Wen Kwang Lim
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Wen Kwang Lim has a total of 89 co-authors. Here are the top co-authors by number of shared publications:
- Andrea Britta Maier
NUS Academy for Healthy Longevity, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
4 shared publications - Esmee Mariëlle Reijnierse
Department of Nutrition and Dietetics, Faculty of Health, Sport and Physical Activity, Amsterdam University of Applied Sciences, Amsterdam, the Netherlands
3 shared publications - Ross Bicknell
Department of Aged Care, Royal Melbourne Hospital, Parkville, Victoria, Australia
3 shared publications - Alison Margaret Hutchinson
Deakin University
2 shared publications - Irene Blackberry
La Trobe University
2 shared publications - Lihuan Guan
Department of Medicine and Aged Care, @AgeMelbourne, The Royal Melbourne Hospital, The University of Melbourne, Victoria, Australia
2 shared publications
Latest Publications
- Open Access
- 28 April 2026
- Published by MDPI AG in Geriatrics
- Vol. 11 (3) , 55
Patient-Centred Care for Older Patients Considering Surgery: An Evaluation of the Perioperative Care of Older Patients Service at an Australian Tertiary Hospital
Background/Objectives: As mounting numbers of older people consider surgery, the importance of aligning treatments with patient values and goals is paramount. This has led to the growth of POPS (Perioperative care of Older Patients) services internationally and across Australia. An observational pilot evaluation of the Melbourne Health POPS service was conducted throughout 2022, with the aims of describing the population, measuring patient-reported outcomes and comparing postoperative outcomes to a matched historical cohort. Methods: Data were sourced from clinical review, electronic medical records and health intelligence. Patients who pursued surgery were matched 2:1 with a 2020 control cohort on up to 10 characteristics ranked on clinical judgement. Patient-reported outcomes were collected at 3 months post-surgery or at the clinic in consenting participants. Results: There were 128 participants, of whom 64 (50%) pursued non-surgical management. Participants were older (median 79 [13] years), frail (median CFS 5 [2]), and multimorbid (median CCI 5 [2.25]). Despite increased perioperative risk amongst the POPS surgical group (ASA-4 23.4% vs. 5.5%, p < 0.001), increased incidence of postoperative delirium (15% vs. 5.8%, p = 0.042) and ICU admission (21.7% vs. 7.5%, p = 0.006) compared to the control group, median length of stay was similar (4.3 [6.7] vs. 4.3 [5.1] days, p = 0.537). Patient-reported outcomes were similar between surgical and non-surgical POPS groups (90.7% vs. 88.1% would make the same surgical decision, p = 0.697). Conclusions: Patients attending POPS were multimorbid with geriatric syndromes and elevated perioperative risk. A high proportion pursued non-operative care. Patient-reported feedback was high with low decisional regret.
- 28 April 2026
- Published by MDPI AG in Geriatrics
- Vol. 11 (3) , 55
Open AccessPatient-Centred Care for Older Patients Considering Surgery: An Evaluation of the Perioperative Care of Older Patients Service at an Australian Tertiary Hospital
Background/Objectives: As mounting numbers of older people consider surgery, the importance of aligning treatments with patient values and goals is paramount. This has led to the growth of POPS (Perioperative care of Older Patients) services internationally and across Australia. An observational pilot evaluation of the Melbourne Health POPS service was conducted throughout 2022, with the aims of describing the population, measuring patient-reported outcomes and comparing postoperative outcomes to a matched historical cohort. Methods: Data were sourced from clinical review, electronic medical records and health intelligence. Patients who pursued surgery were matched 2:1 with a 2020 control cohort on up to 10 characteristics ranked on clinical judgement. Patient-reported outcomes were collected at 3 months post-surgery or at the clinic in consenting participants. Results: There were 128 participants, of whom 64 (50%) pursued non-surgical management. Participants were older (median 79 [13] years), frail (median CFS 5 [2]), and multimorbid (median CCI 5 [2.25]). Despite increased perioperative risk amongst the POPS surgical group (ASA-4 23.4% vs. 5.5%, p < 0.001), increased incidence of postoperative delirium (15% vs. 5.8%, p = 0.042) and ICU admission (21.7% vs. 7.5%, p = 0.006) compared to the control group, median length of stay was similar (4.3 [6.7] vs. 4.3 [5.1] days, p = 0.537). Patient-reported outcomes were similar between surgical and non-surgical POPS groups (90.7% vs. 88.1% would make the same surgical decision, p = 0.697). Conclusions: Patients attending POPS were multimorbid with geriatric syndromes and elevated perioperative risk. A high proportion pursued non-operative care. Patient-reported feedback was high with low decisional regret.
