Der normale Verlauf der Erregungsausbreitung und ihr Ausdruck im Frankschen Vektorkardiogramm

  • Paul Lichtlen

Zusammenfassung

Die Kenntnis des normalen Ablaufes der Erregungsausbreitung im menschlichen Herzen ist zum Verständnis des Vektorkardiogrammes absolut unerläßlich. Nur durch die ständige Vergegenwärtigung des normalen Depolarisationsprozesses ist eine fundierte Beurteilung der pathologischen Aktivation in der täglichen Praxis möglich. Die heutigen Vorstellungen der normalen Depolarisation basieren vorwiegend auf experimentellen Untersuchungen am Hundeherzen (Lewis, 1915; Burchell, 1951, 1952, 1957; Sodi-Pallares, 1951, 1956, 1960; Me-Drano, 1957; Schäfer, 1957; Scher, 1957, 1962; Amer, 1960; Wyss, 1963; Durrer, 1964) Sie lassen sich jedoch nicht ohne weiteres auf das menschliche Herz übertragen, sondern müssen mit den durch vergleichende elektro- und vektorkardiographische Untersuchungen des normalen mit dem pathologischen Depolarisationsablauf am menschlichen Herzen gewonnenen Erkenntnissen zur Synthese gebracht werden.

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Literatur

  1. Abel, H.: Das orthogonale Elektrokardiogramm. Arch. Kreisl.-Forsch. 37, 168 (1962).CrossRefGoogle Scholar
  2. Amer, N. S., J. H. Stucky, B. F. Hoffman, R. R. Cappeletti, and R. T. Domingo: Activation of the interventricular septal myocardium studied during cardiopulmonary bypass. Amer. Heart J. 59, 224 (1960).PubMedCrossRefGoogle Scholar
  3. Ashman, R., E. Byer, and R. H. Bayley: The normal human ventricular gradient. I. Factors which affect its direction and its relation to the mean QRS-axis. Amer. Heart J. 25, 16 (1943).CrossRefGoogle Scholar
  4. Benjamin, J. M., H. Schwan, C. F. Kay, and J. H. Hafkenschiel: The electrical conductivity of living tissues as it pertains to electrocardiography. Circulation 2, 321 (1950).PubMedGoogle Scholar
  5. Böckh, E. M., u. H. Schäfer: Weitere Untersuchungen über die Konstruierbarkeit von EKG-Vektoren aus Brustwandableitungen. Cardiologia (Basel) 23, 191 (1953).Google Scholar
  6. Brineau, J. P., M. S. Spach, and C. R. Ayers: Time- normalized correlation of ventricular activation and the vectorcardiogram. Amer. Heart J. 73, 64 (1967).CrossRefGoogle Scholar
  7. Brody, D. A.: The meaning of lead vectors and the Burger triangle. Amer. Heart J. 48, 730 (1954).PubMedCrossRefGoogle Scholar
  8. Brody, D. A., and R. C. Arzbaecher: A comparative analysis of several corrected vectorcardiographic leads. Circulation 29, 533 (1964).PubMedGoogle Scholar
  9. Brody, D. A., and G. D. Copeland: Electrocardiographic cancellations: Some observations concerning the “nondipolar” fraction of precordial electrocardiogram. Amer. Heart J. 56, 381 (1958).PubMedCrossRefGoogle Scholar
  10. Burchell, H. B.: Current problems of excitation. Ann. N.Y. Acad. Sci. 65, 741 (1957).PubMedCrossRefGoogle Scholar
  11. Burchell, H. B., H. E. Essex, and R. D. Pruitt: Studies on the spread of excitation through the ventricular myocardium. II. The ventricular septum. Circulation 6, 161 (1952).PubMedGoogle Scholar
  12. Burchell, H. B., R. D. Pruitt, and H. E. Essex: Excitation of the isolated ventricular septum of the heart. Proc. Soc. exp. Biol. (N.Y.) 77, 117 (1951).Google Scholar
