Sinoatrial nodal reentry tachycardia: Difference between revisions
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Revision as of 21:34, 20 August 2013
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Synonyms and keywords: SA nodal reentrant tachycardia; SANRT; sinus node reentrant tachycardia
Overview
Sinoatrial nodal reentry tachycardia (SANRT) is caused by a reentry circuit localized to the SA node.
Diagnosis
Electrocardiogram
- SA node reentry tachycardia has a normal activation sequence with normal appearing p-wave that precedes a regular, narrow QRS complex.
- Although it cannot be distinguished on the surface 12 lead EKG from sinus tachycardia, unlike sinus tachycardia, SA node reentry tachycardia does often terminate with vagal maneuvers.