AVNRT: Difference between revisions
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[[File:Re_entry.png|thumb|left|[[Re-entry]] as seen in AVNRT]] | [[File:Re_entry.png|thumb|left|[[Re-entry]] as seen in AVNRT]] | ||
'''AV Nodal Re-entry Tachycardia (AVNRT)''' or Atrial-Ventricular Nodal Re-entry Tachycardia is a [[SVT|supra-ventricular arrhythmia]]. It is, more precisely, a nodal arrhythmia. AVNRT is the most frequently occurring form of regular tachycardia. More females than males have signs of AVNRT. The ratio is approximately 3:1. Often patients present themselves with a fast-paced heart rate (they say their heart is racing). An AVNRT can be reversed by vagal stimulation (squat, massage of the Carotid sinuses), medication (adenosine, verapamil), or electrocardioversion. An AVNRT is a regular rhythm with a rate of 180-250 /min. An AVNRT appears to have a [[re-entry]] with a circuit in and around the AV node. A condition for AVNRT to occur is that 2 electric pathways occur in and around the AV node (a slow paced and a fast paced pathway). That gives way to the ccurrence of re-entry. | '''AV Nodal Re-entry Tachycardia (AVNRT)''' or Atrial-Ventricular Nodal Re-entry Tachycardia is a [[SVT|supra-ventricular arrhythmia]]. It is, more precisely, a nodal arrhythmia. AVNRT is the most frequently occurring form of regular tachycardia. More females than males have signs of AVNRT. The ratio is approximately 3:1. Often patients present themselves with a fast-paced heart rate (they say their heart is racing). An AVNRT can be reversed by vagal stimulation (squat, massage of the Carotid sinuses), medication (adenosine, verapamil, diltiazem), or electrocardioversion. An AVNRT is a regular rhythm with a rate of 180-250 /min. An AVNRT appears to have a [[re-entry]] with a circuit in and around the AV node. A condition for AVNRT to occur is that 2 electric pathways occur in and around the AV node (a slow paced and a fast paced pathway). That gives way to the ccurrence of re-entry. | ||
Two forms of ANVRT occur: typical and atypical ANVRT | Two forms of ANVRT occur: typical and atypical ANVRT | ||