76 results on '"Jayasena R"'
Search Results
52. Telehealth Monitoring of Patients in the Community
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Sparks Ross, Celler Branko, Okugami Chris, Jayasena Rajiv, and Varnfield Marlien
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surveillance ,early detection ,false discovery rate ,well-being ,Science ,Electronic computers. Computer science ,QA75.5-76.95 - Abstract
This article outlines a decision support system that seeks to help community nurses monitor the well-being of their chronically ill patients. It is designed for nurses to stay in contact with their patients without spending unnecessary time on less productive aspects of community nursing, such as avoidable driving to and from patients’ houses and taking measurements of vital signs to assess their health condition. It therefore allows the nurse to spend more time on managing the factors that could lead to a healthier patient. The decision support system is developed for two levels of mathematical capability. Nurses with a statistical background are provided with in-depth information allowing them to detect changes in mean, mean square error (and hence variation), and correlations using a variation on dynamic principle components. Less mathematically inclined nurses are offered information about trends, change points, and a simpler multivariate view of a patient’s well-being involving parallel coordinate plots.
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- 2016
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53. Integrating a mobile health setup in a chronic disease management network
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Hang Ding, Ireland D, Jayasena R, Curmi J, and Karunanithi M
54. Oldenzaal Schoolstraat
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Genabeek, R. J. M. van, Waijen, M. C. A. van, Jayasena, R., Hanninen, K., Koop, R, Spitzers, T. A., BAAC BV, and Gemeente Oldenzaal
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Archaeology ,Nieuwe tijd: 1500 - heden (NT) ,Archeologisch: definitief onderzoek (opgraving) ,Archeologisch: aanvullend onderzoek ,Middeleeuwen: 450 - 1500 nC (XME) - Published
- 2010
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55. Factors that influence the uptake of virtual care solutions in Australian primary care practice: a systematic scoping review.
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Delaforce A, Maddock E, Wheeler P, Jayasena R, and Parkinson J
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Introduction: Uptake of virtual care solutions in primary care settings has increased exponentially, and current evidence suggests high patient satisfaction but mixed clinician views., Aims: This paper aimed to identify factors influencing its' implementation to support delivery to the right patient, in the right clinical context, at the right time. Further, this paper evaluates how the updated Consolidated Framework for Implementation Research (CFIR) can be used to assess these factors that contribute to the uptake of virtual care innovations., Methods: This systematic scoping review identified empirical research on factors influencing the uptake of virtual care solutions in the Australian primary care setting. Searches were undertaken in Embase, PubMed, Scopus, and Web of Science. The CFIR was used to code factors influencing the implementation of virtual care solutions. Inductive coding was used to generate new constructs where no appropriate CFIR construct could be identified., Results: Fourteen eligible studies were identified as eligible for inclusion. Five common influencing factors were identified. Three are from the existing CFIR framework, and two are newly developed constructs. CFIR constructs included innovation relative advantage, capability, and IT infrastructure. New constructs included accessibility and suitability. A further six new constructs were identified (trust, privacy, governance, unintended consequences, preference, and choice) but these were not prominently mentioned., Conclusions: Common factors influence virtual care uptake in Australian primary care. The CFIR assisted in conceptualizing these but was not sufficient for capturing factors unique to virtual care. Newly developed constructs are noted to be of importance in the literature, but further research is needed to understand whether they are applicable in multiple contexts., Spanish Abstract: http://links.lww.com/IJEBH/A286., Competing Interests: The authors declare no conflicts of interest, (Copyright © 2024 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the University of Adelaide, JBI.)
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- 2024
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56. Improving Residential Aged Care Placement from Hospital Through the Implementation of a Digital Matching Solution - A Before-After Evaluation.
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Diouf I, Lim WK, Jayasena R, and Khanna S
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- Humans, Victoria, Aged, Patient Discharge, Nursing Homes, Length of Stay, Homes for the Aged
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Patient discharges from hospital to residential aged care facilities (RACFs) are often delayed due to inefficiencies in matching them to suitable available beds. To investigate the improvements that digital solutions can offer here, case-mix adjusted Length of Stay (LOS) of patients discharged to RACFs from a major metropolitan Victorian hospital were compared before and after the introduction of a digital solution for matching patient needs and preferences to available RACFs places. The study found that after the digital solution was implemented, the period where a patient would wait in the hospital for a RACF placement post the Aged Care Assessment Services (ACAS) assessment, the LOS reduced by 26.0% [95% confidence interval (95%CI):8.5%-40.5%]. The corresponding decrease in complete LOS for the After period was 16.5% (95%CI=1.5%-29.4%). This equates to a significant reduction in time spent by vulnerable patients in hospital while potentially freeing up 88,805 (95%CI:28,934- 137,864) patient bed days and delivering a cost saving of $105,993,947 (95%CI:$34,651,867-$165,105,956) if applied to the reported number of hospital patient days used by those eligible and waiting for residential age care nationally across the country in 2021-22.
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- 2024
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57. Innovative Implemented Tools for Outpatient Clinic Scheduling.
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Riahi V, Cooper-Williams L, Khanna S, and Jayasena R
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- Hospitals, Software, Waiting Lists, Algorithms, Ambulatory Care Facilities
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Every year there are approximately three million new specialist clinic appointments at local hospital networks in Victoria. CSIRO, in collaboration with Austin Health, have developed two algorithms to assist with waitlist management in their outpatient specialist clinics. This study describes the implementation of these algorithms in software tools developed to support their use and trial in the clinical setting at Austin Health. We discuss the system design and development of both these software tools. We also review the implemented workflow of the tools and discuss how these tools seek to improve current systems.
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- 2024
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58. A novel, multidomain, primary care nurse-led and mHealth-assisted intervention for dementia risk reduction in middle-aged adults (HAPPI MIND): study protocol for a cluster randomised controlled trial.
