Correlation analysis of the severity of EEG and secondary epilepsy in elderly patients with cerebral infarction / 中国基层医药

ABSTRACT

Objective To investigate the correlation between EEG severity and secondary epilepsy in elderly patients with cerebral infarction.Methods 128 cases with cerebral infarction were selected as the research subjects. According to whether the patients happened secondary epilepsy,they were divided into the observation group (65 cases) and the control group (63 cases).The difference of EEG severity between the two groups was compared,and its correlation with secondary epilepsy was analyzed.Results There were 18 cases (27.69%)in the observation group graded as moderate differences,which was significantly higher than that in the control group of 12 cases (19.05%), the difference was statistically significant (χ2 =4.43,P =0.04).There were 23 cases (35.38%)in the observation group graded as severe differences,which was significantly higher than that in the control group of 9 cases (13.85%),the difference was statistically significant (χ2 =6.51,P =0.01 ).There were 21 cases(32.31%)of EEG changes of observation group being only diffuse abnormalities forms,which was significantly higher than that of the control group of 11 cases(17.46%),the difference was statistically significant (χ2 =4.18,P =0.04).There were 28 cases(43.08%)of EEG changes of the observation group being both focal abnormalities and diffuse abnor-malities forms,which was significantly higher than that of the control group of 14 cases(22.22%),the difference was statistically significant (χ2 =5.40,P =0.02).Compared open -closed test,hyperventilation provocation test results of the observation group being abnormal or not fit with the control group,the difference was not statistically significant (P >0.05).Conclusion According to the classification of EEG,EEG changes and EEG related tests to determine the severity of EEG.The more severe EEG,the greater the possibility of secondary epilepsy happen in patients with cerebral infarction.