CONTENTS -- ILLUSTRATIONS AND TABLES -- ACKNOWLEDGMENTS -- INTRODUCTION -- Chapter 1 HEART BLOCK AND THE HEART TICKLER -- Chapter 2 THE WAR ON HEART DISEASE AND THE INVENTION OF CARDIAC PACING -- Chapter 3 HEART SURGEONS REDEFINE CARDIAC PACING -- Chapter 4 THE MULTIPLE INVENTION OF IMPLANTABLE PACEMAKERS -- Chapter 5 MAKING THE PACEMAKER SAFE AND RELIABLE -- Chapter 6 THE INDUSTRIALIZATION OF THE PACEMAKER -- Chapter 7 THE PACEMAKER BECOMES A FLEXIBLE MACHINE -- Chapter 8 SLOWING THE PACE: THE INDUSTRY'S TIME OF TROUBLES -- Chapter 9 COMPETITION THROUGH INNOVATION: ACCELERATING THE PACE OF CHANGE -- Chapter 10 PREVENTING SUDDEN CARDIAC DEATH: THE IMPLANTABLE DEFIBRILLATOR -- Chapter 11 THE 1990S AND BEYOND: ''WHEN LIFE DEPENDS ON MEDICAL TECHNOLOGY'' -- APPENDIX A DEVICE RELIABILITY, QUALIFICATION TESTS, AND IMPROVEMENTS -- APPENDIX B NUMBER OF IMPLANTATIONS -- APPENDIX C ICHD PACEMAKER IDENTIFICATION CODE -- ABBREVIATIONS -- NOTES -- BIBLIOGRAPHICAL NOTE -- INDEX.