Adult Congenital Heart Disease A PRACTICAL GUIDE Adult Congenital Heart Disease A PRACTICAL GUIDE Michael A. Gatzoulis Royal Brompton Hospital and National Heart & Lung Institute at the Imperial College London, UK Lorna Swan Department of Cardiology Western Infi rmary Glasgow, UK Judith Therrien Sir M. Davis Jewish General Hospital McGill University Montreal, Quebec, Canada George A. Pantely Division of Cardiology Oregon Health and Science University Portland, Oregon, USA INCLUDING ‘Pregnancy and Contraception’ chapter by Philip J. Steer FOREWORD BY Eugene Braunwald © 2005 by Blackwell Publishing Ltd BMJ Books is an imprint of the BMJ Publishing Group Limited, used under licence Blackwell Publishing, Inc., 350 Main Street, Malden, Massachusetts 02148-5020, USA Blackwell Publishing Ltd, 9600 Garsington Road, Oxford OX4 2DQ, UK Blackwell Publishing Asia Pty Ltd, 550 Swanston Street, Carlton, Victoria 3053, Australia The right of the Authors to be identifi ed as the Authors of this Work has been asserted in accordance with the Copyright, Designs and Patents Act 1988. 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, except as permitted by the UK Copyright, Designs and Patents Act 1988, without the prior permission of the publisher. First published 2005 Library of Congress Cataloging-in-Publication Data Adult congenital heart disease : a practical guide / Michael A. Gatzoulis … [et al.] ; foreword by Eugene Braunwald p. ; cm. Includes index. ISBN 0-7279-1668-8 1. Congenital heart disease. [DNLM: 1. Heart Defects, Congenital—Adult. WG 220 A2445 2005] I. Gatzoulis, Michael A. RC687.A454 2005 616.1’2043—dc22 2004019723 ISBN 0-7279-1668-8 A catalogue record for this title is available from the British Library Commissioning Editor: Mary Banks Development Editor: Nick Morgan Project Manager: Tom Fryer, Sparks Production Controller: Kate Charman Set in Palatino 9.5/12pt by Sparks, Oxford – www.sparks.co.uk Printed and bound in India by Replika Press Pvt. Ltd For further information on Blackwell Publishing, visit our website: http://www.blackwellpublishing.com The publisher’s policy is to use permanent paper from mills that operate a sustainable forestry policy, and which has been manufactured from pulp processed using acid-free and elementary chlorine- free practices. Furthermore, the publisher ensures that the text paper and cover board used have met acceptable environmental accreditation standards. v Contents Foreword, vii Preface, ix Acknowledgments, x Part 1 General Principles, 1 1 Epidemiology of Congenital Heart Disease, 3 2 Services for the Adult with Congenital Heart Disease, 8 3 Pregnancy and Contraception, 16 4 Infective Endocarditis Prophylaxis, 36 5 Anticoagulation, 42 6 Lifestyle Issues, 49 7 Long-Term Outcome, 60 Part 2 Common Lesions, 65 8 Atrial Septal Defects and Anomalous Pulmonary Venous Drainage, 67 9 Ventricular Septal Defect, 82 10 Atrioventricular Septal Defect, 87 11 Left Ventricular Outfl ow Tract Disorders, 92 12 Coarctation of the Aorta, 97 13 Complete Transposition of the Great Arteries, 103 14 The Single Ventricle and Fontan Circulations, 112 15 Tetralogy of Fallot and Right Ventricular Outfl ow Tract Disorders, 125 16 Pulmonary Atresia with Ventricular Septal Defect, 132 17 Ebstein’s Anomaly of the Tricuspid Valve, 139 18 Patent Arterial Duct, 145 19 Marfan Syndrome, 153 20 Eisenmenger Syndrome, 161 21 Other Lesions, 174 22 Pulmonary Hypertension, 182 Part 3 Emergencies and Special Situations, 189 23 Arrhythmia and Syncope, 191 24 Suspected Infective Endocarditis, 196 vi Contents 25 Perioperative Care, 201 26 Heart Failure: Acute Management, 206 27 Care of the Cyanosed Patient, 209 Bibliography, 213 Glossary, 217 Appendix: Shunt Calculations, 257 Index, 261 vii Foreword The diagnosis and successful management of congenital heart disease rep- resents one of the greatest triumphs of cardiovascular medicine and surgery in the 20th century. As a consequence, the number of adults with congenital heart disease – both with repaired and unrepaired lesions – has grown rapidly, and is now approaching one million in North America. Similar increases have occurred in Western Europe. The care of adults with congenital heart disease represents a major challenge. They include a large number of diverse anatomic malformations of varying severities at various stages of their natural history and with different degrees of anatomic repair. Approximately one-third of these patients are considered to have ‘simple’ congenital heart disease, such as mild pulmonic stenosis or repaired ventricular septal defect. The majority, however, such as those with cyanotic congenital heart disease, have lesions of greater complexity. The growing population of adults with congenital heart disease presents unique problems in management. Arrhythmias are frequent and are often of serious import. Pregnancy presents special problems. The risk of