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Abstract

The normal PR (PQ) interval exceeds 0.12 s and encompasses the delay in cardiac conduction from the right atrium in the area of the sinoatrial node to the point of earliest activation of the ventricles. Up to 2% of normal persons have PR intervals from 0.10 to 0.12 s[1] and represent one end of the normal distribution. The measurement of the true PR interval is subject to an error of ±0.02 s at the usual paper speed of 25 mm/s used for routine electrocardiography using a single-channel electrocardiogram for measurement [2]. Rarely a short PR interval may be observed during isorhythmic AV dissociation [3] and in a variety of rare lysosomal storage diseases where it is believed to result from infiltration of individual AV nodal fibers with substrate [4–7]. It has been described in hyperthyroidism, anxiety neurosis, hypertension, and several other conditions where there appears to be a common underlying mechanism of increased sympathetic tone or circulating catecholamines [1].

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References

  1. Sherf D, Cohen J: The atrioventricular node and selected cardiac arrhythmias. New York, Grune and Stratton, 1964.

    Google Scholar 

  2. White PD, Leach CE, Fotte SA: Errors in measurement of the P-R (P-Q) interval and ORS duration in the electrocardiogram. Am Heart J 22:321–328, 1941.

    Article  Google Scholar 

  3. Caracta AR, Damato AN, Gallagher JJ, Josephson ME, Varghese PJ, Lau SH, Westura EE: Electrophysiologic studies in the syndrome of short P-R interval, normal QRS complex. Am J Cardiol 31:245–253, 1973.

    Article  PubMed  CAS  Google Scholar 

  4. Keith J, Sass-Kortsak A: Glycogen storage disease of the heart. In: Keith JD, Rowe RD, Vlad P (eds). Heart disease in infancy and childhood. New York, Macmillan, 1978, pp 991–994.

    Google Scholar 

  5. Rodriquez-Torres R, Schneck L, Klienberg W: Electrocardiographic and biochemical abnormalities in Tay-Sachs disease. Bull NY Acad Med 47:717–730, 1971.

    Google Scholar 

  6. Roudebush CP, Foerster JM, Bing OHL: The abbreviated PR interval of Fabry’s disease. N Engl J Med 289:357–358, 1973.

    Article  PubMed  CAS  Google Scholar 

  7. Mehta J, Desnick RJ: Abbreviated PR interval in mannosidosis. J Pediatr 92:599–601, 1978.

    Article  PubMed  CAS  Google Scholar 

  8. Batsford WP, Akhtar M, Caracta AR, Josephson ME, Seides SF, Damato AN: Effect of atrial stimulation site on the electrophysiological properties of the atrioventricular node in man. Circulation 50:283–292, 1974.

    PubMed  CAS  Google Scholar 

  9. Agha AS, Befeler B, Castellanos AM, Sung RJ, Castillo CA, Mverbürg RJ, Castellanos A: Bipolar catheter electrograms for study of retrograde atrial activation pattern in patients without preexcitation syndromes. Br Heart J 38:641–645, 1976.

    Article  PubMed  CAS  Google Scholar 

  10. Damato AN, Lau AH: Clinical value of the electrogram of the conduction system. Prog Cardiovasc Dis 13:119–140, 1970.

    Article  PubMed  CAS  Google Scholar 

  11. Gould L, Ramana Reddy CV, Chua W, Swamy C, Dorismond JC: The syndrome of normal electrocardiograms, accessory pathways and paroxysmal tachycardias. J Electrocardiol 10:157–164, 1977.

    Article  PubMed  CAS  Google Scholar 

  12. Seipel L, Breithardt G, Both A: Atrioventricular (AV) and ventriculoatrial (VA) conduction pattern in patients with short P-R interval and normal QRS complex. In: Luderitz B (ed) Cardiac pacing -diagnostic and therapeutic tools. Heidelberg, Springer, 1976, pp 152–163.

    Google Scholar 

  13. Josephson ME, Seides SF: Clinical cardiac electrophysiology. Techniques and interpretations. Philadelphia, Lea and Febiger, 1979.

    Google Scholar 

  14. Denes P, Wu D, Rosen KM: Demonstration of dual A-V pathways in a patient with Lown-Ganong-Levine syndrome. Chest 65:343–346, 1974.

    PubMed  CAS  Google Scholar 

  15. Bissett JK, de Soyza N, Kane JJ, Murphy ML: Altered refractory periods in patients with short P-R intervals and normal QRS complex. Am J Cardiol 35:487–491, 1975.

