Quantitative analysis of electroencephalogram in patients with massive cerebral infarction complicated with cerebral edema

Objective:To investigate the monitoring value of quantitative electroencephalogram(qEEG) in the patients with massive cerebral infarction complicated with cerebral edema.Methods:Thirty elderly patients with massive cerebral infarction complicated with cerebral edema and 30 examination elderly people were divided into the observation group and control group.The qEEG detected by the Bio-Logic electroencephalograph,DTABR,intracranial brain edema volume and National Institutes of Health Stroke Scale(NIHSS) in all patients were compared and analyzed within 6 h(T₁),24 h(T₂),72 h(T₃) and 168 h(T₄) of the onset of disease.Results:The DTABR in observation group was higher than that in control group(P<0.01),5 cases in observation group died during the treatment.The results of DTABR,cerebral edema volume and NIHSS score at each stage showed that the difference of which between T₁ and T₂ was not statistically significant(P>0.05).The change trends of DTABR index,NIHSS score and cerebral edema volume were similar,which arrived at the peak after 72 h,and began to decrease with the course of disease alleviating.The DTABR of the cure patients in observation group increased from T₁ to T₃,arrived at the peak,and gradually began to decrease from T₃ to T₄,while the declining trend of DTABR at T₃ and T₄ in the unhealed patients was not found.Conclusions:The qEEG can objectively and effectively evaluate the brain function in the patients with massive cerebral infarction complicated with cerebral edema,which can be expected to become an important bedside assessment means of brain function in neurological intensive care unit.