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- Norgren, Lars, et al.
(författare)
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Immune response to collagen impregnated Dacron double velour grafts for aortic and aorto-femoral reconstructions
- 1990
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Ingår i: European Journal of Vascular Surgery. - 0950-821X. ; 4:4, s. 379-384
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Tidskriftsartikel (refereegranskat)abstract
- This study presents 20 patients, randomised to receive either a collagen-treated or an ordinary Dacron graft for aortic reconstructions, and the results of a skin-prick test, blood parameters and ELISA for anti-collagen antibodies as well as NMR pictures during a 6 week follow-up period. Forty per cent (4/11) of those receiving a collagen impregnated graft had a significantly increased titre of antibodies and NMR revealed in two out of 11 patients either a slightly increased amount of fluid or fibrosis around the graft, both collagen impregnated. No differences were found between the graft groups concerning body temperature and leucocyte or platelet counts. The skin-prick test for collagen was negative in all cases.
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2. |
- Pärsson, Håkan, et al.
(författare)
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The effect of dextran 40 and Dazmegrel on early platelet deposition onto vascular grafts
- 1990
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Ingår i: Vasa: European Journal of Vascular Medicine. - 0301-1526. ; 19:3, s. 242-246
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Tidskriftsartikel (refereegranskat)abstract
- Platelet deposition onto double velour Dacron (n = 14) and double velour Dacron with internal collagen (n = 14) interposition grafts were examined experimentally. The accumulation was assessed by reinfusion of 111In labelled platelets and imaging with a scintillation camera. One group received Dextran-40 intravenously (n = 14) and one group received Dazmegrel (n = 14) intravenously. No graft occlusions were noted. Differences in effects of Dextran-40 and Dazmegrel were not observed. The study indicates a beneficial effect of infused Dextran-40 as well as Dazmegrel. The explanation might be reduced interaction graft wall versus blood-platelets.
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3. |
- Pärsson, Håkan, et al.
(författare)
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Thrombogenicity of metallic vascular stents in arteries and veins--an experimental study in pigs
- 1990
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Ingår i: European Journal of Vascular Surgery. - 0950-821X. ; 4:6, s. 617-623
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Tidskriftsartikel (refereegranskat)abstract
- Endovascular expanding metallic stents were percutaneously implanted in the iliac arteries and veins of pigs. The vessels had been stenosed by a ligature of catgut 4 weeks prior to this. Platelets were labeled with Indium 111 and the deposition onto the dilated and stented areas was dynamically registered for 240 min with a scintillation camera. All six arterial and six venous stents remained patent throughout the examination period. At the site of arterial stenting there was an increase, of deposited activity, and in the veins a decrease. These experimental findings support the use of endovascular stents after dilation, especially in venous stenoses
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