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PLOS ONE | 2012

Organizational Determinants of Interprofessional Collaboration in Integrative Health Care: Systematic Review of Qualitative Studies

Vincent C.H. Chung; Polly H. X. Ma; Lau Chun Hong; Sian Griffiths

Context Inteprofessional collaboration (IPC) between biomedically trained doctors (BMD) and traditional, complementary and alternative medicine practitioners (TCAMP) is an essential element in the development of successful integrative healthcare (IHC) services. This systematic review aims to identify organizational strategies that would facilitate this process. Methods We searched 4 international databases for qualitative studies on the theme of BMD-TCAMP IPC, supplemented with a purposive search of 31 health services and TCAM journals. Methodological quality of included studies was assessed using published checklist. Results of each included study were synthesized using a framework approach, with reference to the Structuration Model of Collaboration. Findings Thirty-seven studies of acceptable quality were included. The main driver for developing integrative healthcare was the demand for holistic care from patients. Integration can best be led by those trained in both paradigms. Bridge-building activities, positive promotion of partnership and co-location of practices are also beneficial for creating bonding between team members. In order to empower the participation of TCAMP, the perceived power differentials need to be reduced. Also, resources should be committed to supporting team building, collaborative initiatives and greater patient access. Leadership and funding from central authorities are needed to promote the use of condition-specific referral protocols and shared electronic health records. More mature IHC programs usually formalize their evaluation process around outcomes that are recognized both by BMD and TCAMP. Conclusions The major themes emerging from our review suggest that successful collaborative relationships between BMD and TCAMP are similar to those between other health professionals, and interventions which improve the effectiveness of joint working in other healthcare teams with may well be transferable to promote better partnership between the paradigms. However, striking a balance between the different practices and preserving the epistemological stance of TCAM will remain the greatest challenge in successful integration.


PLOS ONE | 2013

Indacaterol for Chronic Obstructive Pulmonary Disease: Systematic Review and Meta-Analysis

Vincent C.H. Chung; Polly H. X. Ma; David Hui; Wilson W.S. Tam; Jin-Ling Tang

Background Inhaled bronchodilators are the first-line therapy for COPD. Indacaterol is a novel addition to existing long-acting bronchodilators. Objectives Systematic review of randomized controlled trials (RCT) on efficacy and safety of indacaterol as compared: 1) with placebo at different dosages, 2) with existing bronchodilators; (3) as add-on treatment to tiotropium. Methods We searched 13 electronic databases, including MEDLINE, EMBASE and CENTRAL, and contacted the manufacturer for unpublished data. Primary outcome was mean FEV1 change at 12th week, secondary outcomes included changes in SGRQ, TDI and BODE index at 6 months, exacerbation at 1 year, and worsening of symptoms. Results Twelve eligible RCTs of moderate risk of bias included data from 10,977 patients. Compared to placebo, indacaterol improved FEV1 by a weighted mean difference (WMD) of 0.16 L (95%CI: 0.15, 0.18 L, p<0.001), homogeneously above the minimally important difference of 0.10 L. It offered clinically relevant improvement in all secondary outcomes except exacerbation. Magnitude of benefit did not differ significantly by dosage, but one treatment related death was reported at 300 ug. Efficacy of Indacaterol was similar to formoterol and salmeterol (FEV1 WMD = 0.04L, 95%CI: 0.01L, 0.07 L, p = 0.02); and tiotropium (FEV1 WMD = 0.01L, 95%CI: −0.01, 0.03L, p = 0.61). The use of indacaterol on top of tiotropium yielded additional improvement on FEV1 (WMD = 0.07 L, 95%CI: 0.05L, 0.10 L, p<0.001). Conclusion Indacaterol is safe and beneficial for patients with COPD at dosage ≤150 ug. It may serve as a good alternative to existing bronchodilators, or as an add-on to tiotropium for unresponsive patients. Use of higher dosage requires further justification.


