Regularity of 24 h AEEG discharges in diagnose of patients with epilepsy and non-epilepsy

Objective To explore the features of epileptiform discharges on 24 h AEEG in patients with epilepsy and non-epilepsy.Methods AEEG was performed continuously for 24 h in 683 epilepsy patients and 295 non-epilepsy patients.The frequency of epileptiform discharges was analyzed.Results Of the 683 epilepsy patients,epileptiform abnormal discharges were observed in 443 (64.86%),non-specific abnormal in 91 (13.32%),and the total abnormality number was 534 (78.18%);of the 295 non-epilepsy patients,abnormal discharges were observed in 26 (8.81%),non-specific abnormal in 38 (12.88%),and the total number was 64 (21.79%).The significant differences were seen between the two groups in the total abnormality rate and epileptiform discharge rate (P＜0.001).Conclusion The frequency of the epileptiform discharges in epilepsy patients is higher than that in non-epilepsy patients.The AEEG in differential diagnosis of epilepsy and non-epilepsy is of important value.