The perfusion index as a method of assessing epidural anaesthesia efficacy in healthy dogs
Harumichi Itoh
Profil Orcid, Hajime Inoue
Profil Orcid, Takuya Itamoto
Profil Orcid, , , , Munekazu Nakaichi
Profil Orcid, Toshie Iseri
Profil Orcid oraz Kazuhito Itamoto
Profil Orcid 
Data publikacji: 23 wrz 2024
Zakres stron: 469 - 473
Otrzymano: 21 mar 2024
Przyjęty: 03 wrz 2024
DOI: https://doi.org/10.2478/jvetres-2024-0048
Słowa kluczowe
© 2024 Harumichi Itoh et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Introduction
Perfusion index (PI) is used as assessment of epidural anaesthesia efficacy in human medicine, but its usefulness in dogs is unknown. The aim of this study was to evaluate the usefulness of PI in determining epidural anaesthesia effectiveness.
Material and Methods
This is prospective cross-over experimental study. Five healthy adult beagle dogs were anaesthetised and an epidural catheter was inserted in the lumbosacral area and adjusted so that the end of the catheter was placed at the fourth lumbar vertebra. Single-port catheters were used in the control group and multiple-port catheters were used in the treatment group. A PI probe was placed on a hind leg, and the catheter placement was confirmed
Results
The PIs of the hind limbs were not significantly different over time, nor were they between the control and lidocaine-injected groups at any point in time.
Conclusion
The PI is not useful in determining the efficacy of epidural anaesthesia in dogs under general anaesthesia. In the future, finding a reliable method to evaluate the success of regional anaesthesia, even in patients under general anaesthesia, will be necessary.