- Open Access
- 2 July 2025
- Published by Springer Nature in BMC Geriatrics
- Vol. 25 (1) , 1-14
The IMPART (IMproving PAlliative care in Residential aged care using Telehealth) trial: a stepped-wedge cluster-randomised controlled trial protocol
The quality of palliative and end-of-life care (EOLC) in residential aged care (RACFs) is variable, and often suboptimal. The aim of IMPART is to improve palliative care in RACFs. IMPART provides online training and telehealth palliative-geriatric support to aged care staff and family physicians/general practitioners (GPs) to enable timely EOLC discussions, clinical support, and improve documentation of care preferences. This may lead to preference-based care, reduction of unplanned hospitalization, and improved quality of life and EOLC. This protocol describes a study to evaluate the effectiveness, cost, and implementation process of the IMPART intervention. This study is a pragmatic, stepped-wedge, cluster randomized controlled trial across 10 RACFs to evaluate the IMPART intervention. Clusters are randomly assigned to intervention or control groups. The IMPART intervention group 1) receives timely end-of-life support from specialist In-Reach teams using telehealth; 2) engages RACF staff and GPs in a Planning Ahead Team to reflect on current practices and co-design an Action Plan to improve EOLC planning and processes; 3) receives an online interactive, needs-based EOLC education program for staff and GPs working in RACFs. The control groups receive the IMPART intervention in subsequent waves. The primary outcome measure is reduction of unplanned hospital admissions and avoidable hospital transfers for residents at end-of-life when appropriate care in their RACF is possible and consistent with residents’ wishes. Secondary outcomes include reduction of emergency department presentations and length of stay of unplanned hospital admissions, and improvement in residents’ quality of life, comfort, satisfaction, and quality of EOLC. RACFs are high-mortality settings, yet the quality of palliative and EOLC varies across facilities. There is an urgent need for timely and integrated high-quality palliative care delivered in this context. Implementing IMPART, as a novel telehealth intervention, aims to address this need. This large multisite trial will provide robust evidence about the impact of the intervention (efficacy, cost-effectiveness, and process evaluation), to inform future roll-out and scale-up into the residential aged care sector. anzctr.org.au; ACTRN12622000760774. Prospectively registered on 27/05/2022.
- 2 July 2025
- Published by Springer Nature in BMC Geriatrics
- Vol. 25 (1) , 1-14
Open AccessThe IMPART (IMproving PAlliative care in Residential aged care using Telehealth) trial: a stepped-wedge cluster-randomised controlled trial protocol
The quality of palliative and end-of-life care (EOLC) in residential aged care (RACFs) is variable, and often suboptimal. The aim of IMPART is to improve palliative care in RACFs. IMPART provides online training and telehealth palliative-geriatric support to aged care staff and family physicians/general practitioners (GPs) to enable timely EOLC discussions, clinical support, and improve documentation of care preferences. This may lead to preference-based care, reduction of unplanned hospitalization, and improved quality of life and EOLC. This protocol describes a study to evaluate the effectiveness, cost, and implementation process of the IMPART intervention. This study is a pragmatic, stepped-wedge, cluster randomized controlled trial across 10 RACFs to evaluate the IMPART intervention. Clusters are randomly assigned to intervention or control groups. The IMPART intervention group 1) receives timely end-of-life support from specialist In-Reach teams using telehealth; 2) engages RACF staff and GPs in a Planning Ahead Team to reflect on current practices and co-design an Action Plan to improve EOLC planning and processes; 3) receives an online interactive, needs-based EOLC education program for staff and GPs working in RACFs. The control groups receive the IMPART intervention in subsequent waves. The primary outcome measure is reduction of unplanned hospital admissions and avoidable hospital transfers for residents at end-of-life when appropriate care in their RACF is possible and consistent with residents’ wishes. Secondary outcomes include reduction of emergency department presentations and length of stay of unplanned hospital admissions, and improvement in residents’ quality of life, comfort, satisfaction, and quality of EOLC. RACFs are high-mortality settings, yet the quality of palliative and EOLC varies across facilities. There is an urgent need for timely and integrated high-quality palliative care delivered in this context. Implementing IMPART, as a novel telehealth intervention, aims to address this need. This large multisite trial will provide robust evidence about the impact of the intervention (efficacy, cost-effectiveness, and process evaluation), to inform future roll-out and scale-up into the residential aged care sector. anzctr.org.au; ACTRN12622000760774. Prospectively registered on 27/05/2022.
