Which prosthesis is more resistant to vascular graft infection: polytetrafluoroethylene or Omniflow II biosynthetic grafts?
OBJECTIVE
The aim of this study was to determine whether polytetrafluoroethylene grafts or Omniflow II biosynthetic grafts are more resistant to infection caused by Staphylococcus aureus.


METHODS
Sixty rats were divided into six groups. In Groups 1A, 1B and 1C, a polytetrafluoroethylene graft was implanted in each rat, and, in Groups 2A, 2B and 2C, a biosynthetic graft was implanted in each rat. Staphylococcus aureus was inoculated into Groups 1B, 1C, 2B and 2C, and the rats in Groups 1C and 2C were treated with teicoplanin. One week later, the rats were euthanized, the grafts were removed and a microbiological count was performed. A histopathological examination was subsequently carried out, and the C-reactive protein, prealbumin and leukocyte levels were investigated.


RESULTS
There were no significant differences in the C-reactive protein, prealbumin and leukocyte levels. The differences in the results of the microbiological evaluations between the groups were significant. The quantitative culture results showed no bacterial growth in Groups 1A, 1C and 2A. The number of bacteria in Group 1B was statistically lower than that in Group 2B. When the groups receiving treatment were compared, Group 2C had bacterial growth, whereas Group 1C did not. The histopathological examinations showed similar results.


CONCLUSIONS
Omniflow II grafts are more susceptible to infection than polytetrafluoroethylene grafts.
Department of Cardiovascular Surgery, Faculty of Medicine, Kahramanmaras Sutcu Imam University, Kahramanmaras, Turkey. orhanbozoglan1975@hotmail.com.
Orhan
O
Bozoglan
Department of Cardiovascular Surgery, Faculty of Medicine, Kahramanmaras Sutcu Imam University, Kahramanmaras, Turkey.
Bulent
B
Mese
Department of Cardiovascular Surgery, Faculty of Medicine, Kahramanmaras Sutcu Imam University, Kahramanmaras, Turkey.
Erdinc
E
Eroglu
Department of Cardiovascular Surgery, Faculty of Medicine, Kahramanmaras Sutcu Imam University, Kahramanmaras, Turkey.
Serdal
S
Elveren
Department of Microbiology, Kahramanmaras Sutcu Imam University, Kahramanmaras, Turkey.
Mustafa
M
Gul
Department of Biochemistry, Kahramanmaras Sutcu Imam University, Kahramanmaras, Turkey.
Ahmet
A
Celik
Department of Cardiovascular Surgery, Faculty of Medicine, Kahramanmaras Sutcu Imam University, Kahramanmaras, Turkey.
Halil Ibrahim
HI
Yildirimdemir
Department of Pathology, Kahramanmaras Sutcu Imam University, Kahramanmaras, Turkey.
Harun
H
Ciralik
Department of Cardiovascular Surgery, Faculty of Medicine, Kahramanmaras Sutcu Imam University, Kahramanmaras, Turkey.
Alptekin
A
Yasim
D000818:Animals; D019072:Antibiotic Prophylaxis; D001705:Bioprosthesis / Q000009:adverse effects* / Q000382:microbiology*; D001807:Blood Vessel Prosthesis / Q000009:adverse effects* / Q000382:microbiology*; D019917:Blood Vessel Prosthesis Implantation / Q000009:adverse effects / Q000379:methods*; D011138:Polytetrafluoroethylene; D011475:Prosthesis Failure; D016459:Prosthesis-Related Infections / Q000382:microbiology* / Q000517:prevention & control; D051381:Rats; D013203:Staphylococcal Infections; D017334:Teicoplanin / Q000008:administration & dosage
D017334:Teicoplanin; D011138:Polytetrafluoroethylene
Graft infection; Omniflow II; PTFE graft