[Hemodynamics and metabolic parameters during use of the antihypertensive agent diazoxide].

The antihypertensive remedy diazoxide (hyperstat) was applied in 11 patients with hypertension of the clinical stages III and IV. The patients were applied a single intravenous injection of 20 ml = 300 mg diazoxide. The behaviour of blood pressure, pulse, blood sugar and cortisol level as well as of the blood supply in rest of the musculature of the extremities was tested and evaluated. Within 1 minute after the injection the systolic blood pressure decreased by 12%, the diastolic by 20%. After an above all show increase of the diastolic blood pressure once more a slight decrease of the systolic blood pressure followed after 90 minutes, which lasted several hours. Also after 24 hours the blood pressure did not reach the original value. The increase of the pulse rate was clinically not relevant. The blood glucose increased in the 5th minute, after 15 minutes it reached its culmination point and, beginning with the 30th minute it showed a decreasing tendency. The initial values were got after 180 minutes. After the 15th minute began a relative short-term decrease of the plasma cortisol, which, however, again increased after 60 minutes. On the other hand the occlusion-plethysmographic investigations of the veins showed an increasing blood flow in rest up to 3 hours after the injection.