Assessing different brain oxygenation components in elderly patients under propofol or sevoflurane anesthesia: A
Ji Young Min1, Joong Baek Kim1, Joon Pyo Jeon1
1Department of Anesthesiology and Pain Medicine, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 1021 Tongil-ro, Eunpyeong-gu, Seoul 03312, Republic of Korea.
Journal of Clinical Anesthesia
|June 13, 2024
Summary
Cerebral oximetry using Δo2Hbi and ΔHHbi effectively monitors elderly patients during anesthesia. This study found no significant differences between propofol and sevoflurane, highlighting its value for brain status assessment.
Area of Science:
- Anesthesiology
- Neuroscience
- Geriatrics
Background:
- Elderly patients experience physiological changes impacting cerebral function during anesthesia.
- Effective cerebral monitoring tools are crucial for this demographic.
- Cerebral oximetry offers a non-invasive method for assessing brain oxygenation.
Purpose of the Study:
- To investigate cerebral monitoring using Δo2Hbi, ΔHHbi, and ΔcHbi in elderly patients.
- To compare the efficacy of propofol- versus sevoflurane-based anesthesia on these cerebral parameters.
- To determine the clinical utility of these measures in elderly surgical patients.
Main Methods:
- Prospective, randomized, double-blind, single-center study.
- 100 elderly patients (70-80 years, ASA I-II) undergoing urologic surgery.
- Comparison of propofol-based versus sevoflurane anesthesia with cerebral oximetry measurements at set intervals.
Main Results:
- Both propofol and sevoflurane anesthesia showed significant decreases in Δo2Hbi over 30 minutes in elderly patients.
- No significant differences in Δo2Hbi changes were observed between the propofol and sevoflurane groups.
- ΔHHbi showed initial decreases but no significant group differences, suggesting limited utility for distinguishing anesthetic effects.
Conclusions:
- Δo2Hbi and ΔHHbi are valuable for monitoring brain status changes in elderly patients under anesthesia.
- Cerebral oximetry provides insights into cerebral hemodynamics during anesthetic management in older adults.
- These parameters aid in discerning baseline brain status alterations during surgical procedures.
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