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Vasovagal syncope interrupting sleep?

C T P Krediet1, D L Jardine, P Cortelli

  • 1Department of Internal Medicine, Academic Medical Centre/University of Amsterdam, Amsterdam, The Netherlands.

Heart (British Cardiac Society)
|April 16, 2004
PubMed
Summary
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Recurrent nighttime loss of consciousness, often mistaken for epilepsy, may be vasovagal syncope. Further polysomnographic monitoring is needed to confirm this sleep-disrupting condition.

Area of Science:

  • Neurology
  • Sleep Medicine
  • Cardiology

Background:

  • Recurrent episodes of nighttime loss of consciousness interrupting sleep are a diagnostic challenge.
  • Differential diagnosis often includes epilepsy and vasovagal syncope.

Observation:

  • A cohort of 13 patients (10 female, mean age 45) presented with sleep-interrupting nocturnal syncope.
  • Patient histories suggested vasovagal syncope over epilepsy.

Findings:

  • Electroencephalographic (EEG) and tilt table testing results supported a diagnosis of vasovagal syncope.
  • The clinical presentation was more consistent with vasovagal syncope than epileptic seizures.

Implications:

  • Polysomnographic monitoring is crucial for confirming vasovagal syncope during sleep.

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  • The sporadic nature of episodes may complicate diagnosis despite the condition potentially being common.