EEG power analyses: A new and early assessing method for cognitive impairment post cerebral venous thrombosis [EEG aktivite analizleri: Serebral venöz tromboz sonrasi{dotless} bilişsel bozukluklari{dotless}n erken deǧerlendirilmesinde yeni bir yöntem]

Cerebral venous thrombosis (cvt) is a rare and potential fatal disease,which comprises the occlusion of the flow in the cerebral venous system and its sinuses. electroencephalogram (eeg) characteristics can be analyzed to investigate the applied value in the assessment of cognitive impairment of the cvt patients. 100 patients (including cognitive impairment patients (ci) and cognitive normality patients (nci)) with cvt and 50 normal health persons (cn) were received from january 2009 to january 2011 at the department of neurology. all above of the subjects were analyzed by eeg. the eeg analyses results were compared with the moca scale with the methods of correlation analyses,clustering analyses and concordance analyses. the results indicated that ci patients had significantly lower eeg beta power relative to nci or cn group (both p<0.05),but no difference was found between nci and cn group (p>0.05). there was a better concordance (kappa=0.837) between the beta power and moca scoring for cvt patients. no significant differences were discovered between beta power analyses and moca scoring method for the cognitive impairment post cvt (p=0.297). in conclusion,the eeg beta power analyses technique may hold a considerable promise for the early assessment of cognitive impairment post cvt.