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Cross AJ, Geethadevi GM, Magin P, Baker AL, Bonevski B, Godbee K, Ward SA, Mahal A, Versace V, Bell JS, Mc Namara K, O'Reilly SL, Thomas D, Manias E, Anstey KJ, Varnfield M, Jayasena R, Elliott RA, Lee CY, Walker C, van den Bosch D, Tullipan M, Ferreira C, and George J
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- Humans, Middle Aged, Quality of Life, Randomized Controlled Trials as Topic, Risk Reduction Behavior, Victoria, Aged, Dementia prevention & control, Primary Care Nursing, Telemedicine
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Introduction: Middle-aged multidomain risk reduction interventions targeting modifiable risk factors for dementia may delay or prevent a third of dementia cases in later life. We describe the protocol of a cluster randomised controlled trial (cRCT), HAPPI MIND (Holistic Approach in Primary care for PreventIng Memory Impairment aNd Dementia). HAPPI MIND will evaluate the efficacy of a multidomain, nurse-led, mHealth supported intervention for assessing dementia risk and reducing associated risk factors in middle-aged adults in the Australian primary care setting., Methods and Analysis: General practice clinics (n≥26) across Victoria and New South Wales, Australia, will be recruited and randomised. Practice nurses will be trained to implement the HAPPI MIND intervention or a brief intervention. Patients of participating practices aged 45-65 years with ≥2 potential dementia risk factors will be identified and recruited (approximately 15 patients/clinic). Brief intervention participants receive a personalised report outlining their risk factors for dementia based on Australian National University Alzheimer's Disease Risk Index (ANU-ADRI) scores, education booklet and referral to their general practitioner as appropriate. HAPPI MIND participants receive the brief intervention as well as six individualised dementia risk reduction sessions with a nurse trained in motivational interviewing and principles of behaviour change, a personalised risk reduction action plan and access to the purpose-built HAPPI MIND smartphone app for risk factor self-management. Follow-up data collection will occur at 12, 24 and 36 months. Primary outcome is ANU-ADRI score change at 12 months from baseline. Secondary outcomes include change in cognition, quality of life and individual risk factors of dementia., Ethics and Dissemination: Project approved by Monash University Human Research Ethics Committee (ID: 28273). Results will be disseminated in peer-reviewed journals and at healthcare conferences. If effective in reducing dementia risk, the HAPPI MIND intervention could be integrated into primary care, scaled up nationally and sustained over time., Trial Registration Number: ACTRN12621001168842., Competing Interests: Competing interests: AJC is supported by a National Health and Medical Research Council (NHMRC) emerging leadership 1 grant (APP2009633) and has received grant funding from the Medical Research Future Fund (GA187306). All funds were paid to the employing institution. ALB was supported by an NHMRC Fellowship (APP1135901, 2018-2022). VV is funded by the Rural Health Multidisciplinary Training Program. JSB has received grant funding or consulting funds from the National Health and Medical Research Council, Medical Research Future Fund, Victorian Government Department of Health and Human Services, Dementia Australia Research Foundation, Yulgilbar Foundation, Aged Care Quality and Safety Commission, Dementia Centre for Research Collaboration, Pharmaceutical Society of Australia, GlaxoSmithKline Supported Studies Programme, Amgen and several aged care provider organisations unrelated to this work. All grants and consulting funds were paid to the employing institution. DT has received grant funding from GlaxoSmithKline, unrelated to this work and paid to his employer. KJA is funded by ARC Laureate Fellowship (FL19010001). JG has received honoraria from GlaxoSmithKline, AstraZeneca and Pfizer for consultancy and educational/research grants from Boehringer-Ingelheim, GlaxoSmithKline and Pfizer for unrelated projects, all of which have been paid to his employer., (© Author(s) (or their employer(s)) 2023. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
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- 2023
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59. Creating an Implementation Enhancement Plan for a Digital Patient Fall Prevention Platform Using the CFIR-ERIC Approach: A Qualitative Study.
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Delaforce A, Li J, Grujovski M, Parkinson J, Richards P, Fahy M, Good N, and Jayasena R
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- Humans, Qualitative Research, Focus Groups, Accidental Falls, Hospitals
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(1) Background: Inpatient falls are a major cause of hospital-acquired complications (HAC) and inpatient harm. Interventions to prevent falls exist, but it is unclear which are most effective and what implementation strategies best support their use. This study uses existing implementation theory to develop an implementation enhancement plan to improve the uptake of a digital fall prevention workflow. (2) Methods: A qualitative approach using focus groups/interview included 12 participants across four inpatient wards, from a newly built, 300-bed rural referral hospital. Interviews were coded to the Consolidated Framework for Implementation Research (CFIR) and then converted to barrier and enabler statements using consensus agreement. Barriers and enablers were mapped to the Expert Recommendations for Implementing Change (ERIC) tool to develop an implementation enhancement plan. (3) Results: The most prevalent CFIR enablers included: relative advantage ( n = 12), access to knowledge and information ( n = 11), leadership engagement ( n = 9), patient needs and resources ( n = 8), cosmopolitanism ( n = 5), knowledge and beliefs about the intervention ( n = 5), self-efficacy ( n = 5) and formally appointed internal implementation leaders ( n = 5). Commonly mentioned CFIR barriers included: access to knowledge and information ( n = 11), available resources ( n = 8), compatibility ( n = 8), patient needs and resources ( n = 8), design quality and packaging ( n = 10), adaptability ( n = 7) and executing ( n = 7). After mapping the CFIR enablers and barriers to the ERIC tool, six clusters of interventions were revealed: train and educate stakeholders, utilize financial strategies, adapt and tailor to context, engage consumers, use evaluative and iterative strategies and develop stakeholder interrelations. (4) Conclusions: The enablers and barriers identified are similar to those described in the literature. Given there is close agreement between the ERIC consensus framework recommendations and the evidence, this approach will likely assist in enhancing the implementation of Rauland's Concentric Care fall prevention platform and other similar workflow technologies that have the potential to disrupt team and organisational routines. The results of this study will provide a blueprint to enhance implementation that will be tested for effectiveness at a later stage.
