History and evolution of pacing and devices.

Cardiac implanted electronic devices are commonplace in the modern practice of cardiology. This article reviews the history of the development of these technologies, with particular reference to the role played by UK physicians and members of the British Cardiovascular Society. Key breakthroughs in the treatment of heart block, ventricular arrhythmia and heart failure are presented in their historical and contemporary context so that the reader might look back on the incredible progress and achievements of the last 100 years and also look forward to what may be achieved in the coming decades.