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1.
Eur J Clin Pharmacol ; 77(1): 1-12, 2021 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-32770278

RESUMEN

BACKGROUND: Frailty and adverse drug effects are linked in the fact that polypharmacy is correlated with the severity of frailty; however, a causal relation has not been proven in older people with clinically manifest frailty. METHODS: A literature search was performed in Medline to detect prospective randomized controlled trials (RCTs) testing the effects of pharmacological interventions or medication optimization in older frail adults on comprehensive frailty scores or partial aspects of frailty that were published from January 1998 to October 2019. RESULTS: Twenty-five studies were identified, 4 on comprehensive frailty scores and 21 on aspects of frailty. Two trials on comprehensive frailty scores showed positive results on frailty although the contribution of medication review in a multidimensional approach was unclear. In the studies on aspects related to frailty, ten individual drug interventions showed improvement in physical performance, muscle strength or body composition utilizing alfacalcidol, teriparatide, piroxicam, testosterone, recombinant human chorionic gonadotropin, or capromorelin. There were no studies examining negative effects of drugs on frailty. CONCLUSION: So far, data on a causal relationship between drugs and frailty are inconclusive or related to single-drug interventions on partial aspects of frailty. There is a clear need for RCTs on this topic that should be based on a comprehensive, internationally consistent and thus reproducible concept of frailty assessment.


Asunto(s)
Fragilidad/tratamiento farmacológico , Anciano , Anciano Frágil , Humanos , Polifarmacia , Ensayos Clínicos Controlados Aleatorios como Asunto
2.
Age Ageing ; 50(4): 1189-1199, 2021 06 28.
Artículo en Inglés | MEDLINE | ID: mdl-33349863

RESUMEN

BACKGROUND: Healthcare professionals are often reluctant to deprescribe fall-risk-increasing drugs (FRIDs). Lack of knowledge and skills form a significant barrier and furthermore, there is no consensus on which medications are considered as FRIDs despite several systematic reviews. To support clinicians in the management of FRIDs and to facilitate the deprescribing process, STOPPFall (Screening Tool of Older Persons Prescriptions in older adults with high fall risk) and a deprescribing tool were developed by a European expert group. METHODS: STOPPFall was created by two facilitators based on evidence from recent meta-analyses and national fall prevention guidelines in Europe. Twenty-four panellists chose their level of agreement on a Likert scale with the items in the STOPPFall in three Delphi panel rounds. A threshold of 70% was selected for consensus a priori. The panellists were asked whether some agents are more fall-risk-increasing than others within the same pharmacological class. In an additional questionnaire, panellists were asked in which cases deprescribing of FRIDs should be considered and how it should be performed. RESULTS: The panellists agreed on 14 medication classes to be included in the STOPPFall. They were mostly psychotropic medications. The panellists indicated 18 differences between pharmacological subclasses with regard to fall-risk-increasing properties. Practical deprescribing guidance was developed for STOPPFall medication classes. CONCLUSION: STOPPFall was created using an expert Delphi consensus process and combined with a practical deprescribing tool designed to optimise medication review. The effectiveness of these tools in falls prevention should be further evaluated in intervention studies.


Asunto(s)
Accidentes por Caídas , Preparaciones Farmacéuticas , Accidentes por Caídas/prevención & control , Anciano , Anciano de 80 o más Años , Técnica Delphi , Europa (Continente) , Humanos , Prescripciones
3.
Age Ageing ; 47(2): 164-167, 2018 03 01.
Artículo en Inglés | MEDLINE | ID: mdl-29315380

