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Penile autotransplantation in rats: An animal model

CONTEXT: Penile allotransplantation might be a viable option for patients who need penile reconstruction. AIMS: A successful autotransplantation rat model is the first step toward proceeding for allotransplantation. We herein evaluate autotransplantation following transaction of the rat penis just d...

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Autores principales: Seyam, Raouf M., Kattan, Said A., Assad, Lina W., El-Sayed, Raafat M., Almohanna, Falah H.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3835983/
https://www.ncbi.nlm.nih.gov/pubmed/24311905
http://dx.doi.org/10.4103/0974-7796.120300
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author Seyam, Raouf M.
Kattan, Said A.
Assad, Lina W.
El-Sayed, Raafat M.
Almohanna, Falah H.
author_facet Seyam, Raouf M.
Kattan, Said A.
Assad, Lina W.
El-Sayed, Raafat M.
Almohanna, Falah H.
author_sort Seyam, Raouf M.
collection PubMed
description CONTEXT: Penile allotransplantation might be a viable option for patients who need penile reconstruction. AIMS: A successful autotransplantation rat model is the first step toward proceeding for allotransplantation. We herein evaluate autotransplantation following transaction of the rat penis just distal to the urethral bulb. SETTINGS AND DESIGN: Experimental animal study. MATERIALS AND METHODS: Five Sprague–Dawely rats weighing 520 g (SD 19) were used. Utilizing a magnification of 6-40, transection and immediate anastomosis of the tunica albuginea, urethra, dorsal vein and nerves were carried out. Vesicostomy was made to divert urine. The glandular skin was sutured to the perineum and the abdominal wall was closed in layers. STATISTICAL ANALYSIS USED: Descriptive statistics. RESULTS: Average surgery time was 8 h. The first two rats had no vesicostomy and died in the first postoperative day from retention. Three rats tolerated well the procedure and survived to the end point. One rat was sacrificed at day 10 and histopathology showed 30-50% necrosis of the implanted penis. Another rat was sacrificed at day 20 and showed normal cavernous tissue. The fifth rat was sacrificed 3 months postoperatively and showed evidence of moderate corporal fibrosis. Urethral fistula and necrosis of corpus spongiosum, dorsal nerve necrosis and dorsal vein occurred in all animals. CONCLUSIONS: Penile autotransplantation in rats is feasible and provides the basis for evaluation of the corpora cavernosa in an allotransplantation model. Long-term urethral continuity and dorsal neurovascular bundle survival in this model is difficult to establish.
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spelling pubmed-38359832013-12-05 Penile autotransplantation in rats: An animal model Seyam, Raouf M. Kattan, Said A. Assad, Lina W. El-Sayed, Raafat M. Almohanna, Falah H. Urol Ann Original Article CONTEXT: Penile allotransplantation might be a viable option for patients who need penile reconstruction. AIMS: A successful autotransplantation rat model is the first step toward proceeding for allotransplantation. We herein evaluate autotransplantation following transaction of the rat penis just distal to the urethral bulb. SETTINGS AND DESIGN: Experimental animal study. MATERIALS AND METHODS: Five Sprague–Dawely rats weighing 520 g (SD 19) were used. Utilizing a magnification of 6-40, transection and immediate anastomosis of the tunica albuginea, urethra, dorsal vein and nerves were carried out. Vesicostomy was made to divert urine. The glandular skin was sutured to the perineum and the abdominal wall was closed in layers. STATISTICAL ANALYSIS USED: Descriptive statistics. RESULTS: Average surgery time was 8 h. The first two rats had no vesicostomy and died in the first postoperative day from retention. Three rats tolerated well the procedure and survived to the end point. One rat was sacrificed at day 10 and histopathology showed 30-50% necrosis of the implanted penis. Another rat was sacrificed at day 20 and showed normal cavernous tissue. The fifth rat was sacrificed 3 months postoperatively and showed evidence of moderate corporal fibrosis. Urethral fistula and necrosis of corpus spongiosum, dorsal nerve necrosis and dorsal vein occurred in all animals. CONCLUSIONS: Penile autotransplantation in rats is feasible and provides the basis for evaluation of the corpora cavernosa in an allotransplantation model. Long-term urethral continuity and dorsal neurovascular bundle survival in this model is difficult to establish. Medknow Publications & Media Pvt Ltd 2013 /pmc/articles/PMC3835983/ /pubmed/24311905 http://dx.doi.org/10.4103/0974-7796.120300 Text en Copyright: © Urology Annals http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Seyam, Raouf M.
Kattan, Said A.
Assad, Lina W.
El-Sayed, Raafat M.
Almohanna, Falah H.
Penile autotransplantation in rats: An animal model
title Penile autotransplantation in rats: An animal model
title_full Penile autotransplantation in rats: An animal model
title_fullStr Penile autotransplantation in rats: An animal model
title_full_unstemmed Penile autotransplantation in rats: An animal model
title_short Penile autotransplantation in rats: An animal model
title_sort penile autotransplantation in rats: an animal model
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3835983/
https://www.ncbi.nlm.nih.gov/pubmed/24311905
http://dx.doi.org/10.4103/0974-7796.120300
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