An unusual PR interval alternans during 2: 1 atrioventricular block

A. Brat, F. Franchi, L. Padeletti, A. Michelucci, F. Fantini

Research output: Contribution to journalArticle

Abstract

In a case of a 2:1 second degree A-V block during sinus rhythm, PR intervals of two different durations occur, either separately or alternating beat-by-beat. The longer intervals are not caused by concealed conduction in the A-V junction of the preceding blocked impulses and the shorter ones are not due to supernormal conduction induced by the blocked impulses. This primary PR interval alternans is alternating from a pathophysiological point of view; it only concerns every other impulse alternately traveling along the faster and slower A-V junctional pathway.

Original languageEnglish
Pages (from-to)161-165
Number of pages5
JournalPACE - Pacing and Clinical Electrophysiology
Volume6
Issue number2 I
Publication statusPublished - 1983

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Atrioventricular Block

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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Brat, A., Franchi, F., Padeletti, L., Michelucci, A., & Fantini, F. (1983). An unusual PR interval alternans during 2: 1 atrioventricular block. PACE - Pacing and Clinical Electrophysiology, 6(2 I), 161-165.

An unusual PR interval alternans during 2 : 1 atrioventricular block. / Brat, A.; Franchi, F.; Padeletti, L.; Michelucci, A.; Fantini, F.

In: PACE - Pacing and Clinical Electrophysiology, Vol. 6, No. 2 I, 1983, p. 161-165.

Research output: Contribution to journalArticle

Brat, A, Franchi, F, Padeletti, L, Michelucci, A & Fantini, F 1983, 'An unusual PR interval alternans during 2: 1 atrioventricular block', PACE - Pacing and Clinical Electrophysiology, vol. 6, no. 2 I, pp. 161-165.
Brat A, Franchi F, Padeletti L, Michelucci A, Fantini F. An unusual PR interval alternans during 2: 1 atrioventricular block. PACE - Pacing and Clinical Electrophysiology. 1983;6(2 I):161-165.
Brat, A. ; Franchi, F. ; Padeletti, L. ; Michelucci, A. ; Fantini, F. / An unusual PR interval alternans during 2 : 1 atrioventricular block. In: PACE - Pacing and Clinical Electrophysiology. 1983 ; Vol. 6, No. 2 I. pp. 161-165.
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