Delirium Bibliography

Reference Information

Title

Machine learning with clinical and intraoperative biosignal data for predicting postoperative delirium after cardiac surgery

Authors

Han, C. Kim, H. I. Soh, S. Choi, J. W. Song, J. W. Yoon, D.

Year

2024

Journal

iScience

Abstract

Early identification of patients at high risk of delirium is crucial for its prevention. Our study aimed to develop machine learning models to predict delirium after cardiac surgery using intraoperative biosignals and clinical data. We introduced a novel approach to extract relevant features from continuously measured intraoperative biosignals. These features reflect the patient’s overall or baseline status, the extent of unfavorable conditions encountered intraoperatively, and beat-to-beat variability within the data. We developed a soft voting ensemble machine learning model using retrospective data from 1,912 patients. The model was then prospectively validated with data from 202 additional patients, achieving a high performance with an area under the receiver operating characteristic curve of 0.887 and an accuracy of 0.881. According to the SHapley Additive exPlanation method, several intraoperative biosignal features had high feature importance, suggesting that intraoperative patient management plays a crucial role in preventing delirium after cardiac surgery.

PMID

PMID: 38799563

PMCID: PMC11126810

Keywords

Bioinformatics
Machine learning

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