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Gastric Substitutes J. METZGER· F. HARDER· M. VON FLUE Springer-Verlag Berlin Heidelberg GmbH J. METZGER F. HARDER M. VON FLÜE Gast ic S stet tes With 119 figures, mostly in color, and 34 tables , Springer Dr. med. J. METZGER ISBN 978-3-642-62497-1 Leitender Arzt Kantonsspital Luzem Cataloging-in-Publication Data applied for Chirurgische Klinik A Die Deutsche Bibliothek -CIP-Einheitsaufnahme 6000 Luzem, Switzerland Metzger, Jürg: Gastric substitutes 1 Jürg Metzger; Felix Prof. Dr. med. F. HARDER Harder; Markus von Flüe. - Netzibodenstrasse 34 Springer-Verlag Berlin Heidelberg GmbH, 2002 ISBN 978-3-642-62497-1 ISBN 978-3-642-55880-1 (eBook) 4133 Pratteln, Switzerland DOI 10.1007/978-3-642-55880-1 This work is subject to copyright. All rights are reserved, Prof. Dr. med. M. VON FLÜE whether the whole or part of the material is concemed, Chefarzt specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on Kantonsspital Luzem microfilms or in any other ways and storage in data Chirurgische Klinik A banks. Duplication of this publication or parts thereof is 6000 Luzem, Switzerland permitted only under the provisions of the German Copyright Law of September 9, 1965, in its current version, and permission for use must always be obtained from Springer Verlag. Violations are liable for prosecution under the German Copyright Law. © Springer-Verlag Berlin Heidelberg 2003 Originally published by Springer-Verlag Berlin Heidelberg New York in 2003 Softcover reprint of the hardcover 1s t edition 2003 http://www.springer.de The use of general descriptive names, registered names, trademarks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. Product liability: The publisher cannot guarantee the accuracy of any information about dosage and application contained in this book. In every individual case the user must check such information by consulting the relevant literature. Production: PRO EDIT GmbH, Heidelberg, Germany Cover design: Erich Kirchner, Heidelberg, Germany Typesetting: Detzner Fotosatz, Speyer, Germany SPIN: 10779449 24/3130 So -5 4 3 2 1 0 Contents 1 Introduction ............. . 1 2 The Consequences of a Gastrectomy 3 2.1 The Physiology of the Stomach .... 3 2.2 Postgastrectomy Syndromes: An Overview 4 2.3 Disturbed Gastric Function and Motility 5 2.4 Reduced Reservoir Problems (Small Gastric Remnant) .. 5 2.5 The Loss of Duodenal Route . 5 2.6 Dumping Symptoms ..... 6 2.6.1 Incidence and Pathophysiology 6 2.6.2 Early Dumping ......... . 6 2.6.3 Late Dumping . . . . . . . . . . . . 6 2.6.4 A Classification and Scoring System 6 2.6.5 Therapy ..... 7 2.7 Alkaline Reflux 7 2.7.1 Pathophysiology 7 2.7.2 Diagnosis .... 8 2.7.3 Barrett's Oesophagus and Oesophageal Cancer 8 2.7.4 Treatment and Prevention . . 9 2.8 Loop Syndromes ...... . 11 2.8.1 The Afferent Loop Syndrome 11 2.8.2 The Efferent Loop Syndrome 11 2.9 The Roux-Stasis Syndrome 11 2.10 Postvagotomy Diarrhoea . . . 12 2.11 Operations to Replace the Missing Pylorus 12 2.12 Quality ofLife 13 2.12.1 Significance 13 2.12.2 Tools 13 References 16 VI Contents 3 Gastric Substitutes: An Overview 25 3.1 History ...... . 25 3.1.1 Pouches ..... . 25 3.1.2 Duodenal Passage 28 3.1.3 Antireflux Procedures 30 3.1.4 Large-Bowel Procedures 30 3.2 Roux-en-Y Reconstruction 30 3.3 Operative Techniques ... 31 3.3.1 Small-Bowel Substitutes .. 32 3.3.1.1 The Hunt-Lawrence-Rodino Pouch 32 3.3.1.2 The Longmire Interpositional Pouch 32 3.3.1.3 Oesophagojejunoplication (Siewert -Peiper-Pouch) 32 3.3.1.4 Cuschieri Jejunal Pouch 33 3.3.2 Large-Bowel Substitutes 33 3.3.2.1 The Ileocaecal Segment 33 3.3.2.2 Transverse Colon . . . . 