87 results on '"Symons, K."'
Search Results
2. Patient and Health Professional Perspectives on Telehealth in the Management of Interstitial Lung Disease
- Author
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Deshpande, S., primary, Tikellis, G., additional, Barnes, H., additional, Symons, K., additional, Holland, A.E., additional, Glaspole, I., additional, and Khor, Y.H., additional
- Published
- 2024
- Full Text
- View/download PDF
3. Cyberpesten bij jongeren: Maken ouders een verschil?
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Symons, K., Ponnet, K., Walrave, M., and Heirman, W.
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- 2018
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- View/download PDF
4. Usability of a Smartphone Application for Patients With Interstitial Lung Disease (ILD): Early Results From the Registry for Better Understanding of ILD (RE-BUILD) Pilot Study
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Glenn, L.M., primary, Jackson, D., additional, Fuhrmeister, L., additional, Symons, K., additional, Turnour, L., additional, Tefay, B., additional, Holland, A.E., additional, Goh, N., additional, Troy, L.K., additional, Brooke, M., additional, Glaspole, I., additional, and Corte, T.J., additional
- Published
- 2023
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5. Matrix metalloproteinase-7 is increased in lung bases but not apices in idiopathic pulmonary fibrosis.
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Jaffar, J, Wong, M, Fishbein, GA, Alhamdoosh, M, McMillan, L, Gamell-Fulla, C, Ng, M, Wilson, N, Symons, K, Glaspole, I, Westall, G, Jaffar, J, Wong, M, Fishbein, GA, Alhamdoosh, M, McMillan, L, Gamell-Fulla, C, Ng, M, Wilson, N, Symons, K, Glaspole, I, and Westall, G
- Abstract
INTRODUCTION: Idiopathic pulmonary fibrosis (IPF) is a progressively fibrotic lung condition with poor prognosis. Matrix metalloproteinase-7 (MMP7) is a protein secreted by epithelial cells in IPF lungs. It is not known if MMP7 expression correlates with fibrotic changes in lung tissue. METHODS: Tissue samples from lung apices and bases were obtained from 20 IPF patients and 14 non-diseased control (NDC) donors. In formalin-fixed paraffin-embedded sections, histological assessment of fibrosis was performed; overall MMP7 positivity was assessed by immunohistochemistry and MMP7+ cells were quantified using multiplex immunohistochemistry. Protein expression of MMP7 in whole lung lysates was quantified by Western blotting. Bulk tissue transcriptomic profiles of 101 samples were analysed using RNA sequencing technologies. RESULTS: Lung tissue from IPF bases was more fibrotic than in apices. MMP7 protein is elevated in IPF lung base tissue. In IPF whole lung lysates, MMP7 protein levels are increased compared to NDC donors and was increased in IPF lung bases compared to apices. MMP7 protein levels correlated with MMP7 gene expression levels in lung tissue. MMP7 transcript levels were increased in IPF base compared to NDC base lung tissue and increased in IPF base tissue compared to IPF apex tissue. CONCLUSIONS: Our cross-sectional study suggests that lung epithelial MMP7 expression increases as the tissue becomes more fibrotic and identifies a potentially nonepithelial or immune-cell source. Mechanisms of disease progression in IPF are still unclear, and our study suggests aberrant MMP7 production may be a histological starting point of lung tissue fibrosis.
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- 2022
6. John Marshall Davis
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Symons, K W
- Published
- 2006
7. John Harry Howard Glyn
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Symons, K. W.
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- 2006
8. Diagnosis and management of connective tissue disease-associated interstitial lung disease in Australia and New Zealand: A position statement from the Thoracic Society of Australia and New Zealand*
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Jee, AS, Sheehy, R, Hopkins, P, Corte, TJ, Grainge, C, Troy, LK, Symons, K, Spencer, LM, Reynolds, PN, Chapman, S, de Boer, S, Reddy, T, Holland, AE, Chambers, DC, Glaspole, IN, Jo, HE, Bleasel, JF, Wrobel, JP, Dowman, L, Parker, MJS, Wilsher, ML, Goh, NSL, Moodley, Y, Keir, GJ, Jee, AS, Sheehy, R, Hopkins, P, Corte, TJ, Grainge, C, Troy, LK, Symons, K, Spencer, LM, Reynolds, PN, Chapman, S, de Boer, S, Reddy, T, Holland, AE, Chambers, DC, Glaspole, IN, Jo, HE, Bleasel, JF, Wrobel, JP, Dowman, L, Parker, MJS, Wilsher, ML, Goh, NSL, Moodley, Y, and Keir, GJ
- Abstract
Pulmonary complications in CTD are common and can involve the interstitium, airways, pleura and pulmonary vasculature. ILD can occur in all CTD (CTD-ILD), and may vary from limited, non-progressive lung involvement, to fulminant, life-threatening disease. Given the potential for major adverse outcomes in CTD-ILD, accurate diagnosis, assessment and careful consideration of therapeutic intervention are a priority. Limited data are available to guide management decisions in CTD-ILD. Autoimmune-mediated pulmonary inflammation is considered a key pathobiological pathway in these disorders, and immunosuppressive therapy is generally regarded the cornerstone of treatment for severe and/or progressive CTD-ILD. However, the natural history of CTD-ILD in individual patients can be difficult to predict, and deciding who to treat, when and with what agent can be challenging. Establishing realistic therapeutic goals from both the patient and clinician perspective requires considerable expertise. The document aims to provide a framework for clinicians to aid in the assessment and management of ILD in the major CTD. A suggested approach to diagnosis and monitoring of CTD-ILD and, where available, evidence-based, disease-specific approaches to treatment have been provided.
- Published
- 2021
9. Infection rate and colonization with antibiotic-resistant organisms in skilled nursing facility residents with indwelling devices
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Wang, L., Lansing, B., Symons, K., Flannery, E. L., Fisch, J., Cherian, K., McNamara, S. E., and Mody, L.
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- 2012
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10. Ennis Giordani
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Symons, K. W.
- Published
- 1996
11. John (Hanus) Morgan
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Symons, K. W.
- Published
- 1996
12. Screening and treating pre‐operative anaemia and suboptimal iron stores in elective colorectal surgery: a cost effectiveness analysis
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Trentino, K. M., primary, Mace, H. S., additional, Symons, K., additional, Sanfilippo, F. M., additional, Leahy, M. F., additional, Farmer, S. L., additional, Hofmann, A., additional, Watts, R. D., additional, Wallace, M. H., additional, and Murray, K., additional
- Published
- 2020
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13. Matrix Metalloproteinases Are Increased in Lung Bases Compared to Apices in Patients with Idiopathic Pulmonary Fibrosis (IPF)
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Jaffar, J., primary, McMillan, L., additional, Turkovic, L., additional, Alhamdoosh, M., additional, Gamell Fulla, C., additional, Wilson, N., additional, Lönnstedt, I., additional, Ng, M., additional, Symons, K., additional, Glaspole, I., additional, Westall, G., additional, and Wong, M., additional
- Published
- 2020
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14. New colonization with multiple drug resistant organisms (MDROs) in long-term care facilities(LTCF): Quinolone resistance leads the way.: P28
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Mody, L., Fisch, J., Symons, K., Wang, L., and Lansing, B.
- Published
- 2010
15. The voice of the child in international child abductions in Europe : Work stream one: survey results
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Symons, K., Ponnet, Koen, and De Marez, L.
