Key result
The natural logarithm of bipolar electrogram amplitude showed a highly significant positive linear correlation with local conduction velocity in atrial flutter reentry circuits (R2=0.809, P<0.001).
Why the study?
Does bipolar electrogram amplitude correlate with local conduction velocity in the reentry circuit of right atrial flutter?
Observational (n=26)
Does bipolar electrogram amplitude correlate with local conduction velocity in the reentry circuit of right atrial flutter?
Effect estimate: R2 = 0.809
p-value: p=<0.001
Local conduction velocity shows a highly positive linear correlation with the natural logarithm of bipolar electrogram amplitude, suggesting conduction velocity can be estimated by electrogram amplitude during CARTO mapping of atrial flutter.
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May enable amplitude-based conduction velocity estimation in atrial flutter mapping; leaves open effects on ablation outcomes.
Itoh et al. (2013) conducted an observational in Atrial flutter (n=26). Bipolar electrogram amplitude was evaluated on Correlation between local conduction velocity and natural logarithm of bipolar electrogram amplitude (R2 = 0.809, p=<0.001). The natural logarithm of bipolar electrogram amplitude showed a highly significant positive linear correlation with local conduction velocity in atrial flutter reentry circuits (R2=0.809, P<0.001).
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