[Pre-eclampsia versus essential hypertension--the course of pregnancy, labor and fetal outcome].

By means of an exact nephrologic examination 6 weeks post partum of 128 patients with hypertension in pregnancy an exact classification in preeclampsia (46 per cent), chronic hypertension (34%) and superimposed preeclampsia (13 per cent) is possible. In cases of essential hypertension a hypotensive therapy is necessary.