Cardiovascular Function in Shock: Responses to Volume Loading and Isoproterenol Infusion

摘要: Hemodynamic responses to volume loading with infusion of dextran-40 and myocardial stimulation isoproterenol in 23 patients shock from hemorrhage, trauma, or sepsis, 10 healthy controls were studied. Responses the control moderate dextran marked isoproterenol. Shock divided into three groups according response cardiac index dextran-40: group I, >50% increase; II, 15 50% III, <15% increase a decrease. The central venous pressure who responded (group I) generally rose moderately that those failed respond III) increased without improvement stroke index, suggesting failure. Group II showed at expense pressure, relative insufficiency. I infusion, indicating circulatory failure primarily resulted return. All gro...