# A Transformer-based Deep Learning Algorithm to Auto-record Undocumented Clinical One-Lung Ventilation Events

## TL;DR

This paper introduces a Transformer-based deep learning model that accurately predicts undocumented one-lung ventilation start and end times from intraoperative data, improving data completeness and clinical decision-making.

## Contribution

The study presents a novel Transformer and CNN hybrid model for predicting missing clinical event timings from intraoperative data, enhancing data accuracy in lung surgery.

## Key findings

- Model outperforms baseline methods significantly.
- Achieves satisfactory accuracy for clinical application.
- Demonstrates effectiveness on multi-hospital datasets.

## Abstract

As a team studying the predictors of complications after lung surgery, we have encountered high missingness of data on one-lung ventilation (OLV) start and end times due to high clinical workload and cognitive overload during surgery. Such missing data limit the precision and clinical applicability of our findings. We hypothesized that available intraoperative mechanical ventilation and physiological time-series data combined with other clinical events could be used to accurately predict missing start and end times of OLV. Such a predictive model can recover existing miss-documented records and relieves the documentation burden by deploying it in clinical settings. To this end, we develop a deep learning model to predict the occurrence and timing of OLV based on routinely collected intraoperative data. Our approach combines the variables' spatial and frequency domain features, using Transformer encoders to model the temporal evolution and convolutional neural network to abstract frequency-of-interest from wavelet spectrum images. The performance of the proposed method is evaluated on a benchmark dataset curated from Massachusetts General Hospital (MGH) and Brigham and Women's Hospital (BWH). Experiments show our approach outperforms baseline methods significantly and produces a satisfactory accuracy for clinical use.