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[Panic attacks in wakening and during sleep]

M Iu Bashmakov, V L Golubev

    Zhurnal Nevrologii I Psikhiatrii Imeni S.S. Korsakova
    |January 1, 1995
    PubMed
    Summary
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    Functional brain states influence panic attack (PA) symptoms. Sleep and arousal patterns differ in patients experiencing panic attacks during sleep versus wakefulness, impacting overall sleep quality.

    Area of Science:

    • Neuroscience
    • Sleep Medicine
    • Psychiatry

    Background:

    • Panic attacks (PA) are a significant clinical concern.
    • Understanding the underlying mechanisms of PA symptom formation is crucial.
    • The role of functional brain state, particularly during the sleep-wake cycle, remains incompletely understood.

    Purpose of the Study:

    • To investigate the role of functional brain state in the mechanisms of panic attack symptom formation.
    • To examine clinical and electrophysiological peculiarities of panic attacks occurring during different phases of the awakening-sleep cycle.

    Main Methods:

    • Studied 24 patients experiencing panic attacks.
    • Analyzed clinical and electrophysiological data related to panic attacks.
    • Correlated panic attack occurrence with different phases of the awakening-sleep cycle.

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    Main Results:

    • Identified distinct patterns in patients with panic attacks during sleep, awakening, or both.
    • Observed increased cerebral and vegetative activation in patients with panic attacks during sleep and during both sleep and awakening phases, particularly in a relaxed state.
    • Patients with panic attacks during awakening showed these changes during loading probes.
    • Noted sleep alterations including reduced sleep duration, increased sleep latency, and decreased delta-sleep in patients with panic attacks during sleep and during both sleep and awakening phases.

    Conclusions:

    • Functional brain state significantly influences panic attack symptomology.
    • Panic attacks exhibit unique characteristics depending on their occurrence during sleep or wakefulness.
    • Sleep alterations are associated with panic attacks occurring during sleep or across the sleep-wake cycle.