Prognosis in Essential Hypertension

CONSCIENTIOUS interval evaluation of sympathectomy for essential hypertension by comparison with control material is progressively defining the limitations and the applicability of this procedure.1 , 2 The same attention to control material is required when one considers the usefulness of very restrictive diets, interest in which has recently revived.3 , 4 Before applying these diets generally and indiscriminately, we should ask ourselves what the remote effects will be on the body electrolyte economy, on work capacity and hot-weather tolerance, on resistance to infection, on the basal metabolism, on carbohydrate tolerance and on fetal health in pregnancy. Finally and practically, how often is an extremely . . .