  13. Burger, H. C.: Lead vector projections. I. Ann. N.Y. Acad. Sci. 65, 1076 (1957)CrossRefGoogle Scholar
  14. Burchell, H. B., and J. B. Milaan: Heart-vector leads. Brit. Heart J. 8, 157 (1946)CrossRefGoogle Scholar
  15. Burchell, H. B., and J. B. Milaan: Heart-vector leads. Brit. Heart J. 9, 154 (1947)CrossRefGoogle Scholar
  16. Burchell, H. B., and J. B. Milaan: Heart-vector leads. Brit. Heart J. 10, 229 (1948).CrossRefGoogle Scholar
  17. Burchell, H. B., and J. B. Milaan, and W. Boer: Comparison of different systems of vectorcardiography. Brit. Heart J. 14, 401 (1952).CrossRefGoogle Scholar
  18. Burchell, H. B., and J. B. Milaan, and W. Klip: Comparison of three different systems of vectorcardiography. Amer. Heart J. 57, 723 (1959).CrossRefGoogle Scholar
  19. Burchell, H. B., and J. P. Vaane: A criterion characterizing the orientation of vectorcardiograms in space. Amer. Heart J. 56, 29 (1958).CrossRefGoogle Scholar
  20. Craib, W. H., and A. Cranefield: A study of the electrical field surrounding active heart muscle. Heart 14, 71 (1927).Google Scholar
  21. Duchosal, P. W., et R. Sulzer: La vectorcardiographic. Methode d’exploration du champ electri- que cree dans le corps humain par les courants d’action du coeur dans les conditions normales et pathologiques. Bibl. cardiol. (Basel) 3 (1949).Google Scholar
  22. Duchosal, P. W., R. Veyrat et O. A. M. Wyss: Composantes globales et focales de I’electrocardiogramme recueilli en derivation unipolaire ä la surface du coeur isole. Helv. physiol. pharmacol. Acta 10, C50-C51 (1952).PubMedGoogle Scholar
  23. Einthoven, W.: Über die Form des menschlichen Elektrokardiogramms. Pflügers Arch. ges. Physiol. 60, 91 (1895).CrossRefGoogle Scholar
  24. Einthoven, W.: Die galvanometrische Registrierung des menschlichen Elektrokardiogramms, zugleich eine Beurteilung der Anwendung des Kapillar-Elektrometers in der Physiologie. Pflügers Arch. ges. Physiol. 99, 472 (1903).CrossRefGoogle Scholar
  25. Einthoven, W.: Weiteres über das Elektrokardiogramm. Pflügers Arch. ges. Physiol. 122, 517 (1908).CrossRefGoogle Scholar
  26. Einthoven, W., G. Fahr u. A. de Waart: Über die Richtung und die manifeste Größe der Potentialschwankungen im menschlichen Herzen und über den Einfluß der Herzlage auf die Form des Elektrokardiogramms. Pflügers Arch. ges. Physiol. 150, 275 (1913).CrossRefGoogle Scholar
  27. Elliot, R. S., W. A. Millhon, and J. Millhon: The clinical significance of uncomplicated marked left axis deviation in men without known disease. Amer. J. Cardiol. 12, 767 (1963).CrossRefGoogle Scholar
  28. Fahr, G., u. A. Weber: Über die Ortsbestimmung der Erregung im menschlichen Herzen mit Hilfe der Elektrokardiographie. Dtsch. Arch. klin. Med. 117, 361 (1915).Google Scholar
  29. Fleckenstein, A.: Physiologie und Pathophysiologic des Myokardstoffwechsels im Zusammenhang mit den bioelektrischen und mechanischen Fundamentalprozessen. In: Das Herz des Menschen (Hrsg. W. Bargmann u. W. Doerr), Bd. I, S. 379. Stuttgart: Georg Thieme 1963.Google Scholar
  30. Frank, E.: A comparative analysis of the eccentric double layer representation of the human heart. Amer. Heart J. 46, 364 (1953).PubMedCrossRefGoogle Scholar