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Mass communications ,Psychology - Published
- 2019
16. Fibroblasts from Lung Apices and Bases of Patients with Idiopathic Pulmonary Fibrosis Respond Differently to Pirfenidone and TGF-Beta 1
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Jaffar, J., primary, Glaspole, I., additional, Symons, K., additional, and Westall, G., additional
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- 2019
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17. Blood Monocyte Count as a Prognostic Marker in Idiopathic Pulmonary Fibrosis: An Australian IPF Registry Analysis
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Teoh, A., primary, Jo, H., additional, Symons, K., additional, Ray, E., additional, Glaspole, I., additional, Goh, N., additional, Grainge, C., additional, Hopkins, P., additional, Zappala, C.J., additional, Gregory, K., additional, Cooper, W., additional, Mahar, A., additional, Walters, H., additional, Reynolds, P.N., additional, Chapman, S., additional, Ellis, S., additional, Moodley, Y.I., additional, Sacha, M., additional, and Corte, T.J., additional
- Published
- 2019
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18. Screening and treating pre‐operative anaemia and suboptimal iron stores in elective colorectal surgery: a cost effectiveness analysis.
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Trentino, K. M., Mace, H. S., Symons, K., Sanfilippo, F. M., Leahy, M. F., Farmer, S. L., Hofmann, A., Watts, R. D., Wallace, M. H., and Murray, K.
- Subjects
COST effectiveness ,COST analysis ,PROCTOLOGY ,ELECTIVE surgery ,ANEMIA ,RED blood cell transfusion - Abstract
Summary: Our study investigated whether pre‐operative screening and treatment for anaemia and suboptimal iron stores in a patient blood management clinic is cost effective. We used outcome data from a retrospective cohort study comparing colorectal surgery patients admitted pre‐ and post‐implementation of a pre‐operative screening programme. We applied propensity score weighting techniques with multivariable regression models to adjust for differences in baseline characteristics between groups. Episode‐level hospitalisation costs were sourced from the health service clinical costing data system; the economic evaluation was conducted from a Western Australia Health System perspective. The primary outcome measure was the incremental cost per unit of red cell transfusion avoided. We compared 441 patients screened in the pre‐operative anaemia programme with 239 patients not screened; of the patients screened, 180 (40.8%) received intravenous iron for anaemia and suboptimal iron stores. The estimated mean cost of screening and treating pre‐operative anaemia was AU$332 (£183; US$231; €204) per screened patient. In the propensity score weighted analysis, screened patients were transfused 52% less red cell units when compared with those not screened (rate ratio = 0.48, 95%CI 0.36–0.63, p < 0.001). The mean difference in total screening, treatment and hospitalisation cost between groups was AU$3776 lower in the group screened (£2080; US$2629; €2325) (95%CI AU$1604–5947, p < 0.001). Screening elective patients pre‐operatively for anaemia and suboptimal iron stores reduced the number of red cell units transfused. It also resulted in lower total costs than not screening patients, thus demonstrating cost effectiveness. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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19. Internetgebruik bij jongeren : ouders kijken toe vanop de zijlijn
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Symons, K., Ponnet, Koen, Walrave, Michel, and Heirman, Wannes
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Sociology - Published
- 2017
20. Portable oxygen concentrators versus oxygen cylinder during walking in interstitial lung disease: A randomized crossover trial
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Khor, YH, McDonald, CF, Hazard, A, Symons, K, Westall, G, Glaspole, I, Goh, NSL, Holland, AE, Khor, YH, McDonald, CF, Hazard, A, Symons, K, Westall, G, Glaspole, I, Goh, NSL, and Holland, AE
- Abstract
BACKGROUND AND OBJECTIVE: Ambulatory oxygen therapy is often provided to patients with interstitial lung disease (ILD). Lightweight portable oxygen concentrators (POCs) provide an alternative to traditional portable systems such as compressed oxygen cylinders; however, their efficacy in patients with ILD has not been assessed. This study aimed to evaluate the clinical performance of three ambulatory oxygen systems (two different POCs and a compressed oxygen cylinder) during 6-min walk tests (6MWTs) in patients with ILD and exertional desaturation. METHODS: A total of 20 participants with ILD of varying aetiologies who demonstrated exertional desaturation to <90% on room air during 6MWT were recruited. Each participant performed two 6MWTs while breathing room air. On a subsequent day, two further 6MWTs were performed, in random order: one breathing oxygen via a POC (either the Inogen One G2 POC or the EverGo POC at the setting of 6) and one with a compressed oxygen cylinder (at 5 L/min). RESULTS: There were no significant differences in nadir oxygen saturation (SpO2 ) during 6MWTs using different portable oxygen devices (Trial 1: mean SpO2 for Inogen One G2 POC: 82.3 ± 3.5% vs oxygen cylinder: 80.3 ± 2.2%, P = 0.14; Trial 2: mean SpO2 for EverGo POC: 85.7 ± 7.7% vs oxygen cylinder: 86.1 ± 6.1%, P = 0.79). The mean 6-min walk distances were not significantly different among the three devices. CONCLUSION: The performance of the Inogen One G2 POC and the EverGo POC had comparable performance with that of the compressed oxygen cylinder during walking in patients with ILD and exertional desaturation.
- Published
- 2017
21. Cyberpesten bij jongeren
- Author
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Symons, K., primary, Ponnet, K., additional, Walrave, M., additional, and Heirman, W., additional
- Published
- 2017
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22. Dossier Landbouw in de Andes
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De Frenne, K., Debuysscher, S., Van Bavel, J., Weckhuysen, J., Symons, K., Staels, G., De Frenne, K., Debuysscher, S., Van Bavel, J., Weckhuysen, J., Symons, K., and Staels, G.
- Abstract
In het dossier Landbouw in de Andes de volgende artikelen: Agro-business of familiale landbouw? Peru, bakermat van de aardappel. Cavia's en granadillas als moneymaker. Universitaire samenwerking en vermarkting. Trias is ook actief in Ecuador. Aardappelen telen boven 3000 meter. Cavia's verhogen gezinsinkomen op het platteland. Kwaliteitsgroenten voor de nichemarkt.
- Published
- 2016
23. Cyberpesten bij jongeren.
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Symons, K., Ponnet, K., Walrave, M., and Heirman, W.
- Abstract
Copyright of Kind en Adolescent is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
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24. PD-0400 IMPACT OF REPAIR DURING A TREATMENT FRACTION ON TUMOUR BED. UNTAPPED OPPORTUNITIES FOR TEMPORAL OPTIMISATION?
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Symons, K., primary, Ebert, M.A., additional, Suchowerska, N., additional, and McKenzie, D.R., additional
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- 2012
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25. Assessing embodied energy of building structural elements
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Vukotic, L., primary, Fenner, R. A., additional, and Symons, K., additional
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- 2010
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26. Airway Monitoring during Bronchodilation Using Acoustic Transmission Methods.
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Gavriely, N, primary, Thompson, B, additional, Camilleri, P, additional, Avrahami, A, additional, Symons, K, additional, Ellis, M, additional, Bowden, S, additional, White, A, additional, and Douglass, J, additional
- Published
- 2009
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27. Repair of Osteochondral Defects With Allogeneic Tissue Engineered Cartilage Implants
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Schreiber, R. E., primary, Ilten-Kirby, B. M., additional, Dunkelman, N. S., additional, Symons, K. T., additional, Rekettye, L. M., additional, Willoughby, J., additional, and Ratcliffe, A., additional
- Published
- 1999
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28. Why method matters: temporal, spatial and physical variations in LCA and their impact on choice of structural system
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Moncaster, A. M., Pomponi, F., Symons, K. E., Guthrie, P. M., Moncaster, A. M., Pomponi, F., Symons, K. E., and Guthrie, P. M.
