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BackgroundAustralia has successfully controlled the COVID-19 pandemic. Similar to other high-income countries, Australia has extensively used telehealth services. Virtual health care, including telemedicine in combination with remote patient monitoring, has been implemented in certain settings as part of new models of care that are aimed at managing patients with COVID-19 outside the hospital setting. ObjectiveThis study aimed to describe the implementation of and early experience with virtual health care for community management of patients with COVID-19. MethodsThis observational cohort study was conducted with patients with COVID-19 who availed of a large Australian metropolitan health service with an established virtual health care program capable of monitoring patients remotely. We included patients with COVID-19 who received the health service, could self-isolate safely, did not require immediate admission to an in-patient setting, had no major active comorbid illness, and could be managed at home or at other suitable sites. Skin temperature, pulse rate, and blood oxygen saturation were remotely monitored. The primary outcome measures were care escalation rates, including emergency department presentation, and hospital admission. ResultsDuring March 11-29, 2020, a total of 162 of 173 (93.6%) patients with COVID-19 (median age 38 years, range 11-79 years), who were diagnosed locally, were enrolled in the virtual health care program. For 62 of 162 (38.3%) patients discharged during this period, the median length of stay was 8 (range 1-17) days. The peak of 100 prevalent patients equated to approximately 25 patients per registered nurse per shift. Patients were contacted a median of 16 (range 1-30) times during this period. Video consultations (n=1902, 66.3%) comprised most of the patient contacts, and 132 (81.5%) patients were monitored remotely. Care escalation rates were low, with an ambulance attendance rate of 3% (n=5), emergency department attendance rate of 2.5% (n=4), and hospital admission rate of 1.9% (n=3). No deaths were recorded. ConclusionsCommunity-based virtual health care is safe for managing most patients with COVID-19 and can be rapidly implemented in an urban Australian setting for pandemic management. Health services implementing virtual health care should anticipate challenges associated with rapid technology deployments and provide adequate support to resolve them, including strategies to support the use of health information technologies among consumers.

Objectives: To identify research and development priorities for virtual care following the coronavirus disease 2019 pandemic from the perspective of key stakeholders (patients, clinicians, informaticians and academics)., Design: Qualitative study using a modified nominal group technique., Setting: Online semi-structured interviews and workshops held in November 2022 and February 2023., Participants: Health workers involved in delivering virtual care in two metropolitan local health districts and one specialty statewide network, and people who had received care from these sites, were recruited using passive snowball sampling. Research and academic staff from a tertiary institution were also invited to participate., Main Outcome Measures: Priorities to support a translational research agenda for virtual care., Results: Twenty-five individuals participated including 18 innovation deliverers, two innovation recipients and five implementation facilitators. Stakeholders identified several key priorities for developing virtual care models and for sustaining and scaling virtual care services. These included demonstrating the economic and societal value of virtual care, developing a common framework to support evaluation and comparison of virtual care services, ensuring virtual care services integrate acute and primary care, and defining which models of care are most appropriate for virtual care delivery., Conclusion: As the health system recalibrates with the return of in-person care, there is a growing need to demonstrate the value of virtual care models to patients, the health system, and society at large. Demonstrating this value while also demonstrating improvements to health outcomes will future-proof virtual care, enabling it to be used to address broader challenges of health care delivery. In addition, sustaining virtual care will depend on robust operational structures and workforce training and education. As services evolve, research and development priorities must be revisited to ensure that translational research aligns with stakeholder interests., (© 2024 AMPCo Pty Ltd.)

