Article
Right atrial flutter isthmus revisited: normal anatomy favors nonuniform anisotropic conduction.
Journal of cardiovascular electrophysiology - 1 Jan 2000
Waki K, Saito T, Becker A E
Abstract excerpt
INTRODUCTION: The "flutter isthmus," the part of the lower right atrium between the eustachian valve and the tricuspid annulus inferior to the coronary sinus os, is considered the crucial zone for conduction delay necessary for the genesis of atrial flutter. However, the underlying mechanism remains unclear. METHODS AND RESULTS: We studied the "flutter isthmus" in 50 hearts obtained at autopsy from patients...
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