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1.
Lancet ; 402 Suppl 1: S80, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37997126

RESUMO

BACKGROUND: Mild cognitive impairment (MCI) affects 5-20% of older people in the UK, but often goes undiagnosed and is associated with increased risk of dementia. Targeting risk factors such as physical inactivity and social isolation through behaviour-change interventions could reduce this risk. However, it is unclear how MCI impacts engagement with these interventions. We aimed to explore how MCI affects goal-setting priorities and progress towards these goals in a behaviour-change intervention (HomeHealth). METHODS: This was a secondary analysis of a completed randomised controlled trial, HomeHealth, which started in January 2021 and recruited 386 participants aged 65 years and older with mild frailty according to the Clinical Frailty Scale from general practices and the community in England. Participants were randomly assigned (1:1) to receive either the HomeHealth intervention (n=195) or treatment as usual (n=191) for 6 months. An evidence-based behaviour change intervention supported older people to work on goals to maintain independence, addressing factors affecting capability, opportunity, and motivation. Goal setting and progress information was available for 167 (86%) of 195 participants who received the intervention. The type of goal set and goal progress (scale 0-2) were compared between participants with healthy cognition, those with potential MCI, and those with probable dementia (rated with Montreal Cognitive Assessment [MoCA]). Qualitative semi-structured interviews were conducted between Aug 16, 2022, and May 18, 2023, with 29 people with MCI who received the intervention, to explore the perceived impact of MCI on goal setting, progress, and maintenance. Data were analysed using codebook thematic analysis. FINDINGS: The mean age of participants was 80·8 years, 105 (63%) of 167 were women and 158 (95%) were white. 54 (32%) of 167 participants had healthy cognition, 94 (56%) had potential MCI, and 19 (11%) probable dementia. Distribution of goal type was similar across the three groups, with most participants setting mobility goals. Progress towards goals (scale 0-2) was similar in people with healthy cognition and potential MCI (1·24 and 1·18, respectively) but lower in those with probable dementia (0·76). However, all met the moderate progress cutoff (0·66-1·32). People with MCI recognised their cognition was getting worse but did not feel the HomeHealth intervention could help. Rather than setting new goals, people with MCI built on existing behaviours. Many did not initially understand the intervention and felt they would have benefitted from contact in between sessions or from more sessions to help goal progress. Once the sessions ended, less than a quarter of participants maintained the goal progress. INTERPRETATION: Interventions to help older adults age well can be successfully delivered in people with MCI, to help them set and make progress towards goals. However, to maintain changes, more intense support is needed. FUNDING: National Institute for Health and Care Research (NIHR) School for Primary Care Research, NIHR Health Technology Assessment.


Assuntos
Disfunção Cognitiva , Demência , Fragilidade , Humanos , Feminino , Idoso , Idoso de 80 Anos ou mais , Masculino , Objetivos , Disfunção Cognitiva/terapia , Inglaterra , Demência/terapia , Análise Custo-Benefício , Qualidade de Vida
2.
Qual Life Res ; 2024 Jun 18.
Artigo em Inglês | MEDLINE | ID: mdl-38888672

RESUMO

PURPOSE: To investigate the contributors to self-rated health in people with late-stage Parkinson's disease (PD) and cognitive impairment. METHODS: A secondary analysis of baseline data from the international Care of Late-Stage Parkinsonism (CLaSP) cohort study was conducted. Participants with PD and either dementia or mild cognitive impairment or MMSE < 24/30 in the absence of major depression were included if they had completed the EQ-5D-3L assessment (n = 277). Factors associated with self-rated health (EQ-5D-3L Index and Visual Analogue Scale) were investigated through multivariable linear regression. RESULTS: More severe PD (motor and non-motor) was associated with worse self-rated health. The EQ-5D-3L dimensions of Mobility, Self-Care and Usual Activities were almost universally affected; the latter two particularly severely. Being unable to perform usual activities or having moderate to extreme anxiety or depression were significantly associated with EQ-5D-3L Visual Analogue Scale, suggesting these are particularly valued. Worse motor impairment and function and the non-motor symptom domains of mood, perception, sexual function, and miscellaneous (e.g., pain) were associated with worse self-rated health, whereas greater burden of gastrointestinal symptoms was associated with better self-rated health in multivariate analysis. Better self-rated health was associated with recent PD nurse consultation, and higher doses of dopaminergic medication. CONCLUSION: Improvement of activities of daily living, mood and anxiety should be prioritised in clinical practice, with consideration of perception and sexual function in this population. Recent nurse consultations and higher antiparkinsonian doses are associated with better self-rated health, suggesting there is no room for a therapeutic nihilism in this population of people within a complex phase of PD.

