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1.
N Engl J Med ; 382(7): 632-643, 2020 02 13.
Artigo em Inglês | MEDLINE | ID: mdl-32053299

RESUMO

BACKGROUND: An outbreak of listeriosis was identified in South Africa in 2017. The source was unknown. METHODS: We conducted epidemiologic, trace-back, and environmental investigations and used whole-genome sequencing to type Listeria monocytogenes isolates. A case was defined as laboratory-confirmed L. monocytogenes infection during the period from June 11, 2017, to April 7, 2018. RESULTS: A total of 937 cases were identified, of which 465 (50%) were associated with pregnancy; 406 of the pregnancy-associated cases (87%) occurred in neonates. Of the 937 cases, 229 (24%) occurred in patients 15 to 49 years of age (excluding those who were pregnant). Among the patients in whom human immunodeficiency virus (HIV) status was known, 38% of those with pregnancy-associated cases (77 of 204) and 46% of the remaining patients (97 of 211) were infected with HIV. Among 728 patients with a known outcome, 193 (27%) died. Clinical isolates from 609 patients were sequenced, and 567 (93%) were identified as sequence type 6 (ST6). In a case-control analysis, patients with ST6 infections were more likely to have eaten polony (a ready-to-eat processed meat) than those with non-ST6 infections (odds ratio, 8.55; 95% confidence interval, 1.66 to 43.35). Polony and environmental samples also yielded ST6 isolates, which, together with the isolates from the patients, belonged to the same core-genome multilocus sequence typing cluster with no more than 4 allelic differences; these findings showed that polony produced at a single facility was the outbreak source. A recall of ready-to-eat processed meat products from this facility was associated with a rapid decline in the incidence of L. monocytogenes ST6 infections. CONCLUSIONS: This investigation showed that in a middle-income country with a high prevalence of HIV infection, L. monocytogenes caused disproportionate illness among pregnant girls and women and HIV-infected persons. Whole-genome sequencing facilitated the detection of the outbreak and guided the trace-back investigations that led to the identification of the source.


Assuntos
Surtos de Doenças , Doenças Transmitidas por Alimentos/epidemiologia , Listeria monocytogenes/isolamento & purificação , Listeriose/epidemiologia , Produtos da Carne/microbiologia , Adolescente , Adulto , Idoso , Técnicas de Tipagem Bacteriana , Estudos de Casos e Controles , Feminino , Doenças Transmitidas por Alimentos/etiologia , Doenças Transmitidas por Alimentos/mortalidade , Infecções por HIV/complicações , HIV-1 , Humanos , Recém-Nascido , Listeria monocytogenes/genética , Listeriose/etiologia , Listeriose/mortalidade , Masculino , Produtos da Carne/efeitos adversos , Pessoa de Meia-Idade , Gravidez , Complicações Infecciosas na Gravidez/epidemiologia , Recall e Retirada de Produto , Distribuição por Sexo , África do Sul/epidemiologia , Sequenciamento Completo do Genoma , Adulto Jovem
2.
Int J Geriatr Psychiatry ; 35(3): 290-301, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31876069

RESUMO

OBJECTIVES: DETERMIND (DETERMinants of quality of life, care and costs, and consequences of INequalities in people with Dementia and their carers) is designed to address fundamental, and, as yet unanswered questions about inequalities, outcomes and costs following diagnosis with dementia. These answers are needed to improve the quality of care and equity of access to care, and therefore the quality of life, of people with dementia and their carers. METHOD: DETERMIND is a programme of research consisting of seven complementary workstreams (WS) exploring various components that may result in unequal dementia care: WS1: Recruitment and follow-up of the DETERMIND cohort-900 people with dementia and their carers from three geographically and socially diverse sites within six months following diagnosis, and follow them up for three years. WS2: Investigation of the extent of inequalities in access to dementia care. WS3: Relationship between use and costs of services and outcomes. WS4: Experiences of self-funders of care. WS5: Decision-making processes for people with dementia and carers. WS6: Effect of diagnostic stage and services on outcomes. WS7: Theory of Change informed strategy and actions for applying the research findings. OUTCOMES: During the life of the programme, analysing baseline results and then follow-up of the DETERMIND cohort over 3 years, we will establish evidence on current services and practice. DETERMIND will deliver novel, detailed data on inequalities in dementia care and what drives positive and negative outcomes and costs for people with dementia and carers, and identify factors that help or hinder living well with dementia.


