the cardiac arteriovenous difference in norepinephrine was significantly larger in the patients with hcm than in the control subjects ( 73 +/- 77 versus 13 +/- 50 pg/ml , p less than 0.05 ) , as was the product of the arteriovenous difference in norepinephrine and coronary blood flow ( 7.3 +/- 7.3 versus 0.8 +/- 3.0 ng/min , p less than 0.05 ) .
C0018787
cardiac
C0007194
hcm