• Motoi Kumagai, Shohei Ogawa, Aya Doe, and Kenji Suzuki.
• Department of Anaesthesiology, School of Medicine, Iwate Medical University, Morioka, Japan.
• Int J Med Robot. 2015 Sep 1; 11 (3): 302-307.

BackgroundThe effects of total intravenous anaesthesia (TIVA) on cerebral oxygenation in patients undergoing robot-assisted laparoscopic radical prostatectomy (RALP) have not been investigated. We examined the changes in jugular venous oxygen saturation (SjvO2 ) and regional cerebral tissue oxygen saturation (rSO2 ) during RALP under TIVA. Whether rSO2 could reflect SjvO2 was also examined.MethodsForty patients (ASA 1-2) undergoing RALP were enrolled. Measurements were obtained at eight time points during the operation.ResultsSjvO2 did not decrease at any measurement point, whereas rSO2 fell significantly 120 min after pneumoperitoneum in a steep Trendelenburg position (p <0.01). There was a weak correlation between SjvO2 and rSO2 (Pearson correlation coefficient =0.34; p <0.01). Bland-Altman analysis showed a wide interval for the limit of agreement (47%) between the two measurements.ConclusionsThese findings suggested that TIVA could be safely used for RALP. It was also demonstrated that rSO2 did not accurately reflect SjvO2 during RALP. Copyright © 2014 John Wiley & Sons, Ltd.Copyright © 2014 John Wiley & Sons, Ltd.

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