3.
Health Expect ; 27(3): e14070, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38751247

RESUMO

BACKGROUND: The number of people living with diabetes is rising worldwide and a higher prevalence of diabetes has been linked to those experiencing socioeconomic deprivation. Self-management strategies are vital and known to reduce the risks of long-term complications amongst people living with diabetes. Lack of knowledge about self-care activity required to manage diabetes is a key barrier to successful self-management. Self-management interventions can be less effective in socioeconomically deprived populations which can increase the risk of exacerbating health inequalities. The purpose of this review is to identify and synthesise qualitative evidence on the barriers and facilitators of self-management of diabetes amongst people who are socioeconomically disadvantaged. METHODS: MEDLINE, EMBASE, AMED, PsycINFO and CINAHL Plus were searched for qualitative studies concerning self-management of multiple long-term conditions amongst socioeconomically disadvantaged populations. Relevant papers which focused on diabetes were identified. Data were coded and thematically synthesised using NVivo. FINDINGS: From the search results, 79 qualitative studies were identified after full-text screening and 26 studies were included in the final thematic analysis. Two overarching analytical themes were identified alongside a set of subthemes: (1) Socioeconomic barriers to diabetes self-management; healthcare costs, financial costs of healthy eating, cultural influences, living in areas of deprivation, competing priorities and time constraints, health literacy, (2) facilitators of diabetes self-management; lifestyle and having goals, support from healthcare providers, informal support. DISCUSSION: Self-management of diabetes is challenging for people experiencing socioeconomic deprivation due to barriers associated with living in areas of deprivation and financial barriers surrounding healthcare, medication and healthy food. Support from healthcare providers can facilitate self-management, and it is important that people with diabetes have access to interventions that are designed to be inclusive from a cultural perspective as well as affordable. PATIENT OR PUBLIC CONTRIBUTION: A patient advisory group contributed to the research questions and interpretation of the qualitative findings by reflecting on the themes developed.


Assuntos
Diabetes Mellitus , Pesquisa Qualitativa , Autogestão , Humanos , Diabetes Mellitus/terapia , Fatores Socioeconômicos , Pobreza , Autocuidado
4.
Health Expect ; 27(2): e14046, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38623837

RESUMO

BACKGROUND: Globally, it is estimated that one in three adults live with two or more long-term conditions (multiple long-term conditions, MLTCs), that require self-management. People who experience socioeconomic deprivation face significant health inequalities due to a range of interrelated characteristics that lead to a lack of resources and opportunities. Previous research with underserved populations indicate low levels of trust towards primary care providers and potential barriers for developing patient-healthcare professional relationships. The purpose of this paper is to explore the barriers and facilitators to self-managing MLTCs, amongst people who experience socioeconomic deprivation. METHODS: Semistructured one-to-one interviews with adults (n = 28) living in London and Sheffield, United Kingdom with MLTCs who are experiencing socioeconomic deprivation. Participants were recruited through general practices, community channels and social media. Data were analysed in NVivo using reflexive thematic analysis methods. FINDINGS: Four analytical themes were developed: (1) challenges in accessing healthcare services, financial assistance, and cultural awareness; (2) empowerment and disempowerment through technology, including digital exclusion, and use of technology; (3) impact and causes of exclusion on self-management, including social isolation, area-based and economic exclusion, and health-related stigma and (4) adapting self-management strategies, including cost-effective, and culturally/lifestyle appropriate strategies. CONCLUSIONS: Future health interventions and services need to be developed with consideration of the combined complexities of managing MLTCs while experiencing socioeconomic deprivation. Increased awareness in practitioners and commissioners of the complexities surrounding the lives of people experiencing socioeconomic deprivation, and the need for targeted strategies to promote self-management of MLTCs are of great importa. PATIENT OR PUBLIC CONTRIBUTION: A patient advisory group contributed to all stages of the study, including providing important feedback on study documents (topic guides and recruitment materials), as well as providing critical insights surrounding the interpretation of interview data.


