Tendency and quantification of related factors of regional cerebral oxygenation during laparoscopic surgery in gynecology

Abstract

Abstract: Objective To identify the time course of regional cerebral oxygen saturation (rScO₂) during laparoscopic surgery with trendelenburg position in gynecology and to quantify the effect of related factors. Methods Data from patients scheduled for elective gynecological laparoscopic surgery were collected and analyzed from June 2017 to Aug 2018 in Peking Union Medical College Hospital. Spline and mixed-effects models were used to investigate the changing trend and affecting factors of rScO₂. Results Forty-eight ASA Ⅰ~Ⅱ patients were included. rScO₂ presented a U-shaped trend over time with the spline model (P＜0.01 for the non-linear association). Episodes of cerebral deoxygenation were observed in 3 patients during the declining period of rScO₂. Mean blood pressure, systolic blood pressure and end-tidal CO₂ (ETCO₂) were positively associated with rScO₂ (P＜0.05). Peak airway pressure (PAP) and body mass index (BMI) were negatively associated with rScO₂ (P＜0.05). Compared with other factors, the effects of BMI and ETCO₂ on rScO₂ were increased significantly over time(P＜0.05). Conclusions During the gynecological laparoscopic surgery with trendelenburg position, rScO₂ changes significantly over time. BMI and ETCO₂ exhibite greater effects on rScO₂, and the effects increase significantly over time.

Key words: regional cerebral oxygen saturation, laparoscopic surgery, trendelenburg position, anesthetic management

CLC Number:

R614

WANG Wei-jia, ZHANG Ning-chen, ZHANG Yue-lun, GONG Ya-hong. Tendency and quantification of related factors of regional cerebral oxygenation during laparoscopic surgery in gynecology[J]. Basic & Clinical Medicine, 2021, 41(7): 1039-1042.

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