Background: To address the rising demand for urgent care and decrease hospital use, health systems are implementing different strategies to support urgent care patients (i.e. patients who would have typically been treated in hospital) in the community, such as general practitioner (GP) advice lines. The aims of this study were to: identify the support and resources GPs need to manage urgent care patients in the community; assess the need for GP advice lines by primary care services in Australia; and identify the facilitators and barriers to adoption, and strategies to support the sustainability of GP advice lines., Methods: Qualitative study involving semi-structured interviews with GPs, hospital-based healthcare providers, consumers, and healthcare management, recruited via existing investigator networks and snowballing approach. The interviews were conducted between February and August 2023. Major themes were identified by an iterative and inductive thematic analysis., Results: We interviewed 16 participants (median age 50, IQR 38-59). Based on the aims of the study, three themes emerged: support and resources for GPs; motivation for GP advice lines; and factors influencing the uptake and sustainability of GP advice lines. Participants reported that better communication from hospital services with GPs is critical to ensure continuity of care between tertiary and primary settings. They also noted that GP advice lines can help increase capacity to manage urgent care patients in the community by providing timely decision-support to GPs. However, a reported barrier to the uptake and ongoing use of GP advice lines was the limited hours of the service. To sustain GP advice lines, participants highlighted a need to broaden the scope of the service beyond the pandemic, conduct rigorous evaluation on health outcomes, and further digitise the service so that a tiered level of support could be provided based on risk stratification., Conclusions: The benefits of GP advice lines are yet to be fully realised. With increasing technology sophistication, there remain opportunities to further digitise and optimise GP advice lines, whilst ensuring better integration within and across primary and tertiary care services. This is however dependent on continued financial and policy support from the government., Competing Interests: Declarations. Ethics approval and consent to participate: Ethics approval was received from Western Sydney Local Health District Human Research Ethics Committee (2022/ETH01690), in accordance with the Declaration of Helsinki and the National Statement on Ethical Conduct in Human Research. All participants provided informed consent. Consent for publication: Not applicable. Competing interests: The authors declare no competing interests., (© 2024. The Author(s).)

Objectives: Low back pain was the sixth most common reason for an ED visit in 2022-2023 in Australia, one-third of these patients were subsequently admitted to hospital. Therefore, we have assessed whether some patients could be diverted to alternate clinical pathways, via admission to a virtual hospital (rpavirtual), and be cared for remotely in their own homes., Methods: Ethics approval was granted for protocols X21-0278 & 2021/ETH10967 and X21-0094 & 2021/ETH00591. We conducted a mixed-method process evaluation, using the RE-AIM framework (reach, effectiveness, adoption, implementation and maintenance) to answer key questions regarding the Back@Home model of care., Results: This preliminary evaluation describes a cohort of the first 50 patients who received care between 13 February and 31 July 2023. The service had high levels of reach and adoption, very low levels of ED representation, and no AEs. Virtual care cost a median of AU$2215 (interquartile range = AU$1724-AU$2855) per admission. Patients admitted virtually had the same high satisfaction with care as traditionally admitted patients and reported less pain and better physical function., Conclusions: Preliminary findings suggest that this model of care is a safe, acceptable, and feasible alternative to hospitalisation for non-serious low back pain, in a select cohort of patients meeting inclusion criteria. Further data collection will inform whether Back@Home has had an impact on length of stay or traditional admission rates., (© 2024 The Author(s). Emergency Medicine Australasia published by John Wiley & Sons Australia, Ltd on behalf of Australasian College for Emergency Medicine.)

Background: Virtual care is increasingly incorporated within routine health care settings to improve patient experience and access to care. A patient's experience encompasses all the interactions an individual has with the health care system. This includes a greater emphasis on actively involving carers in the decisions and activities surrounding a patient's health care., Objective: This study aimed to investigate the variety of health care delivery challenges encountered in a virtual hospital and explore potential ways to improve the patient experience., Methods: Focusing on acute respiratory, this protocol outlines a mixed methods study exploring the patient experience of a virtual hospital in Australia, Royal Prince Alfred Virtual Hospital (rpavirtual). We will use an exploratory mixed methods approach comprising of secondary data analysis, observations, interviews, and co-design focus groups. Participants will include patients, their carers, and health care workers who are involved in the acute respiratory virtual hospital model of care. Together, the data will be triangulated to explore views and experiences of using this model of care, as well as co-designing recommendations for further improvement., Results: Findings from this study will identify current barriers and facilitators to implementing virtual care, such as work-as-done versus work-as-imagined, equity of care, the role of carers, and patient safety during virtual care. As of August 2024, a total of 25 participants have been interviewed., Conclusions: This protocol outlines a mixed methods case study on the acute respiratory model of care from Australia's first virtual hospital, rpavirtual. This study will collect the experiences of patients, carers, and health care workers to co-design a series of recommendations to improve the patient experience., International Registered Report Identifier (irrid): DERR1-10.2196/58683., (©Tim Michael Jackson, Kanesha Ward, Shannon Saad, Sarah J White, Shila Poudel, Freya Raffan, Sue Amanatidis, Jenna Bartyn, Owen Hutchings, Enrico Coiera, Kevin Chan, Annie Y S Lau. Originally published in JMIR Research Protocols (https://www.researchprotocols.org), 29.10.2024.)

