norepinephrine , 0.1 micrograms/kg , increased left ventricular dp/dt significantly more ( 4208 +/- 828 mm hg/sec ) in dogs with cardiac denervation than in intact dogs ( 1029 +/- 280 mm hg/sec ) , p less than 0.01 , whereas responses to isoproterenol were similar in both groups .
C0225897
left
C0018787
cardiac