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ECG and MCG Studies on the His-Purkinje Activity in a Case of Congenital Heart Block

  • M. Leiniö
  • J. Montonen
  • M. Mäkijärvi
  • K. Mäkiniemi
  • J. Nenonen
  • T. Katila
  • P. Siltanen

Abstract

Non-invasive detection of the His-Purkinje (HP) activity could be useful in clinical practice, e.g. in determining the actual site of atrio-ventricular (A-V) block or in evaluating the effect of anti-arrhythmic drug therapy on heart conduction system. The HP activity from body surface was first measured electrically by Berbari et al. (1978). First magnetic study of the HP conduction system was reported by Farrell et al. (1980). The HP activity was described as a ramp like structure in the P-Q interval. Fenici et al. (1985) reported magnetic His-Purkinje studies with invasive ECG reference. In normal subjects the overlapping atrial activity causes serious interference with the HP-signal. To avoid this overlapping, Mäkijärvi et al. (1985) investigated patients with total A-V block. However, in these studies the accurate timing was difficult because intracardial reference ECG was not available.

Keywords

Field Pattern Congenital Heart Block Magnetic Field Pattern Invasive Electrophysiological Study Heart Conduction System 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. D. E. Farrell, J. H. Tripp and R. Nordgren, 1980, Magnetic study of the His-Purkinje conduction system in man, IEEE Trans. Biom. Eng., BME-27, pp. 345–350.CrossRefGoogle Scholar
  2. R. R. Fenici, M. Masselli, L. Lopez and F. Sabetta, 1985, First Simultaneous Magnetocardiographic and Invasive Recordings of the P-R Interval Electrophysiological Phenomena in Man Med. & Biolog. Eng. & Comp., 23 (S2), pp. 1483–1484.Google Scholar
  3. M. Mäkijärvi, R. Maniewski, I. Derka, J. Puurtinen, T. Katila and P. Siltanen, 1985, High-Resolution MCG Study on Heart Conduction System, Med. & Biolog. Eng. & Comp., 23 (S2), pp. 1485–1486.Google Scholar

Copyright information

© Plenum Press, New York 1989

Authors and Affiliations

  • M. Leiniö
    • 1
  • J. Montonen
    • 1
  • M. Mäkijärvi
    • 2
  • K. Mäkiniemi
    • 1
  • J. Nenonen
    • 1
  • T. Katila
    • 1
  • P. Siltanen
    • 2
  1. 1.Laboratory of Biomedical Engineering, Department of Technical PhysicsHelsinki University of TechnologyEspooFinland
  2. 2.Cardiovascular Laboratory, First Department of MedicineHelsinki University Central HospitalHelsinkiFinland

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