Cardiac Pacing pp 809-814 | Cite as

Centrifugal Geometric Scanning — an Alternative Concept in Pacemaker Treatment of Tachycardias

  • Hans O. Vallin
  • Ch. Hård af Segerstad
  • P. Insulander
  • K. O. Edhag
  • H. Lagergren
Conference paper


Short term efficacy and safety of a new scanning concept for termination of AV reciprocating tachycardias were assessed in five patients, two with dual AV nodal pathways and three with an accessory A V connection. The concept includes geometric partioning of the scanning interval concentrating the attempts to its early part, a centrifugal search outwardly from a memorized extra stimulus delay and alternation of the number of extrastimuli. After initial definition of the termination characteristics in each patient the system was found efficient during a 48-hours recorded period. No adverse effects were observed.


Short Term Efficacy Heart Cycle Coupling Interval Scanning Cycle Termination Zone 
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  1. 1.
    Rowland E, Curry PVL, Krikler DM: The assessment of under drive pacing in the early termination of reentrant atrioventricular tachycardia. In: Proceedings of the VI World Symposium on Cardiac Pacing, Pacesymp, Montreal 1979; Chapter 9–5.Google Scholar
  2. 2.
    Curry PVL, Rowland E, Fox KM, Krikler DM: The relationship between posture, blood pressure, and electrophysical properties in patients with paroxysmal supraventricular tachycardia. Archives des Maladies du Coeur et des Vaisseaux. 1978; 71: 293–299.PubMedGoogle Scholar
  3. 3.
    Crick J, Way B, Kappenberger L, Sowton E: Variation in tachycardia termination window with posture and exercise (Abstract). Pace 1981; 4: A-7.Google Scholar
  4. 4.
    Kappenberger L, Sowton E: Method for control of tachycardia by long-term programmed stimulation. Br Heart J 1979; 41: 371.Google Scholar
  5. 5.
    Spurrell RAJ: Artificial Cardiac Pacemakers. In: Krikler DM, Goodwin JF, eds. Cardiac Arrhythmias; The Modem Electrophysiological Approach. WB Saunders Company Ltd, 1975; 238–258.Google Scholar
  6. 6.
    Ward DE, Camm AJ, Spurrell RAJ: The response of regular re-entrant supraventricular tachycardia to right heart stimulation. Pace 1979; 2: 586–595.CrossRefPubMedGoogle Scholar
  7. 7.
    Wellens HJJ, Bar FW, Gorgels AP, Muncharaz JF: Electrical management of arrhythmias with emphasis on the tachycardias. Am J Cardiol l978; 41: 1025–1034.CrossRefPubMedGoogle Scholar
  8. 8.
    Spurrell RAJ, Nathan AW, Bexton RS, Hellestrand KJ, Nappholz T, Camm AJ: Implantable Automatic Scanning Pacemaker for Termination of Supraventricular Tachycardia. Am J Cardiol 1982; 49: 753–760.CrossRefPubMedGoogle Scholar

Copyright information

© Dr. Dietrich Steinkopff Verlag, GmbH & Co. KG, Darmstadt 1983

Authors and Affiliations

  • Hans O. Vallin
    • 1
  • Ch. Hård af Segerstad
  • P. Insulander
  • K. O. Edhag
  • H. Lagergren
  1. 1.Department of MedicineHuddinge HospitalHuddingeSweden

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