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Biomedical subjects

Alistair Burns

Publications and source records attributed to Alistair Burns.

At least 19 recordsLinked to original sources

Access to diagnostic evaluation and treatment for dementia in Europe.

This paper reviews and discusses existing barriers to diagnosis and treatment for patients with dementia in Europe as well as approaches to overcome these barriers. The barriers to care are manifold, being present at all levels in each society and between countries in Europe. Multilevel and multifaceted strategies are needed to improve diagnosis and treatments for all patients with cognitive complaints. A multidisciplinary approach based on close collaboration between GPs and specialised memory clinics may be the ideal model for early accurate diagnosis and subsequently early pharmacological and psychosocial interventions. For all healthcare professionals, there should be specialised training in dementia and frequently updated practice guidelines to provide the framework for standards of care. Culture-sensitive strategies to promote public knowledge and destigmatize dementia are essential. Policy makers and authorities should be made aware of the benefits of early access to diagnosis and treatment.

Delivery of Health Care, Integrated↗

Old age mental health services in England: implementing the National Service Framework for Older People.

BACKGROUND: There is much variation in the services provided for older people with mental health problems. In England, the National Service Framework for Older People (NSFOP) sought to address these inconsistencies and improve care. This study describes the situation three years after its publication. METHODS: A postal survey of old age psychiatrists collected data on the NSFOP mental health model: the range of specialist mental health provision, the nature of the specialist:generic service interface and the degree of interdisciplinary/interagency working. RESULTS: Three hundred and eighteen (72%) consultants responded. Considerable differences existed in the deployment of key professionals within community teams, with more than a third lacking ring-fenced social work time. Few services had dedicated rehabilitation beds and nearly a third lacked separate facilities for people with organic and functional illnesses. Increasing numbers of consultants had access to a memory clinic and there was some suggestion that liaison services were developing, but little indication of increased support for care homes. Several services had yet to agree protocols with primary care, or to implement measures promoting effective information-sharing and integrated care, and there was little evidence that the introduction of the Single Assessment Process (SAP) had significantly changed practice. Although just over half of consultants reported that mental health services were improving, less than a quarter considered community provision adequate. CONCLUSIONS: Three years after the publication of the NSFOP there remained significant gaps in services for older people with mental health problems and substantial variation in provision between districts.

Aged↗

Knowledge of dementia among South Asian (Indian) older people in Manchester, UK.

OBJECTIVES: The aim of this study was to examine knowledge of dementia in South Asian older people, as compared with Caucasian older people. METHODS: Attendees, not known to suffer from dementia, of one South Asian and two predominantly Caucasian day centres for older people in Manchester (UK) were asked to complete the Dementia Knowledge Questionnaire (DKQ). The DKQ was translated into Gujarathi and Urdu by the professional translators. RESULTS: One hundred and ninety-one DKQs from Indian and 55 DKQs from Caucasian (white UK/Irish/European) older people were included in the analyses. Knowledge of dementia was poor in both Indian and Caucasian older people, especially so in the former. The median (25th-75th percentile) total DKQ scores were 3 (2-5) in Indians and 6 (3.5-9) in Caucasians (p < 0.001). Indian older people showed significantly less knowledge about basic aspects (p < 0.001) and epidemiology (p < 0.001) of dementia when compared to Caucasian older people. Both groups faired equally badly on questions about aetiology (p = 0.91) and symptomatology (p = 0.66). Indian older people were less aware of personality, reasoning, and speech being the affected in dementia (p < 0.001, p < 0.001 and p = 0.04, respectively). CONCLUSION: Indian older people in Manchester (UK) do not seem to have sufficient knowledge about dementia, which may be one of the reasons for their relative absence in the local dementia treatment clinics.

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Asymptomatic spontaneous cerebral emboli and cognitive decline in a cohort of older people: a prospective study.

BACKGROUND: Asymptomatic spontaneous cerebral emboli (SCE) are common in dementia and are associated with cognitive decline in dementia. The significance of their presence in older people is unknown. METHOD: We included 96 participants (mean (SD) age 76.8 (6.7) years, 46% female) who were the control group in a case-control study to evaluate SCE in dementia. Cognitive functioning was assessed prospectively over 2.5 years, using the MMSE and CAMCOG. RESULTS: The mean (SD) MMSE score was 28.7 (1.4) at baseline with an average (SD) drop of 0.79 (0.91) per year. The presence of SCE was not related to the annual drop in MMSE score, nor to the CAMCOG score at follow-up (p = 0.88 and p = 0.41, respectively). Linear regression analyses identified higher age in years (beta = 0.29, p = 0.003), history of stroke (beta = 0.31, p = 0.001) and carotid stenosis (beta = 0.28, p = 0.003) as independent predictors of cognitive decline. CONCLUSION: We found no association between the presence of SCE and subsequent cognitive decline in older people without dementia.