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- 2023
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60. Patient Perspectives on Innovative Telemonitoring Enhanced Care Program for Chronic Heart Failure (ITEC-CHF): Usability Study.
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Chen SH, Edwards I, Jayasena R, Ding H, Karunanithi M, Dowling A, Layland J, and Maiorana A
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Background: Telemonitoring enables care providers to remotely support outpatients in self-managing chronic heart failure (CHF), but little is known about the usability and patients' willingness to engage with this technology., Objective: This study aims to evaluate feedback from patients with CHF following participation in the Innovative Telemonitoring Enhanced Care program for CHF (ITEC-CHF) study., Methods: The telemonitoring intervention consisted of three components: remote weight monitoring, structured telephone support, and nurse-led collaborative care. Participants were provided with electronic weighing scales (W550; ForaCare), and a computer tablet (Galaxy Tab A; Samsung). They were asked to weigh themselves on the provided scales daily. Telemonitoring was integrated with a personal assistance call service and a nurse care service according to their workflows in usual care. Feedback on the usability of ITEC-CHF was collected via survey from study participants following 6 months of receiving telemonitoring care for their body weight. Survey responses were provided on a 5-point Likert scale and through open-ended questions to determine participants' perceived benefits and barriers to using ITEC-CHF., Results: A total of 67 participants (49/67, 73% male), with a mean age of 69.8 (SD 12.4) years completed the survey. The majority of participants agreed or strongly agreed that the ITEC-CHF program was easy to use (61/67, 91%), easy to navigate (51/65, 78%), useful (59/65, 91%), and made them feel more confident in managing their weight (57/67, 85%). Themes related to participants' perceptions of telemonitoring included increased support for early intervention of clinical deterioration, improved compliance to daily weighing, a sense of reassurance, and improved self-care and accountability, among others., Conclusions: ITEC-CHF was rated highly on usability and was well accepted by users as part of their routine self-management activities. Participants were willing to use telemonitoring because they perceived a broad spectrum of benefits for CHF management., Trial Registration: Australian New Zealand Clinical Trial Registry ID ACTRN 12614000916640; https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=366691., (©Sheau Huey Chen, Iain Edwards, Rajiv Jayasena, Hang Ding, Mohanraj Karunanithi, Alison Dowling, Jamie Layland, Andrew Maiorana. Originally published in JMIR Cardio (https://cardio.jmir.org), 14.09.2021.)
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- 2021
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61. Home telemonitoring for chronic disease management: Perceptions of users and factors influencing adoption.
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Li J, Varnfield M, Jayasena R, and Celler B
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- Chronic Disease, Health Personnel, Humans, Patient Participation, Perception, Telemedicine
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Home telemonitoring has been used as a solution to support the care of individuals living with chronic disease. While effectiveness of telemonitoring have been widely studied, more research is needed to understand the perceptions among patients and clinicians in incorporating telemonitoring into their daily routine and practices. This paper presents an investigation of patients' and clinicians' experiences in a care augmenting telemonitoring service, their perceived impact delivered through the service, and clinicians' perceptions on how the service was introduced in their organizations. This work was embedded in a large multi-site trial of home telemonitoring using a mixed method approach for evaluation. Interviews with clinicians involved in the study were conducted at multiple time points during the trial. Questionnaires were administered to clinicians and patients at the end of the trial. Results showed that both patients and clinicians recognized the benefits of patient empowerment through telemonitoring, and patient-clinician interactions. Results identified the needs of a dedicated telemonitoring clinical care coordinator role, guidelines that translate telemonitoring services into clinical pathways and engagement of different healthcare providers, especially general practitioners, to support the integration of telemonitoring into chronic disease management programs and long-term organizational strategic plans.
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- 2021
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62. Morphometric Changes to Corneal Dendritic Cells in Individuals With Mild Cognitive Impairment.
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Dehghani C, Frost S, Jayasena R, Fowler C, Masters CL, Kanagasingam Y, Jiao H, Lim JKH, Chinnery HR, and Downie LE
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Purpose: There has been increasing interest in identifying non-invasive, imaging biomarkers for neurodegenerative disorders of the central nervous system (CNS). The aim of this proof-of-concept study was to investigate whether corneal sensory nerve and dendritic cell (DC) parameters, captured using in vivo confocal microscopy (IVCM), are altered in individuals with mild cognitive impairment (MCI) and Alzheimer's disease (AD)., Methods: Fifteen participants were recruited from the Australian Imaging Biomarkers and Lifestyle (AIBL) study in Melbourne, VIC, Australia. The cohort consisted of cognitively normal (CN) individuals ( n = 5), and those with MCI ( n = 5) and AD ( n = 5). Participants underwent a slit lamp examination of the anterior segment, followed by corneal imaging using laser-scanning in vivo confocal microscopy (IVCM) of the central and inferior whorl regions. Corneal DC density, field area, perimeter, circularity index, aspect ratio, and roundness were quantified using Image J. Quantitative data were derived for corneal nerve parameters, including nerve fiber length (CNFL), fiber density (CNFD), branch density (CNBD), and diameter., Results: Corneal DC field area and perimeter were greater in individuals with MCI, relative to CN controls, in both the central and inferior whorl regions ( p < 0.05 for all comparisons). In addition, corneal DCs in the whorl region of MCI eyes had lower circularity and roundness indices and a higher aspect ratio relative to CNs ( p < 0.05 for all comparisons). DC density was similar across participant groups in both corneal regions. There was a trend toward lower quantitative parameters for corneal nerve architecture in the AD and MCI groups compared with CN participants, however, the inter-group differences did not reach statistical significance. Central corneal nerve diameters were similar between groups., Conclusion: This study is the first to report morphological differences in corneal DCs in humans with MCI. These differences were evident in both the central and mid-peripheral cornea, and in the absence of significant nerve abnormalities or a difference in DC density. These findings justify future large-scale studies to assess the utility of corneal IVCM and DC analysis for identifying early stage pathology in neurodegenerative disorders of the CNS., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2020 Dehghani, Frost, Jayasena, Fowler, Masters, Kanagasingam, Jiao, Lim, Chinnery and Downie.)
