Namaste Care in nursing care homes for people with advanced dementia: protocol for a feasibility randomised controlled trial

Effects of multisensory environment/stimulation therapy on adults with cognitive impairment and/or special needs: A systematic review and meta-analysis

AIM

This review aimed to evaluate the effects of multisensory environments/stimulation (MSE/MSS) therapy, on the behavior and psychological symptoms in adults with cognitive impairment and/or special needs.

METHODS

Online database searches were performed to identify studies reporting on the effects of MSS/MSE therapy in adults (>18 years). Data were extracted for the following investigated outcomes including anxiety, depression, mood, behavioral attributes, biomedical parameters, cognition, motor skills, quality of life (QoL), pain, and end of life quality. Two reciprocally blinded investigators extracted the data. Inter-investigator reliability (𝝹) was calculated. A meta-analysis and a qualitative analysis were performed on the information extracted.

RESULTS

Thirty-six studies were included for data extraction and analysis. Meta-analysis of the included studies revealed a significant improvement with the MSE/MSS therapy, for agitation (p = .018), anxiety (p = .023), cognition (p < .001), and depression (p < .001). MSS/MSE therapy demonstrated a tendency for the improvement of the QoL in adults (p = .05).

CONCLUSION

MSE/MSS therapies are beneficial in cognitively impaired adults and improve their anxiety, depression, cognitive and other behavioral attributes such as agitative behaviors. Promoting these therapies in geriatric care may help to improve/reduce the challenging/care-resistant behaviors in adults and facilitate effective provision of the necessary care.

Palliative Care Interventions for Persons With Neurodegenerative Disease: A Scoping Review of Clinical Trial Study Design Features

Background: Within palliative care research, best practice guidelines to conduct scientifically rigorous clinical trials for neurodegenerative diseases are underexplored. This patient population experiences unique challenges, including fluctuations in cognitive capacity, care partner (CP) and proxy involvement, and high adverse events (AEs), that necessitate special consideration when designing clinical trials. Objective: The objective of this study was to describe and identify clinical trial design features that have been documented in studies involving a neuropalliative intervention for persons with neurodegenerative diseases, highlighting features that have been adapted for this unique patient population. Design: We conducted a scoping review of clinical trials with a neuropalliative intervention for persons with neurodegenerative disease. We searched Cochrane, Web of Science, EMBASE, Scopus, and PubMed (MEDLINE) databases for articles published in English between 1950 and 2023. Two reviewers screened, extracted, and synthesized data from the included articles. A third reviewer adjudicated instances of conflict. The data were analyzed using a thematic framework approach. Results: Of 1025 texts, 44 articles were included. Seven study design features were analyzed: (1) consent, (2) proxies and CPs, (3) recruitment strategies, (4) retention strategies, (5) choice of comparator, (6) AEs, and (7) internal validity. This scoping review found disparities in study design features around structured consent, proxies and CPs, comparators, and AEs. Conclusions: To date, neuropalliative care clinical trials have had varied study designs and the majority of research has focused on dementia. Research guideline development for high-quality neuropalliative care clinical trials is greatly needed across the range of neurodegenerative diseases. To increase the scientific rigor of clinical trials and neuropalliative care, we recommend a standardized capacity assessment for consent, defining conditions for the CP, proxy, and AEs, systematizing appropriate comparators, and outlining preemptive recruitment and retention strategies to address the broader unpredictable challenges of palliative care research.

Impact of the COVID-19 Pandemic on the Perceived Quality of Palliative Care in Nursing Homes

The Nursing Homes End-of-life Programme (NUHELP) was developed in 2017 and is based on quality standards of palliative care, but it was not implemented due to the outbreak of the COVID-19 pandemic.

OBJECTIVES

To describe perceptions among staff at nursing homes and primary health care (PHC) centres regarding the relevance, feasibility, and degree of achievement of quality standards for palliative care in nursing homes and to determine the differences in these perceptions before and after the pandemic.

METHODOLOGY

Cross-sectional descriptive study. Professionals at eight nursing homes and related PHC centres who participated in NUHELP development assessed 42 palliative care standards at two time points (2018 and 2022). The Mann-Whitney U test was applied to analyse differences in the scores between these two times and between perceptions at nursing homes and at PHC centres.

