Comparison of the Effects of Minimal and High-Flow Anaesthesia on Cerebral Perfusion During Septorhinoplasty [Turk J Anaesthesiol Reanim]
Turk J Anaesthesiol Reanim. 2019; 47(1): 12-16 | DOI: 10.5152/TJAR.2018.36786  

Comparison of the Effects of Minimal and High-Flow Anaesthesia on Cerebral Perfusion During Septorhinoplasty

Leyla Kazancıoğlu1, Şule Batçık1, Başar Erdivanlı1, Ahmet Şen1, Engin Dursun2
1Department of Anaesthesiology and Reanimation, Recep Tayyip Erdoğan University School of Medicine, Rize, Turkey
2Department of Otorhinolaryngology, Recep Tayyip Erdoğan University School of Medicine, Rize, Turkey

Objective: The aim of this study was to analyse the effects of minimal-and high-flow anaesthesia on cerebral oxygenation during septorhinoplasty with controlled hypotension using near-infrared spectroscopy.
Methods: Eighty patients scheduled for septorhinoplasty under general anaesthesia with controlled hypotension were randomised into two groups: minimal-flow (MF) or high-flow (HF). Both groups received desflurane anaesthesia to maintain bispectral index values at 40%-50% and 0.25-0.5 µg kg−1 min−1 i.v. remifentanyl infusion to maintain mean arterial blood pressure between 55 and 65 mmHg. The MF group received 5 L min−1 of fresh gas flow for the first 10 mins then the gas flow was reduced 0.4 L min−1. The HF group received 2 L min−1 of fresh gas flow throughout. Haemodynamic parameters and cerebral oxygen saturation were measured.
Results: There were no statistical differences in demographic variables, duration of anaesthesia and surgery, time to extubation and proceeding to an Aldrete score of 9. There were no statistical differences in haemodynamic parameters, end-tidal CO2 and cerebral oxygen saturation. The amount of desflurane used in the MF group was significantly lower than that used in the HF group (30.5±9.8 mL vs. 48.5±12.1 mL; p<0.05).
Conclusion: MF and HF anaesthesia did not lead to any difference in cerebral oxygen saturation in patients undergoing septorhinoplasty with controlled hypotension. MF anaesthesia may thus be used as safely as HF anaesthesia is.

Keywords: Cerebral oxygen saturation, controlled hypotension, minimal-flow anaesthesia, near-infrared spectroscopy, septorhinoplasty


Leyla Kazancıoğlu, Şule Batçık, Başar Erdivanlı, Ahmet Şen, Engin Dursun. Comparison of the Effects of Minimal and High-Flow Anaesthesia on Cerebral Perfusion During Septorhinoplasty. Turk J Anaesthesiol Reanim. 2019; 47(1): 12-16

Corresponding Author: Leyla Kazancıoğlu, Türkiye


TOOLS
Full Text PDF
English Full Text
Print
Download citation
RIS
EndNote
BibTex
Medlars
Procite
Reference Manager
Share with email
Share
Send email to author

Similar articles
PubMed
Google Scholar