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Table 1 Mean ± SD values of the proposed indexes in the four analyzed phases

From: Assessment of the dynamics of atrial signals and local atrial period series during atrial fibrillation: effects of isoproterenol administration

  SR SRISO AF AFISO
AS     
R 0.49 ± 0.08 0.46 ± 0.09 0.29 ± 0.09* 0.28 ± 0.08
S 0.28 ± 0.02 0.28 ± 0.03 0.20 ± 0.06* 0.20 ± 0.06
LAP     
R 0.75 ± 0.07 0.69 ± 0.10 0.31 ± 0.08* 0.26 ± 0.09
LP 99.99 ± 0.001 99.97 ± 0.03 69.46 ± 21.55* 55 ± 24.75
  1. Mean ± SD values of the proposed indexes in the four analyzed phases: sinus rhythm (SR), sinus rhythm during isoproterenol infusion (SRISO), atrial fibrillation (AF) and atrial fibrillation during isoproterenol infusion (AFISO) for Atrial Signals (AS) and LAP series.
  2. p < 0.0001 the comparison of a same rhythm before and during isoproterenol infusion.
  3. The t-test comparing organized (SR) to not organized (AF) rhythms always results significant (* p < 0.0001).