RESUMEN

Alcohol consumption constitutes a substantial burden of disease. Older people are being admitted to hospital for alcohol problems in increasing numbers. A recent systematic review reports cautious supportive evidence for primary prevention interventions in reducing excessive alcohol consumption in older drinkers, but does not focus on treatment of dependent drinkers. The evidence base for treatment interventions for dependent drinkers is comparatively limited, but it is growing. In addition to brief interventions, specialist outpatient treatment and inpatient treatment have been evaluated.The responses of older people to treatment are promising: they want to abstain, they have the capacity to change, they respond well to brief advice and motivational enhancement therapy, they achieve improvements at least as comparable to younger counterparts-and sometimes better-and they do have the prospect of long-term recovery.There is a need to develop services tailored to the needs of older substance misusers. Education of the workforce, including medical students and other health care professionals, is the key. Collaboration and coordination of services, training, research and policy are essential.There are very few designated services for older substance misusers in the UK and only 7% of older people who need treatment for alcohol problems access them. There is a massive gap in the whole gamut of research from basic to clinical research in this vulnerable patient population: this has to be developed if management is to be effective and up to date.


Asunto(s)
Consumo de Bebidas Alcohólicas , Trastornos Mentales , Anciano , Anciano de 80 o más Años , Personal de Salud , Hospitalización , Humanos
5.
BMC Palliat Care ; 15: 69, 2016 Aug 02.
Artículo en Inglés | MEDLINE | ID: mdl-27484414

RESUMEN

BACKGROUND: There is a gap between readily available evidence of best practice and its use in everyday palliative care. The IMPACT study evaluated the potential of facilitated use of Quality Indicators as tools to improve palliative care in different settings in England. METHODS: 1) Modelling palliative care services and selecting a set of Quality Indicators to form the core of an intervention, 2) Case studies of intervention using the Quality Indicator set supported by an expert in service change in selected settings (general practice, community palliative care teams, care homes, hospital wards, in-patient hospices) with a before-and-after evaluation, and 3) realist evaluation of processes and outcomes across settings. Participants in each setting were supported to identify no more than three Quality Indicators to work on over an eight-month period in 2013/2014. RESULTS: General practices could not be recruited to the study. Care homes were recruited but not retained. Hospital wards were recruited and retained, and using the Quality Indicator (QI) set achieved some of their desired changes. Hospices and community palliative care teams were able to use the QI set to achieve almost all their desired changes, and develop plans for quality improvements. Improvements included: increasing the utility of electronic medical records, writing a manual for end of life care, establishing working relationships with a hospice; standardising information transfer between settings, holding regular multi-disciplinary team meetings, exploration of family carers' views and experiences; developing referral criteria, and improvement of information transfer at patient discharge to home or to hospital. Realist evaluation suggested that: 1) uptake and use of QIs are determined by organisational orientation towards continuous improvement; 2) the perceived value of a QI package was not powerful enough for GPs and care homes to commit to or sustain involvement; 3) the QI set may have been to narrow in focus, or more specialist than generalist; and 4) the greater the settings' 'top-down' engagement with this change project, the more problematic was its implementation. CONCLUSIONS: Whilst use of QIs may facilitate improvements in specialist palliative care services, different QI sets may be needed for generalist care settings.


Asunto(s)
Servicios de Salud para Ancianos/normas , Cuidados Paliativos/normas , Planificación de Atención al Paciente , Comodidad del Paciente/normas , Calidad de la Atención de Salud/normas , Cuidado Terminal/normas , Registros Electrónicos de Salud , Inglaterra , Práctica Clínica Basada en la Evidencia , Femenino , Hospitales para Enfermos Terminales , Hospitalización , Humanos , Masculino , Indicadores de Calidad de la Atención de Salud
6.
Arch Phys Med Rehabil ; 94(4): 693-702, 2013 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-23201425

