Publications by authors named "Huey Chong"

GaitSmart (Dynamic Metrics Ltd) is a class I CE-marked sensor-based digital technology designed to measure lower limb movement via sensors placed on the body. GaitSmart aims to identify any problems with gait, and provide a personalised rehabilitation programme via the integrated vGym app. The company identified people referred for knee or hip replacement and people at risk of falling as potentially being able to benefit from GaitSmart.

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Introduction: As a result of improving survival rates, the adverse consequences of rectal cancer surgery are becoming increasingly recognised. Low anterior resection syndrome (LARS) is one such consequence and describes a constellation of bowel symptoms after rectal cancer surgery which includes urgency, faecal incontinence, stool clustering and incomplete evacuation. LARS has a significant adverse impact on quality of life (QoL) and symptoms are present in up to 75% of patients in the first year after surgery.

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Aims: Despite the availability of newer antiseizure medications, carbamazepine (CBZ) remains the gold standard. However, patients of Asian ancestry are susceptible to CBZ-related severe cutaneous adverse reactions. Universal HLA-B*15:02 screening is a promising intervention to address this.

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Article Synopsis
  • The study aimed to evaluate the cost-effectiveness of two interventions, a personalized exercise program (PEP) and a cognitive behavioral approach (CBA), for patients with chronic fatigue linked to inflammatory rheumatic diseases compared to standard care (UC).
  • After analyzing data from a clinical trial over 56 weeks, it was found that both PEP and CBA were more expensive than UC, with PEP being significantly more effective at improving patients' quality of life.
  • The findings suggest that adding PEP to standard care is likely a cost-effective option, with high probability of being beneficial to the UK healthcare system based on cost-per-quality-adjusted life year (QALY) gained.
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Background: Freezing all embryos, followed by thawing and transferring them into the uterine cavity at a later stage (freeze-all), instead of fresh-embryo transfer may lead to improved pregnancy rates and fewer complications during in vitro fertilisation and pregnancies resulting from it.

Objective: We aimed to evaluate if a policy of freeze-all results in a higher healthy baby rate than the current policy of transferring fresh embryos.

Design: This was a pragmatic, multicentre, two-arm, parallel-group, non-blinded, randomised controlled trial.

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Article Synopsis
  • The study investigates whether freezing embryos before transferring them leads to more healthy babies than using fresh embryos right away.
  • The results show that freezing embryos doesn't really help improve the chances of having a healthy baby compared to transferring fresh embryos.
  • While freezing has some benefits, like reducing certain health risks and helping some women get pregnant, it also comes with delays and extra costs that make it a debated choice.
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Background: It is estimated that around 30% of breast cancers in post-menopausal women are related to lifestyle. The breast cancer-pooling project demonstrated that sustained weight loss of 2 to 4.5 kg is associated with an 18% lower risk of breast cancer, highlighting the importance of small changes in body weight.

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Article Synopsis
  • The study aimed to investigate the effectiveness of telephone cognitive-behavioral therapy (tCBT) in preventing chronic widespread pain (CWP) among adults identified as high risk through a screening questionnaire.* -
  • In a trial involving 996 participants, results showed no significant difference in CWP onset between those receiving tCBT and those receiving usual care; however, those who underwent tCBT reported a better quality of life.* -
  • Although tCBT didn’t prevent CWP, it was found to be cost-effective and improved participants' overall well-being, highlighting the potential benefits of low-cost mental health interventions.*
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Background: Advanced chronic kidney disease is common in older people and is frequently accompanied by metabolic acidosis. Oral sodium bicarbonate is used to treat this acidosis, but evidence is lacking on whether or not this provides a net gain in health or quality of life for older people.

Objectives: The objectives were to determine whether or not oral bicarbonate therapy improves physical function, quality of life, markers of renal function, bone turnover and vascular health compared with placebo in older people with chronic kidney disease and mild acidosis; to assess the safety of oral bicarbonate; and to establish whether or not oral bicarbonate therapy is cost-effective in this setting.

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Background/aims: Economic evaluation is integral to informed public health decision-making in the rapidly growing field of precision and personalized medicine (PM); however, this research requires specialized expertise and significant resources. Generic models are a novel innovation to efficiently address a critical PM evidence shortage and implementation barrier by enabling use of population-specific input values. This is a generic PM economic evaluation model proof-of-concept study for a pharmacogenomic use case.

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Background: The emergence of personalized medicine (PM) has raised some tensions in healthcare systems. PM is expensive and health budgets are constrained - efficient healthcare delivery is therefore critical. Notwithstanding the cost, many countries have started to adopt this novel technology, including resource-limited Southeast Asia (SEA) countries.

