Abstract
At the present time, it is a matter of common knowledge that the vascular prosthesis which is used for clinical routine work is all crimped. During the observation on the reparative process of implanted arterial prosthesis, we have found that useless deposit of blood cells took place to flatten the corrugated inner surface of the prosthesis, and as a result, a thick fibrin layer has been formed in due process. The phenomenon has delayed the organization of the inner surface of the prosthesis, having led to the formation of a very thick pseudointima.
On the other hand, we have implanted the non-crimped prosthesis of the same material into dog's femoral arteries and, after compared with the crimped vascular prosthesis, we have come to a conclusion that the disadvantageous character of the crimped vascular prosthesis could be completely got rid of in the case of the latter experiment. In addition to this, an excellent reparative process could have been clearly observed, having pseudointima very thin.
We have again concluded that the use of the noncrimped vascular prosthesis for small arterial replacements has been very effective.
