Abstract
Background/aim: We evaluated anesthesia depth, cerebral oxygenation and postoperative cognitive functions with NIRS and BIS monitoring and Mini-Mental State Examination (MMSE) score. Materials and methods: We studied 60 patients in Al –zahra teaching hospital over 18 years of age, with a preoperative MMSE test score of 23 and above. Hemodynamic parameters, BIS and bilateral NIRS values were recorded. The mean arterial pressure (MAP) value was kept between 55-65 mmHg. MMSE test was repeated 1 hour before and 24 hours postoperatively. Results: The extubation time was shorter. Aldrete recovery score and NIRS values were was higher and blood pressure and heart rate values were lower in the desflurane group. There was a moderate positive correlation between blood pressure values and NIRS in a certain part of the operation in the isoflurane group. In the propofol group, 5 patients had a more than 20% decrease in rSO 2 . In MMSE test score, there was no decrease in both groups in the preoperative and postoperative period. Conclusion: We think that, the isoflurane group be preferred as a priority with less remifentanil expenditure, lower blood pressure values, higher rSO 2 values, no 20% decrease in rSO 2 values, faster extubation, and statistically significant early recovery.Bispectral index, isoflurane, Controlled hypotension, Near-infrared spectroscopy, Postoperative cognitive dysfunction, Propofol, Mini mental scoreion DOI: 10.7176/JHMN/95-04 Publication date: November 30 th 2021
Highlights
Controlled hypotension is frequently preferred in cases of otolaryngology by reducing bleeding, creating a quality surgical field, increasing operation success, and reducing surgical complications [1]
Cerebral hypoxia was monitored using NIRS monitoring in patients who underwent controlled hypotension with total intravenous anesthesia (TIVA) or balanced general anesthesia, and the effect of anesthesia methods on postoperative cognitive function change was investigatedMethods
Blood pressure and heart rate were lower in the isoflurane group, there was no statistically significant difference between the two groups during the operation in the Fromme scale, which we applied to evaluate the anemia of the surgical field, but the values were numerically lower in the isoflurane group
Summary
Controlled hypotension is frequently preferred in cases of otolaryngology by reducing bleeding, creating a quality surgical field, increasing operation success, and reducing surgical complications [1]. In the propofol group; A statistically significant relationship was found between the differences of SAB measurements taken before and after induction and 60 minutes after the operation and the differences between the cerebraloxymeter-left measurement .
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