Xiayan Shen
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View article: Relationship Between Activity Tracker Metrics and the Physical Activity Index and Their Association With Cardiometabolic Phenotypes, Subclinical Atherosclerosis, and Cardiac Remodeling: Cross-Sectional Study
Relationship Between Activity Tracker Metrics and the Physical Activity Index and Their Association With Cardiometabolic Phenotypes, Subclinical Atherosclerosis, and Cardiac Remodeling: Cross-Sectional Study Open
Background Consumer wearable technology quantifies physical activity; however, the association between these metrics and cardiometabolic health requires further elucidation. Objective This study identified latent factors derived from Fitbi…
View article: Relationship Between Activity Tracker Metrics and the Physical Activity Index and Their Association With Cardiometabolic Phenotypes, Subclinical Atherosclerosis, and Cardiac Remodeling: Cross-Sectional Study (Preprint)
Relationship Between Activity Tracker Metrics and the Physical Activity Index and Their Association With Cardiometabolic Phenotypes, Subclinical Atherosclerosis, and Cardiac Remodeling: Cross-Sectional Study (Preprint) Open
BACKGROUND Consumer wearable technology quantifies physical activity; however, the association between these metrics and cardiometabolic health requires further elucidation. OBJECTIVE This study identified latent factors derived from Fi…
View article: Machine Learning-Based Research on the Adaptability of Adolescents to Online Education
Machine Learning-Based Research on the Adaptability of Adolescents to Online Education Open
With the rapid advancement of internet technology, the adaptability of adolescents to online learning has emerged as a focal point of interest within the educational sphere. However, the academic community's efforts to develop predictive m…
View article: Outcomes of Investigating T Wave Inversion With Echocardiography in an Unselected Young Male Preparticipation Cohort
Outcomes of Investigating T Wave Inversion With Echocardiography in an Unselected Young Male Preparticipation Cohort Open
BACKGROUND Electrocardiography (ECG) may be performed as part of preparticipation sports screening. Recommendations on screening of athletes to identify individuals with previously unrecognized cardiac disease are robust; however, data gui…
View article: The utilization of atrial sensing dipole in single lead implantable cardioverter defibrillator for detection of new‐onset atrial high‐rate episodes or subclinical atrial fibrillation: A systematic review and meta‐analysis
The utilization of atrial sensing dipole in single lead implantable cardioverter defibrillator for detection of new‐onset atrial high‐rate episodes or subclinical atrial fibrillation: A systematic review and meta‐analysis Open
This meta‐analysis aims to evaluate the performance of atrial sensing dipole in single lead implantable cardioverter defibrillator (VDD‐ICD) recipients in particular diagnosing new‐onset atrial high‐rate episodes (AHREs) defined as rate th…
View article: Acute pericarditis and cardiac tamponade after COVID-19 vaccination
Acute pericarditis and cardiac tamponade after COVID-19 vaccination Open
INTRODUCTION Since December 2019, there has been a rapid and unprecedented spread of coronavirus disease 2019 (COVID-19) globally. As of 11 May 2021, over 157 million cases and 3.2 million deaths have been reported globally since the start…
View article: Prevalence and diagnostic yield of investigating t wave inversion in a large unselected pre-participation cohort of young Asian males
Prevalence and diagnostic yield of investigating t wave inversion in a large unselected pre-participation cohort of young Asian males Open
Background/Introduction T wave inversion (TWI) is a potentially abnormal finding on pre-participation screening electrocardiography (ECG), as it may suggest an underlying cardiomyopathy that should be risk stratified appropriately to minim…
View article: Evaluation of electrocardiographic predictors of brugada type response during flecainide challenge
Evaluation of electrocardiographic predictors of brugada type response during flecainide challenge Open
Background/Introduction Brugada syndrome (BrS) is a hereditary channelopathy with an increased risk of sudden cardiac death. Most BrS patients manifest non type 1 Brugada pattern electrocardiography (ECG). Sodium channel blockade is a well…
View article: Machine learning versus classic electrocardiographic criteria for the detection of echocardiographic left ventricular hypertrophy in a pre-participation cohort
Machine learning versus classic electrocardiographic criteria for the detection of echocardiographic left ventricular hypertrophy in a pre-participation cohort Open
Machine learning methods are superior to classical ECG criteria in diagnosing echocardiographic LVH in the context of pre-participation screening.
View article: Electrocardiography findings in right ventricular apical pacing
Electrocardiography findings in right ventricular apical pacing Open
A 78-year-old Chinese man presented with lower limb swelling.He had a background of hypertension, diabetes mellitus, dyslipidaemia, chronic kidney disease and atrial flutter.He was on atenolol 25 mg for his hypertension and atrial flutter.
View article: Perceptions of a night float system for intern doctors in an internal medicine program: an Asian perspective
Perceptions of a night float system for intern doctors in an internal medicine program: an Asian perspective Open
Long duty hours have been associated with significant medical errors, adverse events, and physician "burn-out". An innovative night float (NF) system has been implemented in our internal medicine program to reduce the negative effects of l…
View article: Effectiveness of near-peer simulation for managing the acutely deteriorating patient among residents of an internal medicine junior residency programme
Effectiveness of near-peer simulation for managing the acutely deteriorating patient among residents of an internal medicine junior residency programme Open
Near-peer simulation training was found to be a viable and valuable method of instruction for first-year residents for increasing experience, instilling confidence and improving perceived knowledge. Integration of such programmes within me…
View article: Issue Information
Issue Information Open
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View article: A Population‐wide study of electrocardiographic (ECG) norms and the effect of demographic and anthropometric factors on selected ECG characteristics in young, Southeast Asian males—results from the Singapore Armed Forces ECG (SAFE) study
A Population‐wide study of electrocardiographic (ECG) norms and the effect of demographic and anthropometric factors on selected ECG characteristics in young, Southeast Asian males—results from the Singapore Armed Forces ECG (SAFE) study Open
Background Routine use of pre‐participation electrocardiograms (ECGs) has been used by the Singapore Armed Forces, targeting early detection of significant cardiac diseases. We aim to describe the impact of demographic and anthropometric f…
View article: Allometric Relationships for Cardiac Size and Longitudinal Function in Healthy Chinese Adults ― Normal Ranges and Clinical Correlates ―
Allometric Relationships for Cardiac Size and Longitudinal Function in Healthy Chinese Adults ― Normal Ranges and Clinical Correlates ― Open
An optimal b of 1.66 for LVM in healthy Chinese was found to validate well, with superior clinical utility both to that of BSA-based indexing and to b=2.7. The effect of allometric indexing of cardiac function requires further study.
View article: Characterisation of the aortic pulse profile of a radial artery applanation tonometry device in patients with aortic stenosis
Characterisation of the aortic pulse profile of a radial artery applanation tonometry device in patients with aortic stenosis Open
Background Aortic stenosis (AS) is commonly associated with myocardial and systemic arterial dysfunction. We use a radial artery applanation tonometry (B-Pro) device to characterise the arterial pulse profile of patients with AS and compar…