Sinus node dysfunction
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Rim Halaby, M.D. [2]
Overview
Sinus node dysfunction describes different abnormalities in the functioning of the SA node. Sinus node dysfunction can result from decreased rate of firing of the SA node, failure to generate an impulse or failure to conduct the electrical impulse within the SA node.