Assuntos
Autogestão , Adulto , Humanos , Pesquisa Qualitativa , Reino Unido , Área Carente de Assistência Médica , Fatores Socioeconômicos
5.
BMC Health Serv Res ; 24(1): 92, 2024 Jan 17.
Artigo em Inglês | MEDLINE | ID: mdl-38233917

RESUMO

INTRODUCTION: Self-management interventions consist of multiple components to support people in the management of medical, emotional, and behavioural aspects of their condition, and aim to improve quality of life, function, and other outcomes. A systematic review of self-management interventions in Parkinson's showed no conclusive evidence for effectiveness of specific self-management approaches in Parkinson's to date but identified several potentially useful components. AIM: To identify the key required components for self-management in people with Parkinson's by synthesising evidence from a body of primary qualitative evidence and systematic reviews, and to explore which of these key components should be incorporated into trials of self-management in Parkinson's. METHOD: A mixed-methods synthesis was conducted. We combined data from two primary qualitative studies and a systematic review of qualitative studies that focused on self-management in Parkinson's to identify key intervention components. These were then mapped onto the results of a systematic review of Randomised Controlled Trials (RCTs) using matrices. First, data were extracted from the qualitative studies with people with Parkinson's and healthcare professionals on the key self-management components in this population. Second, a matrix table was created to map the identified Parkinson's specific self-management components against potential effectiveness from published RCTs of self-management interventions. RESULTS: Synthesis of qualitative data identified 15 potential self-management components. These 15 components included components needed to start self-managing (e.g., information, skill acquirement) and components needed to maintain self-managing (e.g., self-motoring, increasing motivation). From 18 RCTs, interventions varied in how many components were included (range 1-10). Trials reporting significant beneficial effects of their intervention included a higher number of components (4 or more self-management components) than trials without significant findings (1-3 self-management components). CONCLUSION: Fifteen key self-management components were identified that should be incorporated into interventions or programs of self-management in Parkinson's. No current trial has incorporated all aspects, but a higher number of these key components appears to make trials of self-management interventions more likely to be successful.


Assuntos
Doença de Parkinson , Autogestão , Humanos , Doença de Parkinson/terapia , Pessoal de Saúde
6.
J Public Health (Oxf) ; 45(4): 970-1041, 2023 Nov 29.
Artigo em Inglês | MEDLINE | ID: mdl-37553102

RESUMO

BACKGROUND: Long-term conditions (LTCs) are prevalent in socio-economically deprived populations. Self-management interventions can improve health outcomes, but socio-economically deprived groups have lower participation in them, with potentially lower effectiveness. This review explored whether self-management interventions delivered to people experiencing socio-economic deprivation improve outcomes. METHODS: We searched databases up to November 2022 for randomized trials. We screened, extracted data and assessed the quality of these studies using Cochrane Risk of Bias 2 (RoB2). We narratively synthesized all studies and performed a meta-analysis on eligible articles. We assessed the certainty of evidence using GRADE for articles included in the meta-analysis. RESULTS: The 51 studies included in this review had mixed findings. For the diabetes meta-analysis, there was a statistically significant pooled reduction in haemoglobin A1c (-0.29%). We had moderate certainty in the evidence. Thirty-eight of the study interventions had specific tailoring for socio-economically deprived populations, including adaptions for low literacy and financial incentives. Each intervention had an average of four self-management components. CONCLUSIONS: Self-management interventions for socio-economically deprived populations show promise, though more evidence is needed. Our review suggests that the number of self-management components may not be important. With the increasing emphasis on self-management, to avoid exacerbating health inequalities, interventions should include tailoring for socio-economically deprived individuals.


Assuntos
Autogestão , Humanos , Países Desenvolvidos , Pobreza , Renda
7.
Int J Behav Med ; 30(5): 585-604, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36284042

RESUMO

BACKGROUND: People with advanced cancer experience psychological distress due to physical symptoms, functional decline, and a limited prognosis. Difficult thoughts, feelings, and emotions may exacerbate distress and lead to avoidance of these experiences which is sometimes referred to as experiential avoidance (EA). Advanced cancer patients may be more likely to engage in EA especially when no obvious solutions to their problems exist. This study aims to examine the terms used to describe EA, the processes that might indicate EA, associations between EA and psychological distress, and to understand why individuals might engage in EA. METHODS: A mixed-methods review. Literature search of Medline, Embase, Psych INFO, and CINAHL 1980-October 2019. INCLUSION: adults ≥ 18 years; advanced cancer not amenable to cure. EXCLUSION: no measures of EA or psychological distress. Risk of bias and study quality assessed. Evidence of statistical techniques collected. Themes coded, grouped, and developed based on meaning. RESULTS: Nineteen studies identified, 13 quantitative studies and 6 qualitative. The quantitative of which 6 compared early-stage cancers with advanced cancers and examined subscales of EA alongside mood, quality of life, and psychological distress. EA covers a range or terms of which 'avoidant coping' is the commonest. EA is manifest as cognitive, behavioural, and emotional avoidance. A thematic synthesis suggests the function of EA is to protect people from distress, and from confronting or expressing difficult emotions by avoiding communication about cancer, controlling negative information, and maintaining normality and hope and optimism. CONCLUSIONS: EA may be beneficial in the short term to alleviate distress, but in the longer term, it can impair function and limit engagement in life. Greater clinical awareness of the complexity of EA behaviours is needed. Clinicians and researchers should define EA precisely and be aware of the function it may serve in the short and longer term. Future research studies may consider using specific measures of EA as a primary outcome, to assess the impact of psychological interventions such as ACT.


