Publications by authors named "Li-Ling Tan"

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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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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Cancer and cardiovascular disease represent the two leading causes of morbidity and mortality worldwide. Women continue to enjoy a greater life expectancy than men. However, this comes at a cost with more women developing diabetes, hypertension and coronary artery disease as they age.

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Venous thromboembolism (VTE) is a leading cause of morbidity and mortality in cancer patients. Low molecular weight heparin (LMWH) has been the standard of care but new guidelines have approved the use of non-vitamin K antagonist oral anticoagulants (NOAC). By conducting an individual patient data (IPD) meta-analysis of randomised controlled trials (RCTs) comparing the outcomes of NOAC versus LMWH in cancer patients, we aim to determine an ideal strategy for the prophylaxis of VTE and prevention of VTE recurrence.

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Background Patients with prior cancer are at increased risk of acute coronary syndrome (ACS) with poorer post-ACS outcomes. We aimed to ascertain if the Global Registry of Acute Coronary Events (GRACE) score accurately predicts mortality risk among patients with ACS and prior cancer. Methods We linked nationwide ACS and cancer registries from 2007 to 2018 in Singapore.

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Background: Cancer therapeutics-related cardiac dysfunction (CTRCD) is a well-recognised complication of cancer treatment. Treatment of CTRCD involves cardioprotective therapy (CPT) which can lead to a recovery of CTRCD with normalisation of the left ventricular ejection fraction (LVEF). As a result, there are potentially millions of cancer survivors with recovered CTRCD on CPT.

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Purpose: Cancer therapies including trastuzumab and anthracyclines are cardiotoxic and cause cardiac dysfunction. To prevent cardiotoxicity, pharmacological agents used in heart failure have been administered concomitantly with cardiotoxic cancer therapy, but few studies to date have performed a head-to-head comparison of these different agents. This systematic review and network meta-analysis of randomized-controlled trials aims to evaluate the efficacy of renin-angiotensin-aldosterone system (RAAS) blockers, namely angiotensin-converting enzyme inhibitors (ACE-Is), aldosterone receptor blockers (ARBs), and mineralocorticoid receptor antagonists (MRAs), in primary prevention against chemotherapy-related cardiac dysfunction in patients receiving anthracyclines and/or trastuzumab.

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Probiotic functionalization of non-dairy beverages has been garnering interest to provide dairy-sensitive populations with greater probiotic product varieties. The addition of probiotics into popularly consumed beverages-carbonated sodas and beers, presents an interesting challenge as the presence of acidic pH, hops-derived compounds, and ethanol have highly deleterious effects. Herein, alginate encapsulation was proposed to improve probiotics viability within sodas and beers.

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Cardio-oncology is an emerging multi-disciplinary field, which aims to reduce morbidity and mortality of cancer patients by preventing and managing cancer treatment-related cardiovascular toxicities. With the exponential growth in cancer and cardiovascular diseases in Asia, there is an emerging need for cardio-oncology awareness among physicians and country-specific cardio-oncology initiatives. In this state-of-the-art review, we sought to describe the burden of cancer and cardiovascular disease in Asia, a region with rich cultural and socio-economic diversity.

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Article Synopsis
  • Anthracyclines are commonly used in chemotherapy but can cause harmful effects on heart function, specifically reducing left ventricular ejection fraction (LVEF).
  • A review of 26 studies involving 910 patients found that the average decline in LVEF after anthracycline treatment was 4.5%, with noticeable deterioration over the first 180 days for those receiving high cumulative doses.
  • While the overall decline was modest, a significant portion of patients experienced serious reductions in heart function, highlighting the need for further research on who could benefit from cardioprotective treatments during anthracycline therapy.
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Background: Patients with cancer are at increased risk of acute myocardial infarction (AMI). It is unclear if the Atherosclerotic Cardiovascular Disease (ASCVD) risk score at incident AMI is reflective of this higher risk in patients with prior cancer than those without. Methods: We linked nationwide AMI and cancer registries from 2008 to 2019.

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Exopolysaccharides from water kefir grains are a potential source of novel, food-safe and functional materials. Herein, prebiotic properties of polysaccharides produced by water kefir-derived Liquorilactobacillus satsumensis bacteria were explored. Strains were cultured in sucrose-supplemented media for exopolysaccharides production, and partial hydrolysis was performed to yield shorter chain polysaccharides.

