[Autonomic system disorders in endemic goiter].

Vegetative tonicity, reactivity and provision were studied in 88 patients with endemic goiter (EG) aged 18 to 40 years. Vegetative dystonia syndrome (VDS) in EG develops as parasympathicotonia. Subjective symptoms of vegetative dysregulation are more pronounced in high reactive and personality anxiety, in neurotism, they do not depend on extra- or introversion. VDS in EG deteriorates mental and physical performance, attention. Vegetative reactivity in EG becomes hypersympathicotonic. Vegetative dystonia affects reaction to the disease. Prolapse of heart valves often seen in EG patients results rather from hypothyroid edema of the myocardium than from VDS. Therefore, treatment of such patients with beta-adrenoblockers is not grounded. Vegetative dysregulation gradually attenuates in response to replacement hormone therapy with thyroxine.