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Objective: Studies found a strong association between allopurinol-induced Stevens-Johnson syndrome (SJS)/toxic epidermal necrolysis (TEN) and the HLA-B*58:01 allele. HLA-B*58:01 screening-guided therapy may mitigate the risk of allopurinol-induced SJS/TEN. This study aimed to evaluate the cost-effectiveness of HLA-B*58:01 screening before allopurinol therapy initiation compared with the current practice of no screening for Malaysian patients with chronic gout in whom a hypouricemic agent is indicated.

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Introduction: Schizophrenia (SCZ) is a highly debilitating disease despite its low prevalence. The economic burden associated with SCZ is substantial and mainly attributed to productivity loss. To improve the understanding of economic burden of SCZ in the low- and middle-income country regions, we aimed to determine the economic burden of SCZ in Malaysia.

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Background: The efficacy of antimicrobial central venous catheters (CVCs) remains questionable. In this network meta-analysis, we aimed to assess the comparative efficacy of antimicrobial CVC impregnations in reducing catheter-related infections in adults.

Methods: We searched 4 electronic databases (Medline, the Cochrane Central Register of Controlled Trials, Embase, CINAHL) and internet sources for randomized controlled trials, ongoing clinical trials, and unpublished studies up to August 2016.

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Aims: A modular interdisciplinary platform was developed to investigate the economic impact of oseltamivir treatment by dosage regimen under simulated influenza pandemic scenarios.

Methods: The pharmacology module consisted of a pharmacokinetic distribution of oseltamivir carboxylate daily area under the concentration-time curve at steady state (simulated for 75 mg and 150 mg twice daily regimens for 5 days) and a pharmacodynamic distribution of viral shedding duration obtained from phase II influenza inoculation data. The epidemiological module comprised a susceptible, exposed, infected, recovered (SEIR) model to which drug effect on the basic reproductive number (R ), a measure of transmissibility, was linked by reduction of viral shedding duration.

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Background: Schizophrenia is one of the top 25 leading causes of disability worldwide in 2013. Despite its low prevalence, its health, social, and economic burden has been tremendous, not only for patients but also for families, caregivers, and the wider society. The magnitude of disease burden investigated in an economic burden study is an important source to policymakers in decision making.

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Background: Medication non-adherence is one of the major challenges in treating patients with depression. This systematic review aims to determine the clinical and economic outcomes of non-adherence in depression.

Methods: A systematic search was performed across the following databases: PubMed, EMBASE, DARE, CINAHL, PsycINFO, Cochrane Central Register of Controlled Trials, and Cochrane Database of Systematic Reviews; from database inception to March 31, 2015.

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Introduction: Pharmacogenetic (PGx) test is a useful tool for guiding physician on an initiation of an optimal warfarin dose. To implement of such strategy, the evidence on the economic value is needed. This study aimed to determine the cost-effectiveness of PGx-guided warfarin dosing compared with usual care (UC).

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Background: A context-specific, spatial-temporal understanding of a chain of tuberculosis (TB) transmission can inform TB elimination strategy.

Methods: Clinical, public health and molecular epidemiologic data were used to: 1) identify and describe a complex cluster of TB cases in Alberta, 2) elucidate transmission sequences, and 3) assess case-patient mobility. Socio-economic indicators in loci of transmission and the province at large were described.

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Unlabelled: BACKGROUND" Fluoroquinolone (FLQ) antibiotics are not uncommonly prescribed for community-acquired pneumonia that is later proven to be pulmonary tuberculosis (TB). Such FLQ monotherapy may result in FLQ-resistant pulmonary TB.

Methods: To assess outpatient FLQ use by patients with culture-proven pulmonary TB before diagnosis, TB registries in Alberta and Saskatchewan, Canada, were linked with provincial and federal drug benefit plans.

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Background: On April 1, 2004, BCG (bacille Calmette-Guérin), a tuberculosis (TB) control vaccine, was discontinued in all but four high-risk communities in Alberta. To confirm the safety of vaccine withdrawal, and for future planning, the annual risk of infection (ARI) was determined in preschool First Nations children.

Methods: First Nations children born into reserve communities in Alberta between April 1, 1998 and March 31, 2004, and still living on reserve in 2004-2005, were identified.

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Several researchers have examined nurses' knowledge sources within the context of research utilization, but conclusions are equivocal. Common problems include a lack of replication, conflicting results, poor generalizability of results, and unclear implications for practice. The objectives of this study were to: (a) describe sources of knowledge and their frequency of use among staff nurses across 7 surgical units, (b) compare knowledge-source patterns across the units, (c) determine whether knowledge-source preferences correlate to research utilization scores, and (d) profile staff nurses' knowledge-source patterns over time.

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