Vincent CH Chung

Vincent CH Chung


Research Focus & Metrics

Academic Career Length

21Years (2006-Present)

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

Representative Publications

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19 September 2023 in Implementation Science
Verified
Journal Article
Open access
PDF file
YWYingxuan Wang
Yingxuan Wang
Eliza WongEliza Wong
Eliza Wong
PNPer Nilsen
Per Nilsen
VCVincent CH Chung
Vincent CH Chung
EWEliza Wong
Eliza Wong
EYEK Yeoh
EK Yeoh
Background: A proliferation of theories, models, and frameworks (TMFs) have been developed in the implementation science field to facilitate the implementation process. The basic features of these TMFs have been identified by several reviews. However, systematic appraisals on the quality of these TMFs are inadequate. To fill this gap, this study aimed to assess the usability, applicability, and testability of the current TMFs in a structured way. Methods: A scoping review method was employed. Electronic databases were searched to locate English and Chinese articles published between January 2000 and April 2022. Search terms were specific to implementation science. Additionally, hand searches were administered to identify articles from related reviews. Purpose and characteristics such as the type of TMF, analytical level, and observation unit were extracted. Structured appraisal criteria were adapted from Birken et al.’s Theory Comparison and Selection Tool (T-CaST) to conduct an in-depth analysis of the TMFs’ usability, applicability, and testability. Results: A total of 143 TMFs were included in this analysis. Among them, the most common purpose was to identify barriers and facilitators. Most TMFs applied the descriptive method to summarize the included constructs or the prescriptive method to propose courses of implementation actions. TMFs were mainly mid-range theories built on existing conceptual frameworks or demonstrated grand theories. The usability of the TMFs needs to be improved in terms of the provision of conceptually matched strategies to barriers and facilitators and instructions on the TMFs usage. Regarding the applicability, little attention was paid to the constructs of macro-level context, stages of scale-up and sustainability, and implementation outcomes like feasibility, cost, and penetration. Also, fewer TMFs could propose recommended research and measurement methods to apply the TMFs. Lastly, explicit hypotheses or propositions were lacking in most of the TMFs, and empirical evidence was lacking to support the claimed mechanisms between framework elements in testability. Conclusions: Common limitations were found in the usability, application, and testability of the current TMFs. The findings of this review could provide insights for developers of TMFs for future theoretical advancements.

13 June 2017 in Scientific Reports
Verified
Journal Article
Open access
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MCMalcolm W. C. Chan
Malcolm W. C. Chan
XWXin Yin Wu
Xin Yin Wu
JWJustin C. Y. Wu
Justin C. Y. Wu
SWSamuel Wong
Samuel Wong
VCVincent CH Chung
Vincent CH Chung
Acupuncture is increasingly used worldwide. It is becoming more accepted by both patients and healthcare providers. However, the current understanding of its adverse events (AEs) is fragmented. We conducted this overview to collect all systematic reviews (SRs) on the AEs of acupuncture and related therapies. MEDLINE and EMBASE were searched from inception to December 2015. Methodological quality of included reviews was assessed with a validated instrument. Evidence was narratively reported. Seventeen SRs covering various types of acupuncture were included. Methodological quality of the reviews was overall mediocre. Four major categories of AEs were identified, which are organ or tissue injuries (13 reviews, median: 36 cases, median deaths: 4), infections (11 reviews, median: 17 cases, median deaths: 0.5), local AEs or reactions (12 reviews, median: 8.5 cases, no deaths were reported), and other complications such as dizziness or syncope (11 reviews, median: 21 cases, no deaths were reported). Minor and serious AEs can occur during the use of acupuncture and related modalities, contrary to the common impression that acupuncture is harmless. Serious AEs are rare, but need significant attention as mortality can be associated with them. Referrals should consider acupuncturists’ training credibility, and patient safety should be a core part of acupuncture education.

