Beneficial effects of the dihydropyridine calcium antagonist, FR 34235, in a chronic coronary occlusion model.
Administration of FR 34235 reduced aortic blood pressure and increased cardiac output in anesthetized dogs with an ameroid-induced coronary artery occlusion. Following FR 34235, there was an increase in perfusion within normal myocardium and ischemic subepicardium. Ischemic zone flow to subepicardium and subendocardium were both significantly increased when aortic pressure was held at control levels. The data demonstrate marked enhancement in oxygen supply to an area distal to a chronic coronary occlusion by a new calcium antagonist, FR 34235.
D000818:Animals; D002121:Calcium Channel Blockers / Q000494:pharmacology*; D003326:Coronary Circulation / Q000187:drug effects; D003327:Coronary Disease / Q000188:drug therapy / Q000503:physiopathology*; D004285:Dogs; D006439:Hemodynamics / Q000187:drug effects; D009543:Nifedipine / Q000031:analogs & derivatives / Q000494:pharmacology*; D011725:Pyridines / Q000494:pharmacology*
D002121:Calcium Channel Blockers; D011725:Pyridines; C035100:nilvadipine; D009543:Nifedipine