isoproterenol , ( 0.1 microgram/kg/min ) , increased heart rate by 66 +/- 8 % , lv dp/dt by 58 +/- 5 % , and csa by 17 +/- 3 % , while it decreased mean arterial pressure by 12 +/- 1 % and mcr by 44 +/- 5 % .
C0022245
isoproterenol
C0039231
increased heart rate