Evidence-based Complementary and Alternative Medicine | 2012

Erratum to “Complementary and Alternative Medicine Education for Medical Profession: Systematic Review”

Nana K. Quartey; Polly H. X. Ma; Vincent C.H. Chung; Sian Griffiths

In the original paper, the table describing characteristics of included studies on page 4 (Table 1) includes an error. The “Duration and frequency of intervention” of Donald et al.s study should be “One-off intervention lasting half a day,” rather than “Not reported.” Table 1 Characteristics of included studies.


Evidence-based Complementary and Alternative Medicine | 2012

Developing Policy for Integrating Biomedicine and Traditional Chinese Medical Practice Using Focus Groups and the Delphi Technique

Vincent C.H. Chung; Polly H. X. Ma; Chun Hong Johnson Lau; Sian Griffiths

In Hong Kong, statutory regulation for traditional Chinese medicine (TCM) practitioners has been implemented in the past decade. Increasing use of TCM on top of biomedicine (BM) services by the population has been followed; but corresponding policy development to integrate their practices has not yet been discussed. Using focus group methodology, we explore policy ideas for integration by collating views from frontline BM (n = 50) and TCM clinicians (n = 50). Qualitative data were analyzed under the guidance of structuration model of collaboration, a theoretical model for understanding interprofessional collaboration. From focus group findings we generated 28 possible approaches, and subsequently their acceptability was assessed by a two round Delphi survey amongst BM and TCM policy stakeholders (n = 12). Consensus was reached only on 13 statements. Stakeholders agreed that clinicians from both paradigms should share common goals of providing patient-centered care, promoting the development of protocols for shared care and information exchange, as well as strengthening interprofessional connectivity and leadership for integration. On the other hand, attitudes amongst policy stakeholders were split on the possibility of fostering trust and mutual learning, as well as on enhancing innovation and governmental support. Future policy initiatives should focus on these controversial areas.


Evidence-based Complementary and Alternative Medicine | 2013

Integrating Traditional Chinese Medicine Services in Community Health Centers: Insights into Utilization Patterns in the Pearl River Region of China

Vincent C.H. Chung; Polly H. X. Ma; Harry H.X. Wang; Jia Wang; Lau Chun Hong; Xiaolin Wei; Samuel S. Y. Wong; Jin-Ling Tang; Sian Griffiths

In Chinas healthcare reform, community health centers (CHCs) are designed to take a pivotal role in providing primary care. Whilst about 20% of all outpatient care in China is delivered by the traditional Chinese medicine (TCM) sector, hospitals, instead of CHCs, are major providers. Using current patterns of patient utilization this study aims to inform CHCs on how they may strengthen access to TCM services. Three thousand three hundred and sixty CHC patients from six cities within the urban Pearl Delta Region were enumerated using multistage cluster sampling. Fifty-two percent had visited herbalists within three months with a mean visit frequency of 1.50 times. Herbal treatments, which are cheaper than western medicines, were more popular amongst those who needed to pay out of pocket including the uninsured. Herbal medicines appeared to be an alternative for those who are underinsured. Acupuncturists and massage therapists were visited by smaller proportions, 6.58% and 5.98%, respectively, with a mean three-month visit of 0.27 and 0.26 times. Access was restricted by lack of social insurance coverage. Whilst increasing provision of TCM in CHCs might respond to patient demand, increasing insurance coverage for TCM needs to be evaluated using current evidence on safety and effectiveness.


Evidence-based Complementary and Alternative Medicine | 2013

Add-On Effect of Chinese Herbal Medicine on Mortality in Myocardial Infarction: Systematic Review and Meta-Analysis of Randomized Controlled Trials

Vincent C.H. Chung; Mao Chen; Qin Ying; Wilson W.S. Tam; Xin Yin Wu; Polly H. X. Ma; Eric Ziea; Vivian Wong; Jin-Ling Tang