infective en- docarditis and premature ventricular dysfunction may occur in patients even following successful correction. There is a delicate interplay between manag- ing the usual risks for the development of coronary artery disease in adults and the residua of repaired congenital heart disease, such as coarctation of the aorta. During the past two decades the approach to the diagnosis and treatment of adults with congenital heart disease has been totally transformed. For many years the catheterization laboratory was the site of diagnosis while the oper- ating room the site of treatment. Now, the imaging laboratory is the primary diagnostic site and increasingly invasive treatment is carried out in the cath- eterization laboratory. Ideally, adults with congenital heart disease should be cared for at regional adult congenital heart disease centers, staffed by cardiologists trained in both pediatric and adult cardiology, who are trained in the special problems present- ed by these patients. Regional centers alone, however, cannot do the whole job. Cardiologists not specifi cally trained to care for patients with congenital heart disease, other physicians and allied health professionals outside these regional centers are required to participate in the care of these patients. Adult Congenital Heart Disease: A Practical Guide by Gatzoulis, Swan, Therrien and Pantely will be a valued resource to these practitioners. This guide describes the various forms of congenital heart disease in suffi cient detail to allow the practitioner to diagnose and manage most of their problems, yet it is not the encyclopedic text required by the subspecialist and often overwhelming to the non-specialist. The sections on general principles, including pregnancy, contraception, infec- tive endocarditis, anticoagulation, arrhythmias, syncope, heart failure and the care of the cyanosed patient, are particularly well written. There has been fear that the adult with congenital heart disease could fall between the cracks and become a medical orphan. Adult Congenital Heart Dis- ease: A Practical Guide will become an important educational resource to help diminish this fear. Eugene Braunwald, MD Boston, MA, USA ix Preface Congenital heart disease with an approximate incidence of 1% is the most com- mon inborn defect, which used to carry a very poor prognosis. Advances in di- agnosis and management of patients with congenital heart disease over the latter part of the 20th century, however, have led to the majority of such patients sur- viving to adulthood. There are currently hundreds of thousands of individuals around the world who either have survived life-saving childhood surgery or are diagnosed with congenital heart disease in later life—often during pregnancy. Most of these patients have ongoing lifelong congenital heart and other medi- cal needs. They are regularly seen by their family physicians and, increasingly, by offi ce and hospital specialists, presenting both a signifi cant workload and a management challenge. While patients with congenital heart disease represent, therefore, a common challenge to health care, there has been and continues to be a marked shortfall in training programs and in resource allocation to provide for them. It is the aim of this smaller textbook to introduce this important subject to a larger audience, namely general physicians, non-congenital heart specialists, health allied professionals and trainees, all of whom are now involved with the care of the congenital heart patient. Our main focus has been to introduce general principles in recognizing the problem, discuss management of com- mon lesions and provide essential information on dealing with emergencies. Our ultimate goal was to familiarize the various disciplines involved with this important subject and facilitate appropriate and timely specialist referral of the congenital heart patient. Knowledge is power, and it is hoped that better informed health professionals (and patients) will improve further the longer- term prospects of what is considered to be one of the most successful endeavors of modern medicine. Michael A. Gatzoulis Lorna Swan Judith Therrien George A. Pantely x Acknowledgments The authors are deeply indebted to their colleagues Professor Philip Steer for the pregnancy and contraception chapter, Professor Leon Gerlis for his morphologic drawings, Drs Philip Kilner, Wei Li and Yen Ho for their cardiac MRI, echocar- diographic and morphologic specimens, Drs Jack Colman, Erwin Oechslin and Dylan Taylor for allowing us to use the congenital heart glossary, Dr Craig Brob- erg for the appendix on shunt calculations, and to Mary Banks, Nick Morgan, Tom Fryer and the BMJ Books/Blackwell team for their enthusiastic support throughout the project. Dr Gatzoulis and the Royal Brompton Adult Congenital Heart Program are supported by the British Heart Foundation.