Melbourne School of Health Sciences Collected Works - Research Publications

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    Implementation of a Technology-Assisted Programme to Intensify Upper Limb Rehabilitation in Neurologically Impaired Participants: A Prospective Study
    Galea, M ; Khan, F ; Amatya, B ; Elmalik, A ; Klaic, M ; Abbott, G (Medical Journals Sweden, 2016-06-01)
    Objective: To evaluate the implementation of a technology-assisted programme to intensify upper limb rehabilitation after stroke and other neurological conditions in an Australian community cohort. Methods: A “Hand Hub” was established in a tertiary hospital. Intervention was delivered via individual or group sessions for a period of up to 6 weeks, in addition to the patients’ regular therapy. Patients were assessed before and after the programme using validated measures. Results: A total of 92 participants completed both assessments (mean age 57 years (standard deviation 17 years), 58% male and 88% with stroke). Post-intervention, participants showed significant improvement in arm function and strength (p < 0. 001, effect sizes (r) = 0. 5–0. 7), streamlined Wolf Motor Function Test score (p < 0. 05, r = 0. 2–0. 4), improved muscle tone on the Modified Ashworth Scale (p < 0. 001, r = 0. 4), Functional Independence Measure (locomotion, mobility and psychosocial subscales (p < 0. 05, r = 0. 2–0. 3). Quality of life (EQ-5D) and overall health also improved significantly (p < 0. 01 for all, r = 0. 3–0. 6). Conclusion: The “Hand Hub” programme is feasible and showed promising results for upper limb function in persons with neurological disorders. The findings need to be further confirmed in a larger study sample, with a longer follow-up.
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    How Prolific is Psychotropic Medicines Use in People with Dementia in Australia Within the Community Setting? A Retrospective Analysis.
    Goeman, D ; Harvey, K ; Lee, CY ; Petrie, N ; Beanland, C ; Culhane, C ; Koch, S (Springer Science and Business Media LLC, 2015-09)
    BACKGROUND: When used for a therapeutic purpose such as for psychiatric illness, psychotropic drugs may enhance quality of life; however, when used to treat behaviours associated with dementia, they may have only a modest effect but lead to negative outcomes. OBJECTIVE: We undertook an analysis of community-dwelling people with dementia or cognitive impairment to ascertain how prolific psychotropic medicine use is within the Australian community setting, which psychotropic medicines are being prescribed and to whom, and whether the use of such medicines is in accordance with therapeutic guidelines. METHODS: We undertook a retrospective review of medication records, including medication charts, for 412 people with cognitive impairment, discharged from a home nursing service in Victoria, Australia, during the 6-month period between 1 January and 30 June 2013. RESULTS: Cholinesterase inhibitor use exceeded the number of individuals with a recorded diagnosis of Alzheimer's disease; in some cases, the dosage exceeded recommendations. Antidepressants were used by more than double the number of people documented with a history of depression. Antipsychotic medicines were prescribed for undocumented purposes, in some cases above maximum response levels, and multiple benzodiazepines were prescribed. CONCLUSIONS: Psychotropic medicine use was common in our study population, and use of these medicines was often not in line with therapeutic guidelines. Further research is required to ascertain reasons for the high use of psychotropic medicines in this group, and greater consideration is required by health professionals of the appropriate use and regular review of psychotropic medicines. Improved documentation of diagnoses and the indications for prescribing psychotropic medicines is needed, as is greater implementation of educational programmes to support care workers and carers.
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    A pharmacist-led intervention for increasing the uptake of Home Medicines Review (HMR) among residents of retirement villages (PHARMER): protocol for a cluster randomised controlled trial
    Lee, CY ; George, J ; Elliott, RA ; Stewart, K (BIOMED CENTRAL LTD, 2011-10-31)
    BACKGROUND: The majority of retirement village residents are at risk of medication misadventure. In a recent survey of retirement village residents in Victoria, two-thirds had at least one medication-related risk factor, and hence were eligible to receive a government-subsidised Home Medicines Review (HMR). However, only 6% of eligible residents had received a HMR in the previous 12 months. Reasons for the poor uptake of HMR, and interventions for improving HMR uptake, have been identified and developed with input from stakeholders. The trial will test the effect of Pharmacist-conducted HMR to Address the Risk of Medication-related Events in Retirement Villages (PHARMER) in improving the uptake of HMRs among retirement village residents. METHODS/DESIGN: This is a multicentre prospective cluster randomised controlled trial. Ten retirement villages in Victoria, Australia will be recruited for this trial. Retirement villages will be selected in consultation with the Residents of Retirement Villages Victoria Inc. (RRVV), based on geographical locations (e.g. northeast or southwest), size and other factors. Residents from selected villages will be recruited with the help of RRVV Resident Liaison Officers using a range of strategies. Randomisation will be by geographical location to minimise contamination. Participating villages and residents will be allocated to either Pharmacist Intervention Group (PIG) or Usual Care Group (UCG). Each group will include five retirement villages and will have at least 77 residents in total. The intervention (PHARMER) comprises educating residents regarding HMR, and using a risk assessment checklist by residents to notify their General Practitioners of their medication risk. Uptake of HMR and medication adherence will be assessed in both PIG and UCG at three and six months using telephone interviews and questionnaires. DISCUSSION: This study is the first to develop and test an intervention to improve the uptake of HMR among Australian residents in retirement villages, with a view to decreasing medication risk. A multi-faceted interventional approach will be used as suggested by stakeholders. The trial is expected to be complete by late 2011 and results will be available in 2012. TRIAL REGISTRATION: Australian New Zealand Clinical Trials Registry (ACTRN12611000109909).