Aged↗

Treatment and prevention of depression after surgery for hip fracture in older people: randomized, controlled trials.

OBJECTIVES: To evaluate the effect of a psychiatric intervention in treating depression (treatment study) and the effect of a psychological treatment in preventing depression (prevention study) after hip fracture in older people. DESIGN: Two linked randomized, controlled trials. SETTING: Orthopedic units in Manchester, England. PARTICIPANTS: Two hundred ninety-three older people who had undergone surgery for a fractured hip: 121 in the treatment study and 172 in the prevention study. MEASUREMENTS: The Geriatric Depression Scale and Hospital Anxiety and Depression Scale for mood, functional tests for mobility and pain measures. RESULTS: There was a slight reduction in depressive symptoms in the active arm of the treatment study. In the prevention study, there was no significant difference in incident depression between the psychological intervention and treatment as usual. There were no differences in the functional and pain outcomes. CONCLUSION: The results from these two randomized, controlled trials show that, after hip fracture surgery, no statistically significant benefits can be achieved from a psychiatric intervention in people who are depressed or a psychological intervention to prevent the onset of depression.

Aged, 80 and over↗

Apolipoprotein E epsilon4 allele frequency and age at onset of Alzheimer's disease.

The age distribution of the epsilon4 allelic form of the apolipoprotein E gene (APOE) was investigated in 630 patients with Alzheimer's disease (AD) with onset age ranging from 35 to 90 years. Overall, mean age at onset in APOE epsilon4 allele bearers was significantly later than that in nonbearers. However, when stratified into early onset AD (EOAD) and late onset (LOAD) groups, mean age at onset in EOAD cases bearing APOE epsilon4 allele was later than that in those EOAD cases without epsilon4 allele, whereas in LOAD mean age at onset in cases bearing APOE epsilon4 allele was earlier than in those without epsilon4 allele. When analysed by decade, it was observed that 37% of the total number of APOE epsilon4 allele bearers, and 43% of total number of cases with APOE epsilon4/epsilon4 genotype fell into the 60-69 years age class. Hence, APOE epsilon4 allele frequency, at 0.44, was highest in the 60-69 years age class, progressively decreasing either side of this age group. APOE epsilon4 allele therefore has its maximum impact between onset ages of between 60 and 70 years.

Age of Onset↗

Virchow-Robin space dilatation may predict resistance to antidepressant monotherapy in elderly patients with depression.

BACKGROUND: Late-life depressive disorders have been linked to cerebrovascular disease (the vascular depression hypothesis). Treatment resistance may be associated with vascular-based lesions in the white matter and basal ganglia. Virchow-Robin spaces (VRS) are cerebrospinal fluid spaces associated with microangiopathy of small cerebral vessels. This study tested the hypothesis that dilation of Virchow-Robin spaces seen on Magnetic Resonance Imaging (MRI) is associated with treatment resistance in elderly depressed individuals. METHODS: 50 patients with late-onset (age over 60 years) major depressive disorder (29 responders to monotherapy, 21 non-responders to monotherapy) and 35 normal volunteers were recruited. Assessment of deep white matter lesions [WML] and periventricular hyperintensities [PVH] (both with the Scheltens rating scale score, [Scheltens, P., Barkhof, F., Leys, D., et al. (1993) A semiquantative rating scale for the assessment of signal hyperintensities on magnetic resonance imaging. J Neurol Sci;114(1):7-12.]) and the severity of VRS dilatation (using a new scale) were scored from MRI images. Statistical group comparisons and multiple regression analyses were performed to quantify the relationship between imaging features and clinical outcome. RESULTS: There was a trend for greater WML Scheltens scores in the monotherapy resistant group compared to responders and control subjects, but only using the basal ganglia VRS score was there a statistically significant difference. A score of 2 or greater on the VRS score was 80% sensitive and 62% specific in predicting non-response to antidepressant monotherapy. The VRS score accounted for 38% of the variance in the multiple regression model and the PVH score, which was an independent predictor of outcome, contributed another 6%. LIMITATIONS: Numbers are small and type II errors possible, especially for the Scheltens ratings. Treatment response was limited to response or non-response to monotherapy and was retrospectively derived. The VRS scale was originally designed for use in patients with vascular dementia and has not been used before in affective disorders. Although all depressed subjects were late-onset, it is possible that depression led to vascular disease rather than vice versa. CONCLUSION: VRS dilatation is common in diseases associated with microvascular abnormality, which is the presumed basis of vascular depression in the elderly. VRS score may be useful in determining which patients are less likely to respond to antidepressant monotherapy. Prospective studies of patients with a wider range of treatment responses are indicated.

