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  • Title: Probing consciousness in a sensory-disconnected paralyzed patient.
    Author: Rohaut B, Raimondo F, Galanaud D, Valente M, Sitt JD, Naccache L.
    Journal: Brain Inj; 2017; 31(10):1398-1403. PubMed ID: 28657353.
    Abstract:
    BACKGROUND: Diagnosis of consciousness can be very challenging in some clinical situations such as severe sensory-motor impairments. CASE STUDY: We report the case study of a patient who presented a total "locked-in syndrome" associated with and a multi-sensory deafferentation (visual, auditory and tactile modalities) following a protuberantial infarction. RESULT: In spite of this severe and extreme disconnection from the external world, we could detect reliable evidence of consciousness using a multivariate analysis of his high-density resting state electroencephalogram. This EEG-based diagnosis was eventually confirmed by the clinical evolution of the patient. CONCLUSION: This approach illustrates the potential importance of functional brain-imaging data to improve diagnosis of consciousness and of cognitive abilities in critical situations in which the behavioral channel is compromised such as deafferented locked-in syndrome.
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