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Article Synopsis
  • Kefir grains are complex mixtures of bacteria and yeasts that may offer health benefits in milk and water kefir drinks, and the study aimed to explore the microbial communities found in these grains.
  • A total of 158 microbial strains were isolated from kefir grains sourced from a homebrewer in Singapore, with a focus on identifying potential probiotics that can inhibit harmful enteric pathogens.
  • The research successfully identified seven bacterial strains with beneficial probiotic characteristics and potential health advantages, leading to the creation of a "kefir probiotics blend" that could help combat enteric infections.
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Alginate-based formulations have shown desirable functional characteristics for probiotic encapsulation. However, current technologies used to produce these formulations are inefficient, detrimental to probiotics viability or do not produce dry, shelf-stable products. Herein, we developed a novel spray-drying technique that combines particle formation, alginate crosslinking and drying into a single step, thereby streamlining the production of encapsulated probiotics powder.

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Article Synopsis
  • Digital polymerase chain reaction (dPCR) is a new molecular diagnostic method that offers enhanced sensitivity, precision, and specificity compared to traditional quantitative PCR (qPCR).
  • Eight companies currently manufacture commercial dPCR instruments, including Fluidigm, Bio-Rad, and Qiagen, each with unique technical features and applications.
  • The paper outlines the working principles of these devices, evaluates their usability and costs, and explores future developments in dPCR technology.
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Patients with cancer are at increased risk of myocardial infarction (MI) and stroke. Guidelines do not address lipid profile targets for these patients. Within the lipid profiles, we hypothesized that patients with cancer develop MI or stroke at lower low density lipoprotein cholesterol (LDL-C) concentrations than patients without cancer and suffer worse outcomes.

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The utility of neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) utility in predicting immune-related adverse events (irAEs) and survival have not been well studied in the context of treatment with immune checkpoint inhibitors (ICIs). We performed a case-control study of cancer patients who received at least one dose of ICI in a tertiary hospital. We examined NLR and PLR in irAE cases and controls.

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Background: Colorectal cancer patients undergoing surgical resection are at increased short-term risk of post-operative adverse events. However, specific predictors for long-term major adverse cardiac and cerebrovascular events (MACCE) are unclear. We hypothesised that patients who receive chemotherapy are at higher risk of MACCE than those who did not.

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This position statement from the Heart Failure Association of the European Society of Cardiology Cardio-Oncology Study Group in collaboration with the International Cardio-Oncology Society presents practical, easy-to-use and evidence-based risk stratification tools for oncologists, haemato-oncologists and cardiologists to use in their clinical practice to risk stratify oncology patients prior to receiving cancer therapies known to cause heart failure or other serious cardiovascular toxicities. Baseline risk stratification proformas are presented for oncology patients prior to receiving the following cancer therapies: anthracycline chemotherapy, HER2-targeted therapies such as trastuzumab, vascular endothelial growth factor inhibitors, second and third generation multi-targeted kinase inhibitors for chronic myeloid leukaemia targeting BCR-ABL, multiple myeloma therapies (proteasome inhibitors and immunomodulatory drugs), RAF and MEK inhibitors or androgen deprivation therapies. Applying these risk stratification proformas will allow clinicians to stratify cancer patients into low, medium, high and very high risk of cardiovascular complications prior to starting treatment, with the aim of improving personalised approaches to minimise the risk of cardiovascular toxicity from cancer therapies.

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Aims: The performance of N-terminal pro-B-type natriuretic peptide (NT-proBNP) in diagnosing acute decompensated heart failure (ADHF) among patients presenting with breathlessness is markedly impaired in the presence of atrial fibrillation (AF). We evaluated the diagnostic performance of mid-regional pro-adrenomedullin (MR-proADM) and cardiac troponin T as possible alternative markers for discrimination of ADHF in this setting.

Methods And Results: Breathless patients (n = 1107) were prospectively and contemporaneously recruited in emergency departments in Singapore and New Zealand.

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Background: This self-report measure is a new instrument to measure the extent of and reasons for medication adherence separately. However, few studies have assessed its psychometric properties in diabetic patients and also in Asian populations.

Objectives: To validate this self-report measure in diabetic patients in Singapore.

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Article Synopsis
  • The study analyzed data from 7,597 patients who underwent primary percutaneous coronary intervention for ST-segment-elevation myocardial infarction between 2007 and 2013 to examine the impact of reperfusion time on heart failure (HF) events.
  • It found that although the median time to achieve reperfusion (first medical contact to deployment of first device) significantly decreased from 91 minutes in 2007 to 58 minutes in 2013, there was no change in overall mortality rates during that period.
  • The research indicated a trend of increasing HF at admission and HF rehospitalization rates, suggesting that longer reperfusion times were linked to higher risks of both postadmission in-hospital HF and rehospitalization within
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