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Sleep in patients with spontaneous panic attacks.

P J Hauri1, M Friedman, C L Ravaris

  • 1Sleep Disorders Center, Mayo Clinic, Rochester, Minnesota 55905.

Sleep
|August 1, 1989
PubMed
Summary
This summary is machine-generated.

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Panic disorder patients experience disrupted sleep, including longer sleep onset and reduced sleep efficiency. Nocturnal panic attacks, distinct from other sleep disturbances, were observed during specific sleep stages.

Area of Science:

  • Sleep Medicine
  • Psychiatry
  • Neuroscience

Background:

  • Panic disorder is a condition characterized by recurrent, unexpected panic attacks.
  • Sleep disturbances are frequently reported in individuals with panic disorder.
  • The specific nature of sleep abnormalities and nocturnal panic attacks in panic disorder remains incompletely understood.

Purpose of the Study:

  • To investigate sleep patterns and the occurrence of nocturnal panic attacks in patients diagnosed with panic disorder.
  • To compare sleep characteristics between panic disorder patients and matched healthy controls.
  • To differentiate nocturnal panic attacks from other sleep-related phenomena like sleep terrors.

Main Methods:

  • Polysomnographic recordings were conducted over three consecutive nights for 24 drug-free panic disorder patients and their age- and sex-matched controls.

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  • Sleep parameters including sleep latency, sleep efficiency, and movement activity were analyzed.
  • Nocturnal panic attacks were monitored and characterized, noting their timing and associated sleep stages.

    • Main Results:

    • Panic disorder patients exhibited significantly longer sleep latency and lower sleep efficiency compared to controls.
    • Increased overall movement time and body movements during stage 2 sleep were observed in panic disorder patients.
    • Eight panic attacks originating from sleep were recorded, with six occurring during the transition between stage 2 and stage 3 sleep.

    Conclusions:

    • Sleep disturbances, including reduced sleep efficiency and increased motor activity, are prevalent in panic disorder.
    • Nocturnal panic attacks in panic disorder patients are a distinct phenomenon, differing from sleep terrors and dream anxiety attacks.
    • These findings highlight the complex interplay between panic disorder and sleep physiology, suggesting unique neurobiological underpinnings for nocturnal panic attacks.