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Semin Neurol 2013; 33(02): 083-090
DOI: 10.1055/s-0033-1348965
Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

Coma and Disorders of Consciousness: Scientific Advances and Practical Considerations for Clinicians

Olivier Bodart
1   Department of Neurology, Coma Science Group, Cyclotron Research Center, University of Liège, University Hospital of Liège, Liège, Belgium
,
Steven Laureys
1   Department of Neurology, Coma Science Group, Cyclotron Research Center, University of Liège, University Hospital of Liège, Liège, Belgium
,
Olivia Gosseries
1   Department of Neurology, Coma Science Group, Cyclotron Research Center, University of Liège, University Hospital of Liège, Liège, Belgium
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Publikationsdatum:
25. Juli 2013 (online)

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Abstract

Recently, neuroscientists and clinicians have seen the rapid evolution of diagnoses in disorders of consciousness. The unresponsive wakefulness syndrome–vegetative state, the minimally conscious state plus and minus, and the functional locked-in syndrome have been defined using new neuroimaging techniques. Diffusion tensor imaging, positron emission tomography, functional magnetic resonance imaging, electroencephalography, and transcranial magnetic stimulation techniques have all promoted important discoveries in the field of disorders of consciousness. This has led to a better understanding of these patients' condition and to the development of new prognosis, therapeutic, and communication tools. However, low sensitivity and artifacts problems need to be solved to bring these new technologies to the single-patient level; they also need to be studied in larger scale and randomized control trials. In addition, new ethics questions have arisen and need to be investigated.

Keywords

unresponsive wakefulness syndrome–vegetative state - minimally conscious state - consciousness - functional magnetic resonance imaging (fMRI) - neuroimaging