  31. Frank, E.: The elements of electrocardiographic theory. Transactions of the Amer. Institute of Electrical Engineers 1953.Google Scholar
  32. Frank, E.: An equivalent circuit for the human heart-body electrical system. Amer. Heart J. 48, 738 (1954).PubMedCrossRefGoogle Scholar
  33. Frank, E.: General theory of heart-vector projection. Circuit. Res. 9, 258 (1954).Google Scholar
  34. Frank, E.: Determination of the electrical center of ventricular depolarization in the human heart. Amer. Heart J. 49, 670 (1955).PubMedCrossRefGoogle Scholar
  35. Frank, E.: Measurement and significance of cancellation potentials on the human subject. Circulation 11, 937 (1955).PubMedGoogle Scholar
  36. Frank, E.: Absolute quantitative comparison of instantaneous QRS equipotentials on a normal subject with dipole potentials on a homogenous torso model. Circulat. Res. 3, 243 (1955).PubMedGoogle Scholar
  37. Frank, E.: An accurate, clinically practical system for spatial vectorcardiography. Circulation 13, 737 (1956).PubMedGoogle Scholar
  38. Frank, E.: Spread of current in volume conducters of significant extent. Ann. N.Y. Acad. Sci. 65, 980 (1957).PubMedCrossRefGoogle Scholar
  39. Frank, E., and C. F. Kay: A reference potential for unipolar electrocardiographic measurements on models. Amer. Heart J. 46, 195 (1953).PubMedCrossRefGoogle Scholar
  40. Frank, E., and C. F. Kay: Frontal plane studies on homogenous torso models. Circulat. Res. 9, 724 (1954).Google Scholar
  41. Frank, E., and C. F. Kay., G. E. Seiden, and R. A. Keisman: A new quantitative basis for electrocardiographic theory: The normal QRS complex. Circulation 12, 406 (1955).PubMedGoogle Scholar
  42. Galvani, L.: De viribus electricitatis in motu muscu- lari comentarius. De Bonomiensi Scientiarum et Artium Instituto at que Academia comentarii 7, 363 (1791).Google Scholar
  43. Hartmann, I., R. Veyrat, O. A. M. Wyss et P. W. Duchosal: Comparaison vectorielle des électro- cardiogrammes unipolaires recueillis en deux points d’un plan transversal, équidistant du centre et opposés par rapport au coeur. Cardiologia (Basel) 15, 187 (1950).Google Scholar
  44. Hartmann, I., R. Veyrat, O. A. M. Wyss et P. W. Duchosal: Vectorcardiography as studied on the isolated mammalian heart suspended in a homogenous volume conductor. Cardiologia (Basel) 27, 129 (1955).Google Scholar
  45. Hartmann, I., u. O. A. M. Wyss: Vektorkardiographischer Nachweis des Partialabgriffes am isolierten Säugetierherzen. Ber. ges. Physiol. 172, 128 (1954).Google Scholar
  46. Hecht, H. H.: Some observations and the theories concerning the electrical behavior of the heart muscle. Amer. J. Med. 30, 720 (1961).PubMedCrossRefGoogle Scholar
  47. Heckekt, E. W., W. R. Cook, and S. Krause: The clinical value of vectorcardiography. Amer. J. Cardiol. 7, 657 (1961).CrossRefGoogle Scholar
  48. Hellerstein, H. K., D. Shaw, and T. Sano: Dissection of the vectorcardiogram: Differential vectorcardiography. Amer. Heart J. 47, 887 (1954).PubMedCrossRefGoogle Scholar
  49. Helm, R. A.: Vectorcardiographic notation. Circulation 13, 581 (1956).PubMedGoogle Scholar
  50. Helmholtz, H.: Über einige Gesetze der Verteilung elektrischer Ströme in körperlichen Leitern mit Anwendung auf die tierisch-elektrischen Versuche. Ann. Phys. u. Chem. 89, 211, 253 (1853).Google Scholar
