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Platinum Priority – Editorial

Referring to the article published on pp. 584–593 of this issue

Getting Ready for Penile Transplantation

Maarten Albersen

a , b , *

a

Department of Urology, University Hospitals Leuven, Leuven, Belgium;

b

Laboratory for Experimental Urology, University of Leuven, Leuven, Belgium

Penile transplantation is currently being considered as an

option for penile reconstruction after near-complete penile

tissue loss as illustrated by the three cases having been

performed over the world. In the October 2006 issue of

European Urology

, the first report on penile transplantation

emerged describing the successful transplantation of a 22-yr-

old donor penis onto a 44-yr-old recipient who had suffered a

traumatic penile defect

[1] .

[3_TD$DIFF]

The transplantation, which took

place in Guangzhou General Hospital in China, included

anastomosis of the urethra corpus spongiosum and corpus

cavernosum, and connection of the deep dorsal vein, dorsal

artery, dorsal nerve, and superficial dorsal vein. The recipient

could urinate smoothly in a standing position after 10 d,

[4_TD$DIFF]

following removal of the Foley catheter. Unfortunately, at

14 d postoperatively, because of severe psychological

problems of the recipient and his wife, the transplanted

penis was removed. In the November issue of the same year,

the authors stated that ‘‘The patient finally decided to give up

the treatment because of the wife’s psychological rejection as

well as the swollen shape of the transplanted penis’’

[2] .

The second case was described in 2014 and performed in

the Tygerberg hospital in South Africa, where a 21-yr-old

patient with a ritual circumcision gone wrong received a

penile transplant, likely anastomosed on the inferior

epigastric artery (‘‘a blood vessel was rerouted from the

lower abdomen’’)

[3]

. The surgery was complicated by a

reintervention after 4 d to remove a thrombus from the

anastomosis and another reintervention for hematoma

drainage. The patient, however, reports normal sexual and

urinary function 3.5 mo after transplantation, and recently

it was reported in the lay press that this gentleman

[5_TD$DIFF]

has been

able to father a child.

The third case was the first US-based penile transplan-

tation (genitourinary vascularized composite allograft

[GUVCA]) performed at Massachusetts General Hospital

which took place in May 2016 on a 64-yr-old recipient who

had had a partial penectomy for penile cancer leaving a

[6_TD$DIFF]

one

inch penile stump

[4] .

The surgery was complicated by a

hemorrhage needing reintervention at postoperative d 1,

but the patient left the hospital 3.5 wk after surgery with

intact perfusion and no signs of rejection.

The requirement of life-long, multidrug immunosup-

pression bearing the risk of serious side effects still remains

a limiting factor for widespread clinical application of

GUVCA. Whether or not we want to subject recipients of

penile transplantation to potentially harmful side effects

such as hypertension, renal function impairment, neutro-

penia, secondary cancers, diabetes, and others, for the

treatment a nonlife-threatening condition for which

autologous alternatives such as phalloplasty have been

described, is matter of an ethical debate that should be held

but is not the focus of this editorial

[5]

. Besides, researchers

are investigating novel bone marrow stem cell-based

therapeutic strategies that take into consideration the

unique immunological and biological aspects of vascular-

ized composite allografts and have been able to show

favorable results with regard to minimization of immuno-

suppressive medication and tolerance induction in both

translational and clinical trials in reconstructive transplan-

tation of hands, for example

[6]

.

Whilst these novel strategies are being further devel-

oped, researchers at Johns Hopkins University are now

raising the question what the effects of both rejection and

immunosuppressant drugs are on the transplanted organ, in

casu the penis, and in particular they have been investigat-

ing the potential effects on erectile function of the

transplant. This translational research is part of a bigger

multidisciplinary effort to set up an evidence based protocol

E U R O P E A N U R O L O G Y 7 1 ( 2 0 1 7 ) 5 9 4 – 5 9 5

available at

www.scienced irect.com

journal homepage:

www.europeanurology.com

DOI of original article:

http://dx.doi.org/10.1016/j.eururo.2016.07.006

.

* Laboratory for Experimental Urology, University of Leuven, Herestraat 49, Leuven 3000, Belgium. Tel. +32486334999.

E-mail address:

Maarten.albersen@uzleuven.be . http://dx.doi.org/10.1016/j.eururo.2016.10.025

0302-2838/

#

2016 European Association of Urology. Published by Elsevier B.V. All rights reserved.