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    Medicines Management, Medication Errors and Adverse Medication Events in Older People Referred to a Community Nursing Service: A Retrospective Observational Study.
    Elliott, RA ; Lee, CY ; Beanland, C ; Vakil, K ; Goeman, D (Springer Science and Business Media LLC, 2016-03)
    BACKGROUND: Increasing numbers of older people are receiving support with medicines management from community nursing services (CNSs) to enable them to live in their own homes. Little is known about these people and the support they receive. OBJECTIVES: To explore the characteristics of older people referred for medicines management support, type of support provided, medication errors and adverse medication events (AMEs). METHODS: A retrospective observational study of a random sample of 100 older people referred to a large non-profit CNS for medicines management support over a 3-month period was conducted. Measures were: demographics, referral source, current medical problems, medicines, medication aids, types of medication authorisations used by nurses, frequency of nurse visits and type of support provided, medication errors, AMEs and interdisciplinary teamwork among community nurses, general practitioners and pharmacists. RESULTS: Older people (median 80 years) were referred for medicines support most often by hospitals (39 %). Other referrals were from families/carers, case-managers, palliative care services and general practitioners. Multiple health conditions (median 5) and medicines (median 10) were common; 66 % used ≥5 medicines; 48 % used ≥1 high-risk medicines-most commonly opiates, anticoagulants and insulin. Medication aids were frequently used, mostly multi-compartment dose administration aids (47 %). Most people received regular community nurse visits (≥4 per week) to administer medicines or monitor medicine-taking. Only 16 % had a medication administration chart; for other clients nurses used medicine lists or letters from doctors for medication authorisation. Medication errors occurred in 41 % of people and 13 % had ≥1 AME requiring medical consultation or hospitalisation; 9/13 (64 %) AMEs were potentially preventable. There was little evidence of interdisciplinary teamwork or medication review. CONCLUSION: CNS clients had multiple risk-factors for medication misadventure. Deficiencies in medicines management were identified, including low use of medication charts and interdisciplinary medication review. Strategies are needed to improve medicines management in the home-care setting.
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    Development of a clinical pharmacy model within an Australian home nursing service using co-creation and participatory action research: the Visiting Pharmacist (ViP) study
    Elliott, RA ; Lee, CY ; Beanland, C ; Goeman, DP ; Petrie, N ; Petrie, B ; Vise, F ; Gray, J (BMJ PUBLISHING GROUP, 2017-11)
    OBJECTIVE: To develop a collaborative, person-centred model of clinical pharmacy support for community nurses and their medication management clients. DESIGN: Co-creation and participatory action research, based on reflection, data collection, interaction and feedback from participants and other stakeholders. SETTING: A large, non-profit home nursing service in Melbourne, Australia. PARTICIPANTS: Older people referred to the home nursing service for medication management, their carers, community nurses, general practitioners (GPs) and pharmacists, a multidisciplinary stakeholder reference group (including consumer representation) and the project team. DATA COLLECTION AND ANALYSIS: Feedback and reflections from minutes, notes and transcripts from: project team meetings, clinical pharmacists' reflective diaries and interviews, meetings with community nurses, reference group meetings and interviews and focus groups with 27 older people, 18 carers, 53 nurses, 15 GPs and seven community pharmacists. RESULTS: The model was based on best practice medication management standards and designed to address key medication management issues raised by stakeholders. Pharmacist roles included direct client care and indirect care. Direct care included home visits, medication reconciliation, medication review, medication regimen simplification, preparation of medication lists for clients and nurses, liaison and information sharing with prescribers and pharmacies and patient/carer education. Indirect care included providing medicines information and education for nurses and assisting with review and implementation of organisational medication policies and procedures. The model allowed nurses to refer directly to the pharmacist, enabling timely resolution of medication issues. Direct care was provided to 84 older people over a 15-month implementation period. Ongoing feedback and consultation, in line with participatory action research principles, informed the development and refinement of the model and identification of enablers and challenges. CONCLUSIONS: A collaborative, person-centred clinical pharmacy model that addressed the needs of clients, carers, nurses and other stakeholders was successfully developed. The model is likely to have applicability to home nursing services nationally and internationally.
