Publications by authors named "Siew P Chan"

Brain serotonin dysregulation is associated with dementia and neuropsychiatric symptomology. However, the prognostic utility of circulating serotonin levels in detecting features of prodromal dementia including functional decline, cognitive impairment, mild behavioural impairment and brain atrophy remains unclear. In this prospective study of memory clinic subjects followed-up for ≤5 years, dementia-free subjects, classified as having no cognitive impairment or cognitive impairment, no dementia at baseline, underwent annual neuropsychological assessments including Montreal Cognitive Assessment, Global Cognition scores and Clinical Dementia Rating Scale Global Scores (where a ≥ 0.

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Background: Pathological Q waves at presentation in ST segment elevation myocardial infarction (STEMI) have been associated with poorer clinical outcomes including heart failure. This observational study highlights the prognostic value of pathological Q waves at presentation in the Southeast Asian population.

Methods: Multiethnic Asian patients presenting with STEMI and treated with primary coronary intervention were recruited from 2015 to 2019.

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Purpose Of Review: The aim of this article was to review the up-to-date evidence with regards to the unique features of the Type 2 diabetes (T2D) pathophysiology, complications, response to therapy with the possibility of precision medicine guiding therapeutic decision making in Asia.

Recent Findings: Asia is the epicenter of diabetes. There have been marked advances with genotyping and phenotyping of the Asian patient with T2D, particularly with young onset diabetes where early beta cell failure and rapid progression of complications are more frequent.

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Article Synopsis
  • This study investigates how metabolic dysfunction-associated steatotic liver disease (MASLD) affects long-term survival in patients who have suffered an acute myocardial infarction (AMI) across different body weight categories.
  • The four patient groups analyzed were obesity MASLD, non-obesity MASLD, obesity non-MASLD, and non-obesity non-MASLD, with findings showing that non-obesity MASLD had the highest risk of heart failure and long-term mortality.
  • The results indicate that both obesity and non-obesity MASLD are significant predictors of all-cause mortality post-AMI, particularly highlighting the greater risk associated with non-obesity MASLD.
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Background: The association between platelet endothelial cell adhesion molecule-1 (PECAM-1) with cerebral small-vessel disease and cognition in dementia-free subjects remains uninvestigated.

Methods And Results: A prospective cohort of dementia-free subjects was recruited from memory clinics and followed up for 5 years. Annual neurocognitive assessments and twice-yearly brain magnetic resonance imaging scans were performed.

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Article Synopsis
  • The study aims to project cardiovascular disease (CVD) mortality trends and risk factors from 2025 to 2050 to aid healthcare planning.
  • Using historical data and Poisson regression, projections indicate a significant increase in CVD prevalence (90%), crude mortality (73.4%), and DALYs (54.7%), with ischaemic heart disease and high blood pressure as major contributors.
  • Despite a stable age-standardized CVD prevalence, the study underscores a concerning rise in crude mortality due to an aging population, prompting the need for effective healthcare strategies.
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  • Researchers studied 472 patients with left ventricular thrombus (LVT) to identify unique clinical profiles using cluster analysis.
  • They found two distinct groups: one made up of younger patients with fewer risk factors linked primarily to recent heart attacks, and another older group with more comorbidities related to ischemic cardiomyopathy.
  • The study revealed that the second group had a lower chance of LVT resolution and a higher risk of mortality, highlighting the importance of tailored treatment approaches for different patient profiles.
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Article Synopsis
  • A study forecasts a 91.2% increase in crude cardiovascular disease (CVD) mortality in Asia from 2025 to 2050, despite a 23.0% decrease in the age-standardized mortality rate.
  • Ischaemic heart disease and stroke will remain the top causes of mortality, with Central Asia experiencing the highest mortality rates while high systolic blood pressure is identified as the leading risk factor across most of Asia.
  • The research highlights the need for targeted health interventions due to the significant variations in CVD burden across different regions in Asia.
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Background: NULL-PLEASE is a simple and accurate clinical scoring system developed in a Western cohort of patients with out-of-hospital cardiac arrest (OHCA). The need for blood test results limits its use in early stages of care. We adapted and validated the NULL-EASE score (without laboratory tests) in an independent, multiethnic Asian cohort of patients with out-of-hospital cardiac arrest.