Objective: This study aims to develop a measurement model for health technology acceptability using a theoretical framework and a range of validated instruments to measure user experience, acceptance, usability, health and digital health literacy., Methods: A cross-sectional evaluation study using a mixed-methods approach was conducted. An online survey was administered to patients who used a pulse oximeter in a virtual hospital setting during COVID-19. The model development was conducted in three steps: (1) exploratory factor analysis for conceptual model development, (2) measurement model confirmation through confirmatory factor analysis followed by structural equation modelling and (3) test of model external validity on four outcome measures. Finally, the different constructs of the developed model were used to compare two types of pulse oximeters by measuring the standardised scores., Results: Two hundred and two participants were included in the analysis, 37.6% were female and the average age was 53 years (SD:15.38). A four-construct model comprising Task Load, Affective Attitude, Self-Efficacy and Value of Use (0.636-0.857 factor loadings) with 12 items resulted from the exploratory factor analysis and yielded a good fit (RMSEA = .026). Health and digital health literacy did not affect the overall reliability of the model. Frustration, performance, trust and satisfaction were identified as outcomes of the model. No significant differences were observed in the acceptability constructs when comparing the two pulse oximeter devices., Conclusions: This article proposes a model for the measurement of the acceptability of health technologies used by patients in a remote care setting based on the use of a pulse oximeter in COVID-19 remote monitoring., Competing Interests: The authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article., (© The Author(s) 2024.)

This case study evaluated the effects of a health package (HP) of a light intensity individualised exercise program and advice on anxiety management and nutrition, on the physical and mental health of people with or without COVID-19, who were quarantined in hotels used as Special Health Accommodation and admitted to the Royal Prince Alfred Virtual Hospital, Sydney during the COVID-19 pandemic. After initial screening and consenting, participants completed three surveys: Depression, Anxiety, Stress Scale; Brief Fatigue Inventory; and the European Quality of Life 5-Dimensions 5-Levels, and were provided with the HP for the duration of their quarantine. The three surveys and a participant reported experience measure were completed prior to discharge. The HP for people in quarantine demonstrated stability of health outcomes and reduction in fatigue. Most participants reported that the HP helped them cope with isolation. Provision of a HP during quarantine could be useful to support physical and mental health.

Background and Aims: The experience of outpatient care may differ for select patient groups. This prospective study evaluates the adult patient experience of multidisciplinary outpatient cystic fibrosis (CF) care with videoconferencing through telehealth compared with face-to-face care the year prior., Methods: People with CF without a lung transplant were recruited. Patient-reported outcomes were obtained at commencement and 12 months into the study, reflecting both their face-to-face and telehealth through videoconferencing experience, respectively. Three patient cohorts were analysed: (i) participants with a regional residence, (ii) participants with a nonregional including metropolitan residence and (iii) participants with colonised multiresistant microbiota., Results: Seventy-four patients were enrolled in the study (mean age, 37 ± 11 years; 50% male; mean forced expiratory volume in the first second of expiration, 60% [standard deviation, 23]) between February 2020 and May 2021. No differences between models were observed in the participants' rating of the health care team, general and mental health rating, and their confidence in handling treatment plans at home. No between-group differences in the Cystic Fibrosis Questionnaire - Revised (CFQ-R) were observed. Travel duration and the cost of attending a clinic was significantly reduced, particularly for the regional group (4 h, AU$108 per clinic; P < 0.05). A total of 93% respondents preferred to continue with a hybrid approach., Conclusion: In this pilot study, participants' experience of care and quality of life were no different with face-to-face and virtual care between the groups. Time and cost-savings, particularly for patients living in regional areas, were observed. Most participants preferred to continue with a hybrid model for outpatient care., (© 2023 Royal Australasian College of Physicians.)

