open access

Vol 3, No 4 (2001)
Published online: 2002-04-25
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The healing process of the dallon vascular prosthesis in the human arterial system. Morphological analysis of the material obtained during autopsy

Krzysztof Ziaja, Marek Błaszczyński, Irena Wolny, Grzegorz Kies, Tomasz Urbanek, Tomasz Ludyga
Chirurgia Polska 2001;3(4):179-188.

open access

Vol 3, No 4 (2001)
Published online: 2002-04-25

Abstract

Introduction: The aim of the study was to conduct morphological analyses of the healing process of Dallon vascular prostheses implanted in the human arterial system, obtained for examination after patient’s decease.
Material and methods: 40 Dallon straight and bifurcated vascular prostheses implanted in different locations of the arterial system obtained during autopsy were analysed. The prostheses were collected not later than 72 hours after the decease. The time between the implantation of the prosthesis and patient’s death varied from 2 days to 10 years 4 months (23.3 months on average). The graft specimens were examined macroscopically and microscopically.
Results: Analyses of the morphological images of the inner layer covering the vascular prosthesis during its patency show that on its surface reparation and synthesis process takes place all the time. The inner layer is not covered with endothelial or endothelial-like cells, although the prosthesis stays patent.
Conclusions: 1. The internal layer of the vascular prosthesis in the human arterial system is not covered by endothelium. 2. Despite the lack of endothelium, the prosthesis patency is preserved even after many years of functioning. 3. All the time during the implant’s functioning in the human body, reparation and synthesis processes are continuing on both surfaces of the prosthesis. 4. The prosthesis infection has an influence on the prosthesis fibre coil stability, causing its loosening.

Abstract

Introduction: The aim of the study was to conduct morphological analyses of the healing process of Dallon vascular prostheses implanted in the human arterial system, obtained for examination after patient’s decease.
Material and methods: 40 Dallon straight and bifurcated vascular prostheses implanted in different locations of the arterial system obtained during autopsy were analysed. The prostheses were collected not later than 72 hours after the decease. The time between the implantation of the prosthesis and patient’s death varied from 2 days to 10 years 4 months (23.3 months on average). The graft specimens were examined macroscopically and microscopically.
Results: Analyses of the morphological images of the inner layer covering the vascular prosthesis during its patency show that on its surface reparation and synthesis process takes place all the time. The inner layer is not covered with endothelial or endothelial-like cells, although the prosthesis stays patent.
Conclusions: 1. The internal layer of the vascular prosthesis in the human arterial system is not covered by endothelium. 2. Despite the lack of endothelium, the prosthesis patency is preserved even after many years of functioning. 3. All the time during the implant’s functioning in the human body, reparation and synthesis processes are continuing on both surfaces of the prosthesis. 4. The prosthesis infection has an influence on the prosthesis fibre coil stability, causing its loosening.
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Keywords

human; vascular prosthesis; healing; morphology; autopsy; microscopy; histology

About this article
Title

The healing process of the dallon vascular prosthesis in the human arterial system. Morphological analysis of the material obtained during autopsy

Journal

Chirurgia Polska (Polish Surgery)

Issue

Vol 3, No 4 (2001)

Pages

179-188

Published online

2002-04-25

Bibliographic record

Chirurgia Polska 2001;3(4):179-188.

Keywords

human
vascular prosthesis
healing
morphology
autopsy
microscopy
histology

Authors

Krzysztof Ziaja
Marek Błaszczyński
Irena Wolny
Grzegorz Kies
Tomasz Urbanek
Tomasz Ludyga

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