Sinoatrial nodal reentry tachycardia: Difference between revisions
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==Overview== | ==Overview== | ||
Sinoatrial | Sinoatrial nodal reentry tachycardia (SANRT) is caused by a reentry circuit localized to the [[SA node]]. | ||
==Diagnosis== | ==Diagnosis== | ||
===Electrocardiogram=== | ===Electrocardiogram=== | ||
*SA node reentry tachycardia | *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]]. | *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]]. | ||
Revision as of 15:36, 13 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.