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Effects of sustained Trendelenburg position on the spectral signatures of the EEG: implications for the consistency of the level of anesthesia, an observational study

Crossref DOI link: https://doi.org/10.1007/s10877-025-01403-x

Published Online: 2025-12-22

Update policy: https://doi.org/10.1007/springer_crossmark_policy

Authors

Rubio-Baines, Iñigo

Martinez-Simon, Antonio

Valencia, Miguel

Panadero, Alfredo

Cacho-Asenjo, Elena

Manzanilla, Oscar

Alegre, Manuel

Nuñez-Cordoba, Jorge M.

Honorato-Cia, Cristina
Funding

Funding for this research was provided by:

Universidad de Navarra
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Text and Data Mining valid from 2025-12-22

Version of Record valid from 2025-12-22
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Article History

Received: 31 July 2025

Accepted: 15 December 2025

First Online: 22 December 2025

Declarations

:

: The authors declare no competing interests.

: The authors declare that no funds, grants, or other support were received during the preparation of this manuscript.

: The uniform reduction in EEG activity and changes observed in the Density Spectral Array (DSA) during Trendelenburg position contrast with the stability of BIS Index and SEF95. These results suggest that BIS Index and SEF95 remain consistent. The observed EEG power reduction may be attributed to subcutaneous edema.

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