Key result
Catheter ablation at the right inferoparaseptum eliminated antegrade slow pathway conduction and rendered AVNRT noninducible in all 9 patients with variable ventriculoatrial block.
Why the study?
What are the electrophysiologic characteristics of the upper common pathway in AVNRT with variable VA block, and does catheter ablation at the right inferoparaseptum eliminate it?
Population
9 patients with atrioventricular nodal reentrant tachycardia accompanied by variable ventriculoatrial…
Design
Case_series
Authors
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May support inferoparaseptal ablation in AVNRT with variable VA block; leaves open prospective validation of upper common pathway targeting.
Observational (n=9)
What are the electrophysiologic characteristics of the upper common pathway in AVNRT with variable VA block, and does catheter ablation at the right inferoparaseptum eliminate it?
Selective elimination of slow pathway conduction at the inferoparaseptal right atrium suggests the subatrial tissue linking retrograde fast and antegrade slow pathways forms the upper common pathway in AVNRT with VA block.
Morihisa et al. (2009) conducted an observational in Atrioventricular nodal reentrant tachycardia (AVNRT) with variable ventriculoatrial (VA) block (n=9). Catheter ablation at the right inferoparaseptum was evaluated on Electrophysiologic characteristics of the upper common pathway. Catheter ablation at the right inferoparaseptum eliminated antegrade slow pathway conduction and rendered AVNRT noninducible in all 9 patients with variable ventriculoatrial block.
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