Publications by authors named "Oyeon Kwon"

Background: The quick sequential organ failure assessment (qSOFA) score is suggested to use for screening patients with a high risk of clinical deterioration in the general wards, which could simply be regarded as a general early warning score. However, comparison of unselected admissions to highlight the benefits of introducing qSOFA in hospitals already using Modified Early Warning Score (MEWS) remains unclear. We sought to compare qSOFA with MEWS for predicting clinical deterioration in general ward patients regardless of suspected infection.

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Article Synopsis
  • An AI model (AI-ECG-AF) was developed to identify patients likely to have paroxysmal atrial fibrillation (PAF) by analyzing ECG data, specifically focusing on those with ischemic strokes that are not due to heart problems (noncardioembolic).
  • The study compared PAF risk across different noncardioembolic ischemic stroke subgroups, such as cryptogenic, large artery atherosclerosis (LAA), and small artery occlusion (SAO), against a control group from a university hospital.
  • Results showed that noncardioembolic ischemic stroke patients had a higher PAF risk than the control group, with the cryptogenic subgroup exhibiting the highest risk, followed by
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Background: The recently developed deep learning (DL)-based early warning score (DEWS) has shown potential in predicting deteriorating patients. We aimed to validate DEWS in multiple centres and compare the prediction, alarming and timeliness performance with the modified early warning score (MEWS) to identify patients at risk for in-hospital cardiac arrest (IHCA).

Method/research Design: This retrospective cohort study included adult patients admitted to the general wards of five hospitals during a 12-month period.

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Background: Early detection and prompt intervention for clinically deteriorating events are needed to improve clinical outcomes. There have been several attempts at this, including the introduction of rapid response teams (RRTs) with early warning scores. We developed a deep-learning-based pediatric early warning system (pDEWS) and validated its performance.

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Objectives: A deep learning-based early warning system is proposed to predict sepsis prior to its onset.

Design: A novel algorithm was devised to detect sepsis 6 hours prior to its onset based on electronic medical records.

Setting: Retrospective cohorts from three separate hospitals are used in this study.

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Objectives: As the performance of a conventional track and trigger system in a rapid response system has been unsatisfactory, we developed and implemented an artificial intelligence for predicting in-hospital cardiac arrest, denoted the deep learning-based early warning system. The purpose of this study was to compare the performance of an artificial intelligence-based early warning system with that of conventional methods in a real hospital situation.

Design: Retrospective cohort study.

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Background: In emergency medical services (EMSs), accurately predicting the severity of a patient's medical condition is important for the early identification of those who are vulnerable and at high-risk. In this study, we developed and validated an artificial intelligence (AI) algorithm based on deep learning to predict the need for critical care during EMS.

Methods: We conducted a retrospective observation cohort study.

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For a brain-computer interface (BCI) system, a calibration procedure is required for each individual user before he/she can use the BCI. This procedure requires approximately 20-30 min to collect enough data to build a reliable decoder. It is, therefore, an interesting topic to build a calibration-free, or subject-independent, BCI.

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Background: Electroencephalography (EEG)-based brain-computer interface (BCI) systems are mainly divided into three major paradigms: motor imagery (MI), event-related potential (ERP), and steady-state visually evoked potential (SSVEP). Here, we present a BCI dataset that includes the three major BCI paradigms with a large number of subjects over multiple sessions. In addition, information about the psychological and physiological conditions of BCI users was obtained using a questionnaire, and task-unrelated parameters such as resting state, artifacts, and electromyography of both arms were also recorded.

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