Assuntos
Neoplasias , Estresse Psicológico , Adulto , Humanos , Estresse Psicológico/psicologia , Qualidade de Vida/psicologia , Emoções , Afeto , Neoplasias/psicologia
8.
Artigo em Inglês | MEDLINE | ID: mdl-35137453

RESUMO

INTRODUCTION: People from ethnic minority backgrounds living with dementia are more likely to be diagnosed later and have less access to health and social care support than their White counterparts in the United Kingdom (UK). Covid-19 has exacerbated health inequalities and diminished trust from underserved communities in the government and health services. The wider aim of the study was to explore the impact of covid-19 on Black and South-Asian people living with dementia and their carers as well as exploring the experiences of dementia care. The present paper specifically explores their views on trust and mistrust using an ecological model. METHOD: Semi-structured interviews were conducted with 11 family carers and four people living with dementia from South Asian or Black communities living in the community. Thematic analysis was used to analyse data. DESIGN: An exploratory qualiative design was used. RESULTS: Four main themes were developed exploring trust at the structural, organisational, community and individual level. At the structural level, participants discussed the inequity of Covid-19, some lack of trust in the UK Government and confusion in its messaging, and the anxiety sometimes leading to curtailment of media usage. At the organisational level, there was some evidence of a perceived lack of person-centred and culturally sensitive care from healthcare professionals, as well as concerns around care homes as places of safety. At the neighbourhood community level, participants discussed both a distrust as well as a strengthening of relationships and, at the individual level, factors such as knowledge of services, identity, and faith influenced their experience of the pandemic. CONCLUSIONS: People living with dementia need support at all levels and this study highlights how the pandemic impacted each level. Ways to improve trust in the Government and health professionals alongside culturally adapted health messaging should be explored. Alongside this, an examination of how cultural values and norms may influence help-seeking responses to dementia and increase trust in services may be helpful post-pandemic.


Assuntos
COVID-19 , Demência , Cuidadores , Demência/epidemiologia , Etnicidade , Humanos , Grupos Minoritários , Pandemias , SARS-CoV-2 , Confiança , Reino Unido
9.
Clin Trials ; 19(6): 665-672, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-36017707

RESUMO

BACKGROUND/AIMS: Self-management interventions are increasingly being developed and researched to improve long-term condition outcomes. To understand and interpret findings, it is essential that fidelity of intervention delivery and participant engagement are measured and reported. Before developing fidelity checklists to assess treatment fidelity of interventions, current recommendations suggest that a synthesis of fidelity measures reported in the literature is completed. Therefore, here we aim to identify what the current measures of fidelity of intervention delivery and engagement for self-management interventions for long-term conditions are and whether there is treatment fidelity. METHODS: Four databases (MEDLINE, PubMed, CINAHL Plus and ScienceDirect) and the journal implementation science were systematically searched to identify published reports from inception to December 2020 for experimental studies measuring fidelity of intervention delivery and/or participant engagement in self-management interventions for long-term conditions. Data on fidelity of delivery and engagement measures and the findings were extracted and synthesised. RESULTS: Thirty-nine articles were identified as eligible, with 25 studies measuring fidelity of delivery, 19 reporting engagement and 5 measuring both. For fidelity of delivery, measures included structured checklists, participant completed measures and researcher observations/notes. These were completed by researchers, participants and intervention leaders. Often there was little information around the development of these measures, particularly when the measure had been developed by the researchers, rather than building on others work. Eighteen of 25 studies reported there was fidelity of intervention delivery. For engagement, measures included data analytics, participant completed measures and researcher observations. Ten out of 19 studies reported participants were engaged with the intervention. CONCLUSION: In complex self-management interventions, it is essential to assess whether treatment fidelity of each core component of interventions is delivered, as outlined in the protocol, to understand which components are having an effect. Treatment fidelity checklists comparing what was planned to be delivered, with what was delivered should be developed with pre-defined cut-offs for when fidelity has been achieved. Similarly, when measuring engagement, while data analytics continue to rise with the increase in digital interventions, clear cut-offs for participant use and content engaged with to be considered an engagement participant need to be pre-determined.