- Open Access
Validation of a Multi-Channel Ambient Sensor to Measure Vital Signs in Patients Within the Ward and at Home
Hospitalised, unwell patients have vital signs such as heart rate (HR), oxygen saturation (SpO2) and temperature measured multiple times a day to detect clinical deterioration and monitor health trajectories. Advancements in contact-free (ambient) sensors (AS) to measure vital signs can help mitigate risks due to skin injury and infection transmission seen in conventional hospital equipment. This prospective, observational clinical study aims to validate vital sign measurements from a multi-channel AS compared to conventional equipment in three cohorts: patients in a hospital ward, patients at home within a Hospital-at-Home service, and healthy volunteers. Data analysis of 571 paired measurements from 29 participants indicates that heart rate measurements via AS were accurate, though they lacked precision, with the clinical agreement range between 6.38 and 6.49 beats per minute. Temperature and oxygen saturation measurements showed less agreement when compared with the reference standard. In conclusion, ambient sensors show promising utility in measuring vital signs, with this study amongst the first of its kind to utilise this in measuring vital signs in hospitalised patient cohorts in both ward and home environments.
Open AccessValidation of a Multi-Channel Ambient Sensor to Measure Vital Signs in Patients Within the Ward and at Home
Hospitalised, unwell patients have vital signs such as heart rate (HR), oxygen saturation (SpO2) and temperature measured multiple times a day to detect clinical deterioration and monitor health trajectories. Advancements in contact-free (ambient) sensors (AS) to measure vital signs can help mitigate risks due to skin injury and infection transmission seen in conventional hospital equipment. This prospective, observational clinical study aims to validate vital sign measurements from a multi-channel AS compared to conventional equipment in three cohorts: patients in a hospital ward, patients at home within a Hospital-at-Home service, and healthy volunteers. Data analysis of 571 paired measurements from 29 participants indicates that heart rate measurements via AS were accurate, though they lacked precision, with the clinical agreement range between 6.38 and 6.49 beats per minute. Temperature and oxygen saturation measurements showed less agreement when compared with the reference standard. In conclusion, ambient sensors show promising utility in measuring vital signs, with this study amongst the first of its kind to utilise this in measuring vital signs in hospitalised patient cohorts in both ward and home environments.
- Open Access
- 24 February 2022
- Published by Elsevier in Mechanisms of Ageing and Development
- Vol. 203, 111648
Association of a modified laboratory frailty index with adverse outcomes in geriatric rehabilitation inpatients: RESORT
- 24 February 2022
- Published by Elsevier in Mechanisms of Ageing and Development
- Vol. 203, 111648
Open AccessAssociation of a modified laboratory frailty index with adverse outcomes in geriatric rehabilitation inpatients: RESORT
- Open Access
- 1 December 2021
- Published by Elsevier in Experimental Gerontology
- Vol. 156, 111597
Unresolved inflammation during hospitalization is associated with post-discharge institutionalization and mortality in geriatric rehabilitation inpatients: The RESORT cohort
- 1 December 2021
- Published by Elsevier in Experimental Gerontology
- Vol. 156, 111597
Open AccessUnresolved inflammation during hospitalization is associated with post-discharge institutionalization and mortality in geriatric rehabilitation inpatients: The RESORT cohort
- Open Access
- 1 October 2021
- Published by Elsevier in Experimental Gerontology
- Vol. 154, 111524
Determinants of instrumented sedentary and physical activity behavior in geriatric rehabilitation inpatients: RESORT
- 1 October 2021
- Published by Elsevier in Experimental Gerontology
- Vol. 154, 111524
Open AccessDeterminants of instrumented sedentary and physical activity behavior in geriatric rehabilitation inpatients: RESORT
- 10 May 2021
