Electrophysiologic studies in a patient with atrial flutter and 1

1 atrioventricular conduction

J. M. Aranda, F. Moleiro, Agustin Castellanos, B. Befeler

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Intracardiac electrophysiologic studies were performed in a patient having paroxysms of atrial flutter with 1:1 atrioventricular (A V) conduction. Although duration of conduction intervals was normal during sinus rhythm, the atrio His (A H) interval did not show the expected increase when the atria were stimulated at progressively higher rates. The results of pacing with the extrastimulus technique also indicated that the refractory periods of the A H tissues were shorter than normal. Yet, intravenously administered ouabain produced a significant increase in these refractory periods. The findings in this case are compatible with a partial A V nodal bypass with a shorter refractory period than the A V node or with an A V node with unusual capacity for rapid conduction. The response to ouabain therapy was that of A V nodal tissues.

Original languageEnglish (US)
Pages (from-to)200-204
Number of pages5
JournalChest
Volume68
Issue number2
StatePublished - 1975
Externally publishedYes

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Atrioventricular Node
Atrial Flutter
Ouabain
Therapeutics

ASJC Scopus subject areas

  • Pulmonary and Respiratory Medicine

Cite this

Aranda, J. M., Moleiro, F., Castellanos, A., & Befeler, B. (1975). Electrophysiologic studies in a patient with atrial flutter and 1: 1 atrioventricular conduction. Chest, 68(2), 200-204.

Electrophysiologic studies in a patient with atrial flutter and 1 : 1 atrioventricular conduction. / Aranda, J. M.; Moleiro, F.; Castellanos, Agustin; Befeler, B.

In: Chest, Vol. 68, No. 2, 1975, p. 200-204.

Research output: Contribution to journalArticle

Aranda, JM, Moleiro, F, Castellanos, A & Befeler, B 1975, 'Electrophysiologic studies in a patient with atrial flutter and 1: 1 atrioventricular conduction', Chest, vol. 68, no. 2, pp. 200-204.
Aranda JM, Moleiro F, Castellanos A, Befeler B. Electrophysiologic studies in a patient with atrial flutter and 1: 1 atrioventricular conduction. Chest. 1975;68(2):200-204.
Aranda, J. M. ; Moleiro, F. ; Castellanos, Agustin ; Befeler, B. / Electrophysiologic studies in a patient with atrial flutter and 1 : 1 atrioventricular conduction. In: Chest. 1975 ; Vol. 68, No. 2. pp. 200-204.
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