RESULTS

The study population consisted of 58 professionals in 2018 and 50 in 2022. The standard regarding communication with persons affected by the death of a family member was considered less relevant (p = 0.05), and that concerning the culturally sensitive and dignified treatment of the body was less fully achieved (p = 0.03) in 2022 than in 2018. Social support (p = 0.04), sharing information among the care team (p = 0.04), patient participation (p = 0.04) and information about the treatment provided (p = 0.03) were all more poorly achieved in 2022 than in 2018. The perceptions of nursing home and PHC workers differed in several respects.

CONCLUSIONS

Professional intercommunication and social support should be reinforced, and residents should be more actively involved in decision-making.

Inadequate human resources, equipment and training: A qualitative assessment of the objectives of the NUHELP end-of-life care programme in the context of the COVID-19 pandemic

BACKGROUND

The COVID-19 pandemic had a particularly severe impact on nursing homes, exposing numerous pre-existing deficiencies in end-of-life care.

AIM

To describe how the COVID-19 pandemic affected nursing home and primary care professionals' attempts to achieve the objectives of a pre-existing end-of-life programme and to explore their personal experiences of end-of-life care in these facilities.

DESIGN

A qualitative descriptive study using thematic analysis.

SETTING/PARTICIPANTS

Twenty semi-structured interviews were conducted from March to November 2020 with professionals from nursing homes and primary care facilities who participated in the development of the NUHELP programme.

RESULTS

Six main themes were identified: (1) Comprehensive assessments of residents at the homes were not conducted due to excessive workload and high staff turnover. (2) New technologies and changes to professional roles were used to meet relatives' needs for information. Residents only received information when they requested it. (3) Advance care planning was not carried out and was limited to potential hospital transfer. (4) Arrangements were made to allow relatives to spend time with residents during their final moments, but complicated grief among relatives and professionals is anticipated. (5) Management of complexity varied depending on the degree of coordination with primary care facilities. (6) Nursing home professionals felt abandoned, with a lack of human resources, equipment and training.

CONCLUSIONS

The pandemic cast light on existing shortcomings in nursing homes in terms of comprehensive assessments, communication, decision making, grief management and palliative care complexity. Nursing homes need more human, material and training resources, as well as improved coordination with the public healthcare system.

Spiritual Care in Advanced Dementia from the Perspective of Health Providers: A Qualitative Systematic Review

Background

Worldwide, 47 million people suffer from dementia. Despite recognizing the importance of spirituality within dementia care, it is still unclear how this should be integrated into dementia services.

Aim

To explore the perspective of health professionals regarding the spiritual care of people with advanced dementia.

Methods

A qualitative systematic review was performed following the Enhancing Transparency in Reporting the Synthesis of Qualitative Research guidelines for the study design. The inclusion criteria included original articles published from January 2008 to March 2019, using either qualitative or mixed methods. The quality of the articles included was evaluated using the consolidated criteria for reporting qualitative research, Standards for Reporting Qualitative Research, and the Critical Appraisal Skills Programme. Synthesis of findings was performed using thematic analysis.

Results

Twelve studies were included in the review. Seventeen categories were identified, grouped into four themes: (1) the perception of spirituality, including the failure to address the same, (2) the spiritual needs of people with advanced dementia, (3) spiritual needs from health care providers, and (4) addressing spirituality, with the following categories: music, significant activities, among others.

Conclusions

Spirituality is not formally addressed in this population, and professionals do not feel confident enough to be able to integrate spirituality in their care. It is necessary to identify and record the spiritual needs of people with advanced dementia, as well as to design specific care programs.

Defining end of life in dementia: A systematic review

BACKGROUND

Dementia is a life-limiting condition that affects 50 million people globally. Existing definitions of end of life do not account for the uncertain trajectory of dementia. People living with dementia may live in the advanced stage for several years, or even die before they reach the advanced stage of dementia.

AIM

To identify how end of life in people with dementia is measured and conceptualised, and to identify the factors that contribute towards identifying end of life in people with dementia.

DESIGN

Systematic review and narrative synthesis.

DATA SOURCES

Electronic databases MEDLINE, EMBASE, PsychInfo and CINAHL, were searched in April 2020. Eligible studies included adults with any dementia diagnosis, family carers and healthcare professionals caring for people with dementia and a definition for end of life in dementia.

RESULTS

Thirty-three studies met the inclusion criteria. Various cut-off scores from validated tools, estimated prognoses and descriptive definitions were used to define end of life. Most studies used single measure tools which focused on cognition or function. There was no pattern across care settings in how end of life was defined. Healthcare professionals and family carers had difficulty recognising when people with dementia were approaching the end of life.