  51. Hollmann, H. E., u. W. Hollmann: Das Einthoven- sche Dreiecks-Schema als Grundlage neuer elektro- kardiographischer Registriermethoden. Z. Kreisl- Forsch. 134, 732 (1938).Google Scholar
  52. Hopff, L., A. K. Huber u. O. A. M. Wyss: Studien zur Vektorkardiographie. III. Der Nachweis des Proximitätseffektes der vorderen Brustwandelektroden beim Menschen. Arch. Kreisl.-Forsch. 40, 236 (1963).CrossRefGoogle Scholar
  53. Hopff, L., u. O. A. M. Wyss: Studien zur Vektorkardiographie. II. Das transversale Pianogramm des Menschen. Arch. Kreisl.-Forsch. 39, 63 (1962).CrossRefGoogle Scholar
  54. Huber, A.: Vektorkardiographischer Nachweis des Partialabgriffes am menschlichen Herzen. Pflügers Arch. ges. Physiol. 270, 36 (1959).CrossRefGoogle Scholar
  55. Hupka, K., u. R. Wenger: Ein Beitrag zur Frage der vektorkardiographischen Ableitungsmethodik. Z. Kreisl.-Forsch. 47, 1030 (1958).Google Scholar
  56. Katsumi, K., E. Simonson, and O. H. Schmitt: Relationship between the position of chest electrodes (Frank and SVEC III-systems) and the anatomic position of the heart. Amer. Heart J. 74, 58 (1967).CrossRefGoogle Scholar
  57. Katz, L. N.: The genesis of the electrocardiogram. Physiol. Rev. 27, 398 (1947).PubMedGoogle Scholar
  58. Kossmann, C. E., A. R. Berger, B. Rader, J. Brum-lik, S. A. Briller, and J. H. Donnelly: Intracardiac and intravascular potentials resulting from electrical activity of the human heart. Circulation 2, 10 (1950).PubMedGoogle Scholar
  59. Levine, R. B., O. H. Schmitt, and B. Simonson: Electrocardiographic mirror pattern studies. II. The statistical and individual validity of the heart dipole concept as applied in electrocardiographic analysis. Amer. Heart J. 45, 500 (1953).PubMedCrossRefGoogle Scholar
  60. Lewis, T.: The mechanism and graphic registration of the heart beat, 3rd ed. London: Shaw 1925.Google Scholar
  61. Lewis, T., and M. A. Rotschild: The excitatory process in the dog’s heart. Part II. The ventricles. Phil. Trans. B 206, 181 (1915).CrossRefGoogle Scholar
  62. Mann, H.: A method of analysing the electrocardiogram. Arch, intern. Med. 25, 283 (1920).CrossRefGoogle Scholar
  63. Mann, H.: The monocardiograph. Amer. Heart J. 15, 681 (1938).CrossRefGoogle Scholar
  64. Massumi, R. A., A. Goldman, L. Rahita, K. Kusamoto, and M. Prinzmetal: Studies on the mechanisms of ventricular activity. XVI. Activation of the human ventricle. Amer. J. Med. 19, 838 (1955).CrossRefGoogle Scholar
  65. McFee, R., and A. Parungao: An orthogonal lead system for clinical electrocardiography. Amer, Heart J. 62, 93 (1961).CrossRefGoogle Scholar
  66. Milnor, W. R., S. A. Talbott, and E. V. Newman: A study of the relationship between unipolar leads and spatial vectorcardiograms, using the panoramic vectorcardiograph. Circulation 7, 545 (1953).PubMedGoogle Scholar
  67. Moore, S. R., and P. H. Laugner: Location of the electrical center of ventricular depolarization. Amer. Heart J. 51, 405 (1956).PubMedCrossRefGoogle Scholar
  68. Morton, R. F., W. E. Romans, and D. A. Brody: Cancellation of esophageal electrocardiograms. Circulation 15, 897 (1957).PubMedGoogle Scholar