Assuntos
Cuidadores , Demência , Análise Custo-Benefício , Demência/terapia , Humanos , Qualidade da Assistência à Saúde , Qualidade de Vida , Fatores Socioeconômicos
3.
Zootaxa ; 5169(1): 31-48, 2022 Jul 27.
Artigo em Inglês | MEDLINE | ID: mdl-36101256

RESUMO

A new genus, Diplopathes, in the family Schizopathidae, and three new species are described from the Southwest Pacific and Antarctic region based on morphological data. The new genus superficially resembles Telopathes in being branched and having simple, bilateral pinnules, but differs in having strictly alternately arranged pinnules, and in having small polyps 4 mm or less in transverse diameter. Mitochondrial DNA placed Diplopathes and Telopathes in separate clades within the Schizopathidae, thus supporting the significance of seemingly subtle anatomical differences. The new species are: D. antarctica, with sparse branching, pinnules of up to 7 cm long, and polypar spines up to 0.045 mm tall; D. multipinnata, with dense branching, pinnules up to 3 cm long, and polypar spines up to 0.1 mm tall; and D. tuatoruensis, with very sparse branching, pinnules up to 10 cm long, and polypar spines up to 0.1 mm. Interestingly, the three new species do not form a monophyletic clade based on mitochondrial DNA. We propose and discuss two hypotheses to explain the results of the phylogenetic reconstruction, including that molecular and physical change are uncoupled or that we have uncovered another example of morphological convergence in unrelated species.


Assuntos
Antozoários , Animais , Regiões Antárticas , DNA Mitocondrial/genética , Filogenia
4.
Front Public Health ; 10: 1035415, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36530697

RESUMO

Background: Long-term exposure to air pollution concentrations is known to be adversely associated with a broad range of single non-communicable diseases, but its role in multimorbidity has not been investigated in the UK. We aimed to assess associations between long-term air pollution exposure and multimorbidity status, severity, and patterns using the UK Biobank cohort. Methods: Multimorbidity status was calculated based on 41 physical and mental conditions. We assessed cross-sectional associations between annual modeled particulate matter (PM)2.5, PMcoarse, PM10, and nitrogen dioxide (NO2) concentrations (µg/m3-modeled to residential address) and multimorbidity status at the baseline assessment (2006-2010) in 364,144 people (mean age: 52.2 ± 8.1 years, 52.6% female). Air pollutants were categorized into quartiles to assess dose-response associations. Among those with multimorbidity (≥2 conditions; n = 156,395) we assessed associations between air pollutant exposure levels and multimorbidity severity and multimorbidity patterns, which were identified using exploratory factor analysis. Associations were explored using generalized linear models adjusted for sociodemographic, behavioral, and environmental indicators. Results: Higher exposures to PM2.5, and NO2 were associated with multimorbidity status in a dose-dependent manner. These associations were strongest when we compared the highest air pollution quartile (quartile 4: Q4) with the lowest quartile (Q1) [PM2.5: adjusted odds ratio (adjOR) = 1.21 (95% CI = 1.18, 1.24); NO2: adjOR = 1.19 (95 % CI = 1.16, 1.23)]. We also observed dose-response associations between air pollutant exposures and multimorbidity severity scores. We identified 11 multimorbidity patterns. Air pollution was associated with several multimorbidity patterns with strongest associations (Q4 vs. Q1) observed for neurological (stroke, epilepsy, alcohol/substance dependency) [PM2.5: adjOR = 1.31 (95% CI = 1.14, 1.51); NO2: adjOR = 1.33 (95% CI = 1.11, 1.60)] and respiratory patterns (COPD, asthma) [PM2.5: adjOR = 1.24 (95% CI = 1.16, 1.33); NO2: adjOR = 1.26 (95% CI = 1.15, 1.38)]. Conclusions: This cross-sectional study provides evidence that exposure to air pollution might be associated with having multimorbid, multi-organ conditions. Longitudinal studies are needed to further explore these associations.


Assuntos
Poluentes Atmosféricos , Poluição do Ar , Feminino , Humanos , Adulto , Pessoa de Meia-Idade , Masculino , Dióxido de Nitrogênio/análise , Estudos Transversais , Multimorbidade , Bancos de Espécimes Biológicos , Exposição Ambiental/efeitos adversos , Poluição do Ar/efeitos adversos , Poluição do Ar/análise , Material Particulado/análise , Poluentes Atmosféricos/análise , Reino Unido/epidemiologia
5.
Alzheimers Dement (N Y) ; 8(1): e12236, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35509503

RESUMO

Introduction: COVID-19 has impacted people with dementia and their family carers, yet little is known about effects on overall quality of life. Methods: In a UK cohort study, pre- and post-pandemic data were collected from 114 carers and 93 recently diagnosed people with dementia. Latent growth curve modeling examined change in quality of life. Results: Carers reported significant decline in quality of life, although no change was demonstrated by people with dementia. In multivariable analyses, higher levels of cognitive impairment, deprivation, study site, and lower number of memory clinic contacts were associated with greater decline in carer quality of life. Discussion: Maintaining life quality for people with dementia during the pandemic appears to have come at the expense of their family carers. This inequity has fallen hardest on those caring for people with more severe dementia, in deprived areas, and with least support from memory services. These effects may be prevented or reversed by post-diagnostic care.

