[Hyperventilation syncopes of a psychogenic nature].

As many as 61 patients with neurogenic syncopes were examined. Of these, 46 demonstrated well-defined signs of the hyperventilation syndrome within the structure of the clinical manifestations. The remaining 15 patients had no disorders indicated. The control group comprised 18 healthy persons. Thorough analysis of factors provoking syncopal, pre- and postsyncopal conditions, studies into the psychic and vegetative spheres including the respiratory system--all this made it possible to define a number of features characteristic of patients entering the groups under study. It has been shown that hyperventilation bears the function of the leading factor in the pathogenesis of vegetative disorders. In addition to chronic hyperventilation sequels, those disorders entail the occurrence of syncopal conditions. During treatment, of paramount importance is the correction of the impaired respiratory pattern, the reduction of neuromuscular excitability along with the use of psychotropic and vegetotropic remedies.