Aged↗

Fear of falling more important than pain and depression for functional recovery after surgery for hip fracture in older people.

BACKGROUND: Depression and cognitive functioning have a negative impact on functional recovery after hip fracture surgery in older people, and the same has been suggested for pain and fear of falling. These variables, however, have never been studied together, nor has the timing of psychiatric assessment been taken into account. METHOD: Two parallel, randomized controlled trials were undertaken aiming to prevent and treat depression after hip fracture surgery in older people. Multiple logistic regression analyses corrected for age and pre-morbid level of functioning were performed to evaluate the effect of depressive symptoms (15-item Geriatric Depression Scale, GDS), pain (Wong-Baker pain scale), cognitive functioning (Mini-mental State Examination, MMSE) and fear of falling (Modified Falls Efficacy Scale, MFES) within 2 weeks after surgery and 6 weeks later on functional recovery at 6 months. Main outcome measures were performance-based measures (up-and-go test, gait test, functional reach) and the self-report Sickness Impact Profile (SIP) questionnaire to assess the impact of the hip fracture on activities of daily living (ADL). RESULTS: Two hundred and ninety-one patients participated and outcome measures for 187 (64%) patients were available at 6 months. All mental health variables interfered with functional recovery. However, in the final multivariate model, cognitive functioning and fear of falling assessed 6 weeks after surgery consistently predicted functional recovery, whereas pain and depressive symptoms were no longer significant. CONCLUSION: Fear of falling and cognitive functioning may be more important than pain and depression to predict functional recovery after hip fracture surgery. Rehabilitation strategies should take this into account.

Accidental Falls↗

Cerebral emboli as a potential cause of Alzheimer's disease and vascular dementia: case-control study.

OBJECTIVE: To compare the occurrence of spontaneous cerebral emboli and venous to arterial circulation shunts in patients with Alzheimer's disease or vascular dementia and controls without dementia. DESIGN: Cross sectional case-control study. SETTING: Secondary care old age psychiatry services, Manchester. PARTICIPANTS: 170 patients with dementia (85 with Alzheimer's disease, 85 with vascular dementia) and 150 age and sex matched controls. Patients on anticoagulant treatment, patients with severe dementia, and controls with marked cognitive impairment were excluded. MAIN OUTCOME MEASURES: Frequencies of detection of spontaneous cerebral emboli during one hour monitoring of the middle cerebral arteries with transcranial Doppler and venous to arterial circulation shunts by a transcranial Doppler technique using intravenous microbubbles as an ultrasound contrast. RESULTS: Spontaneous cerebral emboli were detected in 32 (40%) of patients with Alzheimer's disease and 31 (37%) of those with vascular dementia compared with just 12 each (15% and 14%) of their controls, giving significant odds ratios adjusted for vascular risk factors of 2.70 (95% confidence interval 1.18 to 6.21) for Alzheimer's disease and 5.36 (1.24 to 23.18) for vascular dementia. These spontaneous cerebral emboli were not caused by carotid disease, which was equally frequent in dementia patients and their controls. A venous to arterial circulation shunt indicative of patent foramen ovale was found in 27 (32%) Alzheimer's disease patients and 25 (29%) vascular dementia patients compared with 19 (22%) and 17 (20%) controls, giving non-significant odds ratios of 1.57 (0.80 to 3.07) and 1.67 (0.81 to 3.41). CONCLUSION: Spontaneous cerebral emboli were significantly associated with both Alzheimer's disease and vascular dementia. They may represent a potentially preventable or treatable cause of dementia.

