Heart studies, chiefly clinical : I. The pulse-sensations: a study in tactile sphygmology / by Wm. Ewart.

  • Ewart, William, 1848-1929.
Date:
1894
Catalogue details

Licence: Public Domain Mark

Credit: Heart studies, chiefly clinical : I. The pulse-sensations: a study in tactile sphygmology / by Wm. Ewart. Source: Wellcome Collection.

Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.

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    CHAPTER III. THE REBOUND OF ARTERIAL WAVES OF BLOOD-PRESSURE. I. Von Kries' method applied to the circulation—On the sites of reflection of intra-arterial waves—The character and direction of the reflected arterial waves—The proofs of a peripheral reflection of arterial waves. II. Von Frey's demonstration of the theory of arterial rebounds—The pulse-wave and its reflection—(A) The primary rebound—The changes in pressure—Bearing of these data on the arterial pulse—(B) The secondaiy rebounds—The rebounds in the hving arterial system Pp. 203-215 CHAPTER IV. THE PULSE-WAVE STUDIED IN THE PULSE-TRACING. The sphygmograph: its aims and its limits—The sphygmogram—Its inter- pretation—(A) Roy and Adami's views—The mode of production of the several events—The time, size, and rapidity of the upstroke— The sphygmographic characters of the pulse of high tension as seen in the downstroke—The sphygmogram not an obvious record of the medium arterial pressure—(B) Von Frey's views—The influ- ence of the attendant circumstances on the pulse-wave—The vari- ability of the arterial tracing Pp. 216-224 CHAPTER Y. VON KRIES' ANALYSIS OF THE PULSE-TRACING. Preliminary remarks on the peripheral rebound—A peripheral rebound obtainable in the arteries of dead animals—Hiirthle's comparative study of central and peripheral pulse-tracings—The wave-rebounds at the entrance of the medium-sized and small arteries, and of the capillaries, are not of the negative kind—The slow descent of the down-stroke is due to wave-rebound—The wave-rebound in its rela- tions to arterial distribution—The predicrotic waves—Hi<^h tensions of peripheral origin Pj,_ oox oq,. CHAPTER VI. VON KRIES ON SOME ARTIFICIAL OR EXPERIMENTALLY PRODUCED MODIFICATIONS OF THE PULSE-TRACING. I. The changes in the pulse due to raising the am-Why is the systolic wave slowed in the raised arm ? II. Modifications due to the application of cold 0^ oj loarmth to the arm. III. Modifications resulting from changes induced in distant vascular districts . . Pp. 231-235 h