Background: Low back pain (LBP) was the fifth most common reason for an emergency department (ED) visit in 2020-2021 in Australia, with >145,000 presentations. A total of one-third of these patients were subsequently admitted to the hospital. The admitted patient care accounts for half of the total health care expenditure on LBP in Australia., Objective: The primary aim of the Back@Home study is to assess the effectiveness of a virtual hospital model of care to reduce the length of admission in people presenting to ED with musculoskeletal LBP. A secondary aim is to evaluate the acceptability and feasibility of the virtual hospital and our implementation strategy. We will also investigate rates of traditional hospital admission from the ED, representations and readmissions to the traditional hospital, demonstrate noninferiority of patient-reported outcomes, and assess cost-effectiveness of the new model., Methods: This is a hybrid effectiveness-implementation type-I study. To evaluate effectiveness, we plan to conduct an interrupted time-series study at 3 metropolitan hospitals in Sydney, New South Wales, Australia. Eligible patients will include those aged 16 years or older with a primary diagnosis of musculoskeletal LBP presenting to the ED. The implementation strategy includes clinician education using multimedia resources, staff champions, and an "audit and feedback" process. The implementation of "Back@Home" will be evaluated over 12 months and compared to a 48-month preimplementation period using monthly time-series trends in the average length of hospital stay as the primary outcome. We will construct a plot of the observed and expected lines of trend based on the preimplementation period. Linear segmented regression will identify changes in the level and slope of fitted lines, indicating immediate effects of the intervention, as well as effects over time. The data will be fully anonymized, with informed consent collected for patient-reported outcomes., Results: As of December 6, 2023, a total of 108 patients have been cared for through Back@Home. A total of 6 patients have completed semistructured interviews regarding their experience of virtual hospital care for nonserious back pain. All outcomes will be evaluated at 6 months (August 2023) and 12 months post implementation (February 2024)., Conclusions: This study will serve to inform ongoing care delivery and implementation strategies of a novel model of care. If found to be effective, it may be adopted by other health districts, adapting the model to their unique local contexts., International Registered Report Identifier (irrid): PRR1-10.2196/50146., (©Alla Melman, Min Jiat Teng, Danielle M Coombs, Qiang Li, Laurent Billot, Thomas Lung, Eileen Rogan, Mona Marabani, Owen Hutchings, Chris G Maher, Gustavo C Machado. Originally published in JMIR Research Protocols (https://www.researchprotocols.org), 22.02.2024.)

The pandemic necessitated the rapid design, development and implementation of technologies to allow remote monitoring of COVID-19 patients at home. This study aimed to explore the environmental barriers and facilitators to the successful development and implementation of virtual care technologies in this fast-paced context. We interviewed eight staff at a virtual hospital in Australia. We found key facilitators to be a learning organizational culture and strong leadership support. Barriers included interoperability issues, legislative constraints and unrealistic clinician expectations. Also, we found that a combination of hot-desking and the lack of single sign on in the virtual care environment, was reported to create additional work for staff. Overall, despite this unique context, our findings are consistent with prior work examining design and implementation of healthcare technologies. The fast pace and high-pressure environment appeared to magnify previously reported barriers, but also cultivate and foster a learning culture.

