%0 Journal Article %1 Okumura2003 %A Okumura, Akihisa %A Hayakawa, Fumio %A Kato, Toru %A Maruyama, Koichi %A Kubota, Tetsuo %A Suzuki, Motomasa %A Kidokoro, Hiroyuki %A Kuno, Kuniyoshi %A Watanabe, Kazuyoshi %D 2003 %J J Pediatr %K Cerebral Palsy; Echoencephalography; Electroencephalography; Follow-Up Studies; Gestational Age; Humans; Infant, Newborn; Premature; Leukomalacia, Periventricular; Retrospective Severity of Illness Index %N 1 %P 26--30 %T Abnormal sharp transients on electroencephalograms in preterm infants with periventricular leukomalacia. %V 143 %X 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 microV. Occipital sharp waves (OS) were defined as those of negative polarity with an amplitude >150 microV. 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.

@article{Okumura2003, 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 microV. Occipital sharp waves (OS) were defined as those of negative polarity with an amplitude >150 microV. 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.}, added-at = {2014-07-19T20:57:18.000+0200}, author = {Okumura, Akihisa and Hayakawa, Fumio and Kato, Toru and Maruyama, Koichi and Kubota, Tetsuo and Suzuki, Motomasa and Kidokoro, Hiroyuki and Kuno, Kuniyoshi and Watanabe, Kazuyoshi}, biburl = {https://www.bibsonomy.org/bibtex/2611f53c54a832cf05d5fcd5be75dde09/ar0berts}, groups = {public}, interhash = {6314f67d934909388c322a9ca904d8e7}, intrahash = {611f53c54a832cf05d5fcd5be75dde09}, journal = {J Pediatr}, keywords = {Cerebral Palsy; Echoencephalography; Electroencephalography; Follow-Up Studies; Gestational Age; Humans; Infant, Newborn; Premature; Leukomalacia, Periventricular; Retrospective Severity of Illness Index}, month = Jul, number = 1, pages = {26--30}, pii = {S0022347603001823}, pmid = {12915820}, timestamp = {2014-07-19T20:57:18.000+0200}, title = {Abnormal sharp transients on electroencephalograms in preterm infants with periventricular leukomalacia.}, username = {ar0berts}, volume = 143, year = 2003 }