CONCLUSION

End-of-life care and research that focuses only on cognitive and functional decline may fail to recognise the complexities and unmet needs relevant to dementia and end of life. Research and clinical practice should adopt a needs-based approach for people with dementia and not define end of life by stage of disease.

Preliminary Effect and Acceptability of an Intervention to Improve End-of-Life Care in Long-Term-Care Facilities: A Feasibility Study

The number of deaths of older adults in long-term care settings will increase with the aging population. Nurses and care workers in these settings face various challenges in providing end-of-life care, and interventions for quality end-of-life care may be useful. This feasibility study aims to explore the preliminary effect and acceptability of an intervention named the EOL Care Tool to improve end-of-life care in long-term-care facilities. We conducted a single-arm quasi-experimental study using mixed methods. This tool consisted of multiple components: professionalized lectures, newly developed structured documents, regular conferences regarding end-of-life care, and educational support from administrators. Twenty-four nurses and fifty-five care workers employed in a long-term care facility participated. For nurses, improvement in attitudes toward end-of-life care (p < 0.05) and interdisciplinary collaboration (p < 0.05) were shown quantitatively. Regarding acceptability, nurses and care workers evaluated the tool positively except for the difficulty of using the new documents. However, qualitative results showed that care workers felt the reluctance to address the work regarding end-of-life care. Therefore, a good preliminary effect and acceptability for nurses were indicated, while acceptability for care workers was only moderate. Revision to address the mentioned issues and evaluation of the revised tool with a more robust research design are required.

NUrsing Homes End of Life care Program (NUHELP): developing a complex intervention

BACKGROUND

Nursing homes are likely to become increasingly important as end-of-life care facilities. Previous studies indicate that individuals residing in these facilities have a high prevalence of end-of-life symptoms and a significant need for palliative care. The aim of this study was to develop an end-of-life care program for nursing homes in Spain based on previous models yet adapted to the specific context and the needs of staff in nursing homes in the country.

METHODS

A descriptive study of a complex intervention procedure was developed. The study consisted of three phases. The first phase was a prospective study assessing self-efficacy in palliative care (using the SEPC scale) and attitudes towards end-of-life care (using the FATCOD-B scale) among nursing home staff before and after the completion of a basic palliative care training program. In the second phase, objectives were selected using the Delphi consensus technique, where nursing home and primary care professionals assessed the relevance, feasibility, and level of attainment of 42 quality standards. In phase 3, interventions were selected for these objectives through two focus group sessions involving nursing home, primary care, and palliative care professionals.

RESULTS

As a result of the training, an improvement in self-efficacy and attitudes towards end-of-life care was observed. In phase 2, 14 standards were selected and grouped into 5 objectives: to conduct a comprehensive assessment and develop a personalized care plan adapted to the palliative needs detected; to provide information in a clear and accessible way; to request and record advance care directives; to provide early care with respect to loss and grief; to refer patients to a specialized palliative care unit if appropriate, depending on the complexity of the palliative care required. Based on these objectives, the participants in the focus group sessions designed the 22 interventions that make up the program.

CONCLUSIONS

The objectives and interventions of the NUHELP program constitute an end-of-life care program which can be implemented in nursing homes to improve the quality of end-of-life care in these facilities by modifying their clinical practice, organization, and relationship with the health system as well as serving as an example of an effective health intervention program.

What should we report? Lessons learnt from the development and implementation of serious adverse event reporting procedures in non-pharmacological trials in palliative care

Background/aims

Serious adverse event reporting guidelines have largely been developed for pharmaceutical trials. There is evidence that serious adverse events, such as psychological distress, can also occur in non-pharmaceutical trials. Managing serious adverse event reporting and monitoring in palliative care non-pharmaceutical trials can be particularly challenging. This is because patients living with advanced malignant or non-malignant disease have a high risk of hospitalisation and/or death as a result of progression of their disease rather than due to the trial intervention or procedures. This paper presents a number of recommendations for managing serious adverse event reporting that are drawn from two palliative care non-pharmacological trials.

Methods

The recommendations were iteratively developed across a number of exemplar trials. This included examining national and international safety reporting guidance, reviewing serious adverse event reporting procedures from other pharmacological and non-pharmacological trials, a review of the literature and collaboration between the ACTION study team and Data Safety Monitoring Committee. These two groups included expertise in oncology, palliative care, statistics and medical ethics and this collaboration led to the development of serious adverse event reporting procedures.

Results

The recommendations included; allowing adequate time at the study planning stage to develop serious adverse event reporting procedures, especially in multi-national studies or research naïve settings; reviewing the level of trial oversight required; defining what a serious adverse event is in your trial based on your study population; development and implementation of standard operating procedures and training; refining the reporting procedures during the trial if necessary and publishing serious adverse events in findings papers.

