Einfluss der hamodynamischen Bedingungen und der Prothesenstruktur auf die Endothelialisierung von klinischen und experimentellen kleinlumigen Gefassprothesen [Effect of hemodynamic conditions and prosthesis structure on endothelialization of clinical and experimental small lumen vascular prostheses]

Details

Serval ID
serval:BIB_CF2797D0676B
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Einfluss der hamodynamischen Bedingungen und der Prothesenstruktur auf die Endothelialisierung von klinischen und experimentellen kleinlumigen Gefassprothesen [Effect of hemodynamic conditions and prosthesis structure on endothelialization of clinical and experimental small lumen vascular prostheses]
Journal
Helvetica Chirurgica Acta
Author(s)
Baitella-Eberle  G., Lachat  M., Muller-Glauser  W., Neudecker  A., von Segesser  L. K., Turina  M.
ISSN
0018-0181
Publication state
Published
Issued date
01/1991
Volume
57
Number
4
Pages
659-63
Notes
English Abstract
Journal Article --- Old month value: Jan
Abstract
Seeding of small-diameter vascular prostheses (ID less than or equal to 6 mm) with autologous microvascular cells (AMVC) results in a complete endothelial cell layer on the luminal surface. The purpose of this study was to examine the influence of the blood flow velocity (due to 4 or 6 mm ID) and the structure of inner graft surface (crimped, uncrimped) on the endothelialization. AMVC were harvested from omental adipose tissue (mean: 0.56 X 10(6) cells/g tissue) from 10 mongrel dogs (mean: 27.9 kg). During preclotting, the 4 mm uncrimped and the 6 mm crimped double velour Dacron prostheses (Meadox Medicals, Inc.) were seeded with 1.0 X 10(6) cells/cm2 graft surface. Grafts were implanted into the carotid arteries (N = 5 in each group). The animals received antiplatelet therapy. After five weeks, all seeded prostheses were patent. The thrombus free surface (TFS) of seeded prostheses was 99.9% (4 mm) and 90.5% (6 mm). Scanning electron microscopy revealed an athrombogenic layer of endothelial cells on a smooth surface. -It is concluded that in canine experiments endothelialization of 4 and 6 mm grafts after seeding with AMVC is not affected by blood flow velocity or graft structure.
Keywords
Animals *Blood Vessel Prosthesis Dogs Endothelium, Vascular/*pathology Hemodynamics/*physiology Microscopy, Electron, Scanning *Polyethylene Terephthalates Prosthesis Design
Pubmed
Web of science
Create date
14/02/2008 14:16
Last modification date
20/08/2019 15:49
Usage data