Analysis of the feature of abnormal electroencephalogram of 104 newborns with hypoxic-ischemic encephalopathy

doi:10.3969/j.issn.1674-3806.2009.07.14

Abstract：Objective To approach the feature of abnormal electroencephalogram(EEG) of newborn with hypoxic-ischemic encephalopathy(HIE).Methods One hundred and four newborns with HIE who visited in Guangxi Women and Children Health Hospital from January 2006 to October 2008 and diagnosed as abnormal EEG in first time were retrospectively analyzed.Results (1)Of the 104 newborns with abnormal EEG, there were low tension and slowly frequency in 44 patients, electrical silence in 28 patients, eleptiform discharge in 22 patients, burst suppression in 8 patients and dissymmetry in 2 patients. (2)There were 16 patients with mild HIE, of them there were low tension and slowly frequency in 12 patients, eleptiform discharge in 4 patients;There were 46 patients with moderate HIE, of them there were low tension and slowly frequency in 28 patients, eleptiform discharge in 10 patients, electrical silence in 4 patients, and burst suppression in 2 patients and dissymmetry in 2 patients;There were 42 patients with severe HIE, of them there were low tension and slowly frequency in 4 patients, eleptiform discharge in 8 patients, electrical silence in 24 patients and burst suppression in 6 patients.Conclusion The main pattern of abnormal EEG of newborn with HIE are low tension and slowly frequency, electrical silence and burst suppression;the degree of EEG is in accordance with clinical grading of the newborn with HIE.