Conclusions

There is a need for researchers to share their experiences of managing this challenging aspect of trial conduct. This will ensure that the processes for managing serious adverse event reporting are continually refined and improved so optimising patient safety.

Trial registration

ACTION trial registration number: ISRCTN63110516 (date of registration 03/10/2014).

Namaste trial registration number: ISRCTN14948133 (date of registration 04/10/2017).

Supplementary Information

The online version contains supplementary material available at 10.1186/s12904-021-00714-5.

Nonparametric time series summary statistics for high-frequency accelerometry data from individuals with advanced dementia

Accelerometry data has been widely used to measure activity and the circadian rhythm of individuals across the health sciences, in particular with people with advanced dementia. Modern accelerometers can record continuous observations on a single individual for several days at a sampling frequency of the order of one hertz. Such rich and lengthy data sets provide new opportunities for statistical insight, but also pose challenges in selecting from a wide range of possible summary statistics, and how the calculation of such statistics should be optimally tuned and implemented. In this paper, we build on existing approaches, as well as propose new summary statistics, and detail how these should be implemented with high frequency accelerometry data. We test and validate our methods on an observed data set from 26 recordings from individuals with advanced dementia and 14 recordings from individuals without dementia. We study four metrics: Interdaily stability (IS), intradaily variability (IV), the scaling exponent from detrended fluctuation analysis (DFA), and a novel nonparametric estimator which we call the proportion of variance (PoV), which calculates the strength of the circadian rhythm using spectral density estimation. We perform a detailed analysis indicating how the time series should be optimally subsampled to calculate IV, and recommend a subsampling rate of approximately 5 minutes for the dataset that has been studied. In addition, we propose the use of the DFA scaling exponent separately for daytime and nighttime, to further separate effects between individuals. We compare the relationships between all these methods and show that they effectively capture different features of the time series.

Research Literature on the Intersection of Dementia, Spirituality, and Palliative Care: A Scoping Review

CONTEXT

Dementia marks an increasingly prevalent terminal illness for which palliative care, including spiritual care, could improve quality of life. Research gaps exist in understanding the intersection of dementia, spirituality, and palliative care.

OBJECTIVES

We conducted the first scoping review examining the nature and breadth of peer-reviewed studies across these three topics to guide future research.

METHODS

The scoping review followed methods from The Joanna Briggs Institute Reviewers' Manual (2015). We developed a priori a scoping review protocol outlining the population, concept, and context for study; data sources; search strategy; inclusion/exclusion criteria; and procedure for screening, extracting, and analyzing data.

RESULTS

The final sample consisted of 19 studies with the following themes: characterizing spiritual needs, preferences, and resources; characterizing palliative or spiritual care; predicting provision of spiritual care; and assessing spiritual care interventions. Eighteen studies were published in the past decade, and 11 studies were based in Europe. Most studies focused on long-term care settings, grouped stages of dementia or did not specify dementia stage, and investigated interventions indirectly related to spiritual care. Many studies were limited in sample size and generalizability/transferability and used less sophisticated research designs.

CONCLUSION

Research across dementia, spirituality, and palliative care needs to examine settings beyond long-term care, distinct stages of dementia, and formal spiritual care interventions plus use rigorous study designs (e.g., randomized clinical trials). Such research could advance practice and policy that enhance quality of life for tens of millions of persons with dementia and their family members worldwide.

Components of palliative care interventions addressing the needs of people with dementia living in long-term care: A systematic review

BACKGROUND

People with dementia requiring palliative care have multiple needs, which are amplified in long-term care settings. The European Association for Palliative Care White Paper offers recommendations for optimal palliative care in dementia integral for this population, providing useful guidance to inform interventions addressing their specific needs.

AIM

The aim of this study is to describe the components of palliative care interventions for people with dementia in long-term care focusing on shared decision-making and examine their alignment to the European Association for Palliative Care domains of care.

DESIGN

Systematic review with narrative synthesis (PROSPERO ID: CRD42018095649).

DATA SOURCES

Four databases (MEDLINE, CINAHL, PsycINFO and CENTRAL) were searched (earliest records - July 2019) for peer-reviewed articles and protocols in English, reporting on palliative care interventions for people with dementia in long-term care, addressing European Association for Palliative Care Domains 2 (person-centred) or 3 (setting care goals) and ⩾1 other domain.

