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HRV (Heart Rate Variability) – A New Parameter for the Autonomic Nervous System and Correlation of Psychological Disorders?

HRV (Heart Rate Variability) – A New Parameter for the Autonomic Nervous System and Correlation of Psychological Disorders?

In depressive patients power intensity (respectively higher frequencies) and recovery were reduced; heart rate and pulse-respiration quotient (QPR) during the day is flattened; heart rate variability (gender and age matched) is reduced in comparison to normal. In psychotic patients loss of the daily course of vegetative quotient as well as heart rate and pulse respiration quotient (QPR) could be observed; additionally the power intensity is higher in the high frequency range compared to healthy controls. Interesting is a high parasympathetic activity with a loss of its daily course structure.

In sleep disturbed patients reversal of autonomic activation between day and night based on a reduced capability regulation of the autonomic nervous system. Sympathetic activity during the night is elevated leading to a reduced recovery. In burnout patients (fatigue syndrome) power intensity is very low caused by a reduced parasympathetic activity; frequently a reversal of autonomic activation between day and night was seen. Due to the different structure HRV variables may be helpful for diagnosis of psychological disorders in the future.