- Abstract
Life Cycle Assessment (LCA) is increasingly used as an early-stage design-decision tool to support choices of structural system. However LCA modellers must first make numerous methodological decisions, and the resultant wide variations in approach are often inadequately described by the modellers. This paper identifies, and quantifies, the three major areas of methodological variation. These are: temporal differences in the stages considered; spatial differences in the material boundaries; and physical disparities in the data coefficients. The effects are then demonstrated through a case study of a student residential building in Cambridge. The cross-laminated timber (CLT) structure is compared with concrete frame, steel frame and load-bearing masonry, considering the influence that varying the temporal boundaries, the data coefficients, and the spatial boundaries has on the choice. While for this building CLT is confirmed as the lowest impact material, the paper demonstrates that varying the methodological choices can change the results by an alarming factor of 10 or even more. The findings confirm the need for the utmost clarity and transparency with all LCA calculations. Making wider industry or policy decisions based on LCA results should be undertaken with extreme caution.
29. A method and tool for ‘cradle to grave’ embodied energy and carbon impacts of UK buildings in compliance with the new TC350 standards
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Moncaster, A. M., Symons, K. E., Moncaster, A. M., and Symons, K. E.
- Abstract
As operational impacts from buildings are reduced, embodied impacts are increasing. However, the latter are seldom calculated in the UK; when they are, they tend to be calculated after the building has been constructed, or are underestimated by considering only the initial materials stage. In 2010, the UK Government recommended that a standard methodology for calculating embodied impacts of buildings be developed for early stage design decisions. This was followed in 2011–12 by the publication of the European TC350 standards defining the ‘cradle to grave’ impact of buildings and products through a process Life Cycle Analysis. This paper describes a new whole life embodied carbon and energy of buildings (ECEB) tool, designed as a usable empirical-based approach for early stage design decisions for UK buildings. The tool complies where possible with the TC350 standards. Initial results for a simple masonry construction dwelling are given in terms of the percentage contribution of each life cycle stage. The main difficulty in obtaining these results is found to be the lack of data, and the paper suggests that the construction and manufacturing industries now have a responsibility to develop new data in order to support this task.
30. Radical social innovations and the spatialities of grassroots activism: navigating pathways for tackling inequality and reinventing the commons
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Apostolopoulou, E, Bormpoudakis, D, Chatzipavlidis, A, Cortés Vázquez, J, Florea, I, Gearey, M, Levy, J, Loginova, J, Ordner, J, Partridge, T, Pizzaro, A, Rhoades, H, Symons, K, Veríssimo, c, Wahby, N, Apostolopoulou, E, Bormpoudakis, D, Chatzipavlidis, A, Cortés Vázquez, J, Florea, I, Gearey, M, Levy, J, Loginova, J, Ordner, J, Partridge, T, Pizzaro, A, Rhoades, H, Symons, K, Veríssimo, c, and Wahby, N
- Abstract
In this article, by drawing on empirical evidence from twelve case studies from nine countries from across the Global South and North, we ask how radical grassroots social innovations that are part of social movements and struggles can offer pathways for tackling socio-spatial and socio-environmental inequality and for reinventing the commons. We define radical grassroots social innovations as a set of practices initiated by formal or informal community-led initiatives or/and social movements which aim to generate novel, democratic, socially, spatially and environmentally just solutions to address social needs that are otherwise ignored or marginalised. To address our research questions, we draw on the work of Cindi Katz to explore how grassroots innovations relate to practices of resilience, reworking and resistance. We identify possibilities and limitations as well as patterns of spatial practices and pathways of re-scaling and radical praxis, uncovering broadly-shared resemblances across different places. Through this analysis we aim to make a twofold contribution to political ecology and human geography scholarship on grassroots radical activism, social innovation and the spatialities of resistance. First, to reveal the connections between social-environmental struggles, emerging grassroots innovations and broader structural factors that cause, enable or limit them. Second, to explore how grassroots radical innovations stemming from place-based community struggles can relate to resistance practices that would not only successfully oppose inequality and the withering of the commons in the short-term, but would also open long-term pathways to alternative modes of social organization, and a new commons, based on social needs and social rights that are currently unaddressed.
31. A method and tool for ‘cradle to grave’ embodied energy and carbon impacts of UK buildings in compliance with the new TC350 standards
- Author
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Moncaster, A. M., Symons, K. E., Moncaster, A. M., and Symons, K. E.
- Abstract
As operational impacts from buildings are reduced, embodied impacts are increasing. However, the latter are seldom calculated in the UK; when they are, they tend to be calculated after the building has been constructed, or are underestimated by considering only the initial materials stage. In 2010, the UK Government recommended that a standard methodology for calculating embodied impacts of buildings be developed for early stage design decisions. This was followed in 2011–12 by the publication of the European TC350 standards defining the ‘cradle to grave’ impact of buildings and products through a process Life Cycle Analysis. This paper describes a new whole life embodied carbon and energy of buildings (ECEB) tool, designed as a usable empirical-based approach for early stage design decisions for UK buildings. The tool complies where possible with the TC350 standards. Initial results for a simple masonry construction dwelling are given in terms of the percentage contribution of each life cycle stage. The main difficulty in obtaining these results is found to be the lack of data, and the paper suggests that the construction and manufacturing industries now have a responsibility to develop new data in order to support this task.
32. Radical social innovations and the spatialities of grassroots activism: navigating pathways for tackling inequality and reinventing the commons
- Author
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Apostolopoulou, E., Bormpoudakis, D., Chatzipavlidis, A., Cortés Vázquez, J., Florea, I., Gearey, M., Levy, J., Loginova, J., Ordner, J., Partridge, T., Pizzaro, A., Rhoades, H., Symons, K., Veríssimo, C., Wahby, N., Apostolopoulou, E., Bormpoudakis, D., Chatzipavlidis, A., Cortés Vázquez, J., Florea, I., Gearey, M., Levy, J., Loginova, J., Ordner, J., Partridge, T., Pizzaro, A., Rhoades, H., Symons, K., Veríssimo, C., and Wahby, N.
- Abstract
In this article, by drawing on empirical evidence from twelve case studies from nine countries from across the Global South and North, we ask how radical grassroots social innovations that are part of social movements and struggles can offer pathways for tackling socio-spatial and socio-environmental inequality and for reinventing the commons. We define radical grassroots social innovations as a set of practices initiated by formal or informal community-led initiatives or/and social movements which aim to generate novel, democratic, socially, spatially and environmentally just solutions to address social needs that are otherwise ignored or marginalised. To address our research questions, we draw on the work of Cindi Katz to explore how grassroots innovations relate to practices of resilience, reworking and resistance. We identify possibilities and limitations as well as patterns of spatial practices and pathways of re-scaling and radical praxis, uncovering broadly-shared resemblances across different places. Through this analysis we aim to make a twofold contribution to political ecology and human geography scholarship on grassroots radical activism, social innovation and the spatialities of resistance. First, to reveal the connections between social-environmental struggles, emerging grassroots innovations and broader structural factors that cause, enable or limit them. Second, to explore how grassroots radical innovations stemming from place-based community struggles can relate to resistance practices that would not only successfully oppose inequality and the withering of the commons in the short-term, but would also open long-term pathways to alternative modes of social organization, and a new commons, based on social needs and social rights that are currently unaddressed.