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- 2020
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63. Effects of Different Telemonitoring Strategies on Chronic Heart Failure Care: Systematic Review and Subgroup Meta-Analysis.
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Ding H, Chen SH, Edwards I, Jayasena R, Doecke J, Layland J, Yang IA, and Maiorana A
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- Chronic Disease, Heart Failure mortality, Humans, Heart Failure therapy, Telemedicine methods
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Background: Telemonitoring studies in chronic heart failure are characterized by mixed mortality and hospitalization outcomes, which have deterred the uptake of telemonitoring in clinical practice. These mixed outcomes may reflect the diverse range of patient management strategies incorporated in telemonitoring. To address this, we compared the effects of different telemonitoring strategies on clinical outcomes., Objective: The aim of this systematic review and subgroup meta-analysis was to identify noninvasive telemonitoring strategies attributing to improvements in all-cause mortality or hospitalization outcomes for patients with chronic heart failure., Methods: We reviewed and analyzed telemonitoring strategies from randomized controlled trials (RCTs) comparing telemonitoring intervention with usual care. For each strategy, we examined whether RCTs that applied the strategy in the telemonitoring intervention (subgroup 1) resulted in a significantly lower risk ratio (RR) of all-cause mortality or incidence rate ratio (IRR) of all-cause hospitalization compared with RCTs that did not apply this strategy (subgroup 2)., Results: We included 26 RCTs (N=11,450) incorporating 18 different telemonitoring strategies. RCTs that provided medication support were found to be associated with a significantly lower IRR value than RCTs that did not provide this type of support (P=.01; subgroup 1 IRR=0.83, 95% CI 0.72-0.95 vs subgroup 2 IRR=1.02, 95% CI 0.93-1.12). RCTs that applied mobile health were associated with a significantly lower IRR (P=.03; IRR=0.79, 95% CI 0.64-0.96 vs IRR=1.00, 95% CI 0.94-1.06) and RR (P=.01; RR=0.67, 95% CI 0.53-0.85 vs RR=0.95, 95% CI 0.84-1.07)., Conclusions: Telemonitoring strategies involving medication support and mobile health were associated with improvements in all-cause mortality or hospitalization outcomes. These strategies should be prioritized in telemonitoring interventions for the management of patients with chronic heart failure., (©Hang Ding, Sheau Huey Chen, Iain Edwards, Rajiv Jayasena, James Doecke, Jamie Layland, Ian A Yang, Andrew Maiorana. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 13.11.2020.)
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- 2020
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64. The Effects of Telemonitoring on Patient Compliance With Self-Management Recommendations and Outcomes of the Innovative Telemonitoring Enhanced Care Program for Chronic Heart Failure: Randomized Controlled Trial.
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Ding H, Jayasena R, Chen SH, Maiorana A, Dowling A, Layland J, Good N, Karunanithi M, and Edwards I
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- Aged, Chronic Disease, Female, Humans, Male, Self-Management, Treatment Outcome, Heart Failure therapy, Patient Compliance statistics & numerical data, Remote Consultation methods, Telemedicine methods
- Abstract
Background: Telemonitoring enables care providers to remotely support outpatients in self-managing chronic heart failure (CHF), but the objective assessment of patient compliance with self-management recommendations has seldom been studied., Objective: This study aimed to evaluate patient compliance with self-management recommendations of an innovative telemonitoring enhanced care program for CHF (ITEC-CHF)., Methods: We conducted a multicenter randomized controlled trial with a 6-month follow-up. The ITEC-CHF program comprised the provision of Bluetooth-enabled scales linked to a call center and nurse care services to assist participants with weight monitoring compliance. Compliance was defined a priori as weighing at least 4 days per week, analyzed objectively from weight recordings on the scales. The intention-to-treat principle was used to perform the analysis., Results: A total of 184 participants (141/184, 76.6% male), with a mean age of 70.1 (SD 12.3) years, were randomized to receive either ITEC-CHF (n=91) or usual care (control; n=93), of which 67 ITEC-CHF and 81 control participants completed the intervention. For the compliance criterion of weighing at least 4 days per week, the proportion of compliant participants in the ITEC-CHF group was not significantly higher than that in the control group (ITEC-CHF: 67/91, 74% vs control: 56/91, 60%; P=.06). However, the proportion of ITEC-CHF participants achieving the stricter compliance standard of at least 6 days a week was significantly higher than that in the control group (ITEC-CHF: 41/91, 45% vs control: 23/93, 25%; P=.005)., Conclusions: ITEC-CHF improved participant compliance with weight monitoring, although the withdrawal rate was high. Telemonitoring is a promising method for supporting both patients and clinicians in the management of CHF. However, further refinements are required to optimize this model of care., Trial Registration: Australian New Zealand Clinical Trial Registry ACTRN12614000916640; https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=366691., (©Hang Ding, Rajiv Jayasena, Sheau Huey Chen, Andrew Maiorana, Alison Dowling, Jamie Layland, Norm Good, Mohanraj Karunanithi, Iain Edwards. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 08.07.2020.)
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- 2020
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65. Before-after evaluation of patient length of stay in a rehabilitation context following implementation of an electronic patient journey board.
