during dynamic coronary stenosis , produced by an intraluminal microballoon occluder which preserved active vasomotion in a stenosed segment of a proximal left circumflex coronary artery , intracoronary infusion of nifedipine ( 0.01 and 0.1 microgram/kg/min ) increased coronary blood flow ( cbf ) by 15 +/- 5.0 % ( p less than .05 ) and 50 +/- 11.6 % ( p less than .01 ) , respectively ( mean +/- s.e . ) and reduced stenosis resistance ( sr ) resulting in the alleviation of myocardial ischemia due to preferential vasodilation of large coronary arteries .
C0028066
nifedipine
C1371463
vasodilation