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    Evaluation of a support worker role, within a nurse delegation and supervision model, for provision of medicines support for older people living at home: the Workforce Innovation for Safe and Effective (WISE) Medicines Care study
    Lee, CY ; Beanland, C ; Goeman, D ; Johnson, A ; Thorn, J ; Koch, S ; Elliott, RA (BIOMED CENTRAL LTD, 2015-10-06)
    BACKGROUND: Support with managing medicines at home is a common reason for older people to receive community nursing services. With population ageing and projected nurse shortages, reliance on nurses may not be sustainable. We developed and tested a new workforce model: 'Workforce Innovation for Safe and Effective (WISE) Medicines Care', which enabled nurses to delegate medicines support home visits for low-risk clients to support workers (known as community care aides [CCAs]). Primary study aims were to assess whether the model increased the number of medicines support home visits conducted by CCAs, explore nurses', CCAs' and consumers' experiences with the CCAs' expanded role, and identify enablers and barriers to delegation of medicines support. METHODS: A prospective before-after mixed-methods study was conducted within a community nursing service that employed a small number of CCAs. The CCAs' main role prior to the WISE Medicines Care model was personal care, with a very limited role in medicines support. CCAs received training in medicines support, and nurses received training in assessment, delegation and supervision. Home visit data over two three-month periods were compared. Focus groups and interviews were conducted with purposive samples of nurses (n = 27), CCAs (n = 7) and consumers (n = 28). RESULTS: Medicines support visits by CCAs increased from 43/16,863 (0.25 %) to 714/21,552 (3.3 %) (p < 0.001). Nurses reported mostly positive experiences, and high levels of trust and confidence in CCAs. They reported that delegating to CCAs sometimes eliminated the need for duplicate nurse and CCA visits (for people requiring personal care plus medicines support) and enabled them to visit people with more complex needs. CCAs enjoyed their expanded role and were accepted by clients and/or carers. Nurses and CCAs reported effective communication when medicine-related problems occurred. No medication incidents involving CCAs were reported. Barriers to implementation included the limited number of CCAs employed in the organisation and reluctance from some nurses to delegate medicines support to CCAs. Enablers included training and support, existing relationships between CCAs and nurses, and positive staff attitudes. CONCLUSIONS: Appropriately trained and supervised support workers can be used to support community nurses with providing medicines management for older people in the home care setting, particularly for those who are at low risk of adverse medication events or errors. The model was acceptable to nurses, clients and carers, and may offer a sustainable and safe and effective future workforce solution to provision of medicines support for older people in the home care setting.
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    The Global Lung Function Initiative (GLI) Network: bringing the world's respiratory reference values together
    Cooper, BG ; Stocks, J ; Hall, GL ; Culver, B ; Steenbruggen, I ; Carter, KW ; Thompson, BR ; Graham, BL ; Miller, MR ; Ruppel, G ; Henderson, J ; Fragoso, CAV ; Stanojevic, S (EUROPEAN RESPIRATORY SOC JOURNALS LTD, 2017-09-01)
    UNLABELLED: The Global Lung Function Initiative (GLI) Network has become the largest resource for reference values for routine lung function testing ever assembled. This article addresses how the GLI Network came about, why it is important, and its current challenges and future directions. It is an extension of an article published in Breathe in 2013 [1], and summarises recent developments and the future of the GLI Network. KEY POINTS: The Global Lung Function Initiative (GLI) Network was established as a result of international collaboration, and altruism between researchers, clinicians and industry partners. The ongoing success of the GLI relies on network members continuing to work together to further improve how lung function is reported and interpreted across all age groups around the world.The GLI Network has produced standardised lung function reference values for spirometry and gas transfer tests.GLI reference equations should be adopted immediately for spirometry and gas transfer by clinicians and physiologists worldwide.The recently established GLI data repository will allow ongoing development and evaluation of reference values, and will offer opportunities for novel research. EDUCATIONAL AIMS: To highlight the advances made by the GLI Network during the past 5 years.To highlight the importance of using GLI reference values for routine lung function testing (e.g. spirometry and gas transfer tests).To discuss the challenges that remain for developing and improving reference values for lung function tests.