6.
BJPsych Open ; 7(4): e127, 2021 Jul 09.
Artigo em Inglês | MEDLINE | ID: mdl-36043689

RESUMO

BACKGROUND: People with schizophrenia have shortened lives. This excess mortality seems to be related to physical health conditions that may be amenable to better primary and secondary prevention. Better continuity of care may enhance such interventions as well as help prevent death by self-injury. AIMS: We set out to examine the relationship between the continuity of care of patients with schizophrenia, their mortality and cause of death. METHOD: Pseudoanonymised community data from 5551 people with schizophrenia presenting over 11 years were examined for changes in continuity of care using the numbers of community teams caring for them and the Modified Modified Continuity Index. These and demographic variables were related to death certifications of physical illness from the Office of National Statistics and mortal self-injury from clinical data. Data were analysed using generalised estimating equations. RESULTS: We found no independent relationship between levels of continuity of care and overall mortality. However, lower levels of relationship continuity were significantly and independently related to death by self-injury. CONCLUSIONS: We found no evidence that continuity of care is important in the prevention of physical causes of death in schizophrenia. However, there is evidence that declining relationship continuity of care has an independent effect on deaths as a result of self-injury. We suggest that there should be more attention focused on the improvement of continuity of care for these patients.

7.
Lancet Reg Health Eur ; 8: 100149, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34557851

RESUMO

BACKGROUND: We aimed to identify specific patterns of physical multimorbidity, defined as the presence of two or more physical long-term conditions, and to examine the extent to which these specific patterns could predict future incident and persistent common mental health disorders (CMDs) in middle-aged adults enrolled in the UK Biobank. METHODS: We assessed prospective associations between physical multimorbidity status at the baseline assessment (2006-2010) and depression and anxiety 'caseness' according to the Patient Health Questionnaire (PHQ)-9 and the Generalised Anxiety Disorder Assessment (GAD)-7 at the follow-up assessment (2016) in 154,367 middle-aged adults enrolled in the UK Biobank (median age: 57 years, interquartile range = 50-62 years, 56.5% female, mean duration of follow-up: 7.6 years, standard deviation = 0.87). Patterns of physical multimorbidity were identified using exploratory factor analysis. Logistic regression was used to assess prospective associations between physical multimorbidity patterns at baseline and both incident and persistent depression and anxiety at follow-up. FINDINGS: Compared to those with no physical multimorbidity, having two (adjusted odds ratio (aOR) =1.41, 95%CI 1.32 to 1.53), three (aOR = 1.94, 95%CI 1.76 to 2.14), four (aOR = 2.38, 95%CI 2.07 to 2.74), and five or more (aOR = 2.89, 95%CI 2.42 to 3.45) physical conditions was prospectively associated with incident depression at follow-up in a dose response manner. Similar trends emerged for incident anxiety, persistent depression, and persistent anxiety, but associations were strongest for incident CMDs. Regarding specific patterns of physical MM, the respiratory pattern (aOR = 3.23, 95%CI 2.44 to 4.27) and the pain/gastrointestinal pattern (aOR = 2.19, 95%CI 1.92 to 2.50) emerged as the strongest predictors of incident depression. Similar results emerged for incident anxiety. INTERPRETATION: These findings highlight patterns of physical multimorbidity with the poorest prognosis for both emerging and persisting depression and anxiety. These findings might have significant implications for the implementation of integrated mental and physical healthcare and facilitate the development of targeted preventative interventions and treatment for those with physical multimorbidity. FUNDING: AR is supported by Guy's Charity grant number EIC180702; JAT is funded by Medical Research Council (MRC) number MR/SO28188/1; AD is funded by Guy's Charity grant number EIC180702 and MRC grant number MR/SO28188/1. JD is part supported by the ESRC Centre for Society and Mental Health at King's College London (ES/S012567/1), grants from the ESRC (ES/S002715/1), by the Health Foundation working together with the Academy of Medical Sciences, for a Clinician Scientist Fellowship, and by the National Institute for Health Research (NIHR) Biomedical Research Centre at South London and Maudsley NHS Foundation Trust and King's College London and the National Institute for Health Research (NIHR) Applied Research Collaboration South London (NIHR ARC South London) at King's College Hospital NHS Foundation Trust. The views expressed are those of the author[s] and not necessarily those of the ESRC, NIHR, the Department of Health and Social Care or King's College London.

8.
J Alzheimers Dis ; 67(3): 995-1005, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30776008

RESUMO

BACKGROUND: Dementia with Lewy bodies (DLB) is the second most common degenerative dementia in older people. However, rates of misdiagnosis are high, and little is known of its natural history and outcomes. Very few previous studies have been able to access routine clinical information for large, unbiased DLB cohorts in order to establish initial presentation, neuropsychological profile, and mortality. OBJECTIVE: To examine in detail, symptom patterns at presentation and their association with outcomes, including mortality, in a large naturalistic DLB cohort from a secondary care sample. METHODS: A retrospective cohort design was used to identify a DLB cohort (n = 251) from Cambridgeshire and Peterborough NHS Foundation Trust (CPFT). Information relating to first consultation, diagnosis, and DLB diagnostic features were extracted. RESULTS: A wide range of presenting complaints and differential initial diagnoses were identified for the cohort. Along with memory loss (27.1%) and hallucinations (25.4%), low mood (25.1%) was noted as a key presenting complaint among the DLB cohort. Rates of REM sleep disorder were considerably lower (8.4%) than would be expected. Deficits in non-amnestic cognitive domains were associated with reduced mortality compared with amnestic-only presentations. CONCLUSION: Individuals later diagnosed with DLB present initially to secondary care with a wide range of symptoms and complaints, some of which are not immediately suggestive of a DLB diagnosis. More examinations of large cohorts such as this are needed to further elucidate the complex presentation and clinical course of DLB, and to confirm whether amnestic-only presentation confers a worse outcome.