Assuntos
Autogestão , Humanos , Lista de Checagem , Ciência de Dados , Bases de Dados Factuais , MEDLINE
10.
Palliat Med ; 36(9): 1320-1335, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-36071641

RESUMO

BACKGROUND: Complementary therapies are widely used in palliative care settings. Qualitative research found that people with advanced disease report a range of physical and psychological benefits from complementary therapies, however evidence of their effectiveness from clinical trials is inconclusive. This may be because trials are limited by use of inappropriate outcome measures. AIMS: To identify tools which capture the impact of massage, reflexology and aromatherapy in people with advanced disease. We (1) identified multi-domain tools used to evaluate these therapies in populations with any chronic health condition and (2) assessed whether tools were valid and psychometrically robust in populations with advanced disease. DESIGN: A two-stage systematic review was conducted using the COnsensus-based Standards for the selection of health Measurement INstruments (COSMIN) guidelines (PROSPERO: CRD42020161199). DATA SOURCES: Six databases were searched (August 2021). Study methodological quality, tool psychometric properties and evidence quality were assessed. A global comparison score was generated. RESULTS: Stage 1: 66 trials using 40 different multi-domain tools were identified. Stage 2: Of these tools, we identified papers for seven tools regarding development or validation in advanced disease populations. The majority of psychometric data were inconsistent or inconclusive. Data were mostly of low quality due to methodological issues. CONCLUSION: Of the tools identified, 'Functional Assessment of Cancer Therapy - General' appears to be the most suitable alternative tool against COMSIN criteria, for trials of massage, reflexology and aromatherapy in palliative care. Further tool validation is required before firm recommendations can be made. Co-development of a core outcome set could ensure relevant domains are assessed.


Assuntos
Aromaterapia , Enfermagem de Cuidados Paliativos na Terminalidade da Vida , Humanos , Cuidados Paliativos , Psicometria , Massagem
11.
Palliat Med ; 35(6): 1202-1214, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33775172

RESUMO

BACKGROUND: People residing in UK homeless hostels experience extremely high rates of multi-morbidity, frailty and age-related conditions at a young age. However, they seldom receive palliative care with the burden of support falling to hostel staff. AIM: To evaluate a model embedding palliative specialists, trained as 'homelessness champions', into hostels for two half-days a month to provide support to staff and residents and facilitate a multidisciplinary approach to care. DESIGN: An exploratory qualitative design. SETTING/PARTICIPANTS: Four homeless hostels in London, UK, including nine hostel managers/support staff and seven palliative care specialists (five nurses and two social workers). RESULTS: Benefits to introducing the model included: developing partnership working between hostel staff and palliative care specialists, developing a holistic palliative ethos within the hostels and improving how hostel staff seek support and connect with local external services. Challenges to implementation included limited time and resources, and barriers related to primary care. CONCLUSION: This is the first evaluation of embedding palliative care specialists within homeless hostels. Inequity in health and social care access was highlighted with evidence of benefit of this additional support for both hostel staff and residents. Considering COVID-19, future research should explore remote ways of working including providing in-reach support to homelessness services from a range of services and organisations.


Assuntos
COVID-19 , Pessoas Mal Alojadas , Humanos , Londres , Cuidados Paliativos , SARS-CoV-2
12.
BMC Geriatr ; 21(1): 706, 2021 12 15.
Artigo em Inglês | MEDLINE | ID: mdl-34911497

RESUMO

BACKGROUND: Parkinson's disease is a long-term, complex health condition. To improve or maintain quality of life, people with Parkinson's can have an active involvement in their care through self-management techniques. Given the complexity and individualization of self-management, people with Parkinson's will need support and encouragement from their healthcare professionals (HCPs). Despite the key role HCPs have in this, research has seldom explored their perspectives and understanding of self-management for people with Parkinson's. METHODS: Multi-disciplinary teams providing care for people with Parkinson's across London, Coventry and Hertfordshire were approached and took part in either one of four focus groups or individual interviews. Forty-two HCPs, including a range of specialist doctors, general practitioners, allied health professionals, nurses, and social workers, took part in this study. Interviews were transcribed and analysed using thematic analysis to identify themes. RESULTS: Four themes were developed from the data: 1) Empowerment of patients through holistic care and being person-centred; 2) Maximising motivation and capability for patients, for example using asset based approaches and increasing opportunities; 3) importance of empowerment of carers to support self-management and 4) contextual barriers to self-management such as the social context. CONCLUSIONS: This study is the first to explore the perspectives of HCPs on self-management in people with Parkinson's. Our findings have identified important considerations surrounding empowerment, motivation, carers and contextual barriers to better understand how we enable effective self-management techniques in people with Parkinson's. Research should build on these findings on to develop acceptable and effective self-management tools for use in practice with people affected by Parkinson's.


