Influence of the anaesthetic depth on the inhibition of the oculocardiac reflex during sevoflurane anaesthesia for paediatric strabismus surgery

British Journal of Anaesthesia
C Yi, D Jee

Abstract

It remains controversial whether the anaesthetic depth as assessed by bispectral index (BIS) influences the oculocardiac reflex (OCR) during strabismus surgery. We investigated whether BIS-guided sevoflurane titration may help to optimize the anaesthetic depth for inhibition of the OCR during paediatric strabismus surgery. Eighty-four patients (aged 2-12 yr) undergoing strabismus surgery were randomly allocated to one of the three groups (n=28 for each) according to target BIS value of 40, 50, and 60. The end-tidal sevoflurane concentration with 50% N2O/O2 was adjusted towards target BIS. The incidence of OCR and the lowest heart rate (HR) were recorded in relation to the end-tidal sevoflurane concentration. The incidence of OCR was higher in Group BIS-60 (71.4%) than in Groups BIS-40 (10.7%) (P<0.001) or BIS-50 (32.1%) (P=0.003), with no difference between Group BIS-40 and Group BIS-50. The lowest HR [beats min(-1), mean (sd)] during traction on the extraocular muscle was lower in Group BIS-60 [112.3 (sd 17.8)] compared with Group BIS-40 [129.3 (11.2)] (P<0.001), with no difference between BIS-40 and BIS-50 [121.4 (16.3)], and between BIS-50 and BIS-60. The end-tidal sevoflurane concentration was different between the three gr...Continue Reading

References

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Citations

Apr 16, 2010·Canadian Journal of Anaesthesia = Journal Canadien D'anesthésie·Amy Rodgers, Robin G Cox
Aug 8, 2015·Journal of Anesthesia·Duk-Kyung KimJi Won Choi
Mar 26, 2009·Acta Anaesthesiologica Scandinavica·R Garg
Oct 28, 2016·Journal of Clinical Monitoring and Computing·Tugba KaramanSemih Arici
May 25, 2016·Case Reports in Neurological Medicine·Ha Son NguyenPeter Pahapill
Oct 2, 2013·Surgical Neurology International·Farhad EtezadiKazem Abbassioun
Nov 16, 2013·Surgical Neurology International·Abbas AmirjamshidiSeyed Babak Ghasemi
Jun 9, 2016·Journal of Neurosurgical Anesthesiology·Cyrill MeuwlyBernhard Schaller
Aug 18, 2017·Anesthesiology·Marie-Claire Nghe, Anne Godier
Aug 18, 2017·Anesthesiology·Jacques H Scharoun
Oct 4, 2018·European Journal of Ophthalmology·Jean-Baptiste DucloyerPierre Lebranchu
Nov 2, 2016·The Cochrane Database of Systematic Reviews·Anthony G MessinaNathan Leon Pace
Mar 7, 2020·Indian Journal of Anaesthesia·Aditi JainVikas Saini
Mar 16, 2019·BMC Anesthesiology·Robert W ArnoldLeif Lunoe
Mar 16, 2021·Clinical Ophthalmology·Robert W ArnoldBrion Beerle
Jul 2, 2021·Clinical Ophthalmology·Robert W Arnold
Dec 17, 2009·Current Opinion in Anaesthesiology

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