Supraventricular Tachycardia - Types

Types

The following types of supraventricular tachycardias are more precisely classified by their specific site of origin. While each belongs to the broad classification of SVT, clinicians prefer to use the specific term/diagnosis, when possible:

sinoatrial origin:

  • Sinoatrial nodal reentrant tachycardia (SNRT)

atrial origin:

  • Ectopic (unifocal) atrial tachycardia (EAT)
  • Multifocal atrial tachycardia (MAT)
  • Atrial fibrillation with a rapid ventricular response
  • Atrial flutter with a rapid ventricular response
(Without rapid ventricular response, fibrillation and flutter are usually not classified as SVT)

atrioventricular origin (junctional tachycardia):

  • AV nodal reentrant tachycardia (AVNRT) or junctional reciprocating tachycardia (JRT)
    • Permanent (or persistent) junctional reciprocating tachycardia (PJRT), a form of JRT which occurs predominantly in infants and children but can occasionally occur in adults
  • AV reciprocating tachycardia (AVRT) - visible or concealed (including Wolff-Parkinson-White syndrome)
  • Junctional ectopic tachycardia (JET)

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