33. Why method matters: temporal, spatial and physical variations in LCA and their impact on choice of structural system
- Author
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Moncaster, A. M., Pomponi, F., Symons, K. E., Guthrie, P. M., Moncaster, A. M., Pomponi, F., Symons, K. E., and Guthrie, P. M.
- Abstract
Life Cycle Assessment (LCA) is increasingly used as an early-stage design-decision tool to support choices of structural system. However LCA modellers must first make numerous methodological decisions, and the resultant wide variations in approach are often inadequately described by the modellers. This paper identifies, and quantifies, the three major areas of methodological variation. These are: temporal differences in the stages considered; spatial differences in the material boundaries; and physical disparities in the data coefficients. The effects are then demonstrated through a case study of a student residential building in Cambridge. The cross-laminated timber (CLT) structure is compared with concrete frame, steel frame and load-bearing masonry, considering the influence that varying the temporal boundaries, the data coefficients, and the spatial boundaries has on the choice. While for this building CLT is confirmed as the lowest impact material, the paper demonstrates that varying the methodological choices can change the results by an alarming factor of 10 or even more. The findings confirm the need for the utmost clarity and transparency with all LCA calculations. Making wider industry or policy decisions based on LCA results should be undertaken with extreme caution.
34. Correspondence: A. E. Housman and music
- Author
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Symons, K. E., primary
- Published
- 1944
- Full Text
- View/download PDF
35. A self-management package for pulmonary fibrosis: A feasibility study.
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Lee JYT, Tikellis G, Hoffman M, Mellerick CR, Symons K, Bondarenko J, Khor YH, Glaspole I, and Holland AE
- Abstract
Background and Objective: There is currently no self-management package designed to meet the needs of people with pulmonary fibrosis (PF). This study evaluated the feasibility and acceptability of a PF-specific self-management package., Methods: Adults with PF were randomly allocated (1:1) to either receive the self-management package with healthcare professional (HCP) support or standardised PF information. Primary outcomes were feasibility and acceptability of the intervention. Secondary outcomes included health-related quality of life, self-efficacy, breathlessness, daily steps, use of PF-related treatments, and healthcare utilisation. Participants' experiences of using the package were explored using qualitative interviews., Results: Thirty participants were included. Recruitment rate was 91% and 100% of those recruited were randomised. Eighty-seven percent of participants who received the package read ≥1 module and set a goal. Secondary outcomes were feasible to collect with high assessment completion rates (87%). Most participants reported the package was easy to use and enhanced knowledge, but suggested some improvements, while HCP support was highly valued., Conclusion: A PF-specific self-management package was feasible to deliver and requires further testing in a trial powered to detect changes in clinical outcomes., Innovation: This is the first self-management package designed specifically for people with PF, informed by patient experience and expert consensus., Competing Interests: The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Yet H. Khor reports a relationship with 10.13039/501100000925National Health and Medical Research Council that includes: funding grants. Yet H. Khor reports a relationship with Medical Research Future Fund that includes: funding grants. Yet H. Khor reports a relationship with Air Liquide Healthcare that includes: non-financial support. Yet H. Khor reports a relationship with 10.13039/501100006630Lung Foundation Australia that includes: funding grants. Yet H. Khor reports a relationship with 10.13039/501100001247Thoracic Society of Australia and New Zealand that includes: funding grants. Yet H. Khor reports a relationship with The Royal Australasian College of Physicians that includes: funding grants. Co-author is a board director (Special Interest Group Convenor) at the Thoracic Society of Australia and New Zealand; a guideline methodologist (Clinical Problems Assembly Program Committee) at the 10.13039/100001465American Thoracic Society; and an associate editor for the European Respiratory Journal, European Respiratory Society - Y.H.K. If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2024 The Authors.)
- Published
- 2024
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36. Navigating the COVID-19 pandemic: Experiences and self-management approaches adopted by people with interstitial lung disease.
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Tikellis G, Corte T, Glaspole IN, Goh NSL, Khor YH, Wrobel J, Symons K, Fuhrmeister L, Glenn L, Chirayath S, Troy LK, King B, and Holland AE
- Subjects
- Humans, Female, Aged, Male, SARS-CoV-2, Pandemics, COVID-19 epidemiology, Self-Management, Lung Diseases, Interstitial
- Abstract
Background: People with interstitial lung disease (ILD) were deemed more vulnerable to the SARS-CoV-2 virus and isolated as a means of reducing risk of infection. This study examined the impact of the pandemic on daily life, psychological wellbeing and access to healthcare and identified approaches undertaken to remain safe., Methods: Four specialist clinics in tertiary centres in Australia (Victoria: two sites; New South Wales: one site; Western Australia: one site) recruited patients with ILD during an 8-week period from March 2021. Semi-structured telephone interviews were conducted with transcripts analysed using principles of grounded theory., Results: Ninety participants were interviewed between April and December 2021. Participants were predominantly female, former smokers with an average age of 66 years. IPF and connective tissue-ILD being the most common subtypes. Five main themes were identified: vulnerability reduced social interaction and isolation, access to healthcare services and support, staying active, emotional and psychological impact. Self-management strategies included staying active both physically and mentally., Discussion: Self-management was key to managing the impact of the pandemic. In combination with advances in technology, implementation of strategies for monitoring wellbeing and support for self-management provides an opportunity to leverage the lessons learnt to ensure a more individualised model of care for people with ILD., Competing Interests: Declaration of conflicting interestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
- Published
- 2024
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- View/download PDF
37. Understanding the telehealth experience of care by people with ILD during the COVID-19 pandemic: what have we learnt?
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Tikellis G, Corte T, Glaspole IN, Goh N, Khor YH, Wrobel J, Symons K, Fuhrmeister L, Glenn L, Chirayath S, Troy L, and Holland AE
- Subjects
- Humans, Female, Aged, Male, Pandemics, COVID-19, Lung Diseases, Interstitial therapy, Idiopathic Pulmonary Fibrosis therapy, Telemedicine methods
- Abstract
Introduction: The COVID-19 pandemic resulted in a rapid transformation of health services. This study aimed to understand the experiences of healthcare by people with interstitial lung disease (ILD), to inform future service delivery., Methods: Four specialist clinics in tertiary centres in Australia (Victoria:2 sites; New South Wales: 1 site; Western Australia: 1 site) recruited patients with ILD during an 8-week period from March 2021. Participants completed a COVID-specific questionnaire focused on health-related experiences during 2020., Results: Ninety nine (65% of 153) participants completed the questionnaire. 47% had idiopathic pulmonary fibrosis or connective tissue disease-associated ILD, 62% were female and the average age was 66 years. Whilst 56% rated their overall health in 2020 as the same as months prior, 38% indicated a worsening in health attributed to reduced physical activity and fear of contracting the virus. Access to healthcare professionals was 'good' in 61%, and 'fair-to-poor' for 37% due to missed respiratory assessments, with telehealth (mainly telephone) being perceived as less effective. 89% had contact with respiratory physicians, 68% with general practitioners, predominantly via telephone, with few video consultations. High satisfaction with care was reported by 78%, with lower satisfaction attributed to delays in assessments, disruption to usual services such as pulmonary rehabilitation, and dissatisfaction with telehealth., Conclusion: People with ILD were generally satisfied with their care during 2020, however reduced access to healthcare professionals was challenging for those experiencing a deterioration in health. Telehealth was largely well received but did not always meet the needs of people with ILD particularly when unwell., (© 2023. The Author(s).)