  69. Müller-Büchele, S., L. Hopfe u. O. A. M. Wyss: Studien zur Vektorkardiographie. IV. Frontales und sagittales Pianogramm des Menschen. Arch. Kreisl.-Forsch. 41, 212 (1963).CrossRefGoogle Scholar
  70. Okada, R. H.: An experimental study of multiple dipole potentials and the effects of inhomogeneities in volume conductors. Amer. Heart J. 54, 567 (1957).CrossRefGoogle Scholar
  71. Penaloza, D., and J. Tranchesi: The three main vectors of the ventricular activation process in the normal human heart. I. Its significance. Amer. Heart J. 49, 51 (1955).PubMedCrossRefGoogle Scholar
  72. Pipberger, H. V.: Evaluation of quantitative methods for obtaining mean spatial QRS vectors. Circulation 16, 926 (1957).Google Scholar
  73. Pipberger, H. V.: Die Bedeutung der orthogonalen Elektrokardiographie und Vektorkardiographie für die klinische Kardiologie. Arch. Kreisl.-Forsch. 29, 58 (1958).CrossRefGoogle Scholar
  74. Pipberger, H. V.: Current status and persistent problems of electrode placements and lead systems for vectorcardiography and electrocardiography. Progr. cardio- vasc. Dis. 2, 248 (1959).CrossRefGoogle Scholar
  75. Pipberger, H. V., S. M. Bialeck, J. K. Perloff, and H. W. Schnaper: Correlation of clinical information in the standard 12-lead electrocardiogram and in a corrected orthogonal 3-lead electrocardiogram. Amer. Heart J. 61, 34 (1961).PubMedCrossRefGoogle Scholar
  76. Pipberger, H. V., and Th. N. Carter: Analysis of the normal and abnormal vectorcardiogram in its own reference frame. Circulation 25, 827 (1962).PubMedGoogle Scholar
  77. Pipberger, H. V., and L. S. Lilienfeld: Application of corrected electrocardiographic lead system in man. Amer. J. Med. 25, 539 (1958).PubMedCrossRefGoogle Scholar
  78. Pipberger, H. V., F. W. Stallmann, Y. Katsuhiko, and H. W. Draper: Digital computer analysis of the normal and abnormal electrocardiogram. Progr. cardiovase. Dis. 5, 378 (1963).CrossRefGoogle Scholar
  79. Portheine, H.: Fortschritte in der kardiologischen Diagnostik durch vektorkardiographische Analysen der elektrischen Tätigkeit des Herzens. Arch. Kreisl.-Forsch. 37, 237 (1962).CrossRefGoogle Scholar
  80. Pipberger, H. V., u. J. H. Mohr: Über die Geschwindigkeit der Erregungsableitung im menschlichen Herzen. Z. Kreisl.-Forsch. 54, 1229 (1965).Google Scholar
  81. Report of Committee on electrocardiography. American Heart Association. Recommendations for standardization of leads and of specification for instruments in electrocardiography and vectorcardiography. Circulation 35, 583 (1967).Google Scholar
  82. Rijilan, P.: L’electrogenese globale du coeur chez I’homme. Electrocardiographic vectorielle et vectorcardiographic. Acta cardiol. (Brüx.) 13, 349 (1955).Google Scholar
  83. Savjoloff, V. V.: Methode der stereometrischen Elektrokardiographie. Z. Kreisl.-Forsch. 21, 705 (1929).Google Scholar
  84. Schäfer, H.: Die theoretischen Grundlagen des Elektrokardiogramms. Verh. dtsch. Ges. Kreisl.- Forsch. 18, 11 (1952).Google Scholar
  85. Schäfer, H.: Zur Gültigkeit der Vektortheorie des EKG und über Inhalt und Wert des elektrischen Herzbildes. Münch, med. Wschr. 96, 951 (1954).Google Scholar
  86. Schäfer, H.: Zur Vektortheorie des EKG. Zur Funktionselektro- kardiographie Kienles und zum elektrischen Herzbild. Dtsch. med. Wschr. 80, 11 (1955).CrossRefGoogle Scholar
