in 14 patients with obstructive hypertrophic cardiomyopathy and angiographically normal coronary arteries , 8 with angina ( group b ) and 6 without ( group a ) , the effects of intravenous isoproterenol , 2 to 4 micrograms/min , followed by intravenous propranolol , 0.2 mg/kg , were studied .
C0002962
angina
C0033497
propranolol