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The Mechanism of Atrioventricular Conduction
Author(s) -
A. M. Scher,
María Isabel Rodríguez,
Juhan Liikane,
A. C. Young
Publication year - 1959
Publication title -
circulation research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 4.899
H-Index - 336
eISSN - 1524-4571
pISSN - 0009-7330
DOI - 10.1161/01.res.7.1.54
Subject(s) - thermal conduction , atrioventricular node , electrical conduction system of the heart , node (physics) , mechanism (biology) , nerve conduction velocity , electrical conduction , atrioventricular block , atrium (architecture) , anatomy , biophysics , materials science , chemistry , cardiology , electrocardiography , physics , medicine , tachycardia , atrial fibrillation , biology , acoustics , quantum mechanics , composite material
Potentials recorded at various sites in the atrioventricular (A-V) conduction system indicate that conduction is continuously electrical in nature and involves no synapse-like (i.e., chemical) conduction. The region between atrium and atrioventricular node has the slowest conduction velocity (.05 M./sec.) and lowest safety factor. Conduction through the A-V node is at about .12 M./sec. Results demonstrate shapes of potentials recorded extracellularly at various sites within the A-V node, first degree and complete block during rapid atrial stimulation, and echo-like phenomena.

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