCULAR GRAFT FOR TRANSPLANTATION SURGERY

Author:

Kóbori L.1,Dallos G.2,Gouw Anette S. H.3,Németh Tamás4,Nemes B.5,Fehérvári I.6,Tegzess A. M.7,Slooff M. J. H.8,De Jong K. P.9,Perner F.10

Affiliation:

1. 1 Transplantation and Surgical Department, Semmelweis University H-1082 Budapest, Baross u. 23-25, Hungary

2. 2 Transplantation and Surgical Department, Semmelweis University H-1082 Budapest, Baross u. 23-25, Hungary

3. 3 Transplantation and Surgical Department, Semmelweis Medical University Please ask the editor of the journal.

4. 4 Department and Clinic of Surgery and Ophthalmology, Faculty of Veterinary Science, ‘Szent István’ University Herman O. út 15. Budapest, Hungary 1022 Budapest

5. 5 Transplantation and Surgical Department, Semmelweis University H-1082 Budapest, Baross u. 23-25, Hungary

6. 6 Transplantation and Surgical Department, Semmelweis University H-1082 Budapest, Baross u. 23-25, Hungary

7. 7 Transplantation and Surgical Department, Semmelweis Medical University Please ask the editor of the journal.

8. 8 Department of Hepatobiliary Surgery and Liver Transplantation, University Hospital Groningen Groningen, The Netherlands

9. 9 Department of Hepatobiliary Surgery and Liver Transplantation, University Hospital Groningen Groningen, The Netherlands

10. 10 Transplantation and Surgical Department, Semmelweis Medical University Please ask the editor of the journal.

Abstract

Vascular complications in liver transplantation are a major cause of graft failure and mortality. The aim of the study was to create autologous vascular graft without risk of rejection. Posterior rectus fascia sheath lined with peritoneum was used for iliac artery replacement in seven mongrel dogs. The patency was followed by palpation and Doppler ultrasound. The grafts were removed after one month. Five grafts remained patent. The Doppler showed good, relatively increased flow (median flow rate: 383 cm/sec) after one month in all of the cases. Slight increase in diameter was present in all cases. By microscopy the five patent grafts showed viable morphology, fibroblasts, smooth muscle cells and thin fibrin layer in the wall. The grafts were lined partially with a neoendothelial monolayer and a thin fibrin layer. In conclusion, this graft presents an acceptable patency rate and low thrombogenicity, and could be useful in transplantation. Further investigations are needed to study the effect of immunosuppression and rejection on long-term morphology and patency of the grafts.

Publisher

Akademiai Kiado Zrt.

Subject

General Veterinary

Reference24 articles.

1. Aortic revascularization of orthotopic liver allografts: indications and long term follow up.;H. Hennein;Surgery,1993

2. Autologous rectus fascia as an arterial replacement.;W. Holdefer;Arch. Surg.,1968

3. Follow up studies of iliofemoral arterial reconstruction in arteriosclerosis obliterans.;S. Hoye;N. Engl. J. Med.,1956

4. Arterial replacement with rectus fascia.;J. Kehne;Arch. Surg.,1956

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