Marcus Eng Hock Ong
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View article: Reducing ED Visits: Optimizing an Interdisciplinary Telemedicine Program in Singapore Nursing Homes
Reducing ED Visits: Optimizing an Interdisciplinary Telemedicine Program in Singapore Nursing Homes Open
Emergency department (ED) utilization among nursing home (NH) residents is reportedly high, with one study showing 42.4% of visits leading to hospital admission. This could be particularly pronounced in rapidly aging societies like Singapo…
View article: Telemedicine Bridge Between EDs and NHs: Reducing NH Residents’ Avoidable Emergency Visits
Telemedicine Bridge Between EDs and NHs: Reducing NH Residents’ Avoidable Emergency Visits Open
Nursing Home (NH) residents have high rates of emergency department (ED) visits, with nearly half potentially avoidable. We evaluated the impact of the EAGLEcareACT (Enhancing Advance Care Planning, Geriatrics, and End-of-Life Care Acute C…
View article: Association between weather, air quality and asthma-related emergency department visits: a retrospective time-series study in Singapore
Association between weather, air quality and asthma-related emergency department visits: a retrospective time-series study in Singapore Open
Objectives To evaluate the association between asthma-related emergency department (ED) visits and weather, air quality, monsoons, haze and cultural festivals in Singapore. Design Retrospective cohort study. Setting A public healthcare clu…
View article: Leveraging AI and transfer learning to enhance out-of-hospital cardiac arrest outcome prediction in diverse setting
Leveraging AI and transfer learning to enhance out-of-hospital cardiac arrest outcome prediction in diverse setting Open
Access to trustworthy artificial intelligence (AI) for clinical applications is uneven, especially in low-resource settings with limited and inconsistent data. Models from high-resource settings often fail to generalize. Transfer learning …
View article: Immune-related adverse events are a potent predictor of post-transplant rejection in HCC: a multicentre retrospective cohort study
Immune-related adverse events are a potent predictor of post-transplant rejection in HCC: a multicentre retrospective cohort study Open
Background Immune checkpoint inhibitors (ICIs) enable successful hepatocellular carcinoma (HCC) downstaging or bridging for liver transplantation (LT) but increase allograft rejection risk. Although immune-related adverse events (irAEs) re…
View article: Why do patients seek emergency care for problems that could be managed in primary care? A scoping review
Why do patients seek emergency care for problems that could be managed in primary care? A scoping review Open
Background Emergency care systems worldwide are increasingly facing capacity challenges. A significant number of people are using emergency care, including the use of emergency departments and ambulance services, for conditions that could …
View article: Machine learning for sudden cardiac death prediction among older adults using community-based electronic health records
Machine learning for sudden cardiac death prediction among older adults using community-based electronic health records Open
ML models can significantly enhance the prediction of SCD risk using community-based EHRs. Our proposed risk model may enable the identification of high-risk individuals among older adults, facilitating targeted interventions and personali…
View article: Gender Bias in Large Language Models for Healthcare: Assignment Consistency and Clinical Implications
Gender Bias in Large Language Models for Healthcare: Assignment Consistency and Clinical Implications Open
The integration of large language models (LLMs) into healthcare holds promise to enhance clinical decision-making, yet their susceptibility to biases remains a critical concern. Gender has long influenced physician behaviors and patient ou…
View article: Prehabilitation of frail elderly PAtients undergoing majoR surgEry at HOME (PREPARE-HOME): a superiority parallel-group randomised controlled trial protocol evaluating smart wearable enhanced prehabilitation versus usual care
Prehabilitation of frail elderly PAtients undergoing majoR surgEry at HOME (PREPARE-HOME): a superiority parallel-group randomised controlled trial protocol evaluating smart wearable enhanced prehabilitation versus usual care Open
Introduction Frailty is a key predictor of adverse surgical outcomes in older adults, contributing to increased postoperative complications, prolonged hospitalisation and delayed recovery. Prehabilitation—targeting improvements in physical…
View article: Developing federated time-to-event scores using heterogeneous real-world survival data
Developing federated time-to-event scores using heterogeneous real-world survival data Open
This study demonstrates the effectiveness of our privacy-preserving federated survival score generation framework and its applicability to real-world heterogeneous survival data.
