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Abnormal sharp transients on electroencephalograms in preterm infants with periventricular leukomalacia
Akihisa Okumura1, Fumio Hayakawa, Toru Kato
1Department of Pediatrics, Nagoya University Graduate School of Medicine, Aichi, Japan. okamura@med.nagoya-u.ac.jp
The Journal of Pediatrics
|August 14, 2003
Summary
Frontal (FS) or occipital sharp waves (OS) on electroencephalograms may help predict periventricular leukomalacia (PVL) in preterm infants. These abnormal EEG findings were more frequent in infants with PVL compared to controls.
Area of Science:
- Neonatal neurology
- Clinical neurophysiology
Background:
- Periventricular leukomalacia (PVL) is a significant cause of neurological impairment in preterm infants.
- Electroencephalography (EEG) is a critical tool for assessing brain function in neonates.
Purpose of the Study:
- To investigate the diagnostic utility of specific EEG sharp transients, excluding positive rolandic sharp waves (PRS), for identifying PVL.
- To correlate EEG findings with clinical outcomes in preterm infants.
Main Methods:
- Analysis of 126 EEGs from 93 preterm infants (31 with PVL, 62 controls).
- Definition of frontal sharp waves (FS) and occipital sharp waves (OS) based on polarity and amplitude.
- Quantification of FS, OS, and PRS frequency per minute.
Main Results:
- Significantly higher frequencies of FS and OS were observed in the PVL group compared to controls during the first two weeks of life.
- FS or OS demonstrated higher sensitivity for PVL detection than PRS.
- The presence of multiple types of abnormal sharp transients correlated with poorer infant outcomes.
Conclusions:
- Frontal sharp waves (FS) and occipital sharp waves (OS) show promise as early EEG biomarkers for predicting PVL in preterm infants.
- These specific EEG patterns may aid in the early diagnosis and management of PVL.