Background: As a response to the COVID-19 pandemic, the Sydney Local Health District in New South Wales, Australia, launched the rpavirtual program, the first full-scale virtual hospital in Australia, to remotely monitor and follow up stable patients with COVID-19. As part of the intervention, a pulse oximeter wearable device was delivered to patients to monitor their oxygen saturation levels, a critical indicator of COVID-19 patient deterioration. Understanding users' perceptions toward the device is fundamental to assessing its usability and acceptability and contributing to the effectiveness of the intervention, but no research to date has explored the user experience of the pulse oximeter for remote monitoring in this setting., Objective: This study aimed to explore the use, performance, and acceptability of the pulse oximeter by clinicians and patients in rpavirtual during COVID-19., Methods: Semistructured interviews and usability testing were conducted. Stable adult patients with COVID-19 (aged ≥18 years) who used the pulse oximeter and were monitored by rpavirtual, and rpavirtual clinicians monitoring these patients were interviewed. Clinicians could be nurses, doctors, or staff who were part of the team that assisted patients with the use of the pulse oximeter. Usability testing was conducted with patients who had the pulse oximeter when they were contacted. Interviews were coded using the Theoretical Framework of Acceptability. Usability testing was conducted using a think-aloud protocol. Data were collected until saturation was reached., Results: Twenty-one patients (average age 51, SD 13 years) and 15 clinicians (average age 41, SD 11 years) completed the interview. Eight patients (average age 51, SD 13 years) completed the usability testing. All participants liked the device and thought it was easy to use. They also had a good understanding of how to use the device and the device's purpose. Patients' age and device use-related characteristics (eg, the warmth of hands and hand steadiness) were identified by users as factors negatively impacting the accurate use of the pulse oximeter., Conclusions: Patients and clinicians had very positive perceptions of the pulse oximeter for COVID-19 remote monitoring, indicating high acceptability and usability of the device. However, factors that may impact the accuracy of the device should be considered when delivering interventions using the pulse oximeter for remote monitoring. Targeted instructions about the use of the device may be necessary for specific populations (eg, older people and patients unfamiliar with technology). Further research should focus on the integration of the pulse oximeter data into electronic medical records for real-time and secure patient monitoring., (©Andrea Torres-Robles, Karen Allison, Simon K Poon, Miranda Shaw, Owen Hutchings, Warwick J Britton, Andrew Wilson, Melissa Baysari. Originally published in the Journal of Medical Internet Research (https://www.jmir.org), 05.09.2023.)

Objectives: SARS-CoV-2 infection causes a spectrum of clinical disease presentation, ranging from asymptomatic to fatal. While neutralising antibody (NAb) responses correlate with protection against symptomatic and severe infection, the contribution of the T-cell response to disease resolution or progression is still unclear. As newly emerging variants of concern have the capacity to partially escape NAb responses, defining the contribution of individual T-cell subsets to disease outcome is imperative to inform the development of next-generation COVID-19 vaccines., Methods: Immunophenotyping of T-cell responses in unvaccinated individuals was performed, representing the full spectrum of COVID-19 clinical presentation. Computational and manual analyses were used to identify T-cell populations associated with distinct disease states., Results: Critical SARS-CoV-2 infection was characterised by an increase in activated and cytotoxic CD4 + lymphocytes (CTL). These CD4 + CTLs were largely absent in asymptomatic to severe disease states. In contrast, non-critical COVID-19 was associated with high frequencies of naïve T cells and lack of activation marker expression., Conclusion: Highly activated and cytotoxic CD4 + T-cell responses may contribute to cell-mediated host tissue damage and progression of COVID-19. Induction of these potentially detrimental T-cell responses should be considered when developing and implementing effective COVID-19 control strategies., Competing Interests: The authors declare no conflict of interest., (© 2023 The Authors. Clinical & Translational Immunology published by John Wiley & Sons Australia, Ltd on behalf of Australian and New Zealand Society for Immunology, Inc.)

Objectives: The COVID-19 Delta variant of concern continues to pose significant challenges to health systems globally, with increased transmissibility and different patient populations affected. In Sydney, a virtual model of care was implemented in response to the COVID-19 pandemic and Special Health Accommodation (SHA) was made available for community patients with COVID-19 who could not isolate at home or needed health support., Methods: This retrospective observational cohort study of all patients with COVID-19 Delta variant in SHA during the initial phases of the Delta variant outbreak in Sydney describes the demographic and clinical characteristics of patients with Delta variant COVID-19 and determines predictors of need for in-patient hospital admission., Results: Data from 794 patients were analysed. One hundred and fifty-seven patients (19.8%) were transferred to ED. Of those, 125 were admitted to an in-patient unit (admission rate from ED 79.6%), and of these 30 (24%) went to ICU and seven were intubated. Two patients died within the follow-up period. Age >40 years, obesity, and presence of fever (temperature >37.5°C), hypoxia (oxygen saturation <95%), tachycardia or gastrointestinal symptoms on initial assessment in SHA were independent predictors of in-patient admission with an AUROC of 0.78 (95% confidence interval 0.73, 0.82)., Conclusions: Initial symptoms and vital signs were just as predictive for short-term deterioration as age and pre-existing comorbidities and should be included in future risk prediction models for COVID-19. Based on this, we derive a proposed risk prediction score that incorporates these predictors with further validation required., (© 2022 Australasian College for Emergency Medicine.)