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Article Synopsis
  • - Acute myocardial infarction complicated by cardiogenic shock (AMI-CS) has a high 30-day mortality rate of 55% even after using revascularization techniques and the intra-aortic balloon pump (IABP)
  • Predictors of mortality include prior cardiac arrest, requirement for inotropes/vasopressors, lower pH levels, and certain lab results like lactate and hemoglobin levels
  • A significant portion of patients (44%) may be eligible for more advanced mechanical circulatory support (MCS) options, indicating potential for improved outcomes.
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Aim: Patients with metabolic dysfunction-associated steatotic liver disease (MASLD) are at increased risk of incident cardiovascular disease. However, the clinical characteristics and prognostic importance of MASLD in patients presenting with acute myocardial infarction (AMI) have yet to be examined.

Methods: This study compared the characteristics and outcomes of patients with and without MASLD presenting with AMI at a tertiary centre in Singapore.

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Aims: The performance of circulating soluble urokinase plasminogen activator receptor (suPAR) for predicting the composite endpoint of subsequent heart failure (HF) hospitalisation and/or death at 1 year was assessed in (i) patients with undifferentiated breathlessness, and generalisability was compared in (ii) disparate Western versus Asian sub-cohorts, and in (iii) the sub-cohort adjudicated with HF.

Methods And Results: Patients with acute breathlessness were recruited from the emergency departments in New Zealand (NZ, n = 612) and Singapore (n = 483). suPAR measured in the presentation samples was higher in patients incurring the endpoint (n = 281) compared with survivors (5.

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The rising prevalence of type 2 diabetes (T2D) is posing major challenges for the healthcare systems of many countries, particularly in the Asia-Pacific Region, in which T2D can present at younger ages and lower body mass index when compared with Western nations. There is an important role for insulin therapy in the management of T2D in these nations, but available evidence suggests that insulin is under-utilized and often delayed, to the detriment of patient prognosis. The authors of this article gathered as an advisory panel (representative of some of the larger Asia-Pacific nations) to identify their local barriers to insulin use in T2D, and to discuss ways in which to address these barriers, with their outputs summarized herein.

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Unlabelled: Fracture risk stratification is crucial in countries with limited access to bone density measurement. 24.8% women were in the high-risk category while 30.

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This study aim to investigate if remote intensive coaching for the first 6 months post-AMI will improve adherence to the twice-a-day antiplatelet medication, ticagrelor. Between July 8, 2015, to March 29, 2019, AMI patients were randomly assigned to remote intensive management (RIM) or standard care (SC). RIM participants underwent 6 months of weekly then two-weekly consultations to review medication side effects and medication adherence coaching by a centralized nurse practitioner team, whereas SC participants received usual cardiologist face-to-face consultations.

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Objectives: In dyspneic patients with atrial fibrillation (AF) or obesity, the diagnostic performance of NT-proBNP for acute heart failure is reduced. We evaluated the erythroblast derived protein erythroferrone (ERFE) as an ancillary biomarker for the diagnosis of acute decompensated heart failure (ADHF) in these comorbid subgroups in both Western and Asian populations.

Methods: The diagnostic performance of ERFE (Intrinsic Lifesciences) and NT-proBNP (Roche Cobas e411) for ADHF was assessed in 479 New Zealand (NZ) and 475 Singapore (SG) patients presenting with breathlessness.

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Background: Natriuretic peptide (NP) elevations are prognostic in heart failure (HF), but relative atrial NP deficiency in acute HF has been suggested.