Assuntos
Doença por Corpos de Lewy/patologia , Idoso , Idoso de 80 Anos ou mais , Diagnóstico Diferencial , Progressão da Doença , Feminino , Humanos , Doença por Corpos de Lewy/diagnóstico , Doença por Corpos de Lewy/mortalidade , Masculino , Testes de Estado Mental e Demência , Estudos Retrospectivos , Privação do Sono/diagnóstico , Análise de Sobrevida
9.
Nat Hum Behav ; 3(1): 24-32, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-30932051

RESUMO

Accessibility of powerful computers and availability of so-called big data from a variety of sources means that data science approaches are becoming pervasive. However, their application in mental health research is often considered to be at an earlier stage than in other areas despite the complexity of mental health and illness making such a sophisticated approach particularly suitable. In this Perspective, we discuss current and potential applications of data science in mental health research using the UK Clinical Research Collaboration classification: underpinning research; aetiology; detection and diagnosis; treatment development; treatment evaluation; disease management; and health services research. We demonstrate that data science is already being widely applied in mental health research, but there is much more to be done now and in the future. The possibilities for data science in mental health research are substantial.


Assuntos
Pesquisa Biomédica , Ciência de Dados , Transtornos Mentais/diagnóstico , Transtornos Mentais/terapia , Humanos , Transtornos Mentais/etiologia
10.
Phys Med ; 60: 174-181, 2019 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-31000080

RESUMO

PURPOSE: To characterize reproducibility of patient breath-hold positioning and compare tracking system performance for Deep Inspiration Breath Hold (DIBH) gated left breast radiotherapy. METHODS: 29 consecutive left breast DIBH patients (655 fractions) were treated under the guidance of Calypso surface beacons with audio-feedback and 35 consecutive patients (631 fractions) were treated using C-RAD Catalyst HD surface imaging with audiovisual feedback. The Calypso system tracks a centroid determined by two radio-frequency transponders, with a manually enforced institutional tolerance, while the surface image based CatalystHD system utilizes real-time biometric feedback to track a pre-selected point with an institutional tolerance enforced by the Elekta Response gating interface. DIBH motion data from Calypso was extracted to obtain the displacement of breath hold marker in ant/post direction from a set-zero reference point. Ant/post point displacement data from CatalystHD was interpreted by computing the difference between raw tracking points and the center of individual gating windows. Mean overall errors were compared using Welsh's unequal variance t-test. Wilcoxon rank sum test were used for statistical analysis with P < 0.05 considered significant. RESULTS: Mean overall error for Calypso and CatalystHD were 0.33 ±â€¯1.17 mm and 0.22 ±â€¯0.43 mm, respectively, with t-test comparison P-value < 0.034. Absolute errors for Calypso and CatalystHD were 0.95 ±â€¯0.75 mm and 0.38 ±â€¯0.30 mm, respectively, with Wilcoxon rank sum test P-value <2×10-16. Average standard deviation per fraction was found to be 0.74 ±â€¯0.44 mm for Calypso patients versus 0.54 ±â€¯0.22 mm for CatalystHD. CONCLUSION: Reduced error distribution widths in overall positioning, deviation of position, and per fraction deviation suggest that the use of functionalities available in CatalystHD such as audiovisual biofeedback and patient surface matching improves accuracy and stability during DIBH gated left breast radiotherapy.


Assuntos
Neoplasias da Mama/radioterapia , Mama/diagnóstico por imagem , Suspensão da Respiração , Posicionamento do Paciente , Radioterapia Guiada por Imagem/métodos , Algoritmos , Biometria/métodos , Mama/fisiopatologia , Neoplasias da Mama/diagnóstico por imagem , Neoplasias da Mama/fisiopatologia , Retroalimentação , Humanos , Inalação , Movimento (Física) , Posicionamento do Paciente/métodos , Planejamento da Radioterapia Assistida por Computador/instrumentação , Planejamento da Radioterapia Assistida por Computador/métodos , Radioterapia Guiada por Imagem/instrumentação , Reprodutibilidade dos Testes , Estudos Retrospectivos , Tecnologia sem Fio
11.
J Am Geriatr Soc ; 66(10): 1956-1962, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-30221750

