Key result
Older age (>45 years) was associated with a significantly longer tachycardia cycle length compared to younger patients (362 vs 329 msec, P=0.01) during AV nodal reentrant tachycardia.
Why the study?
Does age affect the electrophysiologic characteristics and conduction properties of AV nodal reentrant tachycardia?
Observational (n=45)
Does age affect the electrophysiologic characteristics and conduction properties of AV nodal reentrant tachycardia?
Absolute Event Rate: 362% vs 329%
p-value: p=0.01
Age-related slowing of AV nodal reentrant tachycardia is likely driven by transverse nonuniform anisotropic conduction, demonstrated by heterogeneous delayed atrial activation in older patients.
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May prompt age-adjusted AVNRT diagnostic thresholds; leaves open effects on ablation success.
Anselme et al. (1996) conducted an observational in Typical AV nodal reentrant tachycardia (n=45). Older age (> 45 years) vs. Younger age (≤ 45 years) was evaluated on Tachycardia cycle length (p=0.01). Older age (>45 years) was associated with a significantly longer tachycardia cycle length compared to younger patients (362 vs 329 msec, P=0.01) during AV nodal reentrant tachycardia.
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