Objectives: The authors compared plasma concentrations and relative strength of associations of A- and B-type NPs with cardiac structure/function and clinical outcomes in HF.

Methods: Midregional pro-atrial natriuretic peptide (MR-proANP), B-type natriuretic peptide (BNP), and N-terminal pro-B-type natriuretic peptide (NT-proBNP) were measured in patients with compensated HF in a prospective, multicenter study.

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Systematic screening for autism in early childhood has been suggested to improve eventual outcomes by facilitating earlier diagnosis and access to intervention. However, clinical implementation of screening has to take into account effectiveness and feasibility of use within a healthcare setting for accurate diagnosis of autism. In Singapore, autism screening using a structured screening tool is not currently employed as a part of routine well-child visits for children in primary care clinics.

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Aim: Out-of-hospital cardiac arrest (OHCA) with an initial non-shockable rhythm is the predominant form of OHCA in adults. We evaluated its 10-year trends in epidemiology and management in Singapore.

Methods: Using the national OHCA registry we studied the trends of 20,844 Emergency Medical Services-attended adult OHCA from April 2010 to December 2019.

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Article Synopsis
  • The Clinical Practice Guidelines aim to provide evidence-based recommendations for healthcare providers dealing with postmenopausal osteoporosis (OP) screening, diagnosis, and management.
  • A comprehensive literature review from 2014 onwards helped update the guidelines by formulating key clinical questions and evaluating relevant studies.
  • Recommended management includes assessing fracture risk, implementing non-pharmacological measures (like calcium intake and exercise), and choosing pharmacological treatments based on the patient's risk level, with regular assessments to adjust treatment as necessary.
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Background: Technological advances make it possible to use device-supported, automated algorithms to aid basal insulin (BI) dosing titration in patients with type 2 diabetes.

Methods: A systematic review and meta-analysis of randomized controlled trials were performed to evaluate the efficacy, safety, and quality of life of automated BI titration versus conventional care. The literature in Medline, Embase, Web of Science, and the Cochrane databases from January 2000 to February 2022 were searched to identify relevant studies.

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Insulin degludec/insulin aspart (IDegAsp) co-formulation provides both basal and mealtime glycaemic control in a single injection. The glucose level-lowering efficacy of IDegAsp is reported to be superior or non-inferior to that of the currently available insulin therapies with a lower rate of overall hypoglycaemia and nocturnal hypoglycaemia. An expert panel from Malaysia aims to provide insights into the utilisation of IDegAsp across a broad range of patients with type 2 diabetes mellitus (i.

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Objectives: Insulin degludec (IDeg)/insulin aspart (IAsp; IDegAsp) is a co-formulation of 70% IDeg and 30% IAsp. According to several randomized controlled trials, IDegAsp is effective and safe for patients with type 2 diabetes mellitus (T2DM). A subgroup analysis of the ARISE study was conducted to explore the safety and efficacy of IDegAsp among Malaysian patients with T2DM in real-world settings.

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Type 2 diabetes mellitus (T2DM) and hypertension are leading risk factors for death and disability in the Middle East. Both conditions are highly prevalent, underdiagnosed and poorly controlled, highlighting an urgent need for a roadmap to overcome the barriers to optimal glycaemic and blood pressure management in this region. This review provides a summary of the Evidence in Diabetes and Hypertension Summit (EVIDENT) held in September 2022, which discussed current treatment guidelines, unmet clinical needs and strategies to improve treatment outcomes for patients with T2DM and hypertension in the Middle East.

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Diabetes is prevalent, and it imposes a substantial public health burden globally and in the Asia-Pacific (APAC) region. The cornerstone for optimizing diabetes management and treatment outcomes is glucose monitoring, the techniques of which have evolved from self-monitoring of blood glucose (SMBG) to glycated hemoglobin (HbA1c), and to continuous glucose monitoring (CGM). Contextual differences with Western populations and limited regionally generated clinical evidence warrant regional standards of diabetes care, including glucose monitoring in APAC.

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