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Journal of the Korean Society of Neonatology 1999;6(1):58-63.
Published online January 1, 2001.
The Significance of the EEG, Brainstem Auditory Evoked Potential ( BAEP ) and Brain Ultrasonographic Findings of Asphyxiated Newboms on the Neurological Outcome.
Kug Hwan Kim, Sang Hyun Oh, Young Il Rho, Kyoung Rae Moon, Sang Kee Park
Department of Pediatrics, Chosun University Medical College, Kwangju, Korea.
The objective of this study was to analyze the relationship between the electrophysiological studies(EEG and BAEP) and brain ultrasonography and the prognosis of the newborn infants with asphyxia.
Clinical records, including electrophysiological findings of EEG and BAEP and brain ultrasonography, of 29 term infants with neonatal asphyxia, who had been admitted to the Pediatric Department of Chosun University Hospital between January 1994 and June 1997 were reviewed retrospectively.
Out of the 29 cases that returned for follow up, 23 cases were neurodevelopmentally normal, but 6 cases showed delayed development on the Korean Denver Developmental Scale Test(KDDST). Of 19 cases with abnormal EEG findings, 5 showed delayed developrnent on the KDDST(P>0.05). Follow up EEG was performed in 10 cases', 8 of them were normalized, and two remained abnormal without delayed development on the KDDST. Of 8 cases with abnormal brain ultrasonographic findings, 5 showed delayed development on the KDDST(P<0.05). Of 12 with abnormal BAEP findings, 3 showed delayed KDDST(P>0.05). Follow up BAEP was performed in 8 cases, and all cases were normal.
These results suggest that abnormal findings of EEG and BAEP in the asphyxiated term newborn were reversible, but abnormal brain ultrasonographic findings, especially intracranial hemorrhage, were significantly correlated with delayed development.
Key Words: Neonatal asphyxia; EEG; Brain ultrasonography; BAEP
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