    Article  PubMed  CAS  Google Scholar 

  16. Iannone LA: Electrophysiology of atrial pacing in patients with short P-R interval, normal QRS complex. Am Heart J 89:74–78, 1975.

    Article  PubMed  CAS  Google Scholar 

  17. Gallagher JJ, Pritchett EL, Sealy WC, Kasell J, Wallace AG: The preexcitation syndromes. Prog Cardiovasc Dis 20:285–327. 1978.

    Article  PubMed  CAS  Google Scholar 

  18. Pahlajani DB, Miller RA. Serratto M: Patterns of atrioventricular conduction in children. Am Heart J 90:165–171, 1975.

    Article  PubMed  CAS  Google Scholar 

  19. Kennelly BM, Lane GK: Electrophysiological studies in four patients with atrial flutter with 1:1 atrioventricular conduction. Am Heart J 96:723–730, 1978.

    Article  PubMed  CAS  Google Scholar 

  20. Wu D, Denes P, Dhingra R, Khan A, Rosen KM: The effects of propranolol on induction of A-V nodal reentrant paroxysmal tachycardia. Circulation 50:665–677, 1974.

    PubMed  CAS  Google Scholar 

  21. Wu D, Wyndham C, Amat-y-Leon F, Denes P, Dhingra RC, Rosen KM: The effects of ouabain on induction of atrioventricular nodal reentrant paroxysmal supraventricular tachycardia. Circulation 52:201–207, 1975.

    PubMed  CAS  Google Scholar 

  22. Lown B, Ganong WF, Levine SA: The syndrome of short P-R interval, normal QRS complex and paroxysmal rapid heart action. Circulation 5:693–706, 1952.

    PubMed  CAS  Google Scholar 

  23. Befeler B, Castellanos A, Aranda J, Gutierrez R, Lazzaro R: Intermittent bundle branch block in patients with accessory atrio-His or atrio-AV nodal pathways. Variants of the Lown-Ganong-Levine syndrome. Br Heart J 38:173–179, 1976.

    Article  PubMed  CAS  Google Scholar 

  24. Durrer D: Electrical aspects of human cardiac activity: a clinical physiological approach to excitation and stimulation. Cardiovasc Res 2:1–18, 1968.

    Article  PubMed  CAS  Google Scholar 

  25. Castellanos A Jr, Castillo CA, Agha AS, Tessler BS: His bundle electrograms in patients with short P-R intervals, narrow QRS complexes and paroxysmal tachycardias. Circulation 43:667–678, 1971.

    PubMed  Google Scholar 

  26. Mandel WJ, Danzig R, Hayakawa H: Lown-Ganong-Levine syndrome. A study using His bundle electrograms. Circulation 44:696–708, 1971.

    PubMed  CAS  Google Scholar 

  27. Coumel P, Waynberger M, Fabiato A, Slama R, Aigueperse J, Bouvrain Y: Wolff-Parkinson-White syndrome. Problems in evaluation of multiple accessory pathways and surgical therapy. Circulation 45:1212–1230, 1972.

    Google Scholar 

  28. McRae JR, Wagner GS, Rogers MC, Canent RV: Paroxysmal familial ventricular fibrillation. J Pediatr 84:515–518, 1974.

    Article  PubMed  CAS  Google Scholar 

  29. Castellanos A, Vagueiro MC, Befeler B. Myerburg RJ: Syndrome of short P-R, narrow QRS and repetetive supraventricular tachyarrhythmias: the possible occurrence of the R-on-T phenomenon and the limits of this syndrome. Eur J Cardiol 2:337–342, 1975.

    PubMed  CAS  Google Scholar 

  30. Aranda J, Castellanos A, Moleiro F, Befeler B: Effects of pacing site on A-H conduction and refractoriness in patients with short P-R intervals. Circulation 53:33–39, 1976.

    PubMed  CAS  Google Scholar 

  31. Josephson ME, Kastor JA: Supraventricular tachycardia in Lown-Ganong-Levine syndrome: atrionodal versus intranodal reentry. Am J Cardiol 40:521–527, 1977.

    Article  PubMed  CAS  Google Scholar 

  32. Benditt DG, Pritchett ELC, Smith WM, Wallace AG, Gallagher JJ: Characteristics of atrioventricular conduction and the spectrum of arrhythmias in Lown-Ganong-Levine syndrome. Circulation 57:454–465, 1978.