  87. Schäfer, H.: General order of excitation and of recovery. Ann. N.Y. Acad. Sci. 65, 743 (1957).CrossRefGoogle Scholar
  88. Schäfer, H., u. W. Gärtner: Über die absolute Größe elektro- kardiographischer Potentiale. Pflügers Arch. ges. Physiol. 255, 251 (1952).CrossRefGoogle Scholar
  89. Schaffer, A. I.: The body as a volume conductor in electrocardiography. Amer. Heart J. 51,588 (1956).PubMedCrossRefGoogle Scholar
  90. Schellong, F., S. Heller u. E. Schwingel: Das Vektorkardiogramm. Eine Untersuchungsmethode des Herzens. I. Mitt. Z. Kreisl.-Forsch. 29, 497 (1937).Google Scholar
  91. Scher, A. M.: Excitation of the heart. In: Handbook of physiology. Section 2: Circulation, vol. I (ed. W. F. Hamilton and P. Dow), p. 287. Baltimore: Williams & Wilkins Co. 1962.Google Scholar
  92. Scher, A. M., and A. C. Young: Spread of excitation during premature ventricular systoles. Circulat. Res. 3, 535 (1955).PubMedGoogle Scholar
  93. Scher, A. M., and A. C. Young: The pathway of ventricular depolarisation in the dog. Circulat. Res. 4, 461 (1956).PubMedGoogle Scholar
  94. Scher, A. M., and A. C. Young: Ventricular depolarization and the genesis of QRS. Ann. N.Y. Acad. Sci. 65, 768 (1957).PubMedCrossRefGoogle Scholar
  95. Scher, A. M., and A. C. Young, A. L. Malmgren, and R. N. Erickson: Activation of the interventricular septum. Circulat. Res. 3, 56 (1956).Google Scholar
  96. Scher, A. M., and A. C. Young, A. L. Malmgren, and R. R. Paton: Spread of electrical activity through the wall of the ventricle. Circulat. Res. 1, 539 (1953).PubMedGoogle Scholar
  97. Schmitt, O. H., R. B. Levine, and E. Simonson: Electrocardiographic mirror pattern studies. I. Experimental validity tests of the dipole hypothesis and of the central terminal theory. Amer. Heart J. 45, 416 (1953).PubMedCrossRefGoogle Scholar
  98. Schmitt, O. H., and E. Simonson: The present status of vectorcardiography. Arch, intern. Med. 96, 574 (1955).CrossRefGoogle Scholar
  99. Seiden, G. E.: Anatomic location of the electric heart center in patients. Circulat. Res. 4, 313 (1956).PubMedGoogle Scholar
  100. Schmitt, O. H., and R. A. Keisman: Cancellation of the abnormal QRS complex of heart disease. Amer. Heart J. 52, 62 (1956).CrossRefGoogle Scholar
  101. Simonson, E., O. H. Schmitt, R. B. Levine, and J. Dahl: Electrocardiographic mirror pattern studies. III. Mirror pattern cancellation in normal and abnormal subjects. Amer. Heart J. 45, 655 (1953).PubMedCrossRefGoogle Scholar
  102. Simonson, E., O. H. Schmitt, and H. Nakagawa: Quantitative comparison of eight vectorcardiographic lead systems. Circulat. Res. 7, 296 (1959).PubMedGoogle Scholar
  103. N. Tuna, N. Okamoto, and H. Toshima: Diagnostic accuracy of the vectorcardiogram and electrocardiogram. A cooperative study. Amer. J. Cardiol. 6, 829 (1966).Google Scholar
  104. Sodi-Pallares, D., A. Bisteni, G. A. Medrano, and C. Ayala: Electrocardiography and vectorcardiography. In: B. L. Gordon, ed.. Clinical cardiopulmonary physiology, ed. 2. New York: Grune & Stratton Inc. 1960.Google Scholar
  105. Sodi-Pallares, D., M. J. Rodriguez, L. O. Chait, and R. Zucker-man: The activation of the interventricular septum. Amer. Heart J. 41, 569 (1951).PubMedCrossRefGoogle Scholar