- Published
- 2023
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38. Matrix metalloproteinase-7 is increased in lung bases but not apices in idiopathic pulmonary fibrosis.
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Jaffar J, Wong M, Fishbein GA, Alhamdoosh M, McMillan L, Gamell-Fulla C, Ng M, Wilson N, Symons K, Glaspole I, and Westall G
- Abstract
Introduction: Idiopathic pulmonary fibrosis (IPF) is a progressively fibrotic lung condition with poor prognosis. Matrix metalloproteinase-7 (MMP7) is a protein secreted by epithelial cells in IPF lungs. It is not known if MMP7 expression correlates with fibrotic changes in lung tissue., Methods: Tissue samples from lung apices and bases were obtained from 20 IPF patients and 14 non-diseased control (NDC) donors. In formalin-fixed paraffin-embedded sections, histological assessment of fibrosis was performed; overall MMP7 positivity was assessed by immunohistochemistry and MMP7
+ cells were quantified using multiplex immunohistochemistry. Protein expression of MMP7 in whole lung lysates was quantified by Western blotting. Bulk tissue transcriptomic profiles of 101 samples were analysed using RNA sequencing technologies., Results: Lung tissue from IPF bases was more fibrotic than in apices. MMP7 protein is elevated in IPF lung base tissue. In IPF whole lung lysates, MMP7 protein levels are increased compared to NDC donors and was increased in IPF lung bases compared to apices. MMP7 protein levels correlated with MMP7 gene expression levels in lung tissue. MMP7 transcript levels were increased in IPF base compared to NDC base lung tissue and increased in IPF base tissue compared to IPF apex tissue., Conclusions: Our cross-sectional study suggests that lung epithelial MMP7 expression increases as the tissue becomes more fibrotic and identifies a potentially nonepithelial or immune-cell source. Mechanisms of disease progression in IPF are still unclear, and our study suggests aberrant MMP7 production may be a histological starting point of lung tissue fibrosis., Competing Interests: Conflict of interest: M. Wong has received support for the present manuscript from CSL; the following disclosures have been made outside the submitted work: employee of CSL Innovations Pty Ltd, who provided support for attending meetings/travel; shareholder of CSL stocks. M. Alhamdoosh has received support for the present manuscript from CSL; the following disclosures have been made outside the submitted work: employee of CSL Limited and shareholder of CSL Limited. L. McMillan has received support for the present manuscript from CSL; the following relationships have been disclosed outside the submitted work: employee of CSL Innovations. C. Gamell-Fulla has received support for the present manuscript from CSL. M. Ng reports the following relationships have been disclosed outside the submitted work: employment contract with CSL and stocks owned in CSL. G. Westall has received support for the present manuscript from CSL; the following relationships have been disclosed outside the submitted work: participation in an Advisory Board Meeting for CSL. The remaining authors have nothing to disclose., (Copyright ©The authors 2022.)- Published
- 2022
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39. Hospital-Acquired Infection, Length of Stay, and Readmission in Elective Surgery Patients Transfused 1 Unit of Red Blood Cells: A Retrospective Cohort Study.
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Trentino KM, Leahy MF, Erber WN, Mace H, Symons K, Budgeon CA, and Murray K
- Subjects
- Erythrocyte Transfusion adverse effects, Erythrocyte Transfusion methods, Erythrocytes, Hospitals, Humans, Length of Stay, Patient Readmission, Retrospective Studies, Cross Infection, Elective Surgical Procedures adverse effects
- Abstract
Background: Most patients transfused red blood cells in elective surgery receive small volumes of blood, which is likely to be discretionary and avoidable. We investigated the outcomes of patients who received a single unit of packed red blood cells during their hospital admission for an elective surgical procedure when compared to those not transfused., Methods: This retrospective cohort study included elective surgical admissions to 4 hospitals in Western Australia over a 6-year period. Participants were included if they were at least 18 years of age and were admitted for elective surgery between July 2014 and June 2020. We compared outcomes of patients who had received 1 unit of red blood cells to patients who had not been transfused. To balance differences in patient characteristics, we weighted our multivariable regression models using the inverse probability of treatment. In addition to propensity score weighting, our multivariable regression models adjusted for hemoglobin level, surgical procedure, patient age, gender, comorbidities, and the transfusion of fresh-frozen plasma or platelets. Outcomes studied were hospital-acquired infection, hospital length of stay, and all-cause emergency readmissions within 28 days., Results: Overall, 767 (3.2%) patients received a transfusion of 1 unit of red blood cells throughout their admission. In the propensity score weighted analysis, the transfusion of a single unit of red blood cells was associated with higher odds of hospital-acquired infection (odds ratio, 3.94; 95% confidence interval [CI], 2.99-5.20; P < .001). Patients who received 1 unit of red blood cells throughout their admission were more likely to have a longer hospital stay (rate ratio, 1.57; 95% CI, 1.51-1.63; P < .001) and had 1.42 (95% CI, 1.20-1.69; P < .001) times higher odds of 28-day readmission., Conclusions: These results suggest that avoidance of even small volumes of packed red blood cells may prevent adverse clinical outcomes. This may encourage hospital administrators to implement strategies to avoid the transfusion of even small volumes of red blood cells by applying patient blood management practices., Competing Interests: Conflicts of Interest: See Disclosures at the end of the article., (Copyright © 2022 International Anesthesia Research Society.)
- Published
- 2022
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40. Brief Research Report: "Nothing About Us, Without Us": A Case Study of the Outer Sanctum Podcast and Trends in Australian Independent Media to Drive Intersectional Representation.
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Symons K, Duncan S, and Sherry E
- Abstract
Alternative and independent sports media platforms create custom content that reflects a diversity of voices and representation of athletes, sports and issues that are not covered in meaningful ways in traditional sports media. While these new media outlets often set out to redress the lack of diversity and intersectional approaches to traditional sports media, they are also seeking ways to drive even more change. This in an interesting and important movement to interrogate as these platforms are not only predominantly unfunded, passion projects created by those marginalized groups. This brief research report provides a case study into this emerging alternative media space and its impact in driving change in an ever-evolving sports media landscape. We also discuss the problematic nature of intersectional-redressing work falling on those who still occupy the margins. This report uses a case study of an independent Australian rules football platform, The Outer Sanctum podcast, to focus on these key areas. The case study investigates how this outlet has worked to increase the visibility and profile of marginalized and underrepresented voices discussing football in new ways. It follows their journey as they have taken steps to improve their own diversity, enacting their mantra "nothing about us, without us," and proactively becoming more intersectional in their content producing journey. This research report will present key findings from the work of this media outlet to drive change and point to the learnings mainstream media can adopt to meaningfully embed intersectional approaches to sports media as core business., 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 © 2022 Symons, Duncan and Sherry.)
- Published
- 2022
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41. Self-management for pulmonary fibrosis: Insights from people living with the disease and healthcare professionals.