Aged↗

Apolipoprotein E epsilon4 allele frequency in vascular dementia.

AIM: The aim of the study was to investigate whether possession of the epsilon4 allelic form of the apolipoprotein E (APOE) gene increases the risk of developing vascular dementia (VaD). METHODS: APOE allele and genotype frequencies were determined by PCR in 89 patients with possible and probable VaD and compared with those in 97 patients with possible and probable Alzheimer's disease (AD) of similar age of disease onset and ethnic background, and with 766 control subjects drawn from the same geographical region. RESULTS: The APOE epsilon4 allele frequency in all 97 patients with possible and probable AD was significantly higher (p < 0.001) than that in control subjects. However, the APOE epsilon4 allele frequency in all 89 patients with possible and probable VaD was also significantly higher (p < 0.001) than that in control subjects, but not significantly different from that in AD. The APOE epsilon4 allele frequency was similarly, and still significantly (p < 0.001), increased when only those patients with probable AD or probable VaD were considered. CONCLUSION: Possession of APOE epsilon4 allele increases the risk of VaD.

Age of Onset↗

Integrated specialist assessment of older people and predictors of care-home admission.

BACKGROUND: Effective community-based care for older people requires the integration of assessment approaches by old age psychiatry, geriatric medicine and social services care management. This study examines the value of such collaboration in the assessment of older people at risk of entering care homes. METHOD: A randomized controlled trial of integrated assessment (care management with additional clinical assessment by old age psychiatrist or geriatrician) versus care management assessment only, for older people at risk of care-home admission. Older people's characteristics, physical and cognitive functioning, depression, behaviour and quality of care measures were recorded at assessment and 6 months. Differences in clinicians' and care managers' recommendations and placement rates between experimental and control groups were analysed. Logistic regression, examining associations between different needs-related characteristics and the likelihood of care-home admission, was used to characterize placement decisions. RESULTS: Clinicians recommended fewer older people for placement than did care managers in their usual assessments (a reduction of 85%). This did not, however, translate into a reduction in actual numbers of placements, although placements were delayed in those receiving the integrated assessment. Placements of those receiving the integrated assessment were influenced more by clinical factors, most notably cognitive impairment, which clinicians detected more readily than care managers. CONCLUSIONS: In this at-risk group, integrated assessment offers a means of potentially both delaying care-home admissions and taking account of a wider range of factors in placement decisions. Such an approach is viewed as an important policy goal both in the UK and internationally.

Affect↗

'Justifiable depression': how primary care professionals and patients view late-life depression? A qualitative study.

BACKGROUND: Depression is the commonest mental health problem in elderly people and continues to be underdiagnosed and undertreated. AIM: To explore the ways that primary care professionals and patients view the causes and management of late-life depression. DESIGN: A qualitative study using semistructured interviews. SETTING: One Primary Care Trust in North West England. PARTICIPANTS: Fifteen primary care practitioners comprising nine GPs, three practice nurses, two district nurses and one community nurse; twenty patients who were over the age of 60 and who were participating in a feasibility study of a new model of care for late-life depression [PRIDE Trial: PRimary care Intervention for Depression in the Elderly (a feasibility study in Central Manchester funded by the Department of Health)]. RESULTS: Primary care practitioners conceptualized late-life depression as a problem of their everyday work, rather than as an objective diagnostic category. They described depression as part of a spectrum including loneliness, lack of social network, reduction in function and viewed depression as 'understandable' and 'justifiable'. This view was shared by patients. Therapeutic nihilism, the feeling that nothing could be done for this group of patients, was a feature of all primary care professionals' interviews. Patients' views were characterized by passivity and limited expectations of treatment. Depression was not viewed as a legitimate illness to be taken to the GP. Primary care professionals recognized that managing late-life depression did fall within their remit, but identified limitations in their own skills and capabilities in this area, as well as a lack of other resources to which they could refer patients. CONCLUSION: This study highlights the complicated nature of the diagnosis and management of late-life depression. Protocols for the diagnosis and treatment of depression emphasis the biomedical model which does not fit with the everyday experience of GPs or elderly patients who share the views of primary care professionals that depression is a consequence of social and contextual issues. There is a need for the development of evidence-based provision for older people with depression within primary care, but also a need for elderly patients to be made aware of the legitimacy of presenting low mood and misery to their primary care professional.

