Daniel Chong
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View article: Inpatient‐Onset Versus Outpatient‐Onset ST‐Segment–Elevation Myocardial Infarction in Patients With Percutaneous Coronary Intervention: A National Registry Study
Inpatient‐Onset Versus Outpatient‐Onset ST‐Segment–Elevation Myocardial Infarction in Patients With Percutaneous Coronary Intervention: A National Registry Study Open
Background Compared with patients who develop ST‐segment–elevation myocardial infarction (STEMI) outside the hospital and present at the emergency department (outpatient‐onset), patients with inpatient‐onset STEMI may paradoxically experie…
View article: Conduction System Pacing Versus Biventricular Cardiac Resynchronization Pacing: Meta-Analysis on Outcomes in Patients with Non-Left Bundle Branch Block
Conduction System Pacing Versus Biventricular Cardiac Resynchronization Pacing: Meta-Analysis on Outcomes in Patients with Non-Left Bundle Branch Block Open
Background and Objectives: The role of biventricular pacing (BVP) is less well-established in patients with heart failure with reduced ejection fraction (HFrEF) without left bundle branch block (LBBB). Conduction system pacing (CSP) has ga…
View article: Characteristics and outcomes of patients undergoing extra-pulmonary vein ablation using pulsed field ablation for atrial fibrillation
Characteristics and outcomes of patients undergoing extra-pulmonary vein ablation using pulsed field ablation for atrial fibrillation Open
Introduction PFA has been shown to be comparable to radiofrequency ablation and cryoablation in terms of acute safety and outcome for PVI for AF. Characteristics and outcomes of patients undergoing additional ablations beyond PVI using PFA…
View article: Riding the Highs and Lows of the Conduction System Pacing Wave—Our Experience
Riding the Highs and Lows of the Conduction System Pacing Wave—Our Experience Open
Conduction system pacing started with His bundle pacing (HBP) and then rapidly switched gears into left bundle branch pacing (LBBP). We describe our center’s experience with LBBP using either lumenless leads (LLLs) or stylet-driven leads (…
View article: Pulsed Field Ablation in Atrial Fibrillation: Initial Experience of the Efficacy and Safety in Pulmonary Vein Isolation and Beyond
Pulsed Field Ablation in Atrial Fibrillation: Initial Experience of the Efficacy and Safety in Pulmonary Vein Isolation and Beyond Open
Regional differences in pulsed field ablation (PFA) adoption for pulmonary vein isolation (PVI) with additional posterior wall ablation (PWA) in Asia remains unknown. We hereby report our experience on the safety and efficacy of PFA in AF …
View article: Procedural safety and outcome of additional left atrial posterior wall ablation using pulse field ablation for atrial fibrillation
Procedural safety and outcome of additional left atrial posterior wall ablation using pulse field ablation for atrial fibrillation Open
Introduction Pulsed field ablation (PFA) has recently been shown to be comparable to radiofrequency ablation and cryoablation in terms of acute safety and outcome for pulmonary vein isolation (PVI) for atrial fibrillation (AF). Efficacy an…
View article: Impact of 3-dimensional electroanatomic mapping systems on fluoroscopy reduction in catheter ablation of supraventricular tachycardia - then and now
Impact of 3-dimensional electroanatomic mapping systems on fluoroscopy reduction in catheter ablation of supraventricular tachycardia - then and now Open
Funding Acknowledgements Type of funding sources: None. Background Catheter ablation is an effective first-line treatment for symptomatic and recurrent supraventricular tachycardia (SVT). The advent of 3D electroanatomic mapping (EAM) has …
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: A racing heart post‐Pfizer/<scp>BioNTech BNT162b2</scp>
A racing heart post‐Pfizer/<span>BioNTech BNT162b2</span> Open
Palpitations is one of the most common side effects experienced post-messenger-RNA COVID-19 vaccines. However, some patients experience significant symptoms and further workup needs to be considered. We present an interesting case of inapp…
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: 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: P380The Zerox pilot study: use of zero fluoroscopy for electrophysiological intervention
P380The Zerox pilot study: use of zero fluoroscopy for electrophysiological intervention Open
locations within the anterior RA using a cross-field protocol.The phase singularity corresponding to the tip of the RD was tracked and its trajectory overlaid on the AWT maps to analyse their relationship.Results: Amongst the 4 subjects, 2…
View article: Remote magnetic catheter navigation versus conventional ablation in atrial fibrillation ablation: Fluoroscopy reduction
Remote magnetic catheter navigation versus conventional ablation in atrial fibrillation ablation: Fluoroscopy reduction Open
Background Percutaneous transcatheter radiofrequency ablation of atrial fibrillation with remote controlled magnetic navigation (RMN) has been shown to reduce radiation exposure to patients and physicians compared with conventional manual …
View article: Incidence, indications, risk factors, and survival of patients undergoing cardiac implantable electronic device implantation after open heart surgery
Incidence, indications, risk factors, and survival of patients undergoing cardiac implantable electronic device implantation after open heart surgery Open
Despite an aging population, the incidence of CIED implantation after cardiac surgery remains low and varies by the type of operation. Follow-up suggests increased early survival but decreased late survival in patients who undergo CIED imp…
View article: Patient barriers to implantable cardioverter defi brillator implantation for the primary prevention of sudden cardiac death in patients with heart failure and reduced ejection fraction
Patient barriers to implantable cardioverter defi brillator implantation for the primary prevention of sudden cardiac death in patients with heart failure and reduced ejection fraction Open
This study identified the demographic and social factors of patients who refused ICD therapy. Knowledge of the role of ICDs in preventing SCD was found to be the strongest marker for reconsidering ICD implantation. Measures to address this…
View article: First clinical experience of the safety and feasibility of total subcutaneous implantable defibrillator in an Asian population
First clinical experience of the safety and feasibility of total subcutaneous implantable defibrillator in an Asian population Open
Our initial experience shows that S-ICD is a feasible treatment for VT among an Asian population with smaller body-build. There was nonetheless a relatively high rate of wound complications.
View article: A Brugada syndrome proband with compound heterozygote<i>SCN5A</i>mutations identified from a Chinese family in Singapore
A Brugada syndrome proband with compound heterozygote<i>SCN5A</i>mutations identified from a Chinese family in Singapore Open
Our study is the first to report a SCN5A compound heterozygote in a Singaporean Chinese family. Only the proband carrying both mutations displayed the BrS phenotype, thus providing insights into the expression and penetrance of BrS in an A…