Since the first recording of the human electrical activity of the heart by Waller in 1887 1 and the invention of the electrocardiograph by Willem Einthoven in 1902 2 the recording of the electrocardiogram (ECG) has evolved into one of the most important noninvasive diagnostic techniques of today cardiology 3 In particular, the diagnosis of cardiac arrhythmias, myocardial ischemia and myocardial infarction depends on the use of routine ECG recordings. The development of continuous ECG recording techniques such as long term ambulatory ECG recording (Holter) made it also possible to document less frequently occurring cardiac arrhythmias or ischemic events occurring during daily life.

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Netherlands Heart Foundation
M.L. Simoons (Maarten)
Erasmus University Rotterdam , Eburon, Delft
Erasmus MC: University Medical Center Rotterdam

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