Abnormal sharp transients on electroencephalograms in preterm infants with periventricular leukomalacia - 29/08/11
, Fumio Hayakawa, MD, Toru Kato, MD, Koichi Maruyama, MD, Tetsuo Kubota, MD, Motomasa Suzuki, MD, Hiroyuki Kidokoro, MD, Kuniyoshi Kuno, MD, Kazuyoshi Watanabe, MD
Reprint requests: Akihisa Okumura, MD, Department of Pediatrics, Nagoya University, Graduate School of Medicine, 65 Tsurumai-cho, Showa-Ku, Nagoya, Aichi, 466–8550, Japan.Abstract |
Objective To determine the clinical significance of abnormal sharp transients other than positive rolandic sharp waves (PRS), electroencephalograms were used for the diagnosis of periventricular leukomalacia (PVL).
Study design We evaluated 126 electroencephalograms from 93 preterm infants; 31 infants had PVL, and 62 were control infants. Frontal sharp waves (FS) were defined as sharp transients of positive polarity with an amplitude >100 μV. Occipital sharp waves (OS) were defined as those of negative polarity with an amplitude >150 μV. FS, OS, or PRS were considered to be present when there were >0.1 per minute.
Results The number of FS per minute was significantly higher in the PVL group than in the control group during days 0 to 4 and 5 to 7. The number of OS per minute was also significantly higher in the PVL group than in the control group during days 0 to 4, 5 to 7, and 8 to 14. The sensitivity of FS or OS was relatively high but that of PRS was low. The presence of two or more types of abnormal sharp transients was correlated with a poor outcome.
Conclusions FS or OS may be useful for predicting which infant will have PVL.
Le texte complet de cet article est disponible en PDF.Abbreviations : EEG, FS, OS, PRS, PVL
Plan
Vol 143 - N° 1
P. 26-30 - juillet 2003 Retour au numéro
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