Sinoatrial nodal reentry tachycardia: Difference between revisions
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Sinoatrial node reentrant tachycardia (SANRT) is caused by a reentry circuit localised to the SA node, | {{SI}} | ||
{{CMG}} | |||
==Overview== | |||
Sinoatrial node reentrant tachycardia (SANRT) is caused by a reentry circuit localised to the SA node, | |||
==Diagnosis== | |||
===Electrocardiogram=== | |||
*SA node reentry results in a normal appearing [[p-wave]] that precedes a regular, narrow [[QRS complex]]. | |||
*It is therefore impossible to distinguish on the EKG from ordinary sinus tachycardia. | |||
*It may however be distinguished by its prompt response to [[vagal maneuvers]]. |
Revision as of 20:01, 5 September 2012
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Sinoatrial node reentrant tachycardia (SANRT) is caused by a reentry circuit localised to the SA node,
Diagnosis
Electrocardiogram
- SA node reentry results in a normal appearing p-wave that precedes a regular, narrow QRS complex.
- It is therefore impossible to distinguish on the EKG from ordinary sinus tachycardia.
- It may however be distinguished by its prompt response to vagal maneuvers.