34 3.3.2.3 The Left Colon Substitute with the Creation of a His Angle as Reflux Barrier . . . . . 34 3.4 The Reservoir: A Necessity? ...... . 34 3.4.1 Evidence Supporting the Use of Pouches 34 3.4.2 Against the Use of Pouches .... . 39 3.4.3 Experimental Work ........ . 39 3.5 The Benefits of a Duodenal Passage . 40 3.5.1 Retaining the Duodenal Route 40 3.5.2 Disadvantages of Preserving the Duodenal Route 41 3.5.3 Experimental Work ......... . 42 3.6 The Consequences of Alkaline Reflux 42 3.7 Pouches, the Duodenal Route and Antireflux Procedures 43 3.8 State of the Art in 2001 43 3.9 Summary ........ . 44 3.10 Conclusion 45 3.11 The Ideal Gastric Substitute 45 References 45 4 The lIeutaecal Segment .............. 53 ........ 4.1 Surgical Anatomy . . . . . 53 4.2 Histology ......... . . . . . . . . 54 4.3 The Physiology of the Ileocaecal Region 55 4.3.1 Motility and Pressure Zones Which Suggest That There Is a Physiological Sphincter 55 4.3.2 Mechanical Barrier ..... 56 4.3.3 Regulation of the Sphincter 58 4.3.3.1 Food and Filling ....... 58 Contents VII 4.3.3.2 Hormones .... . 59 4.3.3.3 Nerve Supply .. . 59 4.3.3.4 Neurotransmitters 59 4.3.3.5 Chemicals and Drugs 59 4.3.3.6 The Ileal Brake ... 59 4.4 Loss of the Ileocaecal Valve 60 4.4.1 The Consequences of Ileocaecal Resection 60 4.4.2 Replacement of the Ileocaecal Valve 60 4.5 Summary 61 References 61 5 lIeocaecallnterpositional Graft as a Gastric Su bstitute .. ... 67 5.1 Management of Gastric Cancer ....... . 67 5.1.1 Extent of Gastric Resection ......... . 67 5.1.2 Lymphadenectomy (Dl vs D2 Compartment) 68 5.2 The History of the Ileocaecal Segment as a Gastric Substitute 68 5.3 Multipurpose Substitute 71 5.3.1 Bladder Replacement . . . 71 5.3.2 Oesophagus Replacement 72 5.3.3 Biliary Drainage 73 5.3.4 Rectal Replacement . 73 5.4 The Patients . . . . . 75 5.5 Protocol ....... . 76 5.5.1 The Preoperative Assessment 76 5.5.2 Evaluation: The Follow-Up 76 5.5.2.1 Body Weight ...... . 76 5.5.2.2 Endoscopy ......... . 76 5.5.2.3 Interview: Questionnaires 76 5.5.2.3.1 Dumping and Reflux Symptoms 76 5.5.2.3.2 The Quality-of-Life Score ..... 77 5.5.2.3.3 The Eypasch Scoring System: The Gastrointestinal Quality-of-Life Index Score (GIQLI) ................. . 77 5.5.2.4 Additional Tests (Special Evaluations) 79 5.5.2.4.1 Gastric Emptying ..... . 79 5.5.2.4.2 The Glucose Tolerance Test 79 5.5.2.4.3 Manometry ........ . 79 5.5.2.5 Data Analysis ... . 80 5.5.3 Statistical Analysis 80 5.6 Operative Technique 80 5.6.1 Position ....... . 80 5.6.2 Incision ....... . 80 5.6.3 Exploration and Determination of Operability 81 VIII Contents 5.7 Total Gastrectomy and Lymphadenectomy 82 5.7.1 Subdiaphragmatic Reconstruction 82 5.7.2 Oesophagoileal Anastomosis 84 5.7.3 Colo duodenal Anastomosis 86 5.7.4 Ileotransversostomy ..... 88 5.7.5 Intrathoracic reconstruction 89 5.8 Results ............ . 90 5.8.1 Operation Data ....... . 90 5.8.2 Complications and Patients Lost to Follow-Up 90 5.8.3 Body Weight Development ........ . 92 5.8.4 Diarrhoea, Dumping and Reflux Symptoms 92 5.8.5 Quality-of-Life Score 93 5.8.6 Endoscopy and Biopsy 93 5.8.7 Special Examinations . . 93 5.8.7.1 Gastric Emptying Rates 93 5.8.7.2 Glucose Tolerance Test 94 5.8.7.3 Manometry ...... . 94 5.9 Discussion . . . . . . . . 94 5.9.1 The Advantages of the Ileocaecal Segment as a Gastric Substitute ......... . 94 5.9.2 A Comparison of the Ileocaecal Segment with Other Reconstructions ...... . 96 5.9.2.1 Comparison with Small-Bowel Substitutes 96 5.9.2.l.l Morbidity and Mortality . . . . . . . . . . 