RESULTS

Fifty-one papers were included, reporting on 32 studies. For each domain (1-10), there were interventions found aiming to address its goal, although no single intervention addressed all domains. Domain 7 (symptom management; n = 19), 6 (avoiding overly aggressive treatment; n = 18) and 10 (education; n = 17) were the most commonly addressed; Domain 5 (prognostication; n = 7) and 4 (continuity of care; n = 2) were the least addressed.

CONCLUSION

Almost all domains were addressed across all interventions currently offered for this population to various degrees, but not within a singular intervention. Future research optimally needs to be theory driven when developing dementia-specific interventions at the end of life, with the European Association for Palliative Care domains serving as a foundation to inform the best care for this population.

Namaste care in the home setting: developing initial realist explanatory theories and uncovering unintended outcomes

INTRODUCTION

The End-of-Life Namaste Care Program for People with Dementia, challenges the misconception that people with dementia are a 'shell'; it provides a holistic approach using the five senses, which can provide positive ways of communicating and emotional responses. It is proposed Namaste Care can improve communication and the relationships families and friends have with the person with dementia. Previously used in care homes, this study is the first to explore the pioneering use of Namaste Care in people's own homes.

OBJECTIVE

To develop initial programme theories detailing if, how and under which circumstances Namaste Care works when implemented at home.

DESIGN

A qualitative realist approach following the RAMESES II guidelines was employed to understand not only whether Namaste Care has positive outcomes, but also how these are generated, for whom they happen and in which circumstances.

SETTING

A hospice in the North East of England, operating in the community, through volunteers.

PARTICIPANTS

Programme theories were developed from three focus groups with volunteers implementing Namaste Care (n=8; n=8; n=11) and eight interviews with family carers (n=8).

RESULTS

Four refined explanatory theories are presented: increasing engagement, respite for family carers, importance of matched volunteers and increasing social interaction. It was identified that while Namaste Care achieved some of the same goals in the home setting as it does in the care home setting, it could also function in a different way that promoted socialisation.

CONCLUSIONS

Namaste Care provides holistic and personalised care to people with both moderate and advanced dementia, improving engagement and reducing social isolation. In the present study carers often chose to use Namaste Care sessions as respite. This was often linked to their frustration of the unavoidable dominance of task-focussed care in daily life. Individualised Namaste Care activities thus led to positive outcomes for both those with dementia and their carers.

A group intervention to improve quality of life for people with advanced dementia living in care homes: the Namaste feasibility cluster RCT

BACKGROUND

People with advanced dementia who live and die in nursing homes experience variable quality of life, care and dying. There is a need to identify appropriate, cost-effective interventions that facilitate high-quality end-of-life care provision.

OBJECTIVES

To establish the feasibility and acceptability to staff and family of conducting a cluster randomised controlled trial of the Namaste Care intervention for people with advanced dementia in nursing homes.

DESIGN

The study had three phases: (1) realist review and (2) intervention refinement to inform the design of (3) a feasibility cluster randomised controlled trial with a process evaluation and economic analysis. Clusters (nursing homes) were randomised in a 3 : 1 ratio to intervention or control (usual care). The nature of the intervention meant that blinding was not possible.

SETTING

Nursing homes in England providing care for people with dementia.

PARTICIPANTS

Residents with advanced dementia (assessed as having a Functional Assessment Staging Test score of 6 or 7), their informal carers and nursing home staff.

INTERVENTION

Namaste Care is a complex group intervention that provides structured personalised care in a dedicated space, focusing on enhancements to the physical environment, comfort management and sensory engagement.

MAIN OUTCOME MEASURES

The two contender primary outcome measures were Comfort Assessment in Dying - End of Life Care in Dementia for quality of dying (dementia) and Quality of Life in Late Stage Dementia for quality of life. The secondary outcomes were as follows: person with dementia, sleep/activity (actigraphy), neuropsychiatric symptoms, agitation and pain; informal carers, satisfaction with care at the end of life; staff members, person-centred care assessment, satisfaction with care at the end of life and readiness for change; and other data - health economic outcomes, medication/service use and intervention activity.

