Laryngeal Transplantation Report

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Laryngeal Transplantation Report The Royal College of Surgeons of England Laryngeal transplantation Laryngeal transplantation WORKING PArtY FINAL REPOrt June 2011 External Affairs [email protected] Published by The Royal College of Surgeons of England 35–43 Lincoln’s Inn Fields London WC2A 3PE www.rcseng.ac.uk/publications/docs The Royal College of Surgeons of England © 2011 All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permission of The Royal College of Surgeons of England. While every effort has been made to ensure the accuracy of the information contained in this publication, no guarantee can be given that all errors and omissions have been excluded. No responsibility for loss occasioned to any person acting or refraining from action as a result of the material in this publication can be accepted by The Royal College of Surgeons of England. Registered charity no. 212808 The cover image of this document is taken from the India proofs of the first edition of Gray’s Anatomy, held in the College archives. Table of contents Foreword 3 Executive summary 3 1 Background 4 2 Laryngeal transplantation 5 Which parts need to be transplanted? 6 Blood supply 6 Nerve supply 6 Functional outcomes of laryngeal transplantation 6 Breathing 6 Swallowing 6 Voice and speech quality 6 Alternative techniques for voice restoration 7 Previous laryngeal transplantations 7 Key references and further reading 7 3 Immunology 8 Advances in immunology and suppression 8 Rejection rates 8 Long-term effects 8 Key references and further reading 8 4 Psychological and societal issues relevant to laryngeal transplantation 9 Patient selection 9 Treatment decision making 9 Post-operative issues 9 Fears about the viability of the transplant and of rejection 10 Integrating the transplant into an existing body image 10 Adherence to post-transplant treatment regimens 10 Key references and further reading 10 5 Ethico-legal issues concerning laryngeal transplantation 11 Risks and benefits of laryngeal transplantation 11 Recruitment and consent process 11 Information 11 Recruitment and voluntariness 11 Competence 12 Research ethics 12 Key references and further reading 12 1 6 Service implications for delivering a laryngeal transplantation service 13 Assessing patient suitability 13 Training of surgical and peri-operative teams 13 Advance care planning and follow-up requirements 13 Key references and further reading 14 7 Other considerations 15 Dealing with the media 15 8 Conclusions and recommendations 15 A Annex A: Working party membership 16 2 The Royal College of Surgeons of England Laryngeal transplantation Foreword Transplantation continues to progress at a rapid pace but still report will also be applicable to other areas of transplantation. remains one of the most challenging areas of modern medicine. I appreciate that a new transplant procedure brings into sharp Since the first kidney transplant over 50 years ago we are now focus many ethical, psychological and societal questions, which able to transplant solid organs such as kidneys, livers and hearts I believe this report addresses in order to inform the wider with good short and long-term outcomes for patients. Many debate. advances in the surgical aspects over the last half century would not have been made possible without our understanding of how I would like to thank the working group for bringing their wide the immune system responds to a transplanted organ and the range of expertise to this work. I recommend it as a good development of corresponding immunosuppressive treatments summary of this new area of surgery as well as a source of that prevent rejection. guidance to those involved in pioneering the operation to ensure that this procedure delivers the best possible outcomes I hope the guidance in this report will be helpful to those for patients. involved in pioneering this operation in the UK and will also provide useful information to patients who may benefit in John Black the future from this procedure. Some of the contents of this President, The Royal College of Surgeons of England Executive summary The aim of laryngeal transplantation is to restore a physical and The working party believes that there is a potential for laryngeal functioning organ, to replace a lost or irreparably injured larynx transplantation to improve the quality of life of an individual (voice box) and to allow the recipient to achieve ‘normal’ or who has lost or irrreparably damaged his or her larynx. In the ‘acceptable’ stoma (tracheostoma), free breathing, swallowing decade since the first (and only) published transplantation and voice. The first successful operation was a total laryngeal was conducted, there have been advances in both surgical transplantation performed by Marshall Strome in Ohio, USA, in technology and immunosuppression that make the short and 1998. Since that pioneering procedure only one other human long-term outcomes for recipients more predictable. total laryngeal transplant has been undertaken worldwide but never, so far, in the UK. This report recommends that laryngeal transplantation only be contemplated in patients who have suffered irreversible Like all surgical procedures, laryngeal transplantation carries trauma or injury to their larynx or patients who, as a result of risks and burdens as well as benefits. Laryngeal transplantation a large benign or low-grade malignant tumour, have undergone is aimed at improving quality of life rather than saving life and treatment by way of a total laryngectomy. At present, because it carries potentially lifelong medical implications. Although of the increased risk of a second cancer, patients who have been immunosuppressive therapy is ever improving, trauma patients treated for locally advanced or recurrent throat cancer should would be the ideal candidates for early laryngeal transplantation. not be considered suitable. The assessment and selection of laryngeal transplant candidates is important, ideally with the medical and psychological criteria The report also highlights that recent successes in specific sites, being defined in advance of the procedure by a multi-disciplinary such as arm and face transplantation, indicate that there can be team. The risks involved in laryngeal transplantation warrant a reduced need for intensive immunosupression. The report a thorough disclosure and a detailed consent form. Patient also makes specific recommendations that the transplant team confidentiality should be upheld, unless the patient consents to provide and monitor detailed functional and psychological revealing otherwise protected information. outcomes pre and post-operatively. 3 Laryngeal transplantation The Royal College of Surgeons of England Background Transplantation is one of the most challenging and complex prevent rejection, thereby maintaining viability of the 1areas of modern medicine. The field of transplantation transplanted organ. medicine continues to progress at a rapid pace, with improvements in the outcomes of established transplants One area of transplantation that has received much attention in (such as heart, kidney and liver) as well as new areas the surgical literature is the potential to transplant a voice box (such as face, arm and hand), which are still in their infancy. (larynx). The College set up a working group to consider the progress of laryngeal transplantation and whether such surgery Advances in transplantation have only been possible ought to be performed in the UK, given the current state of by corresponding developments in our understanding knowledge and its future. of how the immune system responds to transplanted organs and tissues and the effect on the viability of This report provides guidance to those involved in pioneering the transplant. Of particular importance has been the the operation in the UK as well as adding information to the development of immunosuppressive treatments that wider debate in this new area of transplantation. 1902 Alexis Carrel demonstrates a method of joining blood vessels to make organ transplant feasible in France 1905 First reported cornea transplant by Eduard Zirm takes place in Moravia (now Czech Republic) 1954 First successful kidney transplant operation performed by Joseph Murray in Boston, USA 1963 First liver transplant performed by Thomas Starzl in Denver, USA 1967 First heart transplant operation performed by Christiaan Barnard in South Africa 1983 First combined heart and lung transplant performed by Magdi Yacoub, UK 1994 NHS Organ Donor Register established in the UK 1998 First hand transplant performed by Clint Hallam, France First laryngeal transplantation performed by Marshall Strome, Ohio, USA 2001 First complete double arm transplant carried out by Edgar Biemer and Christoph Hoehnke, Germany 2005 First partial face transplant carried out by Bernard Devauchelle and Jean-Michel Dubernard, France 2008 First stem-cell airway transplant performed by Paolo Macchiarini, Spain, and Martin Birchall, UK 2010 First full-face transplant carried out by Joan Pere Barret, Spain Table 1 Modern tissue transplantation 4 The Royal College of Surgeons of England Laryngeal transplantation Laryngeal transplantation The aim of laryngeal transplantation is to give the recipient How the larynx works 2normal breathing, swallowing and voice production. Laboratory The larynx is another name for the voice box. Its position in research providing
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