Table 1.
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† |
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.
† p < 0.0001 the comparison of a same rhythm before and during isoproterenol infusion.
The t-test comparing organized (SR) to not organized (AF) rhythms always results significant (* p < 0.0001).