sick sinus syndrome


n.

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

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Words nearby sick sinus syndrome

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.