Classification of electrophysiological types of atrioventricular nodal re-entrant tachycardia: a reappraisal
Key result
The His-atrial or ventriculo-atrial interval should replace retrograde atrial activation as the primary criterion to classify atrioventricular nodal re-entrant tachycardia.
Why the study?
Should AVNRT be classified based on His-atrial or ventriculo-atrial intervals rather than retrograde atrial activation sequence?
Population
Patients with atrioventricular nodal re-entrant tachycardia (AVNRT)
Comparison
Classification of AVNRT according to the… vs Conventional classification based on sequence of…
Design
Review
Authors
Discussion
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Implication
Should not yet change AVNRT classification practice; hypothesis-generating for interval-based criteria pending prospective validation.
Structured PICO
Should AVNRT be classified based on His-atrial or ventriculo-atrial intervals rather than retrograde atrial activation sequence?
P
Population
Patients with atrioventricular nodal re-entrant tachycardia (AVNRT)
I
Intervention
Classification of AVNRT according to the His-atrial interval or ventriculo-atrial interval measured on the His bundle recording electrode
C
Comparator
Conventional classification based on sequence of retrograde atrial activation or lower common pathway
O
Outcome
Reliable classification of typical vs atypical AVNRT
Proposes a simplified and more reliable classification scheme for AVNRT based on His-atrial or ventriculo-atrial intervals rather than retrograde atrial activation.
Cite This Study
Katritsis et al. (2013) studied this question. The His-atrial or ventriculo-atrial interval should replace retrograde atrial activation as the primary criterion to classify atrioventricular nodal re-entrant tachycardia.