to test the applicability of the new catheter tip manometer , cardiac hemodynamic parameters were determined in rats under various pathophysiologic conditions : several periods of asphyxia were followed by progressive depressions in heart rate , lvsp and lv dp/dtmax , and acute as well as chronic stimulation with catecholamines ( noradrenaline and isoproterenol ) and with triiodothyronine was characterized by a pronounced positive inotropic and chronotropic effect .
C0007412
catecholamines
C0022245
isoproterenol