sick sinus syndrome

sick sinus syndrome definition - medical

sick sinus syndrome

noun Abbr. SSS
Chaotic atrial activity characterized by an abnormally slow heartbeat punctuated by recurring ectopic beats and periods of an abnormally rapid heartbeat.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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