The value of quantitative electroencephalography in assessing collateral circulation and prognosis in middle cerebral artery occlusive cerebral infarction
The value of quantitative electroencephalography in assessing collateral circulation and prognosis in middle cerebral artery occlusive cerebral infarction
Objective To analyze the changes of electroencephalogram(EEG)indices in patients with cerebral infarc-tion and to explore the value of quantitative EEG on collateral circulation and prognosis of middle cerebral artery occlusive cerebral infarction.Methods Seventy-eight patients with imaging-confirmed middle cerebral artery occlusive stroke who were seen at the Department of Neurology,Lishui People's Hospital between June 2020 and December 2022 were select-ed.EEG,multitemporal CTA(mCTA),and NIHSS score were completed within 72 hours of onset.MBI scores were completed 3 months after onset.Collateral circulation was assessed using the mCTA ASITN/SIR-based collateral circula-tion assessment system.Correlation of EEG indices with mCTA ASITN/SIR-based collateral circulation scores,NIHSS scores,and MBI scores was assessed by Pearson correlation analysis.Results The EEG indices DAR,DTABR and pd-BSI were negatively correlated with ASITN/SIR collateral circulation scores(r=-0.734,-0.747,-0.759;P<0.01),MBI scores(r=-0.802,-0.810,-0.853;P<0.01)and positively correlated with NIHSS scores(r=0.876,0.875,0.813;P<0.01).The EEG indices DAR(t=6.374,P<0.001),DTABR(t=6.575,P<0.001)and pdBSI(t=9.171,P<0.001)were higher in the poor prognosis group than in the good prognosis group.ROC curve analysis showed that the EEG indices DAR,DTABR and pdBSI all had high predictive value for the risk of patients developing adverse outcomes in patients(AUC>0.87).Conclusion Quantitative EEG can effectively assess the severity of middle cerebral artery occlusive stroke and collateral circulation,and also has a good predictive value for 3-month neurological prognosis.