  106. Soffe, A. M., J. L. Richman, and L. Wolff: Comparative value of electrocardiographic and vectorcardiographic diagnosis: Pathological correlation. Acta cardiol. (Brüx.) 9, 667 (1954).Google Scholar
  107. Spahr-Hartmann, I., u. O. A. Wyss: Studien zur Vektorkardiographie. I. Vektorkardiographische Darstellung des Partialabgriffes am freischlagenden, im homogenen Volumenleiter suspendierten Säugetierherzen. Arch. Kreisl.-Forsch. 37, 299 (1962).CrossRefGoogle Scholar
  108. Stallmann, F.: Über die Ableittheorie des Elektrokardiogramms. Arch. Kreisl.-Forsch. 25, 291 (1957).CrossRefGoogle Scholar
  109. Sulzer, R.: L’electrogramme à deux dimensions du battement et de la fibrillation ventriculaire du coeur de lapin. Arch. int. Physiol. 43, 82 (1936).CrossRefGoogle Scholar
  110. Tannenbaum, O., H. Vessell, and J. A. Schack: A simple corrected orthogonal lead system of electrocardiography: Correlation with the conventional twelve lead electrocardiogram and clinical information. Amer. Heart J. 65, 349 (1963).PubMedCrossRefGoogle Scholar
  111. Veyrat, R.: La composition des potentials électriques recueillis en dérivation unipolaire à la surface du coeur. Helv. physiol. pharmacol. Acta 11, 395 (1953).PubMedGoogle Scholar
  112. Wenger, R.: Fortschritte und Möglichkeiten der Vektorkardiographie. Z. Kreisl.-Forsch. 47, 1037 (1958).Google Scholar
  113. Wenger, R., and K. Hupka: A new vectorcardiographic lead system. Amer. Heart J. 57, 340 (1959).PubMedCrossRefGoogle Scholar
  114. Wilson, F. N., and F.D. Johnston: The vectorcardiogram. Amer. Heart J. 16, 14 (1938).CrossRefGoogle Scholar
  115. Wilson, F. N., and F.D. Johnston., and P. S. Barker: The use of cathode ray oscillograph in the study of the monocardiogram. J. din. Invest. 16, 664 (1937).Google Scholar
  116. Wilson, F. N., and F.D. Johnston., and C. E. Kossmann: The substitution of a tetrahedron for the Einthoven triangle. Amer. Heart J. 33, 594 (1947).PubMedCrossRefGoogle Scholar
  117. Wilson, F. N., and F.D. Johnston., A. G. MacLeod, and P. S. Barker: Electrocardiograms that represent the potential variation of a single electrode. Amer. Heart J. 9, 447 (1934).CrossRefGoogle Scholar
  118. Wilson, F. N., and F.D. Johnston, F. F. Rosenbaum, and P. S. Barker: On Einthovens triangle. The theory of unipolar electrocardiographic leads and the interpretation of the precordial electrocardiogram. Amer. Heart J. 32, 277 (1946).PubMedCrossRefGoogle Scholar
  119. Wilson, F. N., and F.D. Johnston, F. F. Rosenbaum, H. Erlanger, C. E. Kossmann, H. Hecht, N. Cotrim, R. M. de Oliveira, R. Scarsi, and P. S. Barker: The precordial electrocardiogram. Amer. Heart J. 27, 19 (1944).CrossRefGoogle Scholar
  120. Witham, A. C.: Quantitation of the vectorcardiogram. Amer. Heart J. 72, 284 (1966).PubMedCrossRefGoogle Scholar
  121. Zao, Z. Z., and M. Z. Zao: The spatial ventricular vector. Its definition, determination and clinical significance. Arch. Kreisl.-Forsch. 50, 87 (1964).CrossRefGoogle Scholar

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© Springer-Verlag Berlin · Heidelberg 1969

Authors and Affiliations

  • Paul Lichtlen
    • 1
  1. 1.Medizinischen UniversitätsklinikZürichSchweiz

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