File:Clinical disorders of the heart beat - a handbook for practitioners and students (1916) (14760795354).jpg

Identifier: clinicaldisorder1916lewi (find matches)
Title: Clinical disorders of the heart beat : a handbook for practitioners and students
Year: 1916 (1910s)
Authors: Lewis, Thomas, Sir, 1881-1945
Subjects: Arrhythmia Arrhythmias, Cardiac
Publisher: New York : P.B. Hoeber
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

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Auricular Fibrillation. 89
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90 Chapter VII. of beats of many sizes (Fig. 45), an intimate mingling ofchanging pauses ; now the beats are almost uniform instrength and spacing ; now feeble pulsations chase alongrapidly ; now the pulse is lost ; now it returns with increasedvigour. Feel the pulse and the mechanism is apparent;the more the disorder, the more certain the evidence. It iswhen the rate is slow that close attention and more experienceare often asked, for with slower rate the disorder is lesspronounced ; all the heart beats now reach the wrist and theirregularity comprises minor variations in the length ofpause (as in Fig. 48) ; in such instances it escapes notice, anda heedful examination, concentrated upon its presence orabsence, alone brings it to discovery. Short pulse curvesreveal the irregularity on all but rare occasions. The natureof the arrhythmia is such that the heart action is never quiteregular, and seldom do two beats of a precisely equal characteror length lie adjacent. No two whole strips

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