Cardiothoracic & vascular anesthesia
High frequency variability index in predicting postoperative pain in video/robotic-assisted thoracoscopic surgery under combined general anesthesia and peripheral nerve block: an observational study
Authors' conclusion
The present study demonstrated that it is difficult to predict the degree of postoperative pain in patients undergoing VATS/RATS under general anesthesia combined with peripheral nerve block, by using HFVI/ANI obtained at multiple time points during general anesthesia.
Study context
- Population
- Patients undergoing VATS/RATS under GA combined with peripheral nerve block48 analysed
- Outcome
- Association of intraoperative HFVI/ANI with maximum postoperative pain at rest and postoperative morphine consumption
Main finding
As reported in the abstract
Postoperative pain (NRS) vs HFVI/ANI just before extubation
- No significant association between high frequency variability index (HFVI)/analgesia nociception index (ANI) just before extubation and postoperative Numerical Rating Scale (NRS) score
- ROC analysis: moderate (NRS > 3) or severe (NRS > 7) postoperative pain could not be predicted by HFVI/ANI just before extubation
Observational data: associations, not effects.
Further findings
Postoperative morphine consumption
- No associations with HFVI/ANI at any time point
Original publication
High frequency variability index in predicting postoperative pain in video/robotic-assisted thoracoscopic surgery under combined general anesthesia and peripheral nerve block: an observational study. J Clin Monit Comput. Published 20 August 2024. doi:10.
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