NEUROSCIENCES AND NEUROANAESTHESIA Surveyon the adequacyof depth of anaesthesia with bispectral index and isolated forearm technique in elective Caesarean section under general anaesthesia with sevoflurane

Editor’s key points † Bispectral index (BIS) monitoring is commonly used to monitor depth of anaesthesia. † The authors studied parturients in whom standard techniques were used for general anaesthesia for Caesarean section. † The isolated forearm test was used to study the ability of the BIS to detect consciousness. † BIS values below 60 were commonly associated with IFT responses, particularly before delivery. Background. Awareness during general anaesthesia for Caesarean section (C/S), although uncommon, remains a concern for anaesthesiologists. We examined the relationship between the bispectral index (BIS) and responses to the isolated forearm technique (IFT) to evaluate the adequacy of general anaesthesia in C/S and determine a suitable cut-off point for BIS values based on IFT results.