Figure 6

Basal and provoked coronary blood flow responses before and after pacing. Basal and provoked coronary blood flow in response to hyperinsulinemia pre-pacing (A) and after onset of dilated cardiommyopathy (B). Basal and provoked coronary blood flow in response to and near maximal coronary vasodilator doses of adenosine pre pacing (C) and at the onset of dilated cardiomyopathy (D). # p < 0.01 compared to baseline and to Old-Control.