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November 3, 1923

A Key to the Electrocardiogram.

JAMA. 1923;81(18):1551. doi:10.1001/jama.1923.02650180069037

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This book offers a simple description of the subject of electrocardiography and its clinical application, together with a brief account of the more common irregularities of the heart beat. It is well printed in large, clear type and the subject matter is well arranged. The electrocardiographic curves are well taken and clearly presented, their interpretation coinciding for the most part with accepted clinical teaching. The author emphasizes that electrocardiography should be part of a complete examination of a cardiac patient, but in certain chapters gives the impression of reading more value into the curves than they actually possess. Likewise, one feels that such statements as: "Auricular fibrillation... indicates a profound disturbance" (p. 16); "One is always in danger of giving too much digitalis without these tracings" (p. 76); "When the electric picture of the heart is carefully studied, all these things become perfectly clear," and "In the electrocardiogram therefore the

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