Oct 1, 1979

Multilevel block in the atrioventricular node during atrial tachycardia and flutter alternating with Wenckebach phenomenon

British Heart Journal
R SlamaY Bouvrain


The electrocardiograms of 100 patients with rapid and regular PP intervals during atrial arrhythmias (because of atrial tachycardia or flutter, or pacing) were examined for periods of irregular atrioventricular conduction. This irregular conduction corresponds to an alternating Wenckebach phenomenon, of a type that can be determined from simple rules. The different types of conduction encountered in different patients and the changes seen in the same patient suggest that the atrioventricular node functions physiologically with 3 levels of sequential block. The different prevalence of the 2 types of alternating Wenckebach block may reflect functional differences at the level of the atrioventricular node.

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  • Citations14


Mentioned in this Paper

Heart Block
Right Atrial Structure
Atrial Tachycardia
Digitalis Glycosides
Cardiac Conduction System
Structure of Atrioventricular Node
Entire Atrioventricular Node
Atrial Arrhythmia
Tachycardia, Ectopic Atrial
Cardiac Flutter

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