Abstract
The fate of two different kinds of new small arterial substitutes, porous and nonporous, has been compared, particularly with regard to the structure of the luminal surface. Twenty-eight weavenit Dacron pyrolytic carbon coated grafts and 28 glutaraldehyde-tanned human umbilical vein segments were implanted into the carotid arteries of dogs. Grafts were removed at intervals, from ten to 120 days after implantation, and examined by scanning electron microscopy. The cumulative patency rate was 96.4 per cent for Dacron and 85.7 per cent for umbilical vein grafts. Ten days after implantation, the Dacron grafts were uniformly covered by a thin thrombus layer, while the umbilical vein grafts showed a thin network of fibrin on the central portion of the luminal surface of the graft and thrombotic deposits at the anastomoses. Thirty days after implantation, both types of prostheses showed the development of a thin fibrous tissue layer on the innner surface. Finally, at 120 days, an endothelial lining was observed.
| Original language | English |
|---|---|
| Pages (from-to) | 358-362 |
| Number of pages | 5 |
| Journal | Surgery Gynecology and Obstetrics |
| Volume | 155 |
| Issue number | 3 |
| Publication status | Published - 1982 |
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ASJC Scopus subject areas
- Surgery
- Obstetrics and Gynaecology
Cite this
Scanning electron microscopy evaluation of porous and nonporous arterial substitutes. / Ratto, G. B.; Lunghi, C.; Spinelli, E.; Agati, R.; Tomellini, M.; Motta, G.
In: Surgery Gynecology and Obstetrics, Vol. 155, No. 3, 1982, p. 358-362.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Scanning electron microscopy evaluation of porous and nonporous arterial substitutes
AU - Ratto, G. B.
AU - Lunghi, C.
AU - Spinelli, E.
AU - Agati, R.
AU - Tomellini, M.
AU - Motta, G.
PY - 1982
Y1 - 1982
N2 - The fate of two different kinds of new small arterial substitutes, porous and nonporous, has been compared, particularly with regard to the structure of the luminal surface. Twenty-eight weavenit Dacron pyrolytic carbon coated grafts and 28 glutaraldehyde-tanned human umbilical vein segments were implanted into the carotid arteries of dogs. Grafts were removed at intervals, from ten to 120 days after implantation, and examined by scanning electron microscopy. The cumulative patency rate was 96.4 per cent for Dacron and 85.7 per cent for umbilical vein grafts. Ten days after implantation, the Dacron grafts were uniformly covered by a thin thrombus layer, while the umbilical vein grafts showed a thin network of fibrin on the central portion of the luminal surface of the graft and thrombotic deposits at the anastomoses. Thirty days after implantation, both types of prostheses showed the development of a thin fibrous tissue layer on the innner surface. Finally, at 120 days, an endothelial lining was observed.
AB - The fate of two different kinds of new small arterial substitutes, porous and nonporous, has been compared, particularly with regard to the structure of the luminal surface. Twenty-eight weavenit Dacron pyrolytic carbon coated grafts and 28 glutaraldehyde-tanned human umbilical vein segments were implanted into the carotid arteries of dogs. Grafts were removed at intervals, from ten to 120 days after implantation, and examined by scanning electron microscopy. The cumulative patency rate was 96.4 per cent for Dacron and 85.7 per cent for umbilical vein grafts. Ten days after implantation, the Dacron grafts were uniformly covered by a thin thrombus layer, while the umbilical vein grafts showed a thin network of fibrin on the central portion of the luminal surface of the graft and thrombotic deposits at the anastomoses. Thirty days after implantation, both types of prostheses showed the development of a thin fibrous tissue layer on the innner surface. Finally, at 120 days, an endothelial lining was observed.
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UR - http://www.scopus.com/inward/citedby.url?scp=0019994329&partnerID=8YFLogxK
M3 - Article
C2 - 6214034
AN - SCOPUS:0019994329
VL - 155
SP - 358
EP - 362
JO - Surgery Gynecology and Obstetrics
JF - Surgery Gynecology and Obstetrics
SN - 0039-6087
IS - 3
ER -