RESUMO

OBJECTIVES: To investigate the association between African and Native American genomic ancestry and long-term cognitive trajectories in admixed Brazilians. DESIGN: Population-based longitudinal study. SETTING: Bambui-Epigen (Brazil) cohort study. PARTICIPANTS: Adults aged 60 and older (N=1,215) MEASUREMENTS: Participants were followed from January 1997 to December 2011. Cognitive function was assessed annually using the Mini-Mental State Examination (MMSE), totaling 12,208 measurements. We used linear mixed-effects pattern models to assess MMSE score trajectories. Ancestry was assessed using a genome-wide approach. RESULTS: After adjustments for covariates, the highest quintile of African ancestry was associated with poorer baseline cognitive performance (ß=-0.73, 95% confidence interval (CI)=-1.36 to -0.11) but not with cognitive trajectory. Educational level modified the baseline association between highest African ancestry and cognitive performance in that the association was observed only in those with very low (<4 years) education (ß=-1.13, 95% CI=-2.02 to -0.23). No association was found between Native American ancestry and baseline cognitive function or its trajectory. CONCLUSION: Genomic African and Native American ancestry levels had no prognostic value for age-related cognitive decline in this admixed population.


Assuntos
População Negra/genética , Cognição , Disfunção Cognitiva/etnologia , Disfunção Cognitiva/genética , Indígenas Norte-Americanos/genética , Adulto , Idoso , Idoso de 80 Anos ou mais , Envelhecimento/etnologia , Envelhecimento/genética , Brasil/epidemiologia , Disfunção Cognitiva/epidemiologia , Escolaridade , Feminino , Estudo de Associação Genômica Ampla , Genômica , Humanos , Modelos Lineares , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Fatores de Risco
12.
Psychosom Med ; 69(6): 543-50, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-17636148

RESUMO

OBJECTIVES: To determine a) the associations between diabetes and common mental disorders in a nationally representative sample and the effect of key covariates on such associations and b) the association of comorbid common mental disorders on the quality of life and diabetes self-care indicators. METHODS: In a cross-sectional survey, people with diabetes were identified from a sample of 8580 individuals aged 16 to 74 years, drawn from the 2000 UK National Psychiatric Morbidity Survey. Diabetes was ascertained by self-report and prescribed medications. Psychiatric morbidity was assessed using the Revised Clinical Interview Schedule. Quality of life was measured using the Short Form-12, and questions were asked regarding diabetes self-care and functioning. RESULTS: A total of 249 individuals were identified with diabetes. People with diabetes were more likely to suffer from common mental disorders (odds ratio (OR) = 1.5; 95% Confidence Interval (CI): 1.1-2.2; p < .05), and in particular mixed anxiety and depression (OR: 1.7; 95% CI: 1.1-2.6; p < .05), after controlling for age, gender, ethnicity, and socioeconomic status. The increased risk was uniform across diabetes subtypes. Among people with diabetes, common mental disorders were significantly associated with impaired health-related quality of life, more days off work, nonadherence, and difficulties with diabetes self-care. CONCLUSIONS: People with diabetes are more likely to suffer from common mental disorders, a finding which is highly relevant, given that psychiatric comorbidity in people with diabetes is also associated with higher levels of functional impairment, impaired quality of life, and difficulties with diabetes self-care.


Assuntos
Diabetes Mellitus/epidemiologia , Transtornos Mentais/epidemiologia , Qualidade de Vida , Autocuidado , Atividades Cotidianas , Adolescente , Adulto , Idoso , Comorbidade , Estudos Transversais , Inglaterra/epidemiologia , Feminino , Serviços de Saúde/estatística & dados numéricos , Humanos , Acontecimentos que Mudam a Vida , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Prevalência , Escócia/epidemiologia , Fatores Socioeconômicos , País de Gales/epidemiologia
13.
Age Ageing ; 36(6): 613-8, 2007 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-17965033

RESUMO

Delirium is not only one of the most common complications that older patients develop after admission to hospital but it is also one of the most serious. Although stroke is a known predisposing factor for delirium, few studies have investigated this association and results from existing studies give conflicting results with prevalence estimates ranging from 13 to 48%. The aetiology of delirium post-stroke is poorly understood. There is no consensus on the best screening tool to use to detect delirium in the post-stroke setting. Specific stroke types may be more likely to precipitate delirium than others, for example, delirium is more frequent after intracerebral haemorrhage and total anterior circulation infarction (TACI). In addition, case reports have suggested that delirium may be associated with specific lesions, for example, in the thalamus and caudate nucleus. There is a lack of intervention data in both the prevention and treatment of delirium post-stroke. However, it is known that the development of delirium post-stroke has grave prognostic implications. It is associated with longer stay in hospital, increased mortality and increased risk of institutionalisation post discharge. In this article, we review the literature to date on delirium in the acute stroke setting.