- Published by Wiley in Internal Medicine Journal
- Vol. 52 (5) , 776-784
Healthcare providers' experiences with advance care planning and goals of patient care medical treatment orders in residential aged care facilities: an explanatory descriptive study
Background: Advance care planning (ACP) is a process by which people communicate their healthcare preferences and values, planning for a time when they are unable to voice them. Within residential aged care facilities (RACF), both the completion and the clarity of ACP documents are varied and, internationally, medical treatment orders have been used to address these issues.Aims: In this study, goals of patient care (GOPC) medical treatment orders were introduced alongside usual ACP in three RACF to improve healthcare decision‐making for residents. This study explored the experiences of RACF healthcare providers with ACP and GOPC medical treatment orders.Methods: The study used an explanatory descriptive approach. Within three RACF where the GOPC medical treatment orders had been introduced, focus groups and interviews with healthcare providers were performed. The transcribed interviews were analysed thematically.Results: Healthcare providers not only reported support for ACP and GOPC but also discussed many problematic issues. Analysis of the data identified four main themes: enablers, barriers, resident autonomy and advance documentation (ACP and GOPC).Conclusion: Healthcare providers identified ACP and GOPC as positive tools for assisting with medical decision‐making for residents. Although barriers exist in completion and activation of plans, healthcare providers described them as progressing resident‐centred care. Willingness to follow ACP instructions was reported to be reduced by lack of trust by clinicians. Families were also reported to change their views from those documented in family‐completed ACP, attributed to poor understanding of their purpose. Participants reported that GOPC led to clearer documentation of residents' medical treatment plans rather than relying on ACP documents alone.
- 10 May 2021
- Published by Wiley in Internal Medicine Journal
- Vol. 52 (5) , 776-784
Healthcare providers' experiences with advance care planning and goals of patient care medical treatment orders in residential aged care facilities: an explanatory descriptive study
Background: Advance care planning (ACP) is a process by which people communicate their healthcare preferences and values, planning for a time when they are unable to voice them. Within residential aged care facilities (RACF), both the completion and the clarity of ACP documents are varied and, internationally, medical treatment orders have been used to address these issues.Aims: In this study, goals of patient care (GOPC) medical treatment orders were introduced alongside usual ACP in three RACF to improve healthcare decision‐making for residents. This study explored the experiences of RACF healthcare providers with ACP and GOPC medical treatment orders.Methods: The study used an explanatory descriptive approach. Within three RACF where the GOPC medical treatment orders had been introduced, focus groups and interviews with healthcare providers were performed. The transcribed interviews were analysed thematically.Results: Healthcare providers not only reported support for ACP and GOPC but also discussed many problematic issues. Analysis of the data identified four main themes: enablers, barriers, resident autonomy and advance documentation (ACP and GOPC).Conclusion: Healthcare providers identified ACP and GOPC as positive tools for assisting with medical decision‐making for residents. Although barriers exist in completion and activation of plans, healthcare providers described them as progressing resident‐centred care. Willingness to follow ACP instructions was reported to be reduced by lack of trust by clinicians. Families were also reported to change their views from those documented in family‐completed ACP, attributed to poor understanding of their purpose. Participants reported that GOPC led to clearer documentation of residents' medical treatment plans rather than relying on ACP documents alone.