1 March 2016 in Medicine
Verified
Journal Article
Open access
CLCharlotte H. Y. Lau
Charlotte H. Y. Lau
XWXinyin Wu
Xinyin Wu
VCVincent CH Chung
Vincent CH Chung
XLXin Liu
Xin Liu
EHEdwin P. Hui
Edwin P. Hui
JWJustin C. Y. Wu
Justin C. Y. Wu
Available systematic reviews showed uncertainty on the effectiveness of using acupuncture and related therapies for palliative cancer care. The aim of this systematic review and meta-analysis was to summarize current best evidence on acupuncture and related therapies for palliative cancer care. Five international and 3 Chinese databases were searched. Randomized controlled trials (RCTs) comparing acupuncture and related therapies with conventional or sham treatments were considered. Primary outcomes included fatigue, paresthesia and dysesthesias, chronic pain, anorexia, insomnia, limb edema, constipation, and health-related quality of life, of which effective conventional interventions are limited. Thirteen RCTs were included. Compared with conventional interventions, meta-analysis demonstrated that acupuncture and related therapies significantly reduced pain (2 studies, n = 175, pooled weighted mean difference: −0.76, 95% confidence interval: −0.14 to −0.39) among patients with liver or gastric cancer. Combined use of acupuncture and related therapies and Chinese herbal medicine improved quality of life in patients with gastrointestinal cancer (2 studies, n = 111, pooled standard mean difference: 0.75, 95% confidence interval: 0.36–1.13). Acupressure showed significant efficacy in reducing fatigue in lung cancer patients when compared with sham acupressure. Adverse events for acupuncture and related therapies were infrequent and mild. Acupuncture and related therapies are effective in reducing pain, fatigue, and in improving quality of life when compared with conventional intervention alone among cancer patients. Limitations on current evidence body imply that they should be used as a complement, rather than an alternative, to conventional care. Effectiveness of acupuncture and related therapies for managing anorexia, reducing constipation, paresthesia and dysesthesia, insomnia, and limb edema in cancer patients is uncertain, warranting future RCTs in these areas.

31 May 2012 in Health Expectations
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Journal Article
Closed access
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VCVincent CH Chung
Vincent CH Chung
PMPolly H. X. Ma
Polly H. X. Ma
CLChun Hong Lau
Chun Hong Lau
SWSamuel Wong
Samuel Wong
EYEng Kiong Yeoh
Eng Kiong Yeoh
SGSian M. Griffiths
Sian M. Griffiths

6 July 2010 in BMC Public Health
Verified
Journal Article
Open access
PDF file
SWSamuel Wong
Samuel Wong
KKKenny Kung
Kenny Kung
SGSian M Griffiths
Sian M Griffiths
TCTanya Carthy
Tanya Carthy
Martin WongMartin Wong
Martin Wong
BSBarbara Starfield
Barbara Starfield
The main goal of Hong Kong's publicly-funded general outpatient clinics (GOPCs) is to provide primary medical services for the financially vulnerable. The objective of the current study was to compare the primary care experiences of GOPC users and the users of care provided by private general practitioners (GPs) in Hong Kong via a territory-wide telephone survey.

26 November 2015 in Scientific Reports
Verified
Journal Article
Open access
XWXinyin Wu
Xinyin Wu
VCVincent CH Chung
Vincent CH Chung
EHEdwin P Hui
Edwin P Hui
EZEric Tc Ziea
Eric Tc Ziea
BNBacon Fl Ng
Bacon Fl Ng
JWJustin Cy Wu
Justin Cy Wu
Acupuncture and related therapies such as moxibustion and transcutaneous electrical nerve stimulation are often used to manage cancer-related symptoms, but their effectiveness and safety are controversial. We conducted this overview to summarise the evidence on acupuncture for palliative care of cancer. Our systematic review synthesised the results from clinical trials of patients with any type of cancer. The methodological quality of the 23 systematic reviews in this overview, assessed using the Methodological Quality of Systematic Reviews Instrument, was found to be satisfactory. There is evidence for the therapeutic effects of acupuncture for the management of cancer-related fatigue, chemotherapy-induced nausea and vomiting and leucopenia in patients with cancer. There is conflicting evidence regarding the treatment of cancer-related pain, hot flashes and hiccups and improving patients’ quality of life. The available evidence is currently insufficient to support or refute the potential of acupuncture and related therapies in the management of xerostomia, dyspnea and lymphedema and in the improvement of psychological well-being. No serious adverse effects were reported in any study. Because acupuncture appears to be relatively safe, it could be considered as a complementary form of palliative care for cancer, especially for clinical problems for which conventional care options are limited.