[The autonomic regulation of the heart rhythm in patients with iron-deficiency anemia].

Overall 155 patients suffering from iron deficiency anemia were subjected to bicycle ergometry to estimate autonomic regulation of cardiac rhythm using variation pulsometry readings. The changes in vegetative regulation proceed by the type of sympathicotonia which increases clearly as the disease gravity rises. Moderate sympathicotonia is an adequate compensatory mechanism that favours adaptation of the body to anemia. On the contrary, excessive sympathicotonia is an unfavourable factor producing an adverse effect on work fitness of anemic patients. This requires the elaboration of measures aimed at eliminating in necessary cases the excessive activation of the sympathetic nervous system in patients suffering from iron deficiency anemia.