The COVID-19 pandemic is an unfolding crisis which is continually testing the resilience of healthcare organisations. In this context, a key requirement for executives, managers and frontline staff is continually adapting, learning and coping with complexity under pressure to deliver high quality and safe care. Sydney Local Health District has responded to the COVID-19 crisis, in part, through the pivoting of rpavirtual, a newly established virtual health service, to deliver an innovative model of care in a clinically rigorous and safe manner. Through reviewing the rapid evolution of rpavirtual's purpose, implementation challenges and impact, we investigate how it has displayed resilience and derive key lessons for health organisations., (© 2022 The Authors. The International Journal of Health Planning and Management published by John Wiley & Sons Ltd.)

Global control of COVID-19 requires broadly accessible vaccines that are effective against SARS-CoV-2 variants. In this report, we exploit the immunostimulatory properties of bacille Calmette-Guérin (BCG), the existing tuberculosis vaccine, to deliver a vaccination regimen with potent SARS-CoV-2-specific protective immunity. Combination of BCG with a stabilised, trimeric form of SARS-CoV-2 spike antigen promoted rapid development of virus-specific IgG antibodies in the blood of vaccinated mice, that was further augmented by the addition of alum. This vaccine formulation, BCG:CoVac, induced high-titre SARS-CoV-2 neutralising antibodies (NAbs) and Th1-biased cytokine release by vaccine-specific T cells, which correlated with the early emergence of T follicular helper cells in local lymph nodes and heightened levels of antigen-specific plasma B cells after vaccination. Vaccination of K18-hACE2 mice with a single dose of BCG:CoVac almost completely abrogated disease after SARS-CoV-2 challenge, with minimal inflammation and no detectable virus in the lungs of infected animals. Boosting BCG:CoVac-primed mice with a heterologous vaccine further increased SARS-CoV-2-specific antibody responses, which effectively neutralised B.1.1.7 and B.1.351 SARS-CoV-2 variants of concern. These findings demonstrate the potential for BCG-based vaccination to protect against major SARS-CoV-2 variants circulating globally., (© 2021. The Author(s).)

Background: The first COVID-19 cases were diagnosed in Australia on 25 January 2020. Initial epidiemiology showed that the majority of cases were in returned travellers from overseas. One aspect of Public Health response was to introduce compulsory 14 day quarantine for all travellers returning to New South Wales (NSW) by air or sea in Special Health Accommodation (SHA). We aim to outline the establishment of a specialised health quarantine accommodation service in the context of the COVID-19 pandemic, and describe the first month of COVID-19 screening., Methods: The SHA was established with a comprehensive governance structure, remote clinical management through Royal Prince Alfred Virtual Hospital (rpavirtual) and site management with health care workers, NSW Police and accommodation staff., Results: From 29 March to 29 April 2020, 373 returning travellers were admitted to the SHA from Sydney Airport. 88 (26.1%) of those swabbed were positive for SARS-CoV 2. The day of diagnosis of COVID-19 varied from Day 1 to Day 13, with 63.6% (n = 56) of these in the first week of quarantine. 50% of the people in the SHA were referred to rpavirtual for ongoing clinical management. Seven people required admission to hospital for ongoing clinical care., Conclusion: The Public Health response to COVID-19 in Australia included early and increased case detection through testing, tracing of contacts of confirmed cases, social distancing and prohibition of gatherings. In addition to these measures, the introduction of mandated quarantine for travellers to Australia was integral to the successful containment of COVID-19 in NSW and Australia through the prevention of transmission locally and interstate from returning travellers.