Kelvin Tsoi

Prof. Kelvin Tsoi


Research Focus & Metrics

Academic Career Length

18Years (2009-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
3 January 2024 in npj Digital Medicine
Verified
Journal Article
Open access
PDF file
ACAaron T. C. Chan
Aaron T. C. Chan
RIRoy T. F. Ip
Roy T. F. Ip
JTJoshua Y. S. Tran
Joshua Y. S. Tran
JCJoyce Y. C. Chan
Joyce Y. C. Chan
KTKelvin Tsoi
Kelvin Tsoi
Dementia is a common medical condition in the ageing population, and cognitive intervention is a non-pharmacologic strategy to improve cognitive functions. This meta-analysis evaluated the benefits of computerized cognitive training (CCT) on memory functions in individuals with MCI or dementia. The study was registered prospectively with PROSPERO under CRD42022363715 and received no funding. The search was conducted on MEDLINE, Embase, and PsycINFO on Sept 19, 2022, and Google Scholar on May 9, 2023, to identify randomized controlled trials that examined the effects of CCT on memory outcomes in individuals with MCI or dementia. Mean differences and standard deviations of neuropsychological assessment scores were extracted to derive standardized mean differences. Our search identified 10,678 studies, of which 35 studies were included. Among 1489 participants with MCI, CCT showed improvements in verbal memory (SMD (95%CI) = 0.55 (0.35–0.74)), visual memory (0.36 (0.12–0.60)), and working memory (0.37 (0.10–0.64)). Supervised CCT showed improvements in verbal memory (0.72 (0.45–0.98)), visual memory (0.51 (0.22–0.79)), and working memory (0.33 (0.01–0.66)). Unsupervised CCT showed improvement in verbal memory (0.21 (0.04–0.38)) only. Among 371 participants with dementia, CCT showed improvement in verbal memory (0.64 (0.02–1.27)) only. Inconsistency due to heterogeneity (as indicated by I2 values) is observed, which reduces our confidence in MCI outcomes to a moderate level and dementia outcomes to a low level. The results suggest that CCT is efficacious on various memory domains in individuals with MCI. Although the supervised approach showed greater effects, the unsupervised approach can improve verbal memory while allowing users to receive CCT at home without engaging as many healthcare resources.

1 July 2018 in Journal of the American Medical Directors Association
Verified
Journal Article
Closed access
KTKelvin Tsoi
Kelvin Tsoi
JCJoyce Y.C. Chan
Joyce Y.C. Chan
YNYiu-Ming Ng
Yiu-Ming Ng
MLMia M.Y. Lee
Mia M.Y. Lee
TKTimothy C.Y. Kwok
Timothy C.Y. Kwok
SWSamuel Wong
Samuel Wong

18 March 2021 in The Journal of Clinical Hypertension
Verified
Journal Article
Open access
PDF file
NVNARSINGH VERMA
NARSINGH VERMA
SRSmriti Rastogi
Smriti Rastogi
YCYook‐Chin Chia
Yook‐Chin Chia
SSSaulat Siddique
Saulat Siddique
YTYuda Turana
Yuda Turana
KKKazuomi Kario
Kazuomi Kario
Hypertension is an insidious disease which predisposes to cardiovascular complications and if not treated properly can lead to various serious complications. Economic limitations, having additional benefits with few or almost no side effects have made non‐pharmacological management of hypertension an attractive approach for dealing with hypertension, in developed and developing countries alike. A MEDLINE search was done for relevant references with emphasis on original studies, randomized controlled trials, and meta‐analyses for this review paper. Lifestyle modifications including changes in the dietary pattern, adopting special diets with low sodium, saturated fat and high calcium, magnesium and potassium and trying the new methods like time restricted meal intake which work in tandem with the circadian rhythm are opening new vistas in the field of non‐pharmacological management of hypertension. Lifestyle modifications that effectively lower blood pressure are increased physical activity, weight loss, limited alcohol consumption, relaxation techniques of Yoga, Acupuncture, Tai chi, mindfulness‐based stress‐reduction program, and Transcendental Meditation. Air pollution of the surrounding air is linked with poor health outcomes and is a major contributor to the global burden of disease. Fine particulate matter <2.5 μm in diameter (PM2.5) is strongly associated with cardiovascular morbidity and mortality. Short‐term PM exposure (hours to weeks) increases the likelihood of adverse cardiovascular events including myocardial infarction, stroke, and heart failure, and longer‐term exposure multiplies that risk. Non‐pharmacological methods should be initiated early phase of disease and should be continued with medication.