Anecdotes as Topic↗

Prognosis of late life depression: a three-year cohort study of outcome and potential predictors.

BACKGROUND: Late-onset depression (LOD) has a poor prognosis which may be worsened by the presence of cerebrovascular disease. Few studies have explored prospectively the influence of vascular risk factors on longer term prognosis. METHODS: The original study involved 50 patients with LOD and 35 healthy age matched controls. Follow-up was at three years. Baseline measures included clinical, neuroradiological and neuropsychological variables. Outcome was assessed by mortality, progression to dementia and clinical course of depressive disorder. RESULTS: Sixty-two (73%) of the original cohort agreed to be re-interviewed. Seven participants had died (all from the depressed group) and six developed dementia, all but one from the depressed group. Vascular dementia predominated (although not significantly so) among those with dementia at follow-up. For 28 depressed patients with complete follow-up data (56% of the original sample), poor outcome was predicted by lower High Density Lipoprotein (HDL), raised Erythrocyte Sedimentation Rate (ESR) and a higher score on the Hachinski Index scale and one test of immediate memory. Initial response to treatment was not associated with later outcome. CONCLUSION: Late-onset depressive disorder is associated with a high rate of mortality and possibly dementia. Biochemical and inflammatory markers may be important in prognosis and their role should be confirmed in future studies.

Age of Onset↗

Cholinesterase inhibitors for Alzheimer's disease: variations in clinical practice in the north-west of England.

BACKGROUND: In the UK, the National Institute for Health and Clinical Excellence (NICE) is currently reviewing cost-effectiveness of cholinesterase inhibitors (ChEIs) for Alzheimer's disease (AD) in the NHS. The implementation of the original NICE (2001) guidance that made these drugs available in the UK was not examined in this review process, and was the objective of this study. METHOD: Ten hospitals in and around Manchester participated in the audit. Case records of all patients who were started on ChEIs between January 2002 and the date of the audit (November 2003 to December 2004) were examined to assess adherence to the NICE (2001) guidance. Information about available resources was gathered from lead clinicians of each hospital. RESULTS: A total of 1,092 case records were examined. The treatment of AD with ChEIs varied considerably with regard to pre-treatment investigations, waiting period for treatment, scales used to assess efficacy, adherence to the NICE (2001) guidance, and available resources. The actual number of patients with mild to moderate AD receiving ChEIs was much lower than that expected from known prevalence rates. Non-uniformity of clinical practice and missing data were the main limitations of the audit. CONCLUSION: There is a need to harmonise the use and monitoring of ChEIs for AD in the NHS so that the data from routine clinical practice could feed into future clinical and cost-effectiveness analyses.

Aged↗

Deletion/insertion polymorphism of the angiotensin-converting enzyme gene and white matter hyperintensities in dementia: A pilot study.

OBJECTIVES: To examine the association between the angiotensin-converting enzyme (ACE) deletion/insertion (D/I) polymorphism and white matter hyperintensities (WMHs) in patients with dementia. DESIGN: Observational pilot study with adjustment for potential confounders using analysis of covariance. SETTING: Secondary care old-age psychiatry services in greater Manchester, United Kingdom. PARTICIPANTS: Ninety-seven patients with dementia: 49 with Alzheimer's disease (AD, National Institute of Neurological and Communicative Disorders and Stroke/Alzheimer's Disease and Related Disorders Association criteria) and 48 with vascular dementia (VaD, National Institute of Neurological Disorders and Stroke/Association Internationale pour la Recherche et l'Enseignement en Neurosciences criteria). MEASUREMENTS: The ACE D/I polymorphism, WMHs (deep WMHs (DWMHs) and periventricular hyperintensities (PVHs)) on T2-weighted magnetic resonance imaging, and potential cardiovascular confounders. RESULTS: The D/D polymorphism of the ACE genotype was associated with severity of DWMH (P = .005) but not PVH (P = .34), corrected for age, cardiovascular risk factors, and type of dementia. Post hoc analyses were limited by statistical power but suggested an interaction with the apolipoprotein E epsilon4 allele. CONCLUSION: The results support previous observations that genetic factors influence the development of WMHs in dementia. The involvement of the ACE D/I polymorphism in the pathogenesis of DWMHs in dementia (AD and VaD), by a mechanism that is independent of its association with cardiovascular risk factors, should be confirmed in a large population-based sample.

Aged↗