Hyperventilation Activation on EEG Recording in Childhood
| Autor: | Tohru Konishi, Tadayuki Okuda, Murakami M, Miwa Yamatani |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
Adult
Male Adolescent Electrodiagnosis Partial Pressure Electroencephalography Eeg recording Child Development Hypocapnia Hyperventilation medicine Humans Child Ultrasonography medicine.diagnostic_test Age differences Respiration Age Factors Carbon Dioxide medicine.disease Oxygen Neurology Cerebral blood flow Cerebrovascular Circulation Anesthesia cardiovascular system Female Neurology (clinical) medicine.symptom Psychology circulatory and respiratory physiology |
| Zdroj: | Epilepsia. 35:1199-1203 |
| ISSN: | 1528-1167 0013-9580 |
| DOI: | 10.1111/j.1528-1157.1994.tb01789.x |
| Popis: | Summary: In 66 children with no neurologic symptoms, we analyzed EEG slowing quantitatively during standardized hyperventilation (HV) activation. [respiration rate (RR) of 30/min, threefold increase of VE, and 4-min duration]. Changes in cerebral blood flow (CBF) and velocity were also monitored in right common carotid artery by Doppler ultrasonic method. Decreases in PCO, and CBF were the fundamental factors producing EEG slowing during HV. The degree of EEG slowing was greater in younger children and well proportional to age with such standardized HV. The decrease in CBF was much greater in younger children at the beginning of HV and may be related to the significant EEG slowing. EEG slowing was not related to the degree of decrease in CBF. The age difference in EEG response to HV in children and adults may be due to the differences in the decrease in the CBF volume and sensitivity of the CNS to the change in CBF. |
| Databáze: | OpenAIRE |
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