In China, Chinese herbal medicine (CHM) is widely used as an adjunct to biomedicine (BM) in treating myocardial infarction (MI). This meta-analysis of RCTs evaluated the efficacy of combined CHM-BM in the treatment of MI, compared to BM alone. Sixty-five RCTs (12,022 patients) of moderate quality were identified. 6,036 patients were given CHM plus BM, and 5,986 patients used BM only. Combined results showed clear additional effect of CHM-BM treatment in reducing all-cause mortality (relative risk reduction (RRR) = 37%, 95% CI = 28%–45%, I 2 = 0.0%) and mortality of cardiac origin (RRR = 39%, 95% CI = 22%–52%, I 2 = 22.8). Benefits remained after random-effect trim and fill adjustment for publication bias (adjusted RRR for all-cause mortality = 29%, 95% CI = 16%–40%; adjusted RRR for cardiac death = 32%, 95% CI = 15%–46%). CHM is also found to be efficacious in lowering the risk of fatal and nonfatal cardiogenic shock, cardiac arrhythmia, myocardial reinfarction, heart failure, angina, and occurrence of total heart events. In conclusion, addition of CHM is very likely to be able to improve survival of MI patients who are already receiving BM. Further confirmatory evaluation via large blinded randomized trials is warranted.


Renal Failure | 2013

Mycophenolate mofetil for primary focal segmental glomerulosclerosis: systematic review.

Emily W.Y. Lau; Polly H. X. Ma; Xinyin Wu; Vincent C.H. Chung; Samuel Y. S. Wong

Abstract Background: Current treatments for primary focal segmental glomerulosclerosis (FSGS), including corticosteroids and cyclosporine, are not satisfactory for all patients and may induce significant side effects. Antidotal benefits of mycophenolate mofetil (MMF) as an add-on to these immunosuppressive therapies have been reported. This review aims to systematically summarize the efficacy and safety of MMF as a treatment for primary FSGS. Method: Controlled and uncontrolled clinical trials evaluating the use of MMF in primary FSGS patients were identified from nine electronic databases and four clinical trial registries. Kidney failure was selected as the primary outcome. Results: Three randomized controlled trials (RCT) and 18 uncontrolled pre-post studies were included. Results from RCTs revealed that MMF is no more effective than cyclosporine or cyclophosphamide for promoting kidney function preservation when corticosteroid is used as baseline treatment. One underpowered RCT reported that MMF provides no extra benefit on top of prednisolone, but the result is unlikely to be reliable. Amongst the small, uncontrolled pre-post studies, three of them used MMF as monotherapy, two of which reported successful prevention of kidney failure in all patients. The remaining 15 uncontrolled studies used MMF as add-on therapy and 11 reported kidney failure as an outcome. Amongst them, eight reported no patients developed kidney failure. MMF was generally well tolerated with mild adverse effects, including abdominal discomfort, diarrhea and infections. Conclusions: MMF tended to show beneficial effects in uncontrolled studies which recruited patients with resistance to routine treatments, but such favorable results have only been reported in small, uncontrolled trials. No RCT results suggested that MMF was a good alternative to cyclosporine or cyclophosphamide. The role of MMF as an add-on to current therapies, or as monotherapy, should further be evaluated.


Medicine | 2016

Chinese Herbal Medicine and Salmeterol and Fluticasone Propionate for Chronic Obstructive Pulmonary Disease: Systematic Review and Network Meta-Analysis

Vincent C.H. Chung; Xinyin Wu; Polly H. X. Ma; Robin S.T. Ho; Simon K. Poon; David Hui; Samuel Y. S. Wong; Justin C. Wu

