Electrocardiography: Modern Trends in Instrumentation and Visual and Direct Recording Electrocardiography

Article1 April 1950ELECTROCARDIOGRAPHY: MODERN TRENDS IN INSTRUMENTATION AND VISUAL AND DIRECT RECORDING ELECTROCARDIOGRAPHYF. LOWELL DUNN, M.D., F.A.C.P., WALTER E. RAHM JR.F. LOWELL DUNN, M.D., F.A.C.P., WALTER E. RAHM JR.Author, Article, and Disclosure Informationhttps://doi.org/10.7326/0003-4819-32-4-611 SectionsAboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinkedInRedditEmail ExcerptThomas Lewis in the introduction to his "Mechanism and Graphic Registration of the Heart Beat" emphasized that scientific advancement depends upon the development of suitable instrumentation.1In the pioneer days of Einthoven and Lewis the problem was to design and construct an instrument which would permit a study of what has become electrocardiography. Einthoven's contribution was to adapt the tight string instrument originated by Ader for submarine telegraphic purposes to the requirements of cardiac electrophysiology.2Einthoven pointed out the marked superiority of the new string galvanometer to the older capillary electrometer—the time saved in making records and the avoidance of...Bibliography1. Lewis T: Mechanism and graphic registration of the heart beat, 3rd Ed., 1925, Shaw and Sons, Ltd., London. Google Scholar2. Ader : Compt. rend. Acad. d. sc. (Paris) 124: 1440, 1897. Google Scholar3. Einthoven W: A new galvanometer, Arch. néerl. des Sc. et Nautrelles. Series 11, Tome VI Livre Jubilaire offert e La Societe Hollandaise des Science a Harlen par les Amis De J. Bosche. La Haye, Martinus Nijhoff, 1901, pages 625-633. Google Scholar4. Einthoven W: The galvanometric recording of the human electrocardiogram together with an evaluation of the limitations of the capillary electrometer in physiology, Pflüger's Arch. f. d. ges. Physiol. 99: 472, 1903. CrossrefGoogle Scholar5. Einthoven W: A new galvanometer, Ann. d. Phys. 12: 1059, 1903, Series 4 (and succeeding volumes). CrossrefGoogle Scholar6. Wiggers CJ: Principles and practice of electrocardiography, 1929, C. V. Mosby Co., St. Louis. Figures 11 and 12, page 64. Google Scholar7. Williams HB: The Einthoven string galvanometer, a theoretical and experimental study. Part I, Rev. Sci. Inst. 9: 129, 1924. Part II, J. Opt. Soc. America and Rev. Sci. Inst. 13: 313-382, 1926. Google Scholar8. ForbesThacher A: Amplification of action currents with the electron tube in recording with the string galvanometer, Am. J. Physiol. 52: 409-471, 1920. Gasser, H. S., and Newcomer, H. S.: Physiological action, currents in the phrenic nerve. An application of the thermionic vacuum tube to nerve physiology, Am. J. Physiol. 57: 1-26, 1921. Gasser, H. S., and Erlanger, J.: A study of the action currents of nerve with the cathode ray oscillograph, Am. J. Physiol. 62: 496, 1922. Hober, R.: Study on the demonstration of action current, Pfluger's Arch. f. d. ges. Physiol. 177: 305-312, 1919. CrossrefGoogle Scholar9. ForbesDavisEmerson AHJH: An amplifier string galvanometer and photographic camera designed for the study of action currents in nerve, Rev. Sci. Inst. 2: 1-15, 1931. CrossrefGoogle Scholar10. AsherHoecker GF: The lag-screen belt electrocardiogram, Am. Heart J. 16: 51, 1938. CrossrefGoogle Scholar11. BuckinghamDeibert WDCR: Characteristics and applications of concentrated arc lamps, J. Photographic Soc. Am. 12: 610-622, 1946. The concentrated arc lamp. A new type of light source. Engineering Bull. 38B, The Western Union Telegraph Co., 60 Hudson St., New York 13, N. Y. Google Scholar12. Johnston FD: Electrocardiography. Medical Physics, The Year Book Publishers, Chicago, Ill., 352-361. Google Scholar13. Ibid., page 34. Google Scholar This content is PDF only. To continue reading please click on the PDF icon. Author, Article, and Disclosure InformationAuthors: F. LOWELL DUNN, M.D., F.A.C.P.; WALTER E. RAHMJR.*Received for publication April 30, 1949.From the Departments of Medicine, and Physiology and Pharmacology of the University of Nebraska College of Medicine.The authors wish to express their appreciation for funds received from the Life Insurance Medical Research Fund. 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II. 1 April 1950Volume 32, Issue 4 Page: 611-626 Keywords Capillaries Cardiac electrophysiology Electrocardiography Electrode recording Heart Longitudinal studies Pharmacology Research funding ePublished: 1 December 2008 Issue Published: 1 April 1950 PDF downloadLoading ...