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Lee JYT, Tikellis G, Glaspole I, Khor YH, Symons K, and Holland AE
- Subjects
- Delivery of Health Care, Health Personnel, Humans, Qualitative Research, Pulmonary Fibrosis therapy, Self-Management
- Abstract
Objective: People with pulmonary fibrosis (PF) consider self-management essential for maintaining health. This study aims to explore the needs and expectations of PF self-management from the patient and healthcare professionals (HCPs) perspectives., Methods: Semi-structured interviews were conducted with people with PF and HCPs. Purposive sampling was used to recruit participants. Thematic analysis was performed using the principles of grounded theory., Results: 18 individuals with PF and 15 HCPs were interviewed. Common self-management components reported included exercise, nutrition, maintaining healthy mind, avoiding infections, recognising deterioration and seeking help, managing symptoms and treatments, social support, and end-of-life planning. Both groups felt that effective self-management required individualised strategies, supports, and reliable information. People with PF identified access to personal health data and self-acceptance as part of self-management. HCPs highlighted the importance of accessible supports and managing patient expectations of disease course and treatments. Some HCPs concerned about missed detection of deterioration and suggested that self-management strategies for PF may differ to other lung diseases., Conclusion: This study identified components important for self-management in PF and provides a basis for designing a PF self-management package., Practice Implications: Self-management of PF can be facilitated with individualised support from HCPs and reliable information that is accessible., (Copyright © 2021 Elsevier B.V. All rights reserved.)
- Published
- 2022
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42. Coagulation factor-XII induces interleukin-6 by primary lung fibroblasts: a role in idiopathic pulmonary fibrosis?
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Jaffar J, McMillan L, Wilson N, Panousis C, Hardy C, Cho HJ, Symons K, Glaspole I, Westall G, and Wong M
- Subjects
- Factor XII metabolism, Fibroblasts metabolism, Humans, Interleukin-6 metabolism, Lung metabolism, Idiopathic Pulmonary Fibrosis metabolism
- Abstract
The mechanisms driving idiopathic pulmonary fibrosis (IPF) remain undefined, however it is postulated that coagulation imbalances may play a role. The impact of blood-derived clotting factors, including factor XII (FXII) has not been investigated in the context of IPF. Plasma levels of FXII were measured by ELISA in patients with IPF and in age-matched healthy donors. Expression of FXII in human lung tissue was quantified using multiplex immunohistochemistry and Western blotting. Mechanistic investigation of FXII activity was assessed in vitro on primary lung fibroblasts using qPCR and specific receptor/FXII inhibition. The functional outcome of FXII on fibroblast migration was examined by high-content image analysis. Compared with 35 healthy donors, plasma levels of FXII were not higher in patients with IPF ( n = 27, P > 0.05). Tissue FXII was elevated in IPF ( n = 11) and increased numbers of FXII+ cells were found in IPF ( n = 8) lung tissue compared with nondiseased controls ( n = 6, P < 0.0001). Activated FXII induced IL6 mRNA and IL-6 protein in fibroblasts that was blocked by anti-FXII antibody, CSL312. FXII induced IL-6 production via PAR-1 and NF-κB. FXII induced migration of fibroblasts in a concentration-dependent manner. FXII is normally confined to the circulation but it leaks from damaged vessels into the lung interstitium in IPF where it 1 ) induces IL-6 production and 2 ) enhances migration of resident fibroblasts, critical events that drive chronic inflammation and therefore, contribute to fibrotic disease progression. Targeting FXII-induced fibroblastic processes in IPF may ameliorate pulmonary fibrosis.
- Published
- 2022
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43. Inhibition of NF-κB by ACT001 reduces fibroblast activity in idiopathic pulmonary fibrosis.
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Jaffar J, Glaspole I, Symons K, and Westall G
- Subjects
- Adult, Aged, Cell Survival drug effects, Cell Survival physiology, Dose-Response Relationship, Drug, Female, Fibroblasts metabolism, Fibroblasts pathology, Humans, Idiopathic Pulmonary Fibrosis metabolism, Idiopathic Pulmonary Fibrosis pathology, Male, Middle Aged, NF-kappa B metabolism, Sesquiterpenes chemistry, Sesquiterpenes pharmacology, Fibroblasts drug effects, Idiopathic Pulmonary Fibrosis drug therapy, NF-kappa B antagonists & inhibitors, Sesquiterpenes therapeutic use
- Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive fibrotic lung disease of unknown etiology and poor prognosis. In IPF, aberrant extracellular matrix production by activated, hyperproliferative fibroblasts drives disease progression but the exact mechanisms by which this occurs remains undefined. The transcription factor nuclear factor kappa-B (NF-ĸB) has been suggested as a potential therapeutic target in IPF and therefore the aim of this study was to investigate the efficacy of ACT001, an NF-ĸB inhibitor, on primary fibroblasts derived from patients with and without IPF. Primary lung fibroblasts derived from eight patients with IPF and eight age-matched non-diseased controls (NDC) were treated with 0-10 µM ACT001 and the effects on fibroblast activity (viability and proliferation, fibroblast-to-myofibroblast transition, fibronectin expression), interleukin (IL)-6 and IL-8 cytokine release were quantified. ACT001 inhibited fibroblast activity in a concentration-dependent manner in both groups of fibroblasts. ACT001 inhibited IL-6 but not IL-8 production in unstimulated fibroblasts. ACT001 is a water-soluble compound with a stable half-life in plasma, thus making it an attractive candidate for further investigation as a therapeutic in IPF. This study adds to the growing body of literature that demonstrates anti-fibrotic activity of NF-ĸB inhibition in the context of IPF., (Copyright © 2021 The Authors. Published by Elsevier Masson SAS.. All rights reserved.)
- Published
- 2021
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44. Associations of a Preoperative Anemia and Suboptimal Iron Stores Screening and Management Clinic in Colorectal Surgery With Hospital Cost, Reimbursement, and Length of Stay: A Net Cost Analysis.
- Author
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Trentino KM, Mace H, Symons K, Sanfilippo FM, Leahy MF, Farmer SL, Watts RD, Hamdorf JM, and Murray K
- Subjects
- Aged, Anemia blood, Anemia diagnosis, Biomarkers blood, Colonic Diseases diagnosis, Cost Savings, Cost-Benefit Analysis, Digestive System Surgical Procedures adverse effects, Erythrocyte Transfusion economics, Female, Humans, Male, Middle Aged, Rectal Diseases diagnosis, Retrospective Studies, Time Factors, Treatment Outcome, Western Australia, Anemia drug therapy, Anemia economics, Colonic Diseases economics, Colonic Diseases surgery, Digestive System Surgical Procedures economics, Fee-for-Service Plans, Hospital Costs, Length of Stay economics, Outpatient Clinics, Hospital economics, Rectal Diseases economics, Rectal Diseases surgery
- Abstract
Background: In 2016, a preoperative clinic was implemented to screen, evaluate, and manage anemia and suboptimal iron stores at a major tertiary care medical center in Western Australia. Few studies compare the costs and reimbursements associated with preoperative anemia and suboptimal iron stores management. The objective of our study was to conduct a net cost analysis associated with the implementation of this clinic., Methods: We designed a retrospective cohort study involving elective colorectal surgical admissions over a 3-year period. The baseline year selected was the 2015-2016 financial year, with outcomes in the 2016-2017 and 2017-2018 year compared to baseline. The study perspective was the Western Australian Health System. Hospital costs were extracted from the health service clinical costing system, which captures costs at the admission level. The primary outcome was net cost, defined as gross cost minus reimbursement (or funding) received., Results: Our 3-year study included 544 admissions for elective colorectal surgery. After the implementation of the preoperative clinic, 73.4% (n = 257) of admissions were screened for anemia and suboptimal iron stores, and 31.4% (n = 110) received intravenous iron. In our adjusted analysis, when comparing the final year (2017-2018) with baseline (2015-2016), the units of red blood cells transfused per admission decreased 53% (142 vs 303 units per 1000 discharges; P = .006), and mean hospital length of stay decreased 15% (7.7 vs 9.1 days; P = .008). When comparing the final year with baseline, rectal resection admissions were associated with a mean decrease in the net cost of Australian dollar (A$) 7619 (95% confidence interval, 4230-11,008; P < .001) between 2015-2016 and 2017-2018. For small and large bowel procedures, there was a mean decrease of A$6744 (95% confidence interval, 2430-11,057; P = .002)., Conclusions: The implementation of a preoperative anemia and suboptimal iron stores screening and management clinic in elective colorectal surgery was associated with reductions in red cell transfusions, length of stay, and net costs., Competing Interests: Conflicts of Interest: See Disclosures at the end of the article., (Copyright © 2020 International Anesthesia Research Society.)
