A Comparison of Bispectral Index and Entropy During Sevoflurane Anesthesia Induction in Children with and without Diplegic Cerebral Palsy

Background: This study compared the correlation of bispectral index (BIS) or entropy with different sevoflurane concentrations between children with and without cerebral palsy (CP) during induction. Methods: For eighty-two children (40 CP and 42 non-CP children), anesthesia was induced with sevoflur...

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Published in:Entropy (Basel, Switzerland) Switzerland), 2019-05, Vol.21 (5), p.498
Main Authors: Kim, Young Sung, Won, Young Ju, Jeong, Hyerim, Lim, Byung Gun, Kong, Myoung Hoon, Lee, Il Ok
Format: Article
Language:English
Subjects:
Alertness
Anesthesia
Bone surgery
Carbon dioxide
Cerebral palsy
consciousness monitors
electroencephalography
Entropy
Medical personnel
Patients
Pediatrics
Sensors
sevoflurane
Software
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Summary:Background: This study compared the correlation of bispectral index (BIS) or entropy with different sevoflurane concentrations between children with and without cerebral palsy (CP) during induction. Methods: For eighty-two children (40 CP and 42 non-CP children), anesthesia was induced with sevoflurane. BIS and entropy (response entropy and state entropy (RE and SE)) were recorded before and after the induction of anesthesia at end-tidal sevoflurane concentrations of 1–3 vol%. The sedation status was assessed using an Observer’s Assessment of Alertness/Sedation scale. The ability to predict awareness was estimated using the area under the receiver-operator characteristic curve (AUC) analysis. Results: RE, SE and BIS values decreased continuously over the observed concentration range of sevoflurane in both groups. The SE values while awake and the RE, SE, BIS values at 3 vol% sevoflurane were lower in children with CP than in those without CP. The AUC of the BIS was significantly better than RE or SE in children without CP. The AUC of the BIS was not significantly higher than that of the RE or SE in children with CP. Conclusion: BIS seems better correlated than entropy with the clinical state of loss of response in children without CP, but not in those with CP.
ISSN:1099-4300
1099-4300
DOI:10.3390/e21050498