14 January 2020 in Gut
Verified
Journal Article
Closed access
PDF file
CSCheuk-Chun Szeto
Cheuk-Chun Szeto
KSKentaro Sugano
Kentaro Sugano
JWJi-Guang Wang
Ji-Guang Wang
KFKazuma Fujimoto
Kazuma Fujimoto
SWSamuel Whittle
Samuel Whittle
Francis Ka Leung ChanFrancis Ka Leung Chan
Francis Ka Leung Chan
Background Non-steroidal anti-inflammatory drugs (NSAIDs) are one of the most commonly prescribed medications, but they are associated with a number of serious adverse effects, including hypertension, cardiovascular disease, kidney injury and GI complications. Objective To develop a set of multidisciplinary recommendations for the safe prescription of NSAIDs. Methods Randomised control trials and observational studies published before January 2018 were reviewed, with 329 papers included for the synthesis of evidence-based recommendations. Results Whenever possible, a NSAID should be avoided in patients with treatment-resistant hypertension, high risk of cardiovascular disease and severe chronic kidney disease (CKD). Before treatment with a NSAID is started, blood pressure should be measured, unrecognised CKD should be screened in high risk cases, and unexplained iron-deficiency anaemia should be investigated. For patients with high cardiovascular risk, and if NSAID treatment cannot be avoided, naproxen or celecoxib are preferred. For patients with a moderate risk of peptic ulcer disease, monotherapy with a non-selective NSAID plus a proton pump inhibitor (PPI), or a selective cyclo-oxygenase-2 (COX-2) inhibitor should be used; for those with a high risk of peptic ulcer disease, a selective COX-2 inhibitor plus PPI are needed. For patients with pre-existing hypertension receiving renin-angiotensin system blockers, empirical addition (or increase in the dose) of an antihypertensive agent of a different class should be considered. Blood pressure and renal function should be monitored in most cases. Conclusion NSAIDs are a valuable armamentarium in clinical medicine, but appropriate recognition of high-risk cases, selection of a specific agent, choice of ulcer prophylaxis and monitoring after therapy are necessary to minimise the risk of adverse events.

1 December 2021 in Ageing Research Reviews
Verified
Journal Article
Closed access
JCJoyce Y.C. Chan
Joyce Y.C. Chan
SYSarah T.Y. Yau
Sarah T.Y. Yau
TKTimothy C.Y. Kwok
Timothy C.Y. Kwok
KTKelvin Tsoi
Kelvin Tsoi

24 October 2019 in PLOS ONE
Verified
Journal Article
Open access
PDF file
Jeremy Yuen Chun TeohJeremy Yuen Chun Teoh
Jeremy Yuen Chun Teoh
HHHoyee W Hirai
Hoyee W Hirai
JHJason M W Ho
Jason M W Ho
FCFelix C H Chan
Felix C H Chan
KTKelvin Tsoi
Kelvin Tsoi
CNChi-Fai, Anthony Ng
Chi-Fai, Anthony Ng
To investigate the global incidence of prostate cancer with special attention to the changing age structures. Data regarding the cancer incidence and population statistics were retrieved from the International Agency for Research on Cancer in World Health Organization. Eight developing and developed jurisdictions in Asia and the Western countries were selected for global comparison. Time series were constructed based on the cancer incidence rates from 1988 to 2007. The incidence rate of the population aged ≥ 65 was adjusted by the increasing proportion of elderly population, and was defined as the “aging-adjusted incidence rate”. Cancer incidence and population were then projected to 2030. The aging-adjusted incidence rates of prostate cancer in Asia (Hong Kong, Japan and China) and the developing Western countries (Costa Rica and Croatia) had increased progressively with time. In the developed Western countries (the United States, the United Kingdom and Sweden), we observed initial increases in the aging-adjusted incidence rates of prostate cancer, which then gradually plateaued and even decreased with time. Projections showed that the aging-adjusted incidence rates of prostate cancer in Asia and the developing Western countries were expected to increase in much larger extents than the developed Western countries.