Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova · 2025
[Pathogenetic aspects of the effects of changes in the geomagnetic field on the vegetative regulation and the risk of vascular disorders].
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Khudayberganov N Yu, Adambaev Z I, Kilichev I A
Аннотация
OBJECTIVE: To evaluate the effect of magnetic storms on heart rate variability (HRV) and the predicted risk of stroke in patients with somatoform autonomic dysfunction (SAD).
MATERIAL AND METHODS: The study included 141 patients with SAD (80 with persistent type, 61 with paroxysmal type) and 67 healthy subjects (control group) with a mean age of 45±1.2 years. The diagnosis was confirmed according to ICD-10 (F45.3). HRV was recorded using the apparatus for assessing the autonomic nervous system, and spectral characteristics and temporal (transient) HRV indicators were analyzed. Geomagnetic activity was assessed using the Kp-index of the NOAA Space Weather Prediction Center, as well as the Geophysical Service of the Russian Academy of Sciences.
RESULTS: In patients with SAD, HRV rates were significantly reduced compared with controls, especially in those with the paroxysmal type. During magnetic storms (Kp>5), the standard deviation normal to normal (SDNN), the root mean square of standard deviation (RMSSD) between adjacent RR intervals, the high-frequency component (HF), and the low-frequency component (LF) were further reduced. The risk of stroke was 17.1% in patients with the paroxysmal type, 9.5% in those with the persistent type, and 7.5% in the control group. The correlation analysis revealed a negative association of SDNN and RMSSD with stroke risk (r=-0.995; r=-0.991) and a positive association of LF/HF with the risk (r=0.841).
CONCLUSION: Magnetic storms exacerbate autonomous imbalance and increase the predicted risk of stroke in patients with SAD, especially in those with paroxysmal type. Reducing HRV can serve as a reliable marker of vascular complications and justifies the need for preventive monitoring of meteosensitive patients.
MATERIAL AND METHODS: The study included 141 patients with SAD (80 with persistent type, 61 with paroxysmal type) and 67 healthy subjects (control group) with a mean age of 45±1.2 years. The diagnosis was confirmed according to ICD-10 (F45.3). HRV was recorded using the apparatus for assessing the autonomic nervous system, and spectral characteristics and temporal (transient) HRV indicators were analyzed. Geomagnetic activity was assessed using the Kp-index of the NOAA Space Weather Prediction Center, as well as the Geophysical Service of the Russian Academy of Sciences.
RESULTS: In patients with SAD, HRV rates were significantly reduced compared with controls, especially in those with the paroxysmal type. During magnetic storms (Kp>5), the standard deviation normal to normal (SDNN), the root mean square of standard deviation (RMSSD) between adjacent RR intervals, the high-frequency component (HF), and the low-frequency component (LF) were further reduced. The risk of stroke was 17.1% in patients with the paroxysmal type, 9.5% in those with the persistent type, and 7.5% in the control group. The correlation analysis revealed a negative association of SDNN and RMSSD with stroke risk (r=-0.995; r=-0.991) and a positive association of LF/HF with the risk (r=0.841).
CONCLUSION: Magnetic storms exacerbate autonomous imbalance and increase the predicted risk of stroke in patients with SAD, especially in those with paroxysmal type. Reducing HRV can serve as a reliable marker of vascular complications and justifies the need for preventive monitoring of meteosensitive patients.