Table 2

Doppler and Other Parameters Recorded From the LACB and LCx for Patients With LRAF and for Control Subjects

ControlLRAF
LCxLACBLCxLACB
HR (beats/min)69 ± 1171 ± 1271 ± 1370 ± 14
SBP (mm Hg)128 ± 16127 ± 17119 ± 14120 ± 12
DBP (mm Hg)70 ± 1169 ± 1267 ± 1068 ± 9
b-APV (cm/s)17.1 ± 4.816.5 ± 5.414.8 ± 5.313.7 ± 3.9
h-APV (cm/s)49.9 ± 14.745.8 ± 12.843.0 ± 10.930.4 ± 9.5
CFR3.0 ± 0.62.9 ± 0.53.1 ± 0.62.2 ± 0.4

b-APV = time-averaged peak flow velocity at baseline; CFR = coronary flow reserve; DBP = diastolic blood pressure; h-APV = time-averaged peak flow velocity after maximal hyperemia; HR = heart rate; LACB = left atrial circumflex branch; LCx = left circumflex coronary artery; LRAF = lone recurrent atrial fibrillation; SBP = systolic blood pressure.

  • p = 0.001 compared with control subjects.

  • p < 0.001 compared with patients' LCx.