Assuntos
Delírio/etiologia , Acidente Vascular Cerebral/complicações , Idoso , Idoso de 80 Anos ou mais , Delírio/diagnóstico , Delírio/terapia , Feminino , Humanos , Incidência , Masculino , Fatores de Risco , Acidente Vascular Cerebral/fisiopatologia , Resultado do Tratamento
14.
PLoS One ; 12(1): e0164608, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28095412

RESUMO

BACKGROUND: Stroke is associated with the development of cognitive impairment and dementia. We assessed the effect of intensive blood pressure (BP) and/or lipid lowering on cognitive outcomes in patients with recent stroke in a pilot trial. METHODS: In a multicentre, partial-factorial trial, patients with recent stroke, absence of dementia, and systolic BP (SBP) 125-170 mmHg were assigned randomly to at least 6 months of intensive (target SBP <125 mmHg) or guideline (target SBP <140 mmHg) BP lowering. The subset of patients with ischaemic stroke and total cholesterol 3.0-8.0 mmol/l were also assigned randomly to intensive (target LDL-cholesterol <1.3 mmol/l) or guideline (target LDL-c <3.0 mmol/l) lipid lowering. The primary outcome was the Addenbrooke's Cognitive Examination-Revised (ACE-R). RESULTS: We enrolled 83 patients, mean age 74.0 (6.8) years, and median 4.5 months after stroke. The median follow-up was 24 months (range 1-48). Mean BP was significantly reduced with intensive compared to guideline treatment (difference -10·6/-5·5 mmHg; p<0·01), as was total/LDL-cholesterol with intensive lipid lowering compared to guideline (difference -0·54/-0·44 mmol/l; p<0·01). The ACE-R score during treatment did not differ for either treatment comparison; mean difference for BP lowering -3.6 (95% CI -9.7 to 2.4), and lipid lowering 4.4 (95% CI -2.1 to 10.9). However, intensive lipid lowering therapy was significantly associated with improved scores for ACE-R at 6 months, trail making A, modified Rankin Scale and Euro-Qol Visual Analogue Scale. There was no difference in rates of dementia or serious adverse events for either comparison. CONCLUSION: In patients with recent stroke and normal cognition, intensive BP and lipid lowering were feasible and safe, but did not alter cognition over two years. The association between intensive lipid lowering and improved scores for some secondary outcomes suggests further trials are warranted. TRIAL REGISTRATION: ISRCTN ISRCTN85562386.


Assuntos
Pressão Sanguínea/efeitos dos fármacos , Transtornos Cognitivos/prevenção & controle , Hipolipemiantes/uso terapêutico , Lipídeos/sangue , Guias de Prática Clínica como Assunto , Acidente Vascular Cerebral/complicações , Idoso , Transtornos Cognitivos/etiologia , Feminino , Humanos , Masculino , Estudos Prospectivos , Reabilitação do Acidente Vascular Cerebral
15.
Int J Soc Psychiatry ; 52(4): 376-91, 2006 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-17262983

RESUMO

BACKGROUND: The ethnic density effect describes a phenomenon whereby adverse mental health outcomes among individuals from ethnic minorities are greater in neighbourhoods where they comprise a smaller proportion of the population. Most previous studies of the ethnic density effect have been quantitative in design, and thus have only been able to speculate on some of the underlying mechanisms explaining this phenomenon. AIMS: This paper attempts to remedy this deficit, using in-depth qualitative methodology to explore mechanisms underlying the ethnic density effect. METHODS: We chose an inner-London electoral ward, Gospel Oak, with a relatively low proportion of ethnic minorities, as a case study. Thirty-two residents, eight of whom were from minority ethnic groups, participated in either focus groups or in-depth interviews. We also conducted participant observation and collected relevant quantitative data. RESULTS: We found four principal overlapping mechanisms that may help to explain why minorities living in predominantly white electoral wards may have greater risk of adverse mental health outcomes. These were perceived exclusion from local networks, a need to rely on geographically dispersed culturally specific services and facilities, perceived risk of physical and psychological intimidation and damaging effects of everyday racism. CONCLUSIONS: These mechanisms are presented as a framework, grounded in a qualitative case study, which can be applied in future study. They may help to explain the causes behind the ethnic density effect on mental health although further research in other settings is necessary in order to test the framework's external validity.


Assuntos
Etnicidade/estatística & dados numéricos , Transtornos Mentais/etnologia , Densidade Demográfica , População Urbana/estatística & dados numéricos , Aculturação , Adulto , Estudos de Coortes , Etnicidade/psicologia , Feminino , Grupos Focais , Humanos , Entrevista Psicológica , Londres , Masculino , Preconceito , Meio Social , Percepção Social , Apoio Social , População Branca/psicologia
16.
BJPsych Int ; 12(1): 5-7, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-29093833

RESUMO

Regular appraisal and revalidation are now a routine part of professional life for doctors in the UK. For British-trained psychiatrists working abroad (in either development/humanitarian or academic fields) this is a cause of insecurity, as most of the processes of revalidation are tailored to those working in the standard structures of the National Health Service. This article explores the degree to which a peer group for psychiatrists working abroad has achieved its aim of helping its members to fulfil their revalidation requirements. It gives recommendations for how those considering work abroad can maximise their chances of remaining recognised under the revalidation system.

