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. Author manuscript; available in PMC: 2012 Jul 5.
Published in final edited form as: J Am Coll Cardiol. 2012 Feb 7;59(6):595–606. doi: 10.1016/j.jacc.2011.10.879

Table 3.

Atrial Electogram Duration and Amplitude Dynamic Status

Characteristic Persistent AF Paroxysmal AF Control Subjects p Value
Atrial signal duration, ms
    Longest CL
        Site of AF initiation 82 ± 20* 58 ± 15 – 0.01
        Latest activated site 73 ± 22 59 ± 13 66 ± 18 0.09
    Shortest CL
        Site of AF initiation 63 ± 29 69 ± 31 – 0.68
        Latest activated site 56 ± 13 60 ± 22 56 ± 14 0.57
Atrial signal amplitude, mV
    Slowest CL
        Site of AF initiation 0.69 ± 0.47 0.51 ± 0.41 – 0.41
        Latest activated site 0.55 ± 0.45 0.74 ± 0.83 0.34 ± 0.31 0.22
    Fastest CL
        Site of AF initiation 0.46 ± 0.35 0.28 ± 0.22 – 0.22
        Latest activated site 0.51 ± 0.32 0.37 ± 0.37 0.52 ± 0.25 0.34
*

p < 0.05 versus paroxysmal atrial fibrillation (AF).

CL = cycle length (of pacing).