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The purpose of the paper was to assess the effects of oral contraceptives on selected parameters of the homeostatic control system in women having a sudden disorder of the auditory and/or balance system. The study included 105 young women divided into two groups: Group I--52 women with the disorder of the auditory and/or balance system using hormonal contraceptives for at least 2 months, aged 20-49; and Group II--53 women without any disorder of the auditory and/or balance system using hormonal contraceptives for at least 2 months, aged 18-40. The patients included in the study underwent a full otoneurological evaluation, detailed laryngological diagnostics and an evaluation of selected parameters of the homeostatic control system--fibrinogen level, D-dimer level, evaluation of APTT and PT indicator, plasma estradiol and progesterone with the Roche Cobas analyser by means of chemiluminescence. The vertigo occurring in the study group was most often central (59.6% of cases), mixed with compensation in 36.6% of cases, and peripheral only in 3.8% of cases, indicating labyrinth damage in 40.4% of cases. An analysis of the progesterone level, considering the menstrual cycle phase in the group, showed that its value was abnormal in 51.0% of women in the study group and 47.1% in the control group. In their own studies, the authors observed that the estradiol level in the plasma, considering the menstrual cycle phase in the study group, was abnormal in 41.2% of women and that the differences in its concentration were statistically significant in the study and control groups (p = 0.005), which may have a negative impact on the possibility of a thromboembolic episode.

european archives of oto-rhino-laryngology/european archives of oto-rhino-laryngology and head and neck

Effects of oral contraceptives on selected parameters of the homeostatic control system in young women having a sudden disorder of the auditory and/or balance system