17.
Trials ; 16: 509, 2015 Nov 07.
Artigo em Inglês | MEDLINE | ID: mdl-26545986

RESUMO

BACKGROUND: A common complication after stroke is development of cognitive impairment and dementia. However, effective strategies for reducing the risk of developing these problems remain undefined. Potential strategies include intensive lowering of blood pressure (BP) and/or lipids. This paper summarises the baseline characteristics, statistical analysis plan and feasibility of a randomised control trial of blood pressure and lipid lowering in patients post-stroke with the primary objective of reducing cognitive impairment and dementia. METHODS: The Prevention Of Decline in Cognition After Stroke Trial (PODCAST) was a multi-centre prospective randomised open-label blinded-endpoint controlled partial-factorial internal pilot trial running in secondary and primary care. Participants without dementia were enrolled 3-7 months post ischaemic stroke or spontaneous intracerebral haemorrhage, and randomised to intensive versus guideline BP lowering (target systolic BP <125 mmHg versus <140 mmHg); patients with ischaemic stroke were also randomised to intensive or guideline lipid lowering (target LDL cholesterol <1.4 mmol/L versus <3 mmol/L). The primary outcome was the Addenbrooke's Cognitive Examination-Revised; a key secondary outcome was to assess feasibility of performing a large trial of one or both interventions. Data are number (%) or mean (standard deviation). The trial was planned to last for 8 years with follow-up between 1 and 8 years. The plan for reporting the main results is included as Additional file 2. RESULTS: 83 patients (of a planned 600) were recruited from 19 UK sites between 7 October 2010 and 31 January 2014. Delays, due to difficulties in the provision of excess treatment costs and to complexity of follow-up, led to few centres taking part and a much lower recruitment rate than planned. Patient characteristics at baseline were: age 74 (SD 7) years, male 64 (77 %), index stroke ischaemic 77 (93 %), stroke onset to randomisation 4.5 [SD 1.3] months, Addenbrooke's Cognitive Examination-Revised 86 (of 100, SD 8), Montreal Cognitive Assessment 24 (of 30, SD 3), BP 147/82 (SD 19/11) mmHg, total cholesterol 4.0 (SD 0.8) mmol/L and LDL cholesterol 2.0 (SD 0.7) mmol/L, modified Rankin Scale 1.1 (SD 0.8). CONCLUSION: Limited recruitment suggests that a large trial is not feasible using the current protocol. The effects of the interventions on BP, lipids, and cognition will be reported in the main publication. TRIAL REGISTRATION: ISRCTN85562386 registered on 23 September 2009.


Assuntos
Anti-Hipertensivos/uso terapêutico , Transtornos Cognitivos/prevenção & controle , Cognição , Demência/prevenção & controle , Hipolipemiantes/uso terapêutico , Reabilitação do Acidente Vascular Cerebral , Idoso , Idoso de 80 Anos ou mais , Anti-Hipertensivos/efeitos adversos , Biomarcadores/sangue , Pressão Sanguínea/efeitos dos fármacos , LDL-Colesterol/sangue , Protocolos Clínicos , Cognição/efeitos dos fármacos , Transtornos Cognitivos/sangue , Transtornos Cognitivos/diagnóstico , Transtornos Cognitivos/fisiopatologia , Transtornos Cognitivos/psicologia , Demência/sangue , Demência/diagnóstico , Demência/fisiopatologia , Demência/psicologia , Estudos de Viabilidade , Feminino , Humanos , Hipolipemiantes/efeitos adversos , Masculino , Testes Neuropsicológicos , Seleção de Pacientes , Projetos Piloto , Estudos Prospectivos , Tamanho da Amostra , Acidente Vascular Cerebral/sangue , Acidente Vascular Cerebral/diagnóstico , Acidente Vascular Cerebral/fisiopatologia , Acidente Vascular Cerebral/psicologia , Fatores de Tempo , Resultado do Tratamento , Reino Unido
18.
Trials ; 14: 401, 2013 Nov 22.
Artigo em Inglês | MEDLINE | ID: mdl-24266960

