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World Journal of Urology

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Open Access 01-12-2024 | Prostatectomy | Original Article

Role of oxygen reserve index monitoring in patients undergoing robot-assisted radical prostatectomy: a retrospective study

Authors: Jung-Hee Ryu, Young-Tae Jeon, Kyu Man Sim, Soowon Lee, Ah-Young Oh, Chang-Hoon Koo

Published in: World Journal of Urology | Issue 1/2024

Abstract

Purpose

Robot-assisted radical prostatectomy (RARP) is a common surgical procedure for the treatment of prostate cancer. Although beneficial, it can lead to intraoperative hypoxia due to high-pressure pneumoperitoneum and Trendelenburg position. This study explored the use of oxygen reserve index (ORi) to monitor and predict hypoxia during RARP.

Methods

A retrospective analysis was conducted on 329 patients who underwent RARP at the Seoul National University Bundang Hospital between July 2021 and March 2023. Various pre- and intraoperative variables were collected, including ORi values. The relationship between ORi values and hypoxia occurrence was assessed using receiver operating characteristic curves and logistic regression analysis.

Results

Intraoperative hypoxia occurred in 18.8% of the patients. The receiver operating characteristic curve showed a satisfactory area under the curve of 0.762, with the ideal ORi cut-off value for predicting hypoxia set at 0.16. Sensitivity and specificity were 64.5% and 75.7%, respectively. An ORi value of < 0.16 and a higher body mass index were identified as independent risk factors of hypoxia during RARP.

Conclusions

ORi monitoring provides a non-invasive approach to predict intraoperative hypoxia during RARP, enabling early management. Additionally, the significant relationship between a higher body mass index and hypoxia underscores the importance of individualized patient assessment.

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Title: Role of oxygen reserve index monitoring in patients undergoing robot-assisted radical prostatectomy: a retrospective study
Authors: Jung-Hee Ryu
Young-Tae Jeon
Kyu Man Sim
Soowon Lee
Ah-Young Oh
Chang-Hoon Koo
Publication date: 01-12-2024
Publisher: Springer Berlin Heidelberg
Keywords: Prostatectomy
Prostatectomy
Published in: World Journal of Urology / Issue 1/2024
Print ISSN: 0724-4983
Electronic ISSN: 1433-8726
DOI: https://doi.org/10.1007/s00345-024-04938-x

At a glance: The STEP trials

Springer Medicine

Role of oxygen reserve index monitoring in patients undergoing robot-assisted radical prostatectomy: a retrospective study

Abstract

Purpose

Methods

Results

Conclusions

At a glance: The STEP trials

Springer Medicine

Abstract

Purpose

Methods

Results

Conclusions

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