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Rolls D, Khanna S, Lloyd N, Reeson A, Jayasena R, McCormick C, and Hakkennes S
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- Adult, Aged, Female, Humans, Information Systems statistics & numerical data, Male, Middle Aged, Retrospective Studies, Victoria, Data Display statistics & numerical data, Electronic Health Records statistics & numerical data, Health Plan Implementation, Hospitalization statistics & numerical data, Length of Stay statistics & numerical data, Rehabilitation Centers statistics & numerical data
- Abstract
Purpose: To investigate whether the installation of electronic patient journey boards in an inpatient adult rehabilitation centre in Victoria, Australia, is associated with shorter lengths of stay for admitted adult rehabilitation patients., Methods: A retrospective before-after analysis of 3 259 adult inpatient rehabilitation episodes from 2013 to 2018 was performed, analysing case-mix adjusted lengths of stay., Results: A reduction in case-mix adjusted length of stay of 4.1 days per episode (95 % confidence interval: 2.0-6.4 days) was found. The corresponding reduction in hospital costs was estimated to be $3 738 per episode (95 % confidence interval $2 398-$4 983)., Conclusions: Installation of electronic patient journey boards was associated with shorter lengths of stay in an inpatient adult rehabilitation centre. Additional research is needed to 1) provide further evidence of the causal effect of the boards on length of stay, and 2) investigate the mechanisms by which they reduce lengths of stay (e.g., increased currency of information, changes to procedures, remote viewing) in rehabilitation settings., (Copyright © 2019 The Authors. Published by Elsevier B.V. All rights reserved.)
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- 2020
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66. A risk stratification tool for hospitalisation in Australia using primary care data.
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Khanna S, Rolls DA, Boyle J, Xie Y, Jayasena R, Hibbert M, and Georgeff M
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- Algorithms, Australia epidemiology, General Practice statistics & numerical data, Humans, Patients, Hospitalization statistics & numerical data, Multiple Chronic Conditions epidemiology, Risk Assessment statistics & numerical data, Risk Factors
- Abstract
Predictive risk models using general practice (GP) data to predict the risk of hospitalisation have the potential to identify patients for targeted care. Effective use can help deliver significant reductions in the incidence of hospitalisation, particularly for patients with chronic conditions, the highest consumers of hospital resources. There are currently no published validated risk models for the Australian context using GP data to predict hospitalisation. In addition, published models for other contexts typically rely on a patient's history of prior hospitalisations, a field not commonly available in GP information systems, as a predictor. We present a predictive risk model developed for use by GPs to assist in targeting coordinated healthcare to patients most in need. The algorithm was developed and validated using a retrospective primary care cohort, linked to records of hospitalisation in Victoria, Australia, to predict the risk of hospitalisation within one year. Predictors employed include demographics, prescription history, pathology results and disease diagnoses. Prior hospitalisation information was not employed as a predictor. Our model shows good performance and has been implemented within primary care practices participating in Health Care Homes, an Australian Government initiative being trialled for providing ongoing comprehensive care for patients with chronic and complex conditions.
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- 2019
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67. Ocular Biomarkers of Alzheimer's Disease: The Role of Anterior Eye and Potential Future Directions.
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Dehghani C, Frost S, Jayasena R, Masters CL, and Kanagasingam Y
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- Animals, Aqueous Humor metabolism, Cornea metabolism, Humans, Lens, Crystalline metabolism, Alzheimer Disease diagnosis, Alzheimer Disease metabolism, Amyloid beta-Peptides metabolism, Anterior Eye Segment metabolism, Biomarkers metabolism
- Abstract
Globally, Alzheimer's disease (AD) is a growing health and economic challenge that has no effective cure. Recent clinical trials indicate that preclinical treatment may be required but a routine screening tool for AD has been elusive. Hence, a simple, yet sensitive biomarker for preclinical AD, when the disease is most likely to be amenable to treatment, is lacking. Due to several features, the eye has been explored for this purpose and, among the ocular tissues, the retina has received the most attention. Currently, major works investigating the potential AD diagnosis by detecting amyloid-β (Aβ) signatures in the retinal tissue are underway, while the anterior eye is more accessible for in vivo imaging and examination. This report provides a concise review of current literature on the anterior eye components, including the crystalline lens, cornea, and aqueous humor, in AD. We also discuss the potential for assessment of the corneal nerve structure and regeneration as well as conjunctival tissue for AD-related alterations. The crystalline lens has received considerable attention, but further research is required to confirm whether Aβ accumulates in the lens and whether it mirrors brain neuropathologic changes, particularly in preclinical AD. The rich corneal neural network and conjunctival vasculature also merit exploration in future studies to shed light on their potential association with AD pathologic changes.
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- 2018
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68. Patient Adherence to Scheduled Vital Sign Measurements During Home Telemonitoring: Analysis of the Intervention Arm in a Before and After Trial.
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Celler B, Argha A, Varnfield M, and Jayasena R
- Abstract
Background: In a home telemonitoring trial, patient adherence with scheduled vital signs measurements is an important aspect that has not been thoroughly studied and for which data in the literature are limited. Levels of adherence have been reported as varying from approximately 40% to 90%, and in most cases, the adherence rate usually dropped off steadily over time. This drop is more evident in the first few weeks or months after the start. Higher adherence rates have been reported for simple types of monitoring and for shorter periods of intervention. If patients do not follow the intended procedure, poorer results than expected may be achieved. Hence, analyzing factors that can influence patient adherence is of great importance., Objective: The goal of the research was to present findings on patient adherence with scheduled vital signs measurements in the recently completed Commonwealth Scientific and Industrial Research Organisation (CSIRO) national trial of home telemonitoring of patients (mean age 70.5 years, SD 9.3 years) with chronic conditions (chronic obstructive pulmonary disease, coronary artery disease, hypertensive diseases, congestive heart failure, diabetes, or asthma) carried out at 5 locations along the east coast of Australia. We investigated the ability of chronically ill patients to carry out a daily schedule of vital signs measurements as part of a chronic disease management care plan over periods exceeding 6 months (302 days, SD 135 days) and explored different levels of adherence for different measurements as a function of age, gender, and supervisory