Atrioventricular block after reciprocating atrioventricular junctional tachycardia

Juan M. Aranda; Federico Moleiro; Agustin Castellanos; Benjamin Befeler

doi:10.1016/0002-9149(75)90464-6

Atrioventricular block after reciprocating atrioventricular junctional tachycardia

Juan M. Aranda, Federico Moleiro, Agustin Castellanos, Benjamin Befeler

Medicine

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1 Scopus citations

Abstract

Short runs of symptomatic atrioventricular (A-V) block occurred after spontaneous cessation of reciprocating A-V Junctional tachycardia in a patient with right bundle branch block, normal H-V interval and sinus nodal dysfunction. These episodes were characterized by long (more than 1 sec) P-P intervals during which the A deflections were not followed by His bundle electrograms. Three possible explanations are: (1) a posttachycardia-induced period of abnormally prolonged A-V nodal refractoriness; (2) pseudo-A-V block produced by concealed A-V Junctional tachycardia, or (3) bradycardia-dependent (phase 4) A-V block at the "upper" His bundle, above the site from which the H deflection was recorded.

Original language	English (US)
Pages (from-to)	807-809
Number of pages	3
Journal	The American Journal of Cardiology
Volume	36
Issue number	6
DOIs	https://doi.org/10.1016/0002-9149(75)90464-6
State	Published - Nov 1975

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ASJC Scopus subject areas

Cardiology and Cardiovascular Medicine

Cite this

Aranda, J. M., Moleiro, F., Castellanos, A., & Befeler, B. (1975). Atrioventricular block after reciprocating atrioventricular junctional tachycardia. The American Journal of Cardiology, 36(6), 807-809. https://doi.org/10.1016/0002-9149(75)90464-6

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AB - Short runs of symptomatic atrioventricular (A-V) block occurred after spontaneous cessation of reciprocating A-V Junctional tachycardia in a patient with right bundle branch block, normal H-V interval and sinus nodal dysfunction. These episodes were characterized by long (more than 1 sec) P-P intervals during which the A deflections were not followed by His bundle electrograms. Three possible explanations are: (1) a posttachycardia-induced period of abnormally prolonged A-V nodal refractoriness; (2) pseudo-A-V block produced by concealed A-V Junctional tachycardia, or (3) bradycardia-dependent (phase 4) A-V block at the "upper" His bundle, above the site from which the H deflection was recorded.

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10.1016/0002-9149(75)90464-6