Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova · 2019
[Magnetic resonance spectroscopy data in the prognosis of consciousness recovery in patients with vegetative state].
СтатьяНазвание и аннотация: Оригинал на русском
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Kondratyeva E A, Diment S V, Kondratyev S A, Ivanova N E, Bukkieva T A, Efimtsev A Yu, Trufanov G E, Kondratyev A N, Laurens S
Аннотация
AIM: To study the prognostic value of magnetic resonance spectroscopy (MRS) in patients with vegetative state/unresponsive wakefulness syndrome (VS/UWS).
MATERIAL AND METHODS: Thirty-four patients with VS/UWS underwent multi-voxel MRS (thalamus, globus pallidus, putamen, internal capsules, fornix, brainstem, temporal and frontal cortex). Subjects were grouped according to etiology: 22 patients with traumatic brain injury (TBI) (group 1) and 12 patients with a hypoxia (group 2). The groups were matched by age and duration of UWS (mean 2, 3 months). The CRS-R was used to identify the first signs of consciousness during hospitalization and 6-12 months later. Outcomes of the patients with TBI were as follows: chronic VS/UWS (n=6), minimally conscious state (MCS) plus (n=9), emergence from MCS (EMCS) (n=7). Outcomes of the patients with hypoxia were: chronic vegetative state (n=10), minimally conscious state (MCS) (n=2).
RESULTS: The decrease in the NAA/Cr ratio in thalamus, capsula interna, temporal cortex are correlated with poor outcome in both groups. Higher rates of NAA/Cr in these structures are correlated with further recovery of consciousness. The decrease in the ratio of NAA Cr and NAA/NAA+Cho+Cr in the midbrain is correlated with poor outcome only in UWS with hypoxia.
CONCLUSION: The results suggest that the MRS allows to more accurately predicting the outcome in VS/UWS patients with hypoxic brain damage, as well as in UWS patients with TBI, who have recovered consciousness to the level of EMCS.
MATERIAL AND METHODS: Thirty-four patients with VS/UWS underwent multi-voxel MRS (thalamus, globus pallidus, putamen, internal capsules, fornix, brainstem, temporal and frontal cortex). Subjects were grouped according to etiology: 22 patients with traumatic brain injury (TBI) (group 1) and 12 patients with a hypoxia (group 2). The groups were matched by age and duration of UWS (mean 2, 3 months). The CRS-R was used to identify the first signs of consciousness during hospitalization and 6-12 months later. Outcomes of the patients with TBI were as follows: chronic VS/UWS (n=6), minimally conscious state (MCS) plus (n=9), emergence from MCS (EMCS) (n=7). Outcomes of the patients with hypoxia were: chronic vegetative state (n=10), minimally conscious state (MCS) (n=2).
RESULTS: The decrease in the NAA/Cr ratio in thalamus, capsula interna, temporal cortex are correlated with poor outcome in both groups. Higher rates of NAA/Cr in these structures are correlated with further recovery of consciousness. The decrease in the ratio of NAA Cr and NAA/NAA+Cho+Cr in the midbrain is correlated with poor outcome only in UWS with hypoxia.
CONCLUSION: The results suggest that the MRS allows to more accurately predicting the outcome in VS/UWS patients with hypoxic brain damage, as well as in UWS patients with TBI, who have recovered consciousness to the level of EMCS.