- Published
- 2021
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45. Taste Function in Adults Undergoing Cancer Radiotherapy or Chemotherapy, and Implications for Nutrition Management: A Systematic Review.
- Author
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Kiss N, Symons K, Hewitt J, Davis H, Ting C, Lee A, Boltong A, Tucker RM, and Tan SY
- Subjects
- Adult, Drug-Related Side Effects and Adverse Reactions therapy, Female, Humans, Male, Middle Aged, Neoplasms therapy, Nutritional Status, Radiation Injuries therapy, Taste drug effects, Taste radiation effects, Taste Disorders therapy, Drug-Related Side Effects and Adverse Reactions physiopathology, Neoplasms physiopathology, Nutrition Therapy methods, Radiation Injuries physiopathology, Taste Disorders etiology
- Abstract
Background: Taste changes are commonly reported by people with cancer undergoing radio- or chemotherapy. Taste changes may compromise dietary intake and nutritional status., Objective: To understand whether or not taste change is associated with cancer diagnosis or treatment modality in adults., Methods: A systematic literature search up to December 31, 2019, was conducted using PubMed, Embase, and PsycInfo (International Prospective Register of Systematic Reviews protocol no. CRD42019134005). Studies in adults with cancer objectively assessing the effect of a cancer diagnosis or chemotherapy and/or radiotherapy treatment on taste function compared with healthy controls or within participant changes were included. Additional outcomes were food liking, appetite, dietary intake, nutritional status, and body composition. Reference lists of relevant articles were searched to identify additional articles. Quality was assessed using the Academy of Nutrition and Dietetics quality criteria checklist., Results: A total of 24 articles were included, one of which consisted of two studies that reported the effects of radiotherapy and chemotherapy separately. From the total 25 studies reported in 24 published articles, 14 studies examined effects of radiotherapy, and remaining 11 studies examined chemotherapy. There is limited evidence of a cancer diagnosis per se contributing to taste dysfunction. Impaired taste function was reported in almost all radiotherapy studies, occurring as early as Week 3 of treatment and lasting for 3 to 24 months posttreatment. During chemotherapy, impairment of taste function was less consistently reported, occurring as early as the first few days of chemotherapy, and persisting up to 6 months posttreatment. Taxane-based chemotherapy was reported to affect taste function more than other treatments. Several studies reported reduced liking for food, appetite, and dietary intake. Only one study reported nutritional status of participants, finding no association between taste function and nutritional status. No studies examined associations between taste changes and body composition., Conclusions: This review highlights the importance of considering treatment modality in practice. Research is required to identify factors contributing to taste alteration and to inform evidence-based interventions., (Copyright © 2021 Academy of Nutrition and Dietetics. Published by Elsevier Inc. All rights reserved.)
- Published
- 2021
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46. Diagnosis and management of connective tissue disease-associated interstitial lung disease in Australia and New Zealand: A position statement from the Thoracic Society of Australia and New Zealand.
- Author
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Jee AS, Sheehy R, Hopkins P, Corte TJ, Grainge C, Troy LK, Symons K, Spencer LM, Reynolds PN, Chapman S, de Boer S, Reddy T, Holland AE, Chambers DC, Glaspole IN, Jo HE, Bleasel JF, Wrobel JP, Dowman L, Parker MJS, Wilsher ML, Goh NSL, Moodley Y, and Keir GJ
- Subjects
- Australia, Clinical Trials as Topic, Connective Tissue Diseases diagnostic imaging, Connective Tissue Diseases pathology, Humans, Lung Diseases, Interstitial diagnostic imaging, Lung Diseases, Interstitial pathology, New Zealand, Connective Tissue Diseases complications, Connective Tissue Diseases diagnosis, Lung Diseases, Interstitial complications, Lung Diseases, Interstitial diagnosis, Societies, Medical
- Abstract
Pulmonary complications in CTD are common and can involve the interstitium, airways, pleura and pulmonary vasculature. ILD can occur in all CTD (CTD-ILD), and may vary from limited, non-progressive lung involvement, to fulminant, life-threatening disease. Given the potential for major adverse outcomes in CTD-ILD, accurate diagnosis, assessment and careful consideration of therapeutic intervention are a priority. Limited data are available to guide management decisions in CTD-ILD. Autoimmune-mediated pulmonary inflammation is considered a key pathobiological pathway in these disorders, and immunosuppressive therapy is generally regarded the cornerstone of treatment for severe and/or progressive CTD-ILD. However, the natural history of CTD-ILD in individual patients can be difficult to predict, and deciding who to treat, when and with what agent can be challenging. Establishing realistic therapeutic goals from both the patient and clinician perspective requires considerable expertise. The document aims to provide a framework for clinicians to aid in the assessment and management of ILD in the major CTD. A suggested approach to diagnosis and monitoring of CTD-ILD and, where available, evidence-based, disease-specific approaches to treatment have been provided., (© 2020 The Authors. Respirology published by John Wiley & Sons Australia, Ltd on behalf of Asian Pacific Society of Respirology.)
- Published
- 2021
- Full Text
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47. Pulmonary rehabilitation for interstitial lung disease: Referral and patient experiences.
- Author
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Hoffman M, Mellerick C, Symons K, Glaspole I, and Holland AE
- Subjects
- Adolescent, Exercise Tolerance, Humans, Patient Outcome Assessment, Referral and Consultation, Walk Test, Lung Diseases, Interstitial rehabilitation, Lung Diseases, Interstitial therapy, Pulmonary Disease, Chronic Obstructive therapy
- Abstract
Objectives: The objectives of this study were to determine the proportion of patients with interstitial lung disease (ILD) referred to pulmonary rehabilitation (PR) and to understand their experiences of participation or non-participation. Methods: Adults (>18 years old) with a diagnosis of ILD were identified from the Alfred Health ILD registry in Melbourne. Information regarding PR referral and attendance were collected from medical records. Semi-structured interviews with open-ended questions were conducted with patients who had been referred to PR. Results: Of 336 patients eligible for inclusion, PR referral was identified in 137 patients (40.7%). Patients referred to PR had worse respiratory function than those not referred (forced vital capacity mean 64 (SD 23) vs 79 (19) % predicted) and more desaturation during a 6-min walk test (86.6 (7.8%) vs 88.5 (7.0%)). Semi-structured interviews identified three major themes: valued components of PR (supervision and individualization, improved confidence with exercise, education and peer support); limited knowledge about PR prior to attendance and barriers to attending PR (lack of perceived benefits, fear of exercise and accessibility). Discussion: Over 40% of patients who attended a specialist ILD clinic were referred to pulmonary rehabilitation, with higher referral rates in those with more severe disease. There are opportunities to improve patient knowledge regarding the role and expected benefits of PR in people with ILD.
