Open Access

Predicting Loss of Consciousness Events Using Natural Language Processing and Deep Learning on Emergency Department Text Records

Volume 1, Issue 4

  • Author(s)Joao dos Santos, S. Miguel Francisco, N. Teresa Nascimento
  • AffiliationUniversity of Agostinho Neto, Angola
  • Page No.15-26
  • Volume, Issue & YearVolume 1, Issue 4, Dec 2024
  • Published On2024/12/30
  • JournalInternational Journal of Advanced Multidisciplinary Application (IJAMA)
  • ISSN No.3048-9350

Abstract

The growing use of electronic medical records (EMRs) offers a promising opportunity to improve trauma care through data-driven insights. However, extracting useful and actionable information from unstructured clinical text remains a significant challenge. This study addresses this issue by applying natural language processing (NLP) techniques to extract injury-related variables and classify trauma patients based on the presence of loss of consciousness (LOC). A dataset of 23,308 trauma patient EMRs, comprising both
pre-diagnosis and post-diagnosis free-text notes, was analyzed using a bilingual (English and Korean) pretrained RoBERTa model. The patients were grouped into four categories based on LOC and head trauma. To mitigate class imbalance in LOC labeling, deep learning models were trained with weighted loss functions, achieving an area under the curve (AUC) of 0.91. Local Interpretable Model-agnostic Explanations (LIME) analysis further highlighted the model's ability to identify key terms associated with head injuries and
consciousness. The results suggest that NLP can accurately identify LOC in trauma patients EMRs, with the weighted loss functions effectively addressing class imbalances. These findings pave the way for developing AI tools that can enhance trauma care and clinical decision-making

Keywords: natural language processing, text mining, deep learning, emergency departments, clinical decision support

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