    PubMed  CAS  Google Scholar 

  33. Narula OS: Electrophysiologic evaluation of accessory conduction pathways. In Narula OS (ed) His bundle electrocardiography and clinical electrophysiology. Philadelphia, FA Davis, pp 314–323, 1975.

    Google Scholar 

  34. Thapar MK, Gillette PC: Dual atrioventricular nodal pathways: a common electrophysiologic response in children. Circulation 60:1369–1374, 1979.

    PubMed  CAS  Google Scholar 

  35. Castellanos A Jr, Agha AS, Befeler B, Myerburg RJ: Double accessory pathways in Wolff-Parkinson-White syndrome. Circulation 51:1020–1025, 1975.

    PubMed  CAS  Google Scholar 

  36. Coumel P, Waynberger M, Gamier JC, Slama R, Bouvrain Y: Syndrome de préexcitation ventriculaire associant P-R court et onde delta, sans élargissement de QRS: (a propos de trios cas de syndrome de WPW à complexes fins). Arch Mal Couer 64:1234–1255, 1971.

    CAS  Google Scholar 

  37. Zipes DP, DeJoseph RL, Rothbaum DA: Unusual properties of accessory pathways. Circulation 49:1200–1211, 1974.

    PubMed  CAS  Google Scholar 

  38. Neuss H, Schlepper M, Spies HF: Effects of heart rate and atropine on “dual A-V conduction”. Br Heart J 37:1216–1227, 1975.

    Article  PubMed  CAS  Google Scholar 

  39. Ward DE, Camm AJ, Spurrell RAJ: Re-entrant tachycardia using two bypass tracts and excluding AV node in short PR interval, normal QRS syndrome. Br Heart J 40:1127–1133, 1978.

    Article  PubMed  CAS  Google Scholar 

  40. Bellet S, Jedlicka J: Sinoventricular conduction and its relation to sino-atrial conduction. Am J Cardiol 24:831–835, 1969.

    Article  PubMed  CAS  Google Scholar 

  41. Théry CI, Lékieffre J, Carré A, Warembourg H: Le syndrome PR court-QRS normal: Forme particulière de bloc sino-auriculaire? (Avec étude anatomique des voies de conduction.) Arch Mal Coeur 67:507–512, 1974.

    Google Scholar 

  42. Burch GE, Kimball JL: Notes on the similarity of QRS complex configurations in the Wolff-Parkinson-White Syndrome. Am Heart J 32:560–570, 1946.

    Article  PubMed  CAS  Google Scholar 

  43. James TN: Morphology of the human atrioventricular node, with remarks pertinent to its electrophysiology. Am Heart J 62:756–771, 1961.

    Article  PubMed  CAS  Google Scholar 

  44. Ferrer MI: New concepts relating to the preexcitation syndrome. JAMA 201:1038–1039, 1967.

    Article  PubMed  CAS  Google Scholar 

  45. Lev M, Leffler WB, Langendorf R, Pick A: Anatomic findings in a case of ventricular preexcitation (WPW) terminating in complete atrioventricular block. Circulation 34:718–733, 1966.

    PubMed  CAS  Google Scholar 

  46. Brechenmacher C, Laham J, Iris L, Gerbaux A, Lenègre J: Etude histologique des voies anormales de conduction dans un syndrome de Wolff-Parkinson-White et dans un syndrome de Lown-Ganong-Levine. Arch Mal Coeur 67:507–519, 1974.

    PubMed  CAS  Google Scholar 

  47. Brechenmacher C: Atrio-His bundle tracts. Br Heart J 37:853–855, 1975.

    Article  PubMed  CAS  Google Scholar 

  48. Moe GK, Preston JB, Burlington H: Physiologie evidence for a dual A-V transmission system. Circ Res 4:357–375, 1956.

    PubMed  CAS  Google Scholar 

  49. Mendez C, Moe GK: Demonstration of a dual A-V conduction system in the isolated heart. Circ Res 19:378–393, 1966.

    PubMed  CAS  Google Scholar 

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© 1981 Martinus Nijhoff Publishers, The Hague

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Kennelly, B.M. (1981). The Short PR Interval. In: Wellens, H.J.J., Kulbertus, H.E. (eds) What’s New in Electrocardiography. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-8239-0_10

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  • DOI: https://doi.org/10.1007/978-94-009-8239-0_10

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-90-247-2452-9

  • Online ISBN: 978-94-009-8239-0

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