View article: Association of Scene Time Interval and Field Arrival to Epinephrine Administration Time with Outcomes in Cardiac Arrest
Association of Scene Time Interval and Field Arrival to Epinephrine Administration Time with Outcomes in Cardiac Arrest Open
Background/Objectives: The association of scene time interval (STI) and field arrival to epinephrine administration time (FET) with outcomes in out-of-hospital cardiac arrest (OHCA) is unknown. The goal of this investigation is to assess t…
View article: Evaluation of cardiopulmonary resuscitation and automated external defibrillator skill retention with simplified community-based training
Evaluation of cardiopulmonary resuscitation and automated external defibrillator skill retention with simplified community-based training Open
Introduction: This study aimed to assess the retention of dispatcher-assisted cardiopulmonary resuscitation (CPR) skills and knowledge among newly trained laypersons in Singapore who were trained using the Dispatcher-Assisted first REspond…
View article: Missing Data in OHCA Registries: How Imputation Methods Affect Research Conclusions—Paper I
Missing Data in OHCA Registries: How Imputation Methods Affect Research Conclusions—Paper I Open
Background/Objectives: Clinical observational studies often encounter missing data, which complicates association evaluation with reduced bias while accounting for confounders. This is particularly challenging in multi-national registries …
View article: Positivity rates and subsequent patient dispositions after utilisation of cervical spine imaging referral guidelines in Singapore
Positivity rates and subsequent patient dispositions after utilisation of cervical spine imaging referral guidelines in Singapore Open
Objectives This study seeks to evaluate the imaging characteristics and patient outcomes from the imaging recommendations of the ACR Appropriateness Criteria (AC), the ESR iGuide, and RCR iRefer. Materials and methods This retrospective st…
View article: Transfer Learning Enhances Neurological Outcome Prediction for Out-of-Hospital Cardiac Arrest: Validation Across Diverse Geographic Contexts
Transfer Learning Enhances Neurological Outcome Prediction for Out-of-Hospital Cardiac Arrest: Validation Across Diverse Geographic Contexts Open
Developing accurate risk stratification models for out-of-hospital cardiac arrest (OHCA) in low-resource settings is challenging due to small sample sizes and poor data quality. The Pan-Asian Resuscitation Outcomes Study (PAROS) network pr…
View article: Clinical and economic impact of a large language model in perioperative medicine: a randomized crossover trial
Clinical and economic impact of a large language model in perioperative medicine: a randomized crossover trial Open
Preoperative assessment is a critical but time-consuming component of perioperative care, often hindered by poor guideline adherence and high documentation burdens. This study evaluates the impact of PEACH (PErioperative AI CHatbot), an LL…
View article: Development and validation of a novel prognostic model to predict 1-year post-transplant mortality for acute-on-chronic hepatitis B liver failure: a nationwide, multicentre, cohort study
Development and validation of a novel prognostic model to predict 1-year post-transplant mortality for acute-on-chronic hepatitis B liver failure: a nationwide, multicentre, cohort study Open
This work was supported by grants from the National Natural Science Foundation of China, Natural Science Foundation of Zhejiang Province, and the Research Project of Jinan Microecological Biomedicine Shandong Laboratory.
View article: Public health insights of patients with asthma receiving primary, specialist or mixed care in Singapore using data from the SDG-CARE Asthma Registry
Public health insights of patients with asthma receiving primary, specialist or mixed care in Singapore using data from the SDG-CARE Asthma Registry Open
Findings of this study provide greater understanding of the asthma public healthcare landscape in Singapore, allowing for the identification of current gaps in care, particularly for high-risk groups that may benefit from optimised treatme…
View article: Ambulance diversion and its use as an ED overcrowding mitigation strategy: Does it work? A scoping review.
Ambulance diversion and its use as an ED overcrowding mitigation strategy: Does it work? A scoping review. Open
There is no conclusive evidence on the effects of AD on EMS and patient outcomes. 31 articles reported negative EMS or patient outcomes with 11 articles reporting neutral or positive outcomes. Measures to reduce or avoid diversion, however…
View article: Utilising artificial intelligence in prehospital emergency care systems in low- and middle-income countries: a scoping review
Utilising artificial intelligence in prehospital emergency care systems in low- and middle-income countries: a scoping review Open
Introduction Improvements in prehospital emergency care have the potential to transform patient outcomes globally, but particularly within low-and middle-income countries. Whilst artificial intelligence is being implemented in many healthc…
View article: Long-Range Forecasting for Emergency Care Systems in a Highly Dynamic Setting: A Singapore Case Study
Long-Range Forecasting for Emergency Care Systems in a Highly Dynamic Setting: A Singapore Case Study Open
In the long term, an overall increase in ECS demand is driven by an increase in high-acuity use; population health interventions can further exacerbate the high-acuity burden. Our work casts light on the relatively less-studied dynamics of…
View article: Pragmatic Risk Stratification Method to Identify Emergency Department Presentations for Alternative Care Service Pathways: Registry-Based Retrospective Study Over 5 Years
Pragmatic Risk Stratification Method to Identify Emergency Department Presentations for Alternative Care Service Pathways: Registry-Based Retrospective Study Over 5 Years Open
Background Redirecting avoidable presentations to alternative care service pathways (ACSPs) may lead to better resource allocation for prehospital emergency care. Stratifying emergency department (ED) presentations by admission risk using …
View article: Optimising design of clinical decision support systems and implementation strategies to improve radiological imaging appropriateness – A qualitative study in the emergency department
Optimising design of clinical decision support systems and implementation strategies to improve radiological imaging appropriateness – A qualitative study in the emergency department Open
Participants expressed their expectations regarding the design and features of CDSS as end users. Many strategies to optimise the implementation of CDSS in the ED for appropriate imaging exist and can encourage acceptance by ED physicians.
View article: Characteristics of pediatric patients with heat-related illness transferred to emergency departments: a descriptive analysis from Japan
Characteristics of pediatric patients with heat-related illness transferred to emergency departments: a descriptive analysis from Japan Open
Objective: Children are particularly vulnerable to heat-related illnesses due to their unique physiological and behavioral characteristics. Understanding the epidemiology and clinical features of heat-related illnesses in children is cruci…