PMID: 1199938Nov 1, 1975Paper

Atrioventricular block after reciprocating atrioventricular junctional tachycardia

The American Journal of Cardiology
J M ArandaB Befeler

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.

Citations

Jul 13, 2004·Proceedings of the National Academy of Sciences of the United States of America·Hans WildschutteJeffrey G Lawrence
Sep 17, 2013·PloS One·Aleyla Escueta De CádizTomoyoshi Nozaki
Aug 26, 2014·Journal of the American Veterinary Medical Association·Laura J BaselerJosé A Ramos-Vara
Aug 22, 2002·Veterinary Clinical Pathology·Amy L MacNeillElliott Jacobson

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