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AVNRT: Difference between revisions
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[[File:Re_entry. | [[File:Re_entry.svg|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]], and 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. Symptoms are bouts of fast heart rates with sudden onset. Neck vein palpitations can be prominent (the 'Frog Sign'). Termination is often possible with valsalva manouevres (blowing on wrist, squatting, carotid sinus massage) or medication (adenosine, verapamil, diltiazem), or electrocardioversion. An AVNRT is a regular rhythm with a rate of 180-250 /min. 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 occurrence of re-entry. | '''AV Nodal Re-entry Tachycardia (AVNRT)''' or Atrial-Ventricular Nodal Re-entry Tachycardia is a [[SVT|supra-ventricular arrhythmia]], and 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. Symptoms are bouts of fast heart rates with sudden onset. Neck vein palpitations can be prominent (the 'Frog Sign'). Termination is often possible with valsalva manouevres (blowing on wrist, squatting, carotid sinus massage) or medication (adenosine, verapamil, diltiazem), or electrocardioversion. An AVNRT is a regular rhythm with a rate of 180-250 /min. 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 occurrence of re-entry. | ||