models., Methods: In this study, 113 patients forming the test arm of a Before and After Control Intervention (BACI) home telemonitoring trial were analyzed. Patients were required to monitor on a daily basis a range of vital signs determined by their chronic condition and comorbidities. Vital signs included noninvasive blood pressure, pulse oximetry, spirometry, electrocardiogram (ECG), blood glucose level, body temperature, and body weight. Adherence was calculated as the number of days during which at least 1 measurement was taken over all days where measurements were scheduled. Different levels of adherence for different measurements, as a function of age, gender, and supervisory models, were analyzed using linear regression and analysis of covariance for a period of 1 year after the intervention., Results: Patients were monitored on average for 302 (SD 135) days, although some continued beyond 12 months. The overall adherence rate for all measurements was 64.1% (range 59.4% to 68.8%). The adherence rates of patients monitored in hospital settings relative to those monitored in community settings were significantly higher for spirometry (69.3%, range 60.4% to 78.2%, versus 41.0%, range 33.1% to 49.0%, P<.001), body weight (64.5%, range 55.7% to 73.2%, versus 40.5%, range 32.3% to 48.7%, P<.001), and body temperature (66.8%, range 59.7% to 73.9%, versus 55.2%, range 48.4% to 61.9%, P=.03). Adherence with blood glucose measurements (58.1%, range 46.7% to 69.5%, versus 50.2%, range 42.8% to 57.6%, P=.24) was not significantly different overall. Adherence rates for blood pressure (68.5%, range 62.7% to 74.2%, versus 59.7%, range 52.1% to 67.3%, P=.04), ECG (65.6%, range 59.7% to 71.5%, versus 56.5%, range 48.7% to 64.4%, P=.047), and pulse oximetry (67.0%, range 61.4% to 72.7%, versus 56.4%, range 48.6% to 64.1%, P=.02) were significantly higher in males relative to female subjects. No statistical differences were observed between rates of adherence for the younger patient group (70 years and younger) and older patient group (older than 70 years)., Conclusions: Patients with chronic conditions enrolled in the home telemonitoring trial were able to record their vital signs at home at least once every 2 days over prolonged periods of time. Male patients maintained a higher adherence than female patients over time, and patients supervised by hospital-based care coordinators reported higher levels of adherence with their measurement schedule relative to patients supervised in community settings. This was most noticeable for spirometry., Trial Registration: Australian New Zealand Clinical Trials Registry ACTRN12613000635763; https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=364030&isReview=true (Archived by WebCite at http://www.webcitation.org/6xPOU3DpR)., (©Branko Celler, Ahmadreza Argha, Marlien Varnfield, Rajiv Jayasena. Originally published in JMIR Medical Informatics (http://medinform.jmir.org), 09.04.2018.)
- Published
- 2018
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69. What Have We Learned from the CSIRO National NBN Telehealth Trial?
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Celler B, Varnfield M, and Jayasena R
- Subjects
- Hospitalization, Humans, Monitoring, Physiologic, Surveys and Questionnaires, Chronic Disease, Telemedicine
- Abstract
The CSIRO National NBN Telehealth Trial investigated the effects of introducing at home telemonitoring of vital signs for the management of a heterogeneous group of chronically ill patients. Patients suffering from a wide range of chronic conditions who were frequently admitted to hospital, were selected from nominated hospital lists. The impact of telemonitoring was analysed using a wide range of health and wellbeing outcomes as well as numerous health economic metrics derived from Medicare Medical Benefits Scheme (MBS) and Pharmaceutical Benefits Scheme (PBS) data and Hospital Health Roundtable data. Data was also recorded from the telemonitoring system used in the trial, and the administration of questionnaires. The impact of this intervention on the patients, carers and clinicians involved in their care was quantitatively and qualitatively analysed and documented. There were no significant differences between test and control patients at baseline. Test patients were monitored for an average of 276 days with 75% of patients monitored for more than 6 months. Test patients 1 year after the start of their intervention showed a 46.3% reduction in rate of predicted medical expenditure, a 25.5% reduction in the rate of predicted pharmaceutical expenditure, a 53.2% reduction in the rate of predicted unscheduled admission to hospital, a 67.9% reduction in the predicted rate of LOS when admitted to hospital, and a reduction in mortality of between 41.3% and 44.5% relative to control patients. Control patients did not demonstrate any significant change in their predicted trajectory for any of the above variables. In addition, this project reports on the effect of workplace culture and capacity for innovation and organizational change management in successfully integrating a new model of care with long established service models.
- Published
- 2018
70. Innovative Telemonitoring Enhanced Care Programme for Chronic Heart Failure (ITEC-CHF) to improve guideline compliance and collaborative care: protocol of a multicentre randomised controlled trial.
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Ding H, Jayasena R, Maiorana A, Dowling A, Chen SH, Karunanithi M, Layland J, and Edwards I
- Subjects
- Chronic Disease therapy, Clinical Protocols, Humans, Quality of Life, Risk Factors, Telephone, Guideline Adherence, Heart Failure therapy, Patient Compliance, Self Care methods, Telemedicine methods
- Abstract
Introduction: Chronic heart failure (CHF) is a life-threatening chronic disease characterised by periodic exacerbations and recurrent hospitalisations. In the management of CHF, patient compliance with evidence-based clinical guidelines is essential, but remains difficult practically. The objective of this study is to examine whether an Innovative Telemonitoring Enhanced Care Programme for CHF (ITEC-CHF) improves patients' compliance, and associated health and economic outcomes., Methods and Analysis: An open multicentre randomised controlled trial has been designed. Patients will be recruited and randomised to receive either ITEC-CHF (n=150) or usual care CHF (n=150) for at least 6 months. ITEC-CHF combines usual care and an additional telemonitoring service including remote weight monitoring, structured telephone support and nurse-led collaborative care. The primary outcomes are the compliance rates with the best-practice guidelines for daily weight monitoring. The secondary outcomes include the compliance with other guideline recommendations (health maintenance, medication, diet and exercise), health (health-related quality of life, risk factors, functional capacity and psychological states) and economic outcomes related to the use of healthcare resources such as hospital readmissions and general practitioner/emergency department visits., Ethics and Dissemination: The clinical trial has been approved by Peninsula Health Human Research Ethics Committee (HREC Reference: HREC/14/PH/27), Royal Perth Hospital Human Research Ethics Committee (Reference: 15-081) and the Curtin University Human Research Ethics Committee (Reference: HR 181/2014). We will disseminate the final results to the public via conferences and journal publications. A final study report will also be provided to the ethics committees., Trial Registration Number: Registered with Australian New Zealand Clinical Trial Registry (ACTRN12614000916640)., Competing Interests: Competing interests: None declared., (© Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2017. All rights reserved. No commercial use is permitted unless otherwise expressly granted.)