Assuntos
Clínicos Gerais , Doença de Parkinson , Autogestão , Humanos , Doença de Parkinson/terapia , Pesquisa Qualitativa , Qualidade de Vida , Reino Unido
13.
BMC Health Serv Res ; 21(1): 837, 2021 Aug 18.
Artigo em Inglês | MEDLINE | ID: mdl-34407826

RESUMO

BACKGROUND: Randomised controlled trials, and in particular those of psychosocial interventions, often fail to recruit to target, resulting in underpowered trials with poor generalisability of findings. The objectives of this study were to explore the views of healthcare professionals on recruiting to psychosocial research studies, and to explore their views on factors that may hinder or facilitate recruitment. METHODS: We conducted 14 semi-structured interviews, with healthcare professionals who had been involved in recruitment into a randomised controlled trial of a talking therapy for depression in patients with advanced cancer. Interviews were transcribed and analysed using thematic analysis. RESULTS: Five primary themes were identified, comprised of 11 subthemes. Attitudes towards research were largely positive. Health care professionals identified lack of time and narrow screening criteria as barriers to recruitment, and also noted the tendency to withhold participants from research for reasons other than eligibility (e.g., gatekeeping). The engagement of the study team with the clinical recruitment site, and the frequent presence of a researcher in clinics, were noted as facilitating recruitment. CONCLUSIONS: Healthcare professionals involved in recruiting to trials of psychosocial interventions hold generally positive views of psychosocial research. However, they report that constraints including space and time limit their ability to recruit, and express anxieties about approaching patients for trial recruitment in the palliative phase of their illness. The findings from this study can inform how best to design trials, and in particular trials of psychosocial interventions, and train health care professionals for the study, to maximise recruitment.


Assuntos
Pessoal de Saúde , Seleção de Pacientes , Pesquisadores , Atenção à Saúde , Humanos , Pesquisa Qualitativa
14.
Langmuir ; 36(45): 13527-13534, 2020 11 17.
Artigo em Inglês | MEDLINE | ID: mdl-33152250

RESUMO

The study of protein adsorption at the single molecule level has recently revealed that the adsorption is reversible, but with a long-tailed residence time distribution which can be approximated with a sum of exponential functions putatively related to distinct adsorption sites. Here it is proposed that the shape of the residence time distribution results from an adsorption process with sequential and reversible steps that contribute to overall binding strength resembling "zippering". In this model, the survival function of the residence time distribution of single proteins varies from an exponential distribution for a single adsorption step to a power law distribution with exponent -1/2 for a large number of adsorption steps. The adsorption of fluorescently labeled fibrinogen to glass surfaces is experimentally studied with single molecule imaging. The experimental residence time distribution can be readily fit by the proposed model. This demonstrates that the observed long residence times can arise from stepwise adsorption rather than rare but strong binding sites and provides guidance for the control of protein adsorption to biomaterials.


Assuntos
Fibrinogênio , Vidro , Adsorção , Cinética , Propriedades de Superfície
15.
Palliat Med ; 34(10): 1332-1339, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-32667259

RESUMO

BACKGROUND: Interventions delivered in palliative care are complex and their evaluation through qualitative and quantitative research can lead to contrasting results. In a systematic review of trials, the effectiveness results of complementary therapies in palliative care were inconclusive; however, our qualitative synthesis showed participants perceived them to be beneficial. AIM: Use a novel methodology to synthesise evidence from qualitative and quantitative systematic reviews on complementary therapy in palliative care to explore the following: (1) If interventions delivered in trials reflect how participants in qualitative studies report they are delivered in real-life settings and (2) whether quality of life measures used in trials capture perceived benefits that are reported in qualitative studies. METHODS: Two matrix tables were formulated. In one, key components in delivery of the complementary therapy from the qualitative synthesis which are as follows: (1) relationship with therapist, (2) comfortable environment, (3) choices (e.g. area of massage) and (4) frequent sessions, were plotted against intervention description, to explore matches and mismatches. In the other, items included in quality of life scales were compared with perceived benefits of complementary therapy. RESULTS: None of the trials included all four key delivery components. The five quality of life scales used in the trials failed to capture the range of perceived benefits from the complementary therapies and many included inappropriate or redundant items. CONCLUSIONS: By integrating qualitative and quantitative review data, we determined the reasons trials may be inconclusive. This methodological exemplar provides a framework for understanding complexity in outcomes across trials and a direction for future research.


