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.
Yoshida K; Hakozaki T; Hasegawa T; Yakushiji T; Fukuhara Y; Obara S; Inoue S · 2025 · Journal of clinical monitoring and computing
WASTE classifies this as Negative / Null Result Report · AI classification, approximate
The study found no significant effect — useful as a negative control or null benchmark for your own design.
Abstract (excerpt)
The aim of the present study was to investigate the utility of the intraoperative high frequency variability index (HFVI) / Analgesia Nociception Index (ANI) for predicting postoperative pain in patients undergoing open liver or pancreatic…
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Metadata source: Europe PMC · DOI 10.1007/s10877-025-01332-9