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- 2017
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71. Impact of At-Home Telemonitoring on Health Services Expenditure and Hospital Admissions in Patients With Chronic Conditions: Before and After Control Intervention Analysis.
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Celler B, Varnfield M, Nepal S, Sparks R, Li J, and Jayasena R
- Abstract
Background: Telemonitoring is becoming increasingly important for the management of patients with chronic conditions, especially in countries with large distances such as Australia. However, despite large national investments in health information technology, little policy work has been undertaken in Australia in deploying telehealth in the home as a solution to the increasing demands and costs of managing chronic disease., Objective: The objective of this trial was to evaluate the impact of introducing at-home telemonitoring to patients living with chronic conditions on health care expenditure, number of admissions to hospital, and length of stay (LOS)., Methods: A before and after control intervention analysis model was adopted whereby at each location patients were selected from a list of eligible patients living with a range of chronic conditions. Each test patient was case matched with at least one control patient. Test patients were supplied with a telehealth vital signs monitor and were remotely managed by a trained clinical care coordinator, while control patients continued to receive usual care. A total of 100 test patients and 137 control patients were analyzed. Primary health care benefits provided to Australian patients were investigated for the trial cohort. Time series data were analyzed using linear regression and analysis of covariance for a period of 3 years before the intervention and 1 year after., Results: There were no significant differences between test and control patients at baseline. Test patients were monitored for an average of 276 days with 75% of patients monitored for more than 6 months. Test patients 1 year after the start of their intervention showed a 46.3% reduction in rate of predicted medical expenditure, a 25.5% reduction in the rate of predicted pharmaceutical expenditure, a 53.2% reduction in the rate of predicted unscheduled admission to hospital, a 67.9% reduction in the predicted rate of LOS when admitted to hospital, and a reduction in mortality of between 41.3% and 44.5% relative to control patients. Control patients did not demonstrate any significant change in their predicted trajectory for any of the above variables., Conclusions: At-home telemonitoring of chronically ill patients showed a statistically robust positive impact increasing over time on health care expenditure, number of admissions to hospital, and LOS as well as a reduction in mortality., Trial Registration: Retrospectively registered with the Australian and New Zealand Clinical Trial Registry ACTRN12613000635763; https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=364030 (Archived by WebCite at http://www.webcitation.org/6sxqjkJHW)., (©Branko Celler, Marlien Varnfield, Surya Nepal, Ross Sparks, Jane Li, Rajiv Jayasena. Originally published in JMIR Medical Informatics (http://medinform.jmir.org), 08.09.2017.)
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- 2017
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72. Breast Cancer Chemoprevention among High-risk Women and those with Ductal Carcinoma In Situ.
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Reimers LL, Sivasubramanian PS, Hershman D, Terry MB, Greenlee H, Campbell J, Kalinsky K, Maurer M, Jayasena R, Sandoval R, Alvarez M, and Crew KD
- Subjects
- Adult, Breast Neoplasms pathology, Female, Humans, Middle Aged, Patient Participation, Raloxifene Hydrochloride therapeutic use, Risk Assessment, Selective Estrogen Receptor Modulators therapeutic use, Tamoxifen therapeutic use, Anticarcinogenic Agents therapeutic use, Aromatase Inhibitors therapeutic use, Breast Neoplasms prevention & control, Chemoprevention methods, Risk Reduction Behavior
- Abstract
Chemoprevention with the anti-estrogens, tamoxifen, raloxifene, and aromatase inhibitors, reduce breast cancer incidence in high-risk women; however, uptake has been poor (<5%) in the prevention setting. We assessed use of anti-estrogens for breast cancer prevention, among high-risk women seen at an academic breast center, to observe how uptake rates compare in this setting. We collected data on demographics, breast cancer risk factors, and health behaviors via self-administered questionnaires and medical chart abstraction. Women eligible for chemoprevention with anti-estrogens had a 5-year predicted breast cancer risk according to the Gail model of ≥1.67%, history of lobular or ductal carcinoma in situ (LCIS/DCIS), and/or BRCA mutation. We dichotomized anti-estrogen use as ever or never. Predictors of use were evaluated using multivariable log-binomial regression. Of 412 high-risk women enrolled, 316 (77%) were eligible for chemoprevention. Among eligible women, 55% were non-Hispanic white, 29% Hispanic, 8% non-Hispanic black, and 7% Asian. Women were grouped based upon their highest category of breast cancer risk (in descending order): BRCA mutation carriers (3%), DCIS (40%), LCIS (22%), and 5-year Gail risk ≥1.67% (36%). Among those eligible for chemoprevention, 162 (51%) had ever initiated anti-estrogen therapy (71% tamoxifen, 23% raloxifene, 5% aromatase inhibitor). Anti-estrogen use was highest among women with DCIS (73%). In multivariable analysis, women with a 5-year Gail risk ≥1.67% had approximately a 20% lower likelihood of anti-estrogen use compared to women with DCIS (p = 0.01). In the primary prevention setting, excluding women diagnosed with DCIS, anti-estrogen use was 37%. Multivariable analysis showed differences in uptake by education and potentially by race/ethnicity. Among high-risk women seen at a breast center, anti-estrogen use for chemoprevention was relatively high as compared to the published literature. Clinicians can support high-risk women by effectively communicating breast cancer risk and enhancing knowledge about the risks and benefits of chemoprevention., (© 2015 Wiley Periodicals, Inc.)
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- 2015
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73. Design of a multi-site multi-state clinical trial of home monitoring of chronic disease in the community in Australia.
