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This cannot be viewed as a mere second edition of the volume of Wenckebach published in 1914. It is essentially a new work, a complete rewriting three times the size of the earlier book. This is due to the fact that the enormous amount of knowledge concerning cardiac irregularities that has accumulated since 1914 had to be included. Also, subjects are here discussed more thoroughly and with fuller consideration of controversial points. The revision has resulted in a certain loss of charm in the reading of the text that was present in the more intimate and informal page when Wenckebach wrote alone. The more comprehensive and encyclopedic character of the volume naturally increases its value as a book of reference. There are discussed the various types of extrasystole, paroxysmal tachycardia, block, flutter, fibrillation, pulsus alternans, and pulsus paradoxus. Ninety pages are devoted to a consideration of the polygraph and the
Die unregelmässige Herztätigkeit.. JAMA. 1927;89(18):1539. doi:10.1001/jama.1927.02690180071039