Comparison of propofol and inhalational anaesthetics for brain relaxation in neurosurgery: A systematic review and network meta-analysis

Background and Aims: The impact of anaesthetic agents on brain relaxation during neurosurgical procedures remains debatable. This study aimed to compare propofol and volatile anaesthetics during maintenance anaesthesia in achieving optimal brain relaxation in adults undergoing intracranial surgery....

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Main Authors: Patcharin Intarakhao, Peeraphong Thiarawat, Teerapon Dhippayom
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2025-08-01
Series:Indian Journal of Anaesthesia
Subjects:
Online Access:https://journals.lww.com/10.4103/ija.ija_189_25
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author Patcharin Intarakhao
Peeraphong Thiarawat
Teerapon Dhippayom
author_facet Patcharin Intarakhao
Peeraphong Thiarawat
Teerapon Dhippayom
author_sort Patcharin Intarakhao
collection DOAJ
description Background and Aims: The impact of anaesthetic agents on brain relaxation during neurosurgical procedures remains debatable. This study aimed to compare propofol and volatile anaesthetics during maintenance anaesthesia in achieving optimal brain relaxation in adults undergoing intracranial surgery. Methods: We searched PubMed, Embase, Cochrane, and EBSCO Open Dissertations databases from inception to February 2024. Randomised controlled trials (RCTs) comparing anaesthetic agents in patients over 18 years old undergoing neurosurgical procedures were included. The primary outcome was the proportion of subjects who achieved satisfactory brain relaxation, as indicated by a score of 1 on the 4-point Brain Relaxation Score (BRS). The revised Cochrane risk of bias tool was used to evaluate the quality of included studies. Risk ratios (RR) and 95% confidence interval (CI) were calculated using a random-effects model. The effects on brain relaxation were ranked using the surface under the cumulative ranking (SUCRA). We also evaluated the certainty of evidence using the Confidence in Network Meta-Analysis (CINeMA) online platform. Results: Out of 2,264 articles identified, 11 RCTs involving 1,367 participants were included. The chance of having satisfactory brain relaxation of the following anaesthetics appeared to be lower than propofol: sevoflurane (RR: 0.93; 95% CI: 0.79, 1.09), isoflurane (RR: 0.89; 95% CI: 0.60, 1.34), and desflurane (RR: 0.83; 95% CI: 0.65, 1.07), with moderate certainty of evidence. Propofol had the highest SUCRA ranking (81.4%). Conclusion: Although all anaesthetic agents had similar effects, propofol showed a tendency towards better brain relaxation during neurosurgery. Further robust evidence is required to confirm the potential advantages of propofol.
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spelling doaj-art-1ac24a19cf4e4a108fd8e0ec51811bfd2025-08-21T11:15:00ZengWolters Kluwer Medknow PublicationsIndian Journal of Anaesthesia0019-50490976-28172025-08-0169877077810.4103/ija.ija_189_25Comparison of propofol and inhalational anaesthetics for brain relaxation in neurosurgery: A systematic review and network meta-analysisPatcharin IntarakhaoPeeraphong ThiarawatTeerapon DhippayomBackground and Aims: The impact of anaesthetic agents on brain relaxation during neurosurgical procedures remains debatable. This study aimed to compare propofol and volatile anaesthetics during maintenance anaesthesia in achieving optimal brain relaxation in adults undergoing intracranial surgery. Methods: We searched PubMed, Embase, Cochrane, and EBSCO Open Dissertations databases from inception to February 2024. Randomised controlled trials (RCTs) comparing anaesthetic agents in patients over 18 years old undergoing neurosurgical procedures were included. The primary outcome was the proportion of subjects who achieved satisfactory brain relaxation, as indicated by a score of 1 on the 4-point Brain Relaxation Score (BRS). The revised Cochrane risk of bias tool was used to evaluate the quality of included studies. Risk ratios (RR) and 95% confidence interval (CI) were calculated using a random-effects model. The effects on brain relaxation were ranked using the surface under the cumulative ranking (SUCRA). We also evaluated the certainty of evidence using the Confidence in Network Meta-Analysis (CINeMA) online platform. Results: Out of 2,264 articles identified, 11 RCTs involving 1,367 participants were included. The chance of having satisfactory brain relaxation of the following anaesthetics appeared to be lower than propofol: sevoflurane (RR: 0.93; 95% CI: 0.79, 1.09), isoflurane (RR: 0.89; 95% CI: 0.60, 1.34), and desflurane (RR: 0.83; 95% CI: 0.65, 1.07), with moderate certainty of evidence. Propofol had the highest SUCRA ranking (81.4%). Conclusion: Although all anaesthetic agents had similar effects, propofol showed a tendency towards better brain relaxation during neurosurgery. Further robust evidence is required to confirm the potential advantages of propofol.https://journals.lww.com/10.4103/ija.ija_189_25brain relaxationcraniotomyinhalation anaesthesiaintravenous anaesthesianeurosurgerypropofol
spellingShingle Patcharin Intarakhao
Peeraphong Thiarawat
Teerapon Dhippayom
Comparison of propofol and inhalational anaesthetics for brain relaxation in neurosurgery: A systematic review and network meta-analysis
Indian Journal of Anaesthesia
brain relaxation
craniotomy
inhalation anaesthesia
intravenous anaesthesia
neurosurgery
propofol
title Comparison of propofol and inhalational anaesthetics for brain relaxation in neurosurgery: A systematic review and network meta-analysis
title_full Comparison of propofol and inhalational anaesthetics for brain relaxation in neurosurgery: A systematic review and network meta-analysis
title_fullStr Comparison of propofol and inhalational anaesthetics for brain relaxation in neurosurgery: A systematic review and network meta-analysis
title_full_unstemmed Comparison of propofol and inhalational anaesthetics for brain relaxation in neurosurgery: A systematic review and network meta-analysis
title_short Comparison of propofol and inhalational anaesthetics for brain relaxation in neurosurgery: A systematic review and network meta-analysis
title_sort comparison of propofol and inhalational anaesthetics for brain relaxation in neurosurgery a systematic review and network meta analysis
topic brain relaxation
craniotomy
inhalation anaesthesia
intravenous anaesthesia
neurosurgery
propofol
url https://journals.lww.com/10.4103/ija.ija_189_25
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AT peeraphongthiarawat comparisonofpropofolandinhalationalanaestheticsforbrainrelaxationinneurosurgeryasystematicreviewandnetworkmetaanalysis
AT teerapondhippayom comparisonofpropofolandinhalationalanaestheticsforbrainrelaxationinneurosurgeryasystematicreviewandnetworkmetaanalysis