Heart studies, chiefly clinical. 1, The pulse-sensations : a study in tactile sphygmology / by Wm. Ewart.

  • William Ewart
Date:
1894
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Licence: Public Domain Mark

Credit: Heart studies, chiefly clinical. 1, The pulse-sensations : a study in tactile sphygmology / by Wm. Ewart. Source: Wellcome Collection.

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    CHAPTER XIII. von frey's criticism of the cardiography method. Variability of the tracings and limitations of the cardiograph—It does not indicate the movements of aortic closure, nor of aortic opening— The aortic pulse-'racing—The oscillations of velocity at the root of the aorta Pp- 275-281 CHAPTER XIV. THE INTRA-CARDIAL PRESSURES. The intra-auricular pressure—The intra-venlricular pressure curve as inter- preted by Boy and Adami—The variations in arterial blood-pressure and their effects on heart and arteries—Effects of a rising pressure on the ventricular cavity, contraction, and internal pressure—Its effects on the arteries—The effects of low blood-pressures on the ventricular contraction—The intra-ventricular pressure curve inter' preted by von Frey—Its negative phase—The mechanism of ventri- cular expansion . Pp. 282-291 PART V. FURTHER TACTILE STUDIES. CHAPTER I. GENERAL NOTIONS CONCERNING THE NATURAL OR SPONTANEOUS ICTUS, AND THE MODIFIED OR ARTIFICIAL ICTUS. The natural or spontaneous ictus—The ictus and the pulse-wave—The artificial ictus—The three varieties of the artificial ictus—The general resemblance between the natural and the intermediate ictus Pp. 293-297 CHAPTER II. THE DISTAL ICTUS. Its mechanism—Confirmatory proofs of the rebound . . Pp. 298-303 CHAPTER III. THE PROXIMAL ICTUS. The phase of the pialse-wave corresponding to the proximal ictus—The retound-wave in relation to the proximal ictus—Conclusions Pp. 301-308