[Role of electrolytes in the pathogenesis of arterial spasm and muscle cramps in varicose veins of the lower limbs].

The blood magnesium and calcium content and the blood flow in the limbs was studied in 68 patients suffering from varicosity, 42 of whom had trophic ulcers of the legs. It was established that diminished content of magnesium in blood serum contributes to the development of hypercalcemia, spasm of arterioles, and the occurrence of muscular convulsions and trophic disorders and thus plays an essential role in the pathogenesis of changes of the blood flow and trophic disorders. Administration of magnesium preparations in the preoperative period improved circulation in the limb and relieved muscular convulsions completely.