Assuntos
Enfermagem de Cuidados Paliativos na Terminalidade da Vida , Cuidados Paliativos , Humanos , Massagem , Pesquisa Qualitativa , Qualidade de Vida
16.
Palliat Med ; 34(2): 179-194, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31659939

RESUMO

BACKGROUND: Aromatherapy, massage and reflexology are widely used in palliative care. Despite this, there are questions about their suitability for inclusion in clinical guidelines. The need to understand their benefits is a public priority, especially in light of funding pressures. AIM: To synthesise current evidence on the effectiveness of aromatherapy, massage and reflexology in people with palliative care needs. DESIGN: A systematic review of randomised controlled trials (PROSPERO CRD42017081409) was undertaken following international standards including Cochrane guidelines. The quality of trials and their pooled evidence were appraised. Primary outcomes on effect were anxiety, pain and quality-of-life. DATA SOURCES: Eight citation databases and three trial registries were searched to June 2018. RESULTS: Twenty-two trials, involving 1956 participants were identified. Compared with a control, four evaluated aromatherapy, eight massage and six reflexology. A further four evaluated massage compared with aromatherapy. Trials were at an unclear risk of bias. Many had small samples. Heterogeneity prevented meta-analysis. In comparison with usual care, another therapy or an active control, evidence on the effectiveness of massage and aromatherapy in reducing anxiety, pain and improving quality-of-life was inconclusive. There was some evidence (low quality) that compared to an active control, reflexology reduced pain. CONCLUSIONS: This review identified a relatively large number of trials, but with poor and heterogeneous evidence. New clinical recommendations cannot be made based on current evidence. To help provide more definitive trial findings, it may be useful first to understand more about the best way to measure the effectiveness of these therapies in palliative care.


Assuntos
Aromaterapia/métodos , Enfermagem de Cuidados Paliativos na Terminalidade da Vida/métodos , Massagem/métodos , Terapias Mente-Corpo/métodos , Manipulações Musculoesqueléticas/métodos , Cuidados Paliativos/métodos , Qualidade de Vida/psicologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
17.
J Am Chem Soc ; 141(15): 6173-6179, 2019 04 17.
Artigo em Inglês | MEDLINE | ID: mdl-30942593

RESUMO

The differential dihydrofunctionalization of terminal alkynes is accomplished through the reductive three-component coupling of terminal alkynes, aryl halides, and pinacolborane. The transformation results in hydrofunctionalization of both π-bonds of an alkyne in a single reaction promoted by cooperative action of a copper/palladium catalyst system. The differential dihydrofunctionalization reaction has excellent substrate scope and can be accomplished in the presence of esters, nitriles, alkyl halides, epoxides, acetals, alkenes, aryl halides, and silyl ethers. Mechanistic experiments indicate that the reaction proceeds through copper-catalyzed hydroboration followed by a second hydrocupration. The resulting heterobimetallic complex is the key intermediate that participates in the subsequent palladium-catalyzed cross-coupling, which furnishes benzylic alkyl boronate products.


Assuntos
Alcinos/química , Derivados de Benzeno/síntese química , Ácidos Borônicos/síntese química , Derivados de Benzeno/química , Ácidos Borônicos/química , Estrutura Molecular
18.
Psychooncology ; 28(3): 488-496, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-30511788

RESUMO

OBJECTIVE: To understand the feasibility of recruiting people with advanced cancer into a randomised controlled trial of acceptance and commitment therapy (ACT) vs a standardised talking control (TC) and delivering ACT to this population; to explore the acceptability of outcome measures and generate normative data. METHODS: This was a feasibility two-arm randomised controlled trial. Participants were attendees with advanced cancer at one of three hospice-based day-therapy units in London, United Kingdom, who demonstrated low scores on the Functional Assessment of Cancer Therapies-General (FACT-G). The primary end point was 3 months. RESULTS: The recruitment target was 54 participants; 42 people were recruited and randomised to up to eight individual sessions of ACT (n = 20) or TC (n = 22). Eighteen out of 42 (43%) of participants completed the primary outcome at 3 months, and at least one follow-up was available in 30/42 (71%) participants. An exploratory analysis revealed a non-significant adjusted mean difference after 3 months in the main outcome FACT-G of -3.41 (CI = -18.61-11.79) with TC having better functioning. Over 6 months, the adjusted mean difference between trial arms was 2.25 (CI = -6.03-10.52) in favour of ACT. CONCLUSIONS: It is feasible to recruit people with advanced cancer in a trial of ACT versus TC. Future research should test the effectiveness of ACT in a fully powered trial.