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    Cardiogenic Airflow in the Lung Revealed Using Synchrotron-Based Dynamic Lung Imaging
    Dubsky, S ; Thurgood, J ; Fouras, A ; Thompson, BR ; Sheard, GJ (NATURE PUBLISHING GROUP, 2018-03-21)
    The beating heart is known to produce pressure and airflow oscillations in the lungs of mammals. This phenomenon is often disregarded as detailed measurement of its effects in the lung have hitherto not been possible. Previous studies have attempted to measure the effect of these oscillations on gas mixing. However, the results have proven inconclusive, due to the lack of a direct measurement tool capable of flow measurement throughout the entire bronchial tree. Here we present the first detailed measurement of cardiogenic oscillations, using synchrotron-based dynamic lung imaging of live mechanically ventilated mice. The results demonstrate large flow oscillations and pendelluft in the airways due to the mechanical action of the beating heart. Using a virtual tracer modelling analysis we show that cardiogenic oscillations produced up to 4 times increased gas mixing, but only in the absence of tidal ventilation. The results highlight the importance of considering this often-disregarded phenomenon when investigating lung function, particularly in situations where tidal ventilation is reduced or absent.
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    Maximal exercise does not increase ventilation heterogeneity in healthy trained adults
    Wrobel, JP ; Ellis, MJ ; Kee, K ; Stuart-Andrews, CR ; Thompson, BR (WILEY, 2016-04)
    The effect of exercise on ventilation heterogeneity has not been investigated. We hypothesized that a maximal exercise bout would increase ventilation heterogeneity. We also hypothesized that increased ventilation heterogeneity would be associated with exercise-induced arterial hypoxemia (EIAH). Healthy trained adult males were prospectively assessed for ventilation heterogeneity using lung clearance index (LCI), Scond, and Sacinat baseline, postexercise and at recovery, using the multiple breath nitrogen washout technique. The maximal exercise bout consisted of a maximal, incremental cardiopulmonary exercise test at 25 watt increments. Eighteen subjects were recruited with mean ± SDage of 35 ± 9 years. There were no significant changes inLCI, Scond, or Sacinfollowing exercise or at recovery. While there was an overall reduction in SpO2with exercise (99.3 ± 1 to 93.7 ± 3%,P < 0.0001), the reduction in SpO2was not associated with changes inLCI, Scondor Sacin Ventilation heterogeneity is not increased following a maximal exercise bout in healthy trained adults. Furthermore,EIAHis not associated with changes in ventilation heterogeneity in healthy trained adults.
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    Ventilation heterogeneity is increased in patients with chronic heart failure
    Kee, K ; Stuart-Andrews, C ; Nilsen, K ; Wrobel, JP ; Thompson, BR ; Naughton, MT (WILEY, 2015-10)
    In the healthy lung, ventilation is distributed heterogeneously due to factors such as anatomical asymmetry and gravity. This ventilation heterogeneity increases pathologically in conditions such as asthma, chronic obstructive lung disease, and cystic fibrosis. In chronic heart failure, lung biopsy demonstrates evidence of peripheral lung fibrosis and small airways narrowing and distortion. We hypothesized that this would lead to increased ventilation heterogeneity. Furthermore, we proposed that rostral fluid shifts when seated patients lie supine would further increase ventilation heterogeneity. We recruited 30 ambulatory chronic heart failure patients (57 ± 10 years, 83% male, left ventricular ejection fraction 31 ± 12%) as well as 10 healthy controls (51 ± 13 years, 90% male). Heart failure patients were clinically euvolemic. Subjects underwent measurement of ventilation heterogeneity using the multiple-breath nitrogen washout technique in the seated position, followed by repeat measurements after 5 and 45 min in the supine position. Ventilation heterogeneity was calculated using the lung clearance index (LCI), Sacin and Scond which represent overall, acinar, and small conducting airway function, respectively. Lung clearance index (9.6 ± 1.2 vs. 8.6 ± 1.4 lung turnovers, P = 0.034) and Scond (0.029 ± 0.014 vs. 0.006 ± 0.016/L, P = 0.007) were higher in the heart failure patients. There was no difference in Sacin (0.197 ± 0.171 vs. 0.125 ± 0.081/L, P = 0.214). Measures of ventilation heterogeneity did not change in the supine position. This study confirms the presence of peripheral airway pathology in patients with chronic heart failure. This leads to subtle but detectable functional abnormalities which do not change after 45 min in the supine position.