Table 1

Electrophysiological characteristics of control subjects and patients with atrial fibrillation (AF)

BCL (ms)Control groupAF group
Data are mean (SD).
*p<0.05; *p<0.001.
BCL, basal cycle length; cSNRT, corrected sinus node recovery time;
ERP, atrial refractory period; ΔERP, difference between maximum and minimum atrial refractory periods.
cSNRT (ms)397 (54)386 (39)
    Range265–490272–440
BCL (ms)996 (137)802 (104)**
    Range820–1150560–993
ERP (ms)218 (9)184 (24)**
    Range209–236126–230
ERP (ms)600207 (5)183 (23)**
    Range200–218130–240
ERP (ms)500198 (6)179 (18)**
    Range190–210140–225
ERP (ms)400183 (6)174 (16)*
    Range178–190130–215
ERP (ms)330178 (5)168 (17)*
    Range172–190140–212
ΔERP (ms)34 (6)19 (13)**
    Range24–440–52