Neurorehabilitation for severe disorder of consciousness: the S. Anna - RAN operational model.

The operational model and strategies designed for use in the S. Anna - Research in Advanced Neurorehabilitation Institute for the care and neurorehabilitation of subjects in the vegetative or minimally conscious states are described here. A total of 722 patients were admitted, cared for and discharged from the institute in the period 1998-2009.

Decreasing incidence of paroxysmal sympathetic hyperactivity syndrome in the vegetative state.

Objective: To update knowledge of the incidence of paroxysmal sympathetic hyperactivity (PSH, also referred to as dysautonomia), an emergency condition tentatively attributed to sympathetic paroxysms or diencephalic-hypothalamic disarrangement associated with severe diffuse brain axonal damage or hypoxia. This condition is reportedly common in the vegetative state, threatens survival and affects outcome.

Methods: The results of a retrospective study on 333 subjects in a vegetative state admitted to a dedicated unit in 1998-2005 are compared with a survey on patients admitted to the same unit in 2006-2010.

Heart rate variability and the central autonomic network in the severe disorder of consciousness.

Objective: To review the applicability of heart rate variability measures in research on severe disorder of consciousness.

Methods: The available evidence on the correlation between heart rate variability measures and the outcome or residual functional state/responsiveness of severely brain-injured patients (including those in vegetative or minimally conscious states) are reviewed and discussed with reference to the central autonomic network model.

Results And Conclusion: Heart rate variability analyses appear to be applicable to assess residual or emerging (higher level) function in brain-injured patients with disordered consciousness and to predict outcome.