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• W4210458679 abstract "Changes in a patient's condition over time are a backbone of clinical decision making. However, most currently used methods for identification of patients in intensive care units (ICUs) at high risk for death do not make effective use of the temporal dimension of available data. We therefore conducted a study to determine whether longitudinal data analysis using recurrent neural networks (RNN) with attention mechanism can identify novel temporal data patterns predictive of adverse outcomes. We analyzed data on patients admitted to the Medical Intensive Care Unit (MICU) of Asan Medical Center between 2010 and 2017. Static (demographics, diagnoses, procedures, medications) and longitudinal (vitals, laboratory tests, Glasgow Coma Scale) variables were included in the analysis. We used an RNN model with long short-term memory (RNN-LSTM) with attention mechanism to identify and test novel data patterns predictive of ICU death. We also compared accuracy of prediction of ICU mortality between a logistic regression and RNN-LSTM models with and without attention. Among 4896 patients admitted to the MICU, 548 (11.19%) died. RNN-LSTM model with attention identified several high-risk longitudinal variable patterns that were predictive of ICU mortality in a confirmatory analysis, including sustained low blood oxygen content (OR 2.33; 95% CI 1.16 to 4.70) and high frequency of serum sodium measurements (OR 1.27; 95% CI 1.04 to 1.56). RNN-LSTM models with and without attention achieved numerically, but not statistically significantly higher c-statistics for prediction of ICU mortality compared to logistic regression. RNN-LSTM model with attention identified novel temporal data patterns predictive of ICU mortality. These predictors were both statistically significant and clinically plausible, likely representing progressive respiratory failure (sustained low oxygen saturation) and close monitoring of a clinically deteriorating patient (frequent sodium measurements)." @default.
• W4210458679 created "2022-02-08" @default.
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• W4210458679 date "2022-01-01" @default.
• W4210458679 modified "2023-10-18" @default.
• W4210458679 title "Using deep learning with attention mechanism for identification of novel temporal data patterns for prediction of ICU mortality" @default.
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• W4210458679 doi "https://doi.org/10.1016/j.imu.2022.100875" @default.
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