- Published
- 2021
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48. CXCR4 + cells are increased in lung tissue of patients with idiopathic pulmonary fibrosis.
- Author
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Jaffar J, Griffiths K, Oveissi S, Duan M, Foley M, Glaspole I, Symons K, Organ L, and Westall G
- Subjects
- Aged, Biomarkers blood, Female, Humans, Leukocytes, Mononuclear metabolism, Leukocytes, Mononuclear pathology, Male, Middle Aged, Idiopathic Pulmonary Fibrosis blood, Idiopathic Pulmonary Fibrosis diagnosis, Lung metabolism, Lung pathology, Receptors, CXCR4 blood
- Abstract
Background: CXCR4, a transmembrane-receptor located on epithelial cells that is activated by CXCL12, may have a role in IPF via migration of CXCR4
+ fibrocytes to the lung. However, its expression has not been fully characterised in idiopathic pulmonary fibrosis (IPF) or other fibrotic interstitial lung diseases (ILDs). CXCL12 is constitutively expressed in the bone marrow, and levels of CXCR4 regulate control of this signalling pathway. The aim of this study was to profile the expression of CXCR4 in lung tissue and peripheral circulation of patients with IPF and other fibrotic ILDs., Methods: Expression of CXCR4 on peripheral blood mononuclear cells (PBMCs) was examined by flow cytometry in 20 patients with IPF and 10 age-matched non-disease control (NDC) donors. Levels of CXCL12 in human plasma were measured by ELISA. Expression of CXCR4, CXCL12, CD45, and e-cadherin was assessed in IPF (n = 10), other fibrotic ILD (n = 8) and NDC (n = 10) lung tissue by multiplex immunohistochemistry (OPAL) and slides were scanned using a Vectra 3 scanner. Cells were quantified with computer automated histological analysis software (HALO)., Results: In blood, the number of CXCR4+ cells was lower but the level of CXCL12 was higher in patients with IPF compared to NDC donors. Elevated CXCR4 expression was detected in lung tissue from patients with IPF and other fibrotic ILDs compared to NDC. There were higher levels of CXCR4+ /e-cadherin+ /CXCL12+ (epithelial) cells in IPF lung tissue compared to NDC, but there was no difference in the numbers of CXCR4+ /CD45+ /CXCL12+ (myeloid) cells between the two groups., Conclusions: This report demonstrates that CXCR4 is overexpressed not only in IPF but also in other ILDs and expression is particularly prominent within both honeycomb cysts and distal airway epithelium. This observation supports the hypothesis that CXCR4 may drive tissue fibrosis through binding its specific ligand CXCL12. Although CXCR4 expressing cells could be either of epithelial or myeloid origin it appears that the former is more prominent in IPF lung tissue. Further characterization of the cells of the honeycomb cyst may lead to a better understanding of the fibrogenic processes in IPF and other end-stage fibrotic ILDs.- Published
- 2020
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49. Blood monocyte counts as a potential prognostic marker for idiopathic pulmonary fibrosis: analysis from the Australian IPF registry.
- Author
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Teoh AKY, Jo HE, Chambers DC, Symons K, Walters EH, Goh NS, Glaspole I, Cooper W, Reynolds P, Moodley Y, and Corte TJ
- Subjects
- Australia, Humans, Prognosis, Registries, Idiopathic Pulmonary Fibrosis diagnosis, Monocytes
- Abstract
Competing Interests: Conflict of interest: A.K.Y. Teoh reports personal fees from Roche and Boehringer, outside the submitted work. Conflict of interest: H.E. Jo has nothing to disclose. Conflict of interest: D.C. Chambers has nothing to disclose. Conflict of interest: K. Symons has nothing to disclose. Conflict of interest: E.H. Walters has nothing to disclose. Conflict of interest: N.S. Goh has nothing to disclose. Conflict of interest: I. Glaspole reports personal fees from Boehringer Ingelheim, Avalyn and Roche, outside the submitted work. Conflict of interest: W. Cooper has nothing to disclose. Conflict of interest: P. Reynolds has nothing to disclose. Conflict of interest: Y. Moodley reports advisory board membership for Roche and Boehringer Ingelheim, outside the submitted work. Conflict of interest: T.J. Corte reports grants, personal fees for advisory board work and lectures, and travel support from Boehringer, grants and personal fees for advisory board work and lectures from Roche, grants from Galapagos, Actelion, Bayer and Sanofi, personal fees for advisory board work from AstraZeneca, outside the submitted work.
- Published
- 2020
- Full Text
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50. Volumetric modulated arc therapy for total body irradiation: A feasibility study using Pinnacle 3 treatment planning system and Elekta Agility™ linac.
- Author
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Symons K, Morrison C, Parry J, Woodings S, and Zissiadis Y
- Subjects
- Algorithms, Feasibility Studies, Humans, Particle Accelerators, Phantoms, Imaging, Radiotherapy Dosage, Radiotherapy Planning, Computer-Assisted methods, Retrospective Studies, Abdomen radiation effects, Head radiation effects, Neoplasms radiotherapy, Pelvis radiation effects, Radiotherapy, Intensity-Modulated methods, Thorax radiation effects, Whole-Body Irradiation
- Abstract
A study was undertaken to explore the use of volumetric modulated arc therapy (VMAT) for total body irradiation (TBI). Five patient plans were created in Pinnacle
3 using nine 6 MV photon dynamic arcs. A dose of 12 Gy in six fractions was prescribed. The planning target volume (PTV) was split into four subsections for the head, chest, abdomen, and pelvis. The head and chest beams were optimized together, followed by the abdomen and pelvis beams. The last stage of the planning process involved turning all beams on and performing a final optimization to achieve a clinically acceptable plan. Beam isocenters were shifted by 3 or 5 mm in the left-right, anterior-posterior, and superior-inferior directions to simulate the effect of setup errors on the dose distribution. Treatment plan verification consisted of ArcCheck measurements compared to calculated doses using a global 3%/3 mm gamma analysis. All five patient plans achieved the planning aim of delivering 12 Gy to at least 90% of the target. The mean dose in the PTV was 12.7 Gy. Mean lung dose was restricted to 8 Gy, and a dose reduction of up to 40% for organs such as the liver and kidneys proved feasible. The VMAT technique was found to be sensitive to patient setup errors particularly in the superior-inferior direction. The dose predicted by the planning system agreed with measured doses and had an average pass rate of 99.2% for all arcs. VMAT was found to be a viable treatment technique for total body irradiation., (© 2018 Genesis Cancer Care. Journal of Applied Clinical Medical Physics published by Wiley Periodicals, Inc. on behalf of American Association of Physicists in Medicine.)- Published
- 2018
- Full Text
- View/download PDF
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