The effect of generalized alpha-receptor stimulation on regional myocardial blood flow distal to a severe coronary artery stenosis.

Adenosine/pharmacology Adrenergic alpha-Agonists/pharmacology Animals Blood Pressure Constriction Coronary Circulation/drug effects Coronary Disease/drug therapy,etiology,physiopathology Coronary Vessels/drug effects Norepinephrine/pharmacology Oxygen Consumption Propranolol/pharmacology Receptors, Adrenergic/drug effects Receptors, Adrenergic, alpha/drug effects Swine Vascular Resistance

Adrenergic alpha-Agonists Receptors, Adrenergic Receptors, Adrenergic, alpha Propranolol Adenosine Norepinephrine