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Celler BG, Sparks R, Nepal S, Alem L, Varnfield M, Li J, Jang-Jaccard J, McBride SJ, and Jayasena R
- Subjects
- Adult, Aged, Australia, Computer Security, Confidentiality, Cost-Benefit Analysis, Female, Humans, Male, Middle Aged, New Zealand, Patient Satisfaction, Surveys and Questionnaires, Telemedicine economics, Chronic Disease therapy, Disease Management, Research Design, Telemedicine organization & administration
- Abstract
Background: Telehealth services based on at-home monitoring of vital signs and the administration of clinical questionnaires are being increasingly used to manage chronic disease in the community, but few statistically robust studies are available in Australia to evaluate a wide range of health and socio-economic outcomes. The objectives of this study are to use robust statistical methods to research the impact of at home telemonitoring on health care outcomes, acceptability of telemonitoring to patients, carers and clinicians and to identify workplace cultural factors and capacity for organisational change management that will impact on large scale national deployment of telehealth services. Additionally, to develop advanced modelling and data analytics tools to risk stratify patients on a daily basis to automatically identify exacerbations of their chronic conditions., Methods/design: A clinical trial is proposed at five locations in five states and territories along the Eastern Seaboard of Australia. Each site will have 25 Test patients and 50 case matched control patients. All participants will be selected based on clinical criteria of at least two hospitalisations in the previous year or four or more admissions over the last five years for a range of one or more chronic conditions. Control patients are matched according to age, sex, major diagnosis and their Socio-Economic Indexes for Areas (SEIFA). The Trial Design is an Intervention control study based on the Before-After-Control-Impact (BACI) design., Discussion: Our preliminary data indicates that most outcome variables before and after the intervention are not stationary, and accordingly we model this behaviour using linear mixed-effects (lme) models which can flexibly model within-group correlation often present in longitudinal data with repeated measures. We expect reduced incidence of unscheduled hospitalisation as well as improvement in the management of chronically ill patients, leading to better and more cost effective care. Advanced data analytics together with clinical decision support will allow telehealth to be deployed in very large numbers nationally without placing an excessive workload on the monitoring facility or the patient's own clinicians., Trial Registration: Registered with Australian New Zealand Clinical Trial Registry on 1st April 2013. Trial ID: ACTRN12613000635763.
- Published
- 2014
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74. Randomized controlled trial of a clinic-based survivorship intervention following adjuvant therapy in breast cancer survivors.
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Hershman DL, Greenlee H, Awad D, Kalinsky K, Maurer M, Kranwinkel G, Brafman L, Jayasena R, Tsai WY, Neugut AI, and Crew KD
- Subjects
- Breast Neoplasms ethnology, Chemotherapy, Adjuvant, Female, Hispanic or Latino, Humans, Middle Aged, Patient Satisfaction, Regression Analysis, Surveys and Questionnaires, Breast Neoplasms psychology, Breast Neoplasms therapy, Quality of Life, Survivors psychology
- Abstract
In 2006, the IOM released a report citing the importance of "survivorship plans" to improve quality of life and care coordination for cancer survivors, but little has been done to evaluate their efficacy. Women with early-stage breast cancer were randomized within 6 weeks of completing adjuvant therapy to a survivorship intervention group (SI) or control group (CG). All subjects were given the NCI publication, "Facing Forward: Life after Cancer Treatment." The SI also met with a nurse/nutritionist to receive a treatment summary, surveillance, and lifestyle recommendations. Both groups completed questionnaires on the impact of cancer (IOC), patient satisfaction (FACIT-TS-PS), and assessment of survivor concerns (ASC) at baseline, 3 and 6 months. Within and between group t tests and linear regression analyses were performed. Among 126 women (60 CG, 66 SI), mean age was 54 years, 48 % were Hispanic, and the groups were well-balanced by baseline characteristics. No significant differences between the CG and SI on the FACIT-TS-PS or IOC at 3 and 6 months were seen. The ASC health worry subscale was lower (less worry) in the SI compared to CG (p = 0.02). At all time-points, Hispanic women had higher (worse) health worry (p = 0.0008), social-life interference (p = 0.009), and meaning of cancer scales (p = 0.0004), and more trust in medical professionals (p = 0.03) compared to non-Hispanic women. While the SI did not lead to significant improvements in most patient-reported outcomes, it was associated with decreased health worry. Future interventions should determine the most efficient and effective method for delivering survivorship care plans.
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- 2013
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75. Integrating a mobile health setup in a chronic disease management network.
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Ding H, Ireland D, Jayasena R, Curmi J, and Karunanithi M
- Subjects
- Cell Phone, Health Priorities, Humans, Internet, Wireless Technology, Chronic Disease therapy, Disease Management, Mobile Health Units, Primary Health Care, Self Care
- Abstract
Supporting self management of chronic disease in collaboration with primary healthcare has been a national priority in order to mitigate the emerging disease burden on the already strained healthcare system. However, in practice, the uptake of self-management programs and compliance with clinical guidelines remain poor. Time constraints due to work commitments and lack of efficient monitoring tools have been the major barrier to the uptake and compliance. In this paper, we present a newly integrated mobile health system with a clinical chronic disease management network called cdmNet, which has already been validated to facilitate General Practitioners (GPs) to provide collaborative disease management services. The newly integrated solution takes advantage of the latest mobile web and wireless Bluetooth communication techniques to enable patients to record health data entries through ubiquitous mobile phones, and allows the data to be simultaneously shared by multidisciplinary care teams. This integration would enable patients to self-manage their chronic disease conditions in collaboration with GPs and hence, improve the uptake and compliance. Additionally, the proposed integration will provide a useful framework encouraging the translation of innovative mobile health technologies into highly regulated healthcare systems.
- Published
- 2013
76. The first isolation of Helicobacter pylori from gastric biopsy specimens in Sri Lanka.
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Chandrasiri P, Wickramasinghe RS, Fernando D, and Jayasena R
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- Aged, Aged, 80 and over, Biopsy, Needle, Gastroscopy, Helicobacter Infections microbiology, Humans, Male, Sri Lanka, Stomach microbiology, Stomach Ulcer microbiology, Helicobacter Infections diagnosis, Helicobacter pylori isolation & purification, Stomach pathology, Stomach Ulcer diagnosis
- Published
- 1998
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