Key result
Predominant RR intervals in persistent AF link to multiples of dominant atrial cycle length.
Why the study?
The relationship between predominant RR intervals and the dominant atrial fibrillatory rate during atrial fibrillation was unclear.
Observational (n=55)
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Supports conduction ratio mechanism for pRR intervals in persistent AF; leaves open refinement of rate-control or AV nodal models.
Climent et al. (2010) conducted an observational in Persistent atrial fibrillation (n=55). Dominant atrial cycle length (DACL) and rate-control treatments was evaluated on Relation between predominant RR (pRR) intervals and multiples of the dominant atrial cycle length (DACL). Predominant RR intervals during persistent atrial fibrillation were statistically related to multiples of the dominant atrial cycle length, suggesting they result from different conduction ratios.
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