Sleep spindles in the initial stages of the vegetative state

G. D'Aleo, P. Bramanti, R. Silvestri, L. Saltuari, F. Gerstenbrand, R. Di Perri

Research output: Contribution to journalArticlepeer-review


The aim of this study was to look for the presence of spindling in the different stages of remission of the vegetative state to underline all possible correlations with lesional sites, severity of coma and final outcome. The nocturnal polygraphic recordings from 30 patients were examined: 20 (15M, 5F, mean age 31.7 years, range 16-41) had originally suffered a traumatic brain injury, 10 (4M, 6F, mean age 40.5 years, range 24-48) had hypoxic brain lesions. Evidence of spindling, always reduced in density and duration, was found in 44% of these patients, prevalently in the traumatic patients (53.3% versus 30% of hypoxic patients). No subjects in the full stage 0, 0-1 of the vegetative state (apallic syndrome) presented spindling. No significant correlation was found between spindling and the following parameters: gender, the time between the onset of coma and the polygraphic recording, or the site of the lesion.

Original languageEnglish
Pages (from-to)347-351
Number of pages5
JournalItalian Journal of Neurological Sciences
Issue number7
Publication statusPublished - Jul 1994


  • sleep
  • spindles
  • vegetative state

ASJC Scopus subject areas

  • Neuroscience(all)
  • Clinical Neurology


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