Table 2

Left Anterior Descending and Dominant Coronary Artery Doppler Flow Velocity Measurements in Patients With Permanent Ventricular Pacing, With (Group I) and Without (Group II) Dipyridamole Scintigraphic Perfusion Defects, and in Control Subjectslegend

r-APV (cm/s)h-APV (cm/s)
Group IGroup IIControl GroupGroup IGroup IIControl Group
LAD∗ †21.5 ± 4.815.9 ± 4.825.1 ± 5.255.2 ± 12.446.8 ± 13.071.7 ± 16.1
DCA∗ †20.3 ± 7.813.2 ± 4.024.8 ± 2.950.5 ± 16.450.5 ± 15.884.8 ± 10.4
  • Significant drug effect.

  • Significant group effect at both baseline and hyperemia.

  • legend DCA = dominant coronary artery; h-APV = time-averaged peak coronary flow velocity at maximal hyperemia; LAD = left anterior descending coronary artery; r-APV = time-averaged peak coronary flow velocity at baseline.