Key result
Septal accessory pathways are linked to ~39% lower AVRT inducibility compared to left ventricular pathways.
Why the study?
Differences in the induction rate of atrioventricular reciprocating tachycardia (AVRT) by accessory pathway location in WPW syndrome were not well characterized.
Does the location of the accessory pathway affect the induction rate of AVRT in patients with WPW syndrome?
Cross-Sectional (n=100)
No
Does the location of the accessory pathway affect the induction rate of AVRT in patients with WPW syndrome?
Absolute Event Rate: 52% vs 85%
p-value: p=<0.01
In patients with WPW syndrome, accessory pathways located in the ventricular septum are associated with a significantly lower induction rate of AVRT and lower presence of ventriculo-atrial conduction compared to left ventricular pathways.
May influence WPW risk stratification by pathway location; hypothesis-generating and requires prospective validation.
No takes yet. Share an insight, caveat, or question.
Enjoji et al. (1992) conducted a cross-sectional in Wolff-Parkinson-White (WPW) syndrome (n=100). Accessory pathway located in the ventricular septum vs. Accessory pathway located in the left ventricle was evaluated on Induction rate of atrioventricular reciprocating tachycardia (AVRT) (p=<0.01). The induction rate of atrioventricular reciprocating tachycardia was significantly lower in WPW syndrome patients with a septal accessory pathway (52%) compared to those with a left ventricular pathway (85%, p<0.01).
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: