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A long philosophical introduction that places electrocardiography in its proper perspective among the cardiological diagnostic techniques makes for enjoyable reading of this primer right from the beginning.
The analogy of the lead systems used to investigate the electrophysiology of the heart to blind men observing an elephant inside a box is quite appropriate.
A brief history of electrocardiography and an introduction into anatomy, physiology, and electrophysiology precede chapters on the normal electrocardiogram, arrhythmias, atrioventricular and intraventricular conduction defects, muscle injury and death, and atrial and ventricular enlargement.
Clearly, the emphasis is on presenting concepts in a simplified but up-to-date manner.
Introduction to Electrocardiography.. Ann Intern Med. 1972;77:667. doi: https://doi.org/10.7326/0003-4819-77-4-667_3
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Published: Ann Intern Med. 1972;77(4):667.
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