96 5.9.2.1.2 Postoperative Body Weight Development 97 5.9.2.1.3 Dumping, Gastric Emptying Rates and Glucose Tolerance 97 5.9.2.1.4 Alkaline Reflux 98 5.9.2.1.5 Manometry ..... . 99 5.9.2.1.6 Quality ofLife . . . . . 99 5.9.2.2 Comparison with Large-Bowel Substitutes 99 5.9.3 Comparing Our Results With Other Authors Who Used the Same Segment ...... . 99 5.9.4 Conclusions from the Literature .... . 102 5.9.5 The Ileocaecal Segment as a Replacement for the Oesophagus and Stomach . . . . . 102 5.9.6 The Consequences of an Ileocaecal Transposition on Gut Transit 102 5.10 Indications 103 5.11 Outlook 103 References ..... . 103 lIeo(olon Segment as p,lorus Replacement . . . . . 111 6.1 Analysis 111 6.2 Model . 112 6.2.1 Animals 112 Contents IX 6.2.1.1 Anatomy ...... . 113 6.2.1.2 Physiology . . . . . . 114 6.2.1.3 Feeding and Housing 114 6.2.1.4 Training ..... . 114 6.2.2 Protocol ...... . 115 6.2.2.1 Aims of the Study . . 116 6.2.2.2 Outcome Measurements 116 6.2.3 Statistical Analysis ... 117 6.2.4 Body Weight and Postoperative Course 117 6.2.5 Glucose Tolerance Test ........ . 117 6.2.6 Gastroscopy and Biopsy . . . . . . . . . 117 6.2.7 Scintigraphic Measurement of Gastric Transit 118 6.2.8 Postmortem: Blood Samples, Histology, Immunohistology, Gastric Specimen Measurements 119 6.3 Technique .... . 121 6.3.1 Anaesthesia ... . 121 6.3.2 Surgical Technique 122 6.3.2.1 Resection ..... 122 6.3.2.2 Roux-en-Y Reconstruction 122 6.3.2.3 Ileocolon Interpositional Graft 123 6.3.3 Postoperative Care .. 125 6.4 Results ............. . 126 6.4.1 Operative Procedures and Intraoperative Complications 126 6.4.2 Postoperative Course . . 126 6.4.3 Body Weight ..... . 127 6.4.4 Glucose Tolerance Test 127 6.4.5 Rx Contrast Study and Gastric Emptying 129 6.4.6 Endoscopy and Histology After 3 Months 132 6.4.7 Postmortem: Blood Samples, Histology, Immunohistology, Gastric Specimen Measurements 134 6.5 Discussion and Indications 136 6.5.1 Indications for the Procedure 139 6.6 Summary 139 6.7 Conclusion 139 References 140 Subject Index . ......................... 145 - Acknowledgements I express my gratitude to everyone supporting my research activity. Special thanks are due to Dr. Lukas Degen MD (Oberarzt, Depart ment of Gastroenterology, University of Basel), who gave me out standing support and participated in the experimental part of my studies. He was of great help in developing and performing the model for scintigraphic measurement of gastric emptying rates in G6ttingen minipigs. Thanks are due to Professor Felix Harder MD (chairman of the Department of Surgery, University of Basel), Professor Michael He berer MD (head of the Research Division, Department of Surgery, University of Basel) and Professor Markus von Flue (chairman of the Department of Surgery, Kantonsspital Luzern) who collaborated in research. Markus von Flue initiated the idea of using the ileocae cal segment as a gastric substitute after partial or total gastrectomy. Many thanks are also due to Richard Weilenmann (Dr. vet., head of the Veterinary Unit, Roche Basel) and his team, who supported the practical part of my studies on G6ttingen minipigs. I wish to thank all the scrub nurses (organiser, Frau Marianne Settelen) and anaesthetists (Martin Siegemund and Wolfgang Stu der) who were part of the animal operating theatre team. I am especially grateful for my family's continuous support and understanding. Many thanks are also expressed to Tony Amery FRCS who care fully revised the manuscript. My work and my experiments were supported by grants from the Swiss National Science Foundation.

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