Significance of ambulatory EEG on prognosis evaluation of patients with coma

Abstract

The result of ambulatory EEG (AEEG) examination on 168 comatose patients showed that AEEG grading was negatively correlated with Glasgow Coma Scale (GCS) score (r = - 0.995, P = 0.005). More serious the patients' condition was and the deeper coma they were in, the lower GCS score and the higher EEG grade they would got. Among all patients, there were 84 cases with AEEG grade Ⅱ, in whom 74 cases (88.10% ) had favorable prognosis; 26 cases (49.06% ) of 53 cases with grade Ⅲ and 4 cases (12.90% ) of 31 cases with grade Ⅳ - Ⅴ had favorable prognosis. The differences between groups had statistical significance (χ2 = 60.565, P = 0.042). AEEG is non-invasive, repeatable and easy to operate, which is in favor of the neurological evaluation and prognosis of patients with coma. DOI: 10.3969/j.issn.1672-6731.2016.10.013

Keywords

• Coma
• Prognosis
• Electroencephalography