[Electroencephalographic monitoring during sevofluorane and halothane anesthesia in children].
Twenty-two children aged 5 to 15 years were examined. Ten children underwent fluorothane; 12 received a combination of sevofluorane and isofluorane. EEG was continuously recorded by a 9-channel computer-assisted encephalograph via bilateral electrode placement and BIS values were simultaneously measured. In the fluorothane group, EEG displayed a gradual reduction in basic rhythm, an increase in slow activity with the rhythm being recovered on emergence. The BIS index changed from 95-98 to 40-45 with a spike up to 78-84 on emergence. In the sevofluorane group, EEG recorded a pointed alpha rhythm, increased amplitude, and rhythm synchronization. The isofluorane anesthesia stage changed EEC patterns towards a reduction in cortical rhythm with slow fluctuations. The BIS value changed from 96-99 to 19-25 with 35-40 on anesthesia maintenance and up to 82-87 on emergence. The BIS data agree with EEG readings at all anesthesia stages.
Ivakhnenko
Iu I
IuI
Babaev
B D
BD
Ostreĭkov
I F
IF
Shishkov
M V
MV
Povarnin
O Ia
OIa
D000293:Adolescent; D000769:Anesthesia, Inhalation / Q000379:methods*; D018685:Anesthetics, Inhalation / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D002648:Child; D002675:Child, Preschool; D004359:Drug Therapy, Combination; D004569:Electroencephalography; D005260:Female; D006221:Halothane / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D006801:Humans; D008297:Male; D008738:Methyl Ethers / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D016343:Monitoring, Intraoperative / Q000379:methods*; D000077149:Sevoflurane
D018685:Anesthetics, Inhalation; D008738:Methyl Ethers; D000077149:Sevoflurane; D006221:Halothane