Variations of catecholamines in mixed shock. Therapeutic implications. Experimental and clinical investigations.

The variations of catecholamines, cortisol and aldosterone in mixed shock (traumatic, hemorrhagic and septic) were studied experimentally and clinically. In the stage of collapse adrenaline decreased by 81.4% and noradrenaline by 62.6% as compared with the preoperative values. These decreases were found to be directly proportional to the decrease of arterial blood pressure, pulse amplitude and diuresis as well as to the slowing down or even stop of microcirculation. The value of plasma cortisol increased in the stage of collapse by 98.3% and that of aldosterone by 66.27% as compared with the preoperative values. Treatment with a pharmacodynamic sympatheticolytic-vasopressor-adrenocortical mixture is recommanded when the blood pressure remains below 50--60 mm Hg for 1--2 hrs and when the treatment for the correction of hypovolemia with fluids and sympatheticolytics has failed. Clinically, this treatment gave good results in 34 of the 58 cases studied (58.6%).