Abstract Among Chinese populations worldwide, Chinese herbal medicines (CHMs) are often used as an adjunct to pharmacotherapy in managing chronic obstructive pulmonary disease (COPD). However, the relative performance among different CHM is unknown. The aim of this study was to evaluate comparative effectiveness of different CHM when used with salmeterol and fluticasone propionate (SFP), compared with SFP alone. This study is a systematic review of randomized controlled trials (RCTs) with network meta-analyses (NMAs). Eight electronic databases were searched. Data from RCTs were extracted for random effect pairwise meta-analyses. Pooled relative risk (RR) with 95% confidence interval (CI) was used to quantify the impact of CHM and SFP on forced expiratory volume in 1 second (FEV1), St Georges Respiratory Questionnaire (SGRQ) scoring, and 6-Minute Walk Test (6MWT). NMA was used to explore the most effective CHM when used with SFP. Eleven RCTs (n = 925) assessing 11 different CHM were included. Result from pairwise meta-analyses indicated favorable, clinically relevant benefit of CHM and SFP on FEV1 [7 studies, pooled weighted mean difference (WMD) = 0.20 L, 95% CI: 0.06–0.34 L], SGRQ scoring (5 studies, pooled WMD = −4.99, 95% CI: −7.73 to −2.24), and 6MWT (3 studies, pooled WMD = 32.84 m, 95% CI: 18.26–47.42). Results from NMA showed no differences on the comparative effectiveness among CHM formulations for improving FEV1. For SGRQ, NMA suggested that Runfeijianpibushen decoction and Renshenbufei pills performed best. Use of CHM on top of SFP can provide clinically relevant benefit for COPD patients on FEV1 and SGRQ. Additional use of Runfeijianpibushen decoction and Renshenbufei pills showed better effect on improving SGRQ. Use of CHM and SFP may provide clinically relevant benefit for COPD patients on FEV1, SGRQ, and 6MWT. Use of different CHM formulae included in this NMA showed similar effect for increasing FEV1, while the additional use of Runfeijianpibushen formula and Renshenbufei Pills showed better effect on improving SGRQ. Well conducted, adequately powered trials are needed to confirm their effectiveness in the future.


Chinese Journal of Integrative Medicine | 2012

Emotionless holism: Factor and rasch analysis of the Chinese Integrative Medicine Attitude Questionnaire

Vincent C.H. Chung; Marc Chong; Lau Chun Hong; Polly H. X. Ma; Samuel Y. S. Wong; Sian Griffiths

ObjectiveTo examine the Eastern-Western difference in the interpretation of Integrative Medicine Attitude Questionnaire (IMAQ) by assessing the psychometric properties of a revised Chinese medicine (CM)-specific version of IMAQ (CM-IMAQ).MethodsFactor and Rasch analysis were performed with data collected from a mail survey of 165 Hong Kong Western medical doctors (WMD) randomly sampled from the official registry. The structural validity, unidimensionality, item fit, and differential item functioning (DIF) of the Hong Kong CM-IMAQ were evaluated.ResultsConfirmatory factor analysis (CFA) demonstrated that the original IMAQ factor structure was not concordant with our data on Chinese WMD, and subsequent explanatory factor analysis (EFA) validated a new three-factor model for CM-IMAQ: (1) attitude towards “tonification”, (2) attitude towards the effectiveness of CM, and (3) attitude towards CM knowledge. The original IMAQ factor on holism and doctor-patient relationship disappeared. Rasch analysis confirmed the unidimensionality of “tonification” and the effectiveness domains, but further refinement of the knowledge domain is needed.ConclusionsCultural adaptation of the IMAQ has demonstrated differences between Eastern and Western doctors trained in allopathic medicine in their interpretations of holism in healthcare. For Chinese WMD, the emphasis of holistic care is placed on “tonifying” the body rather than on nurturing the mind and spirit. Confucian and Taoist conceptualizations of mental health as well as the persistent stigma towards mental illness within modern Chinese culture may explain why Chinese WMD do not regard mental health promotion as part of routine healthcare.


Health Expectations | 2014

Views on traditional Chinese medicine amongst Chinese population: a systematic review of qualitative and quantitative studies

Vincent C.H. Chung; Polly H. X. Ma; Chun Hong Lau; Samuel Y. S. Wong; Eng-kiong Yeoh; Sian Griffiths

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Vincent C.H. Chung

The Chinese University of Hong Kong

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Sian Griffiths

The Chinese University of Hong Kong

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Samuel Y. S. Wong

The Chinese University of Hong Kong

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Jin-Ling Tang

The Chinese University of Hong Kong

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Lau Chun Hong

The Chinese University of Hong Kong

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Xinyin Wu

The Chinese University of Hong Kong

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Chun Hong Lau

The Chinese University of Hong Kong

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David Hui

The Chinese University of Hong Kong

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Justin C. Wu

The Chinese University of Hong Kong

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Nana K. Quartey

The Chinese University of Hong Kong

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