RESULTS

Phase 1 (realist review; 86 papers) identified that a key intervention component was the activities enabling the development of moments of connection. In phase 2, refinement of the intervention enabled the production of a user-friendly 16-page A4 booklet. In phase 3, eight nursing homes were recruited. Two homes withdrew before the intervention commenced; four intervention and two control homes completed the study. Residents with advanced dementia (n = 32) were recruited in intervention (n = 18) and control (n = 14) homes. Informal carers (total, n = 12: intervention, n = 5; control, n = 7) and 97 staff from eight sites (intervention, n = 75; control, n = 22) were recruited over a 6-month period. Recruitment is feasible. Completion rates of the primary outcome questionnaires were high at baseline (100%) and at 4 weeks (96.8%). The Quality of Life in Late Stage Dementia was more responsive to change over 24 weeks. Even where economic data were missing, these could be collected in a full trial. The intervention was acceptable; the dose varied depending on the staffing and physical environment of each care home. Staff and informal carers reported changes for the person with dementia in two ways: increased social engagement and greater calm. No adverse events related to the intervention were reported.

CONCLUSIONS

A subsequent definitive trial is feasible if there are amendments to the recruitment process, outcome measure choice and intervention specification.

FUTURE WORK

In a full trial, consideration is needed of the appropriate outcome measure that is sensitive to different participant responses, and of clear implementation principles for this person-centred intervention in a nursing home context.

TRIAL REGISTRATION

Current Controlled Trials ISRCTN14948133.

FUNDING

This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 24, No. 6. See the NIHR Journals Library website for further project information.

A four-stage process for intervention description and guide development of a practice-based intervention: refining the Namaste Care intervention implementation specification for people with advanced dementia prior to a feasibility cluster randomised trial

Background

Some interventions are developed from practice, and implemented before evidence of effect is determined, or the intervention is fully specified. An example is Namaste Care, a multi-component intervention for people with advanced dementia, delivered in care home, community, hospital and hospice settings. This paper describes the development of an intervention description, guide and training package to support implementation of Namaste Care within the context of a feasibility trial. This allows fidelity to be determined within the trial, and for intervention users to understand how similar their implementation is to that which was studied.

Methods

A four-stage approach: a) Collating existing intervention materials and drawing from programme theory developed from a realist review to draft an intervention description. b) Exploring readability, comprehensibility and utility with staff who had not experienced Namaste Care. c) Using modified nominal group techniques with those with Namaste Care experience to refine and prioritise the intervention implementation materials. d) Final refinement with a patient and public involvement panel.

Results

Eighteen nursing care home staff, one carer, one volunteer and five members of our public involvement panel were involved across the study steps. A 16-page A4 booklet was designed, with flow charts, graphics and colour coded information to ease navigation through the document. This was supplemented by infographics, and a training package. The guide describes the boundaries of the intervention and how to implement it, whilst retaining the flexible spirit of the Namaste Care intervention.

Conclusions

There is little attention paid to how best to specify complex interventions that have already been organically implemented in practice. This four-stage process may have utility for context specific adaptation or description of existing, but untested, interventions. A robust, agreed, intervention and implementation description should enable a high-quality future trial. If an effect is determined, flexible practice implementation should be enabled through having a clear, evidence-based guide.

Improving living and dying for people with advanced dementia living in care homes: a realist review of Namaste Care and other multisensory interventions

BACKGROUND

Seventy percent of people with advanced dementia live and die in care homes. Multisensory approaches, such as Namaste Care, have been developed to improve the quality of life and dying for people with advanced dementia but little is known about effectiveness or optimum delivery. The aim of this review was to develop an explanatory account of how the Namaste Care intervention might work, on what outcomes, and in what circumstances.

METHODS

This is a realist review involving scoping of the literature and stakeholder interviews to develop theoretical explanations of how interventions might work, systematic searches of the evidence to test and develop the theories, and their validation with a purposive sample of stakeholders. Twenty stakeholders - user/patient representatives, dementia care providers, care home staff, researchers -took part in interviews and/or workshops.

RESULTS

We included 85 papers. Eight focused on Namaste Care and the remainder on other types of sensory interventions such as music therapy or massage. We identified three context-mechanism-outcome configurations which together provide an explanatory account of what needs to be in place for Namaste Care to work for people living with advanced dementia. This includes: providing structured access to social and physical stimulation, equipping care home staff to cope effectively with complex behaviours and variable responses, and providing a framework for person-centred care. A key overarching theme concerned the importance of activities that enabled the development of moments of connection for people with advanced dementia.

CONCLUSIONS

This realist review provides a coherent account of how Namaste Care, and other multisensory interventions might work. It provides practitioners and researchers with a framework to judge the feasibility and likely success of Namaste Care in long term settings. Key for staff and residents is that the intervention triggers feelings of familiarity, reassurance, engagement and connection.

STUDY REGISTRATION

This study is registered as PROSPERO CRD42016047512.