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- M D Cortese, F Riganello, F Arcuri, M E Pugliese, L F Lucca, G Dolce, and W G Sannita.
- Institute S. Anna and RAN (Research in Advanced Rehabilitation), Crotone, Italy. d.cortese@istitutosantanna.it.
- Bmc Neurol. 2015 Oct 8; 15: 186.
BackgroundDespite evidence from neuroimaging research, diagnosis and early prognosis in the vegetative (VS/UWS) and minimally conscious (MCS) states still depend on the observation of clinical signs of responsiveness. Multiple testing has documented a systematic variability during the day in the incidence of established signs of responsiveness. Spontaneous fluctuations of the Coma Recovery Scale-revised (CRS-r) scores are conceivable.MethodsWe retrospectively analyzed the CRS-r repeatedly administered to 7 VS/UWS and 12 MCS subjects undergoing systematic observation during a conventional 13 weeks. rehabilitation plan.ResultsThe CRS-r global, visual and auditory scores were found higher in the morning than at the afternoon administration in both VS/UWS and MCS subgroups over the entire period of observation. The probability for a VS/UWS subject of being classified as MCS at the morning testing at least once during the 13 weeks. observation was as high as 30%, i.e., compatible with the reported misdiagnosis rate between the two clinical conditions.ConclusionsMultiple CRS-r testing is advisable to minimize the risk of misclassification; estimates of spontaneous variability could be used to characterize with greater accuracy patients with disorder of consciousness and possibly help optimize the rehabilitation plan.
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