Key result
Bispectral index shows poor accuracy for detecting intra-operative wakefulness vs the isolated forearm technique.
Why the study?
Does the bispectral index accurately detect intra-operative wakefulness compared to the isolated forearm technique in women undergoing major gynaecological surgery?
Observational (n=34)
Does the bispectral index accurately detect intra-operative wakefulness compared to the isolated forearm technique in women undergoing major gynaecological surgery?
Titrating isoflurane to a bispectral index of 55-60 is unreliable for detecting intra-operative wakefulness and may lead to an unacceptable number of conscious patients during surgery.
Authors
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BIS may miss wakefulness events; leaves open the comparative accuracy of IFT versus BIS in prospective studies.
I.F. Russell (2013) conducted an observational in major gynaecological surgery (n=34). Bispectral index vs. Isolated forearm technique was evaluated on Detection of intra-operative wakefulness (appropriate hand movements to commands). The bispectral index demonstrated poor accuracy for detecting intra-operative wakefulness compared to the isolated forearm technique, with a sensitivity of 53%, specificity of 69%, and positive predictive value of 3%.
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