- Open Access
- 22 January 2021
- Published by Rural and Remote Health in Rural and Remote Health
- Vol. 21 (1) , 5983
Women, clinician and IT staff perspectives on telehealth for enhanced gestational diabetes mellitus management in an Australian rural/regional setting
RRH: Rural and Remote Health. Published article number: 5983 - Women, clinician and IT staff perspectives on telehealth for enhanced gestational diabetes mellitus management in an Australian rural/regional setting
- 22 January 2021
- Published by Rural and Remote Health in Rural and Remote Health
- Vol. 21 (1) , 5983
Open AccessWomen, clinician and IT staff perspectives on telehealth for enhanced gestational diabetes mellitus management in an Australian rural/regional setting
RRH: Rural and Remote Health. Published article number: 5983 - Women, clinician and IT staff perspectives on telehealth for enhanced gestational diabetes mellitus management in an Australian rural/regional setting
- Open Access
- 7 October 2020
- Published by Springer Nature in Diagnostic and Prognostic Research
- Vol. 4 (1) , 1-8
A study protocol for the development of a multivariable model predicting 6- and 12-month mortality for people with dementia living in residential aged care facilities (RACFs) in Australia
Background: For residential aged care facility (RACF) residents with dementia, lack of prognostic guidance presents a significant challenge for end of life care planning. In an attempt to address this issue, models have been developed to assess mortality risk for people with advanced dementia, predominantly using long-term care minimum data set (MDS) information from the USA. A limitation of these models is that the information contained within the MDS used for model development was not collected for the purpose of identifying prognostic factors. The models developed using MDS data have had relatively modest ability to discriminate mortality risk and are difficult to apply outside the MDS setting. This study will aim to develop a model to estimate 6- and 12-month mortality risk for people with dementia from prognostic indicators recorded during usual clinical care provided in RACFs in Australia. Methods: A secondary analysis will be conducted for a cohort of people with dementia from RACFs participating in a cluster-randomized trial of a palliative care education intervention (IMPETUS-D). Ten prognostic indicator variables were identified based on a literature review of clinical features associated with increased mortality for people with dementia living in RACFs. Variables will be extracted from RACF files at baseline and mortality measured at 6 and 12 months after baseline data collection. A multivariable logistic regression model will be developed for 6- and 12-month mortality outcome measures using backwards elimination with a fractional polynomial approach for continuous variables. Internal validation will be undertaken using bootstrapping methods. Discrimination of the model for 6- and 12-month mortality will be presented as receiver operating curves with c statistics. Calibration curves will be presented comparing observed and predicted event rates for each decile of risk as well as flexible calibration curves derived using loess-based functions. Discussion: The model developed in this study aims to improve clinical assessment of mortality risk for people with dementia living in RACFs in Australia. Further external validation in different populations will be required before the model could be developed into a tool to assist with clinical decision-making in the future.
- 7 October 2020
- Published by Springer Nature in Diagnostic and Prognostic Research
- Vol. 4 (1) , 1-8
Open AccessA study protocol for the development of a multivariable model predicting 6- and 12-month mortality for people with dementia living in residential aged care facilities (RACFs) in Australia
Background: For residential aged care facility (RACF) residents with dementia, lack of prognostic guidance presents a significant challenge for end of life care planning. In an attempt to address this issue, models have been developed to assess mortality risk for people with advanced dementia, predominantly using long-term care minimum data set (MDS) information from the USA. A limitation of these models is that the information contained within the MDS used for model development was not collected for the purpose of identifying prognostic factors. The models developed using MDS data have had relatively modest ability to discriminate mortality risk and are difficult to apply outside the MDS setting. This study will aim to develop a model to estimate 6- and 12-month mortality risk for people with dementia from prognostic indicators recorded during usual clinical care provided in RACFs in Australia. Methods: A secondary analysis will be conducted for a cohort of people with dementia from RACFs participating in a cluster-randomized trial of a palliative care education intervention (IMPETUS-D). Ten prognostic indicator variables were identified based on a literature review of clinical features associated with increased mortality for people with dementia living in RACFs. Variables will be extracted from RACF files at baseline and mortality measured at 6 and 12 months after baseline data collection. A multivariable logistic regression model will be developed for 6- and 12-month mortality outcome measures using backwards elimination with a fractional polynomial approach for continuous variables. Internal validation will be undertaken using bootstrapping methods. Discrimination of the model for 6- and 12-month mortality will be presented as receiver operating curves with c statistics. Calibration curves will be presented comparing observed and predicted event rates for each decile of risk as well as flexible calibration curves derived using loess-based functions. Discussion: The model developed in this study aims to improve clinical assessment of mortality risk for people with dementia living in RACFs in Australia. Further external validation in different populations will be required before the model could be developed into a tool to assist with clinical decision-making in the future.
