Universität zu Köln

Safi, Ali-Farid, Safi, Sema, Tayeh, Mahmoud, Timmer, Marco, Goldbrunner, Roland and Kauke, Martin (2018). A novel microsurgical anastomosis training model using gradually thawed cryopreserved microvessels of rat cadavers. J. Cranio-MaxilloFac. Surg., 46 (7). S. 1126 - 1132. EDINBURGH: CHURCHILL LIVINGSTONE. ISSN 1878-4119

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Abstract

In consideration of the 3-R-rule (Refine-Replace-Reduce) as a guideline for promoting ethical use of animals for surgical training, we present a novel training model for microvessel anastomosis. In a rat cadaveric study, we evaluated the surgical anatomy of the common carotid artery (CCA), external jugular vein (EJV) and femoral vessels (FV) which were then used as templates for the present investigation. Anatomical dissection of 30 rat cadavers was performed. Two residents without prior microsurgical experience were included in the study and performed 5 CCA, 5 femoral artery, 5 EJV and 5 femoral vein anastomoses. Patency and leakage served as qualitative variables and operation time as a quantitative variable for efficiency control. The average time improved for arterial and venous anastomoses (45 min-22 and 60 to 32 min, respectively) for both surgeons. While both surgeons experienced patency failure or leakage within the first half of performed arterial and venous anastomoses, they could improve to a 100% patency rate without the occurrence of leakage for the last half of trials. The rat head & neck anatomy presents various characteristics related to the harvest of the vessels of interest. We provide anatomical knowledge about the topography related to the harvest of the CCA, EJV, and W. Our model is an easily accessible, low-cost microsurgical simulation model, allowing a realistic and instructive performance of anastomoses. Since cadaveric vessels are used, an approval of the local ethics committee is not needed. (C) 2018 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Safi, Ali-Farid UNSPECIFIED UNSPECIFIED UNSPECIFIED Safi, Sema UNSPECIFIED UNSPECIFIED UNSPECIFIED Tayeh, Mahmoud UNSPECIFIED UNSPECIFIED UNSPECIFIED Timmer, Marco UNSPECIFIED UNSPECIFIED UNSPECIFIED Goldbrunner, Roland UNSPECIFIED UNSPECIFIED UNSPECIFIED Kauke, Martin UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-180513
DOI:	10.1016/j.jcms.2018.05.018
Journal or Publication Title:	J. Cranio-MaxilloFac. Surg.
Volume:	46
Number:	7
Page Range:	S. 1126 - 1132
Date:	2018
Publisher:	CHURCHILL LIVINGSTONE
Place of Publication:	EDINBURGH
ISSN:	1878-4119
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language MICROVASCULAR ANASTOMOSES; SKILLS; IMPROVES; ARTERY Multiple languages Dentistry, Oral Surgery & Medicine; Surgery Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/18051