RESUMO

BACKGROUND: Stroke is a common cause of cognitive impairment and dementia. However, effective strategies for reducing the risk of post-stroke dementia remain undefined. Potential strategies include intensive lowering of blood pressure and/or lipids. DESIGN: multi-centre prospective randomised open-label blinded-endpoint controlled partial-factorial phase IV trial in secondary and primary care. PARTICIPANTS: 100 participants from 30 UK Stroke Research Network sites who are post- ischemic stroke or intracerebral haemorrhage by three to seven months. Interventions--all patients (1:1): intensive versus guideline blood pressure lowering (target systolic < 125 mmHg versus < 140 mmHg).Interventions--ischemic stroke (1:1): intensive versus guideline lipid lowering (target low density lipoprotein-cholesterol (LDL-c) < 1.4 mmol/l versus < 3 mmol/l). HYPOTHESES: does 'intensive' blood pressure lowering therapy and/or 'intensive' lipid control reduce cognitive decline and dementia in people with ischemic stroke; and does 'intensive' blood pressure lowering therapy reduce cognitive decline and dementia in patients with hemorrhagic stroke. PRIMARY OUTCOME: Addenbrooke's Cognitive Examination-Revised. SECONDARY OUTCOMES: feasibility of recruitment and retention of participants, tolerability and safety of the interventions, achieving and maintaining the blood pressure and lipid targets, maintaining differences in systolic blood pressure (> 10 mmHg) and low density lipoprotein-cholesterol (> 1 mmol/l) between the treatment groups, and performing clinic and telephone follow-up of cognition measures. Randomisation: using stratification, minimization and simple randomization. Blinding: participants receive open-label management. Cognition is assessed both unblinded (in clinic) and blinded (by telephone) to treatment. Adjudication of events (dementia, vascular, serious adverse events) is blinded to management. DISCUSSION: The PODCAST trial is ongoing with 78 patients recruited to date from 22 sites. Outcomes of cognitive impairment and dementia are accruing. TRIAL REGISTRATION: ISRCTN85562386.


Assuntos
Protocolos Clínicos , Transtornos Cognitivos/prevenção & controle , Lipídeos/sangue , Acidente Vascular Cerebral/complicações , Pressão Sanguínea , Feminino , Humanos , Masculino , Avaliação de Resultados em Cuidados de Saúde , Guias de Prática Clínica como Assunto , Estudos Prospectivos , Tamanho da Amostra
19.
J Affect Disord ; 141(2-3): 276-85, 2012 Dec 10.
Artigo em Inglês | MEDLINE | ID: mdl-22560597

RESUMO

BACKGROUND: In the elderly, little attention has been paid to anxiety both on a symptom dimension and as a disorder, as an independent risk factor for the incidence of activity limitations. METHODS: In a community-dwelling cohort of 1581 persons aged 65+, the association between trait anxiety symptoms (Spielberger Trait, third highest tertile) and baseline DSM-IV anxiety disorder, and 7-year incident activity limitations was determined using mixed logistic regression models. Repeated measures of activity limitations included, by increased severity level: social restriction (neighbourhood and house confined), mobility (Rosow and Breslau scale) and limitations in instrumental activities of daily living (IADL). RESULTS: Of the sample, 14.2% had an anxiety disorder at baseline. Adjusting for baseline socio-demographic and health variables, depression (past and current), antidepressant and anxiolytic drugs, baseline anxiety disorder was associated with an increased risk of incident IADL limitation (OR (95% CI): 1.84 (1.01-3.39), p=0.048) and trait anxiety with increased incidence of social restriction (OR (95% CI): 2.41 (1.42-4.09), p=0.001). Associations remained significant in participants free of depressive symptoms at baseline (OR (95% CI): 2.92 (1.41-6.05), p=0.004; OR (95% CI): 3.21 (1.31-7.89), p=0.011, respectively). LIMITATIONS: Activity limitations were self-reported and may have been over-reported in participants with anxiety. CONCLUSION: Both trait anxiety symptomatology and anxiety disorder were independently associated with increased incidence of activity limitations with a gradient of severity: trait anxiety associated with incident social restriction and anxiety disorder with more severe IADL limitations, suggesting that anxiety is a predictor of activity limitations in the elderly independently of depression comorbidity.


Assuntos
Atividades Cotidianas , Transtornos de Ansiedade/psicologia , Ansiedade/psicologia , Idoso , Idoso de 80 Anos ou mais , Análise de Variância , Antidepressivos/uso terapêutico , Ansiedade/tratamento farmacológico , Transtornos de Ansiedade/tratamento farmacológico , Distribuição de Qui-Quadrado , Comorbidade , Depressão/diagnóstico , Depressão/tratamento farmacológico , Feminino , Humanos , Vida Independente/psicologia , Masculino , Análise de Regressão
20.
Nurse Educ Today ; 30(2): 118-23, 2010 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-19632011

RESUMO

This article discusses the findings from a pilot study using short message service (SMS) texting to provide an additional means of support for health care students in practice placements. Pre-registration students were recruited students from 2nd year cohorts in Adult Nursing, Children's Nursing, Occupational Therapy, and Radiography to pilot the use of SMS texting with their private mobile phones from their work-based learning placements. The pilot was evaluated using an online questionnaire for students with follow-up telephone interviews, and face-to-face interviews with the four tutors. Data on the use of the service by students was also collated. Although the students made less use of the service than was anticipated, both staff and students were positive about the potential of this type of communication in providing an additional form of support for students in placements.


Assuntos
Pessoal Técnico de Saúde/educação , Telefone Celular , Avaliação Educacional , Emprego , Prática Profissional , Estudantes de Enfermagem , Atitude do Pessoal de Saúde , Atitude Frente aos Computadores , Comunicação , Humanos , Projetos Piloto , Pesquisa Qualitativa , Inquéritos e Questionários
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