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Assessment of intraoperative high frequency variability index as a predictor of postoperative pain after open liver or pancreatic surgery under combined general and epidural anesthesia: a prospective observational study

Crossref DOI link: https://doi.org/10.1007/s10877-025-01332-9

Published Online: 2025-07-24

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

Authors

Yoshida, Keisuke

Hakozaki, Takahiro

Hasegawa, Takayuki

Yakushiji, Tatsumi

Fukuhara, Yukihiro

Obara, Shinju

Inoue, Satoki
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Text and Data Mining valid from 2025-07-24

Version of Record valid from 2025-07-24
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Article History

Received: 16 May 2025

Accepted: 15 July 2025

First Online: 24 July 2025

Declarations

:

: The authors declare no competing interests.

: This study was approved by the Research Ethics Committee of Fukushima Medical University (Approval Number: 2022–033, Fukushima, Japan).

: Written informed consent was waived by the Research Ethics Committee of Fukushima Medical University on the condition that participants were informed through an opt-out notice on the website of the university’s affiliated hospital, and those who declined participation were excluded from the study.

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