- Open Access
- 23 October 2019
- Published by Springer Nature in BMC Palliative Care
- Vol. 18 (1) , 1-11
A screen-based simulation training program to improve palliative care of people with advanced dementia living in residential aged care facilities and reduce hospital transfers: study protocol for the IMproving Palliative care Education and Training Using Simulation in Dementia (IMPETUS-D) cluster randomised controlled trial
Background: Many people with advanced dementia live in residential aged care homes. Care home staff need the knowledge and skills to provide high-quality end-of-life (EOL) dementia care. However, several studies have found EOL dementia care to be suboptimal, and care staff have reported they would benefit from training in palliative care and dementia. Simulation offers an immersive learning environment and has been shown to improve learners’ knowledge and skills. However, there is little research on simulation training for residential care staff. This article presents the development and evaluation protocol of IMproving Palliative care Education and Training Using Simulation in Dementia (IMPETUS-D) - a screen-based simulation training program on palliative dementia care, targeted at residential care staff. IMPETUS-D aims to improve the quality of palliative care provided to people living with dementia in residential care homes, including avoiding unnecessary transfers to hospital. Methods: A cluster RCT will assess the effect of IMPETUS-D. Twenty-four care homes (clusters) in three Australian cities will be randomised to receive either the IMPETUS-D intervention or usual training opportunities (control). The primary outcome is to reduce transfers to hospital and deaths in hospital by 20% over 6-months in the intervention compared to the control group. Secondary outcomes include uptake of goals of care plans over 6 and 12 months, change in staff knowledge and attitudes towards palliative dementia care over 6 months, change in transfers to hospital and deaths in hospital over 12 months. For the primary analysis logistic regression models will be used with standard errors weighted by the cluster effects. A mixed methods process evaluation will be conducted alongside the cluster RCT to assess the mechanisms of impact, the implementation processes and contextual factors that may influence the delivery and effects of the intervention. Discussion: In Australia, the need for high-quality advanced dementia care delivered in residential aged care is growing. This study will assess the effect of IMPETUS-D a new simulation-based training program on dementia palliative and EOL care. This large multisite trial will provide robust evidence about the impact of the intervention. If successful, it will be distributed to the broader residential care sector. Trial registration: ANZCTR, ACTRN12618002012257. Registered 14 December 2018.
- 23 October 2019
- Published by Springer Nature in BMC Palliative Care
- Vol. 18 (1) , 1-11
Open AccessA screen-based simulation training program to improve palliative care of people with advanced dementia living in residential aged care facilities and reduce hospital transfers: study protocol for the IMproving Palliative care Education and Training Using Simulation in Dementia (IMPETUS-D) cluster randomised controlled trial
Background: Many people with advanced dementia live in residential aged care homes. Care home staff need the knowledge and skills to provide high-quality end-of-life (EOL) dementia care. However, several studies have found EOL dementia care to be suboptimal, and care staff have reported they would benefit from training in palliative care and dementia. Simulation offers an immersive learning environment and has been shown to improve learners’ knowledge and skills. However, there is little research on simulation training for residential care staff. This article presents the development and evaluation protocol of IMproving Palliative care Education and Training Using Simulation in Dementia (IMPETUS-D) - a screen-based simulation training program on palliative dementia care, targeted at residential care staff. IMPETUS-D aims to improve the quality of palliative care provided to people living with dementia in residential care homes, including avoiding unnecessary transfers to hospital. Methods: A cluster RCT will assess the effect of IMPETUS-D. Twenty-four care homes (clusters) in three Australian cities will be randomised to receive either the IMPETUS-D intervention or usual training opportunities (control). The primary outcome is to reduce transfers to hospital and deaths in hospital by 20% over 6-months in the intervention compared to the control group. Secondary outcomes include uptake of goals of care plans over 6 and 12 months, change in staff knowledge and attitudes towards palliative dementia care over 6 months, change in transfers to hospital and deaths in hospital over 12 months. For the primary analysis logistic regression models will be used with standard errors weighted by the cluster effects. A mixed methods process evaluation will be conducted alongside the cluster RCT to assess the mechanisms of impact, the implementation processes and contextual factors that may influence the delivery and effects of the intervention. Discussion: In Australia, the need for high-quality advanced dementia care delivered in residential aged care is growing. This study will assess the effect of IMPETUS-D a new simulation-based training program on dementia palliative and EOL care. This large multisite trial will provide robust evidence about the impact of the intervention. If successful, it will be distributed to the broader residential care sector. Trial registration: ANZCTR, ACTRN12618002012257. Registered 14 December 2018.