[The heart rate variability during the balneotherapeutic treatment of tension-type headache based at the "Ust-Kachka" health resort].

A total of 94 patients suffering tension-type headache were admitted for the treatment at the "Ust-Kachka" health resort. They were divided into three depending on the chosen therapeutic modality. The patients of group 1 were offered bromide-iodine baths in combination with transcranial electric brain stimulation. In the second group, balneotherapy was combined with endonasal electrophoresis of mildronate. The patients of the control group were managed with the use of balneotherapeutic procedures alone. Evaluation of the heart rate variability revealed a significant decrease of the overall spectrum power. The very low frequency (VLF) component proved to be predominant spectral constituent. The results of the orthostatic test reflected the different degree of disturbances of vegetative reactivity in all the three groups; it varied from the excessive sympathetic supply to the paradoxical reaction. The post-treatment period was characterized by well-apparent positive dynamics in the vegetative sphere of the patients in terms of overall power spectrum with evident priority of its parameters in the first group.