Assuntos
Terapia de Aceitação e Compromisso/métodos , Neoplasias/psicologia , Cooperação do Paciente/psicologia , Adulto , Análise Custo-Benefício , Estudos de Viabilidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias/terapia , Avaliação de Resultados em Cuidados de Saúde , Satisfação do Paciente , Reino Unido
19.
Palliat Med ; 33(7): 757-769, 2019 07.
Artigo em Inglês | MEDLINE | ID: mdl-31060455

RESUMO

BACKGROUND: Effectiveness evidence of complementary therapies in people with advanced disease is uncertain, and yet people are still keen to engage in complementary therapy. Insights into people's experiences of complementary therapy in palliative care, the perceived benefits, and how they want it delivered, can inform clinical guidelines and suggest ways to test therapies more appropriately in future evaluations. AIMS: Explore in people with advanced disease (1) the experiences and perceptions of benefits and harms of aromatherapy, massage, and reflexology and (2) how they would like these therapies delivered. DESIGN: A systematic review and thematic synthesis of qualitative studies. Database search terms were related to palliative care, aromatherapy, reflexology and massage. Citations and full texts were reviewed independently against predefined inclusion criteria. Studies were appraised for quality. This review is registered at PROSPERO (22/11/2017 CRD42017081409). DATA SOURCES: MEDLINE, EMBASE, PsycINFO, AMED, CINAHL, KoreaMed and ProQuest with a bibliography search to June 2018. RESULTS: Five qualitative studies in advanced cancer were identified. Three analytical themes were identified: (1) Experience during the therapy (enhanced well-being and escapism), (2) beyond the complementary therapy session (lasting benefits and overall evaluation), and (3) delivery of complementary therapy in palliative care (value of the therapist and delivery of the complementary therapy). CONCLUSIONS: People with advanced cancer experience benefits from aromatherapy, reflexology and massage including enhanced well-being, respite, and escapism from their disease. Complementary therapy interventions should be developed in consultation with the target population to ensure they are delivered and evaluated, where feasible, as they wish.


Assuntos
Aromaterapia , Massagem , Manipulações Musculoesqueléticas , Cuidados Paliativos , Humanos
20.
Palliat Med ; 33(8): 926-941, 2019 09.
Artigo em Inglês | MEDLINE | ID: mdl-31184529

RESUMO

BACKGROUND: Effective communication between healthcare professionals and relatives of patients approaching the end-of-life is vital to ensure patients have a 'good death'. To improve communication, it is important to first identify how this is currently being accomplished. AIM: To review qualitative evidence concerning characteristics of communication about prognosis and end-of-life care between healthcare professionals and relatives of patients approaching the end-of-life. DESIGN: Qualitative systematic review (PROSPERO registration CRD42017065560) using thematic synthesis. Peer-reviewed, English language articles exploring the content of conversations and how participants communicated were included. No date restrictions were applied. Quality of included studies was appraised using the Joanna Briggs Institute Critical Appraisal Checklist for Qualitative Research. DATA SOURCES: An electronic database search of CINAHL, MEDLINE, PsycINFO and EMBASE was performed. RESULTS: Thirty-one papers were included. Seven themes were identified: highlighting deterioration; involvement in decision-making, post-decision interactional work, tailoring, honesty and clarity, specific techniques for information delivery and roles of different healthcare professionals. Varied levels of family involvement in decision-making were reported. Healthcare professionals used strategies to aid understanding and collaborative decision-making, such as highlighting the patient's deterioration, referring to patient wishes and tailoring information delivery. Doctors were regarded as responsible for discussing prognosis and decision-making, and nurses for providing individualized care. CONCLUSION: Findings suggest training could provide healthcare professionals with these strategies to improve communication. Interventions such as question prompt lists could help relatives overcome barriers to involvement in decision-making. Further research is needed to understand communication with relatives in different settings and with different healthcare professionals.


Assuntos
Comunicação , Pessoal de Saúde , Relações Profissional-Família , Assistência Terminal , Humanos , Pesquisa Qualitativa
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