RESUMEN

OBJECTIVE: To explore the effects of Mobilization and Tactile Stimulation (MTS) and patterns of recovery in chronic stroke (>12mo) when upper limb (UL) "performance" has reached a clear plateau. DESIGN: Replicated single-system experimental study with 8 single cases using A-B-A design (baseline-intervention-withdrawal phases); length of baseline randomly determined; intervention phase involved 6 weeks of daily MTS to the contralesional UL. SETTING: Community setting, within participants' place of residence. PARTICIPANTS: Individual stroke survivors (N=8; male-to-female ratio, 3:1; age range, 49-76y; 4 with left hemiplegia, 4 with right hemiplegia) discharged from ongoing therapy, more than 1 year post stroke (range, 14-48mo). Clinical presentations were varied across the sample. INTERVENTIONS: Participants received up to 1 hour of daily (Monday to Friday) treatment with MTS to the UL for 6 weeks during the intervention (B) phase. MAIN OUTCOME MEASURES: Motor function (Action Research Arm Test [ARAT]) and motor impairment (Motricity Index [MI] arm section) of the UL. RESULTS: UL performance was stable during baseline for all participants. On visual analysis, improvements in motor impairment were seen in all participants, and clinically significant improvements in motor function were seen in 4 of 8 participants during the intervention phase. Latency between onset of intervention and improvement ranged from 5 to 31 days (ARAT) and from 0 to 28 days (MI). Improvements in performance were maintained on withdrawal of the intervention. Randomization tests were not significant. CONCLUSIONS: MTS appears to improve UL motor impairment and functional activity many months, even years, after stroke onset. Improvement can be immediate, but more often there is latency between the start of intervention and improvement; recovery can be distal to proximal.


Asunto(s)
Hemiplejía/rehabilitación , Manipulaciones Musculoesqueléticas , Accidente Cerebrovascular/fisiopatología , Extremidad Superior/fisiopatología , Anciano , Estudios de Cohortes , Femenino , Fuerza de la Mano/fisiología , Hemiplejía/etiología , Hemiplejía/fisiopatología , Humanos , Masculino , Persona de Mediana Edad , Destreza Motora/fisiología , Estimulación Física , Recuperación de la Función/fisiología , Accidente Cerebrovascular/complicaciones , Rehabilitación de Accidente Cerebrovascular , Tacto/fisiología , Resultado del Tratamiento
7.
Drugs Aging ; 39(11): 863-874, 2022 11.
Artículo en Inglés | MEDLINE | ID: mdl-36284081

RESUMEN

BACKGROUND: Cognitive decline is common in older people. Numerous studies point to the detrimental impact of polypharmacy and inappropriate medication on older people's cognitive function. Here we aim to systematically review evidence on the impact of medication optimisation and drug interventions on cognitive function in older adults. METHODS: A systematic review was performed using MEDLINE and Web of Science on May 2021. Only randomised controlled trials (RCTs) addressing the impact of medication optimisation or pharmacological interventions on quantitative measures of cognitive function in older adults (aged > 65 years) were included. Single-drug interventions (e.g., on drugs for dementia) were excluded. The quality of the studies was assessed by using the Jadad score. RESULTS: Thirteen studies met the inclusion criteria. In five studies a positive impact of the intervention on metric measures of cognitive function was observed. Only one study showed a significant improvement of cognitive function by medication optimisation. The remaining four positive studies tested methylphenidate, selective oestrogen receptor modulators, folic acid and antipsychotics. The mean Jadad score was low (2.7). CONCLUSION: This systematic review identified a small number of heterogenous RCTs investigating the impact of medication optimisation or pharmacological interventions on cognitive function. Five trials showed a positive impact on at least one aspect of cognitive function, with comprehensive medication optimisation not being more successful than focused drug interventions. More prospective trials are needed to specifically assess ways of limiting the negative impact of certain medication in particular and polypharmacy in general on cognitive function in older patients.


Asunto(s)
Antipsicóticos , Disfunción Cognitiva , Anciano , Humanos , Cognición , Polifarmacia , Ensayos Clínicos Controlados Aleatorios como Asunto
8.
Cochrane Database Syst Rev ; (6): CD006609, 2011 Jun 15.
Artículo en Inglés | MEDLINE | ID: mdl-21678359

RESUMEN

BACKGROUND: Recent studies have attempted to disaggregate therapeutic intervention packages by looking at the impact of structure and process characteristics of environment upon outcome. However, what is commonly referred to as the 'black box' of therapy has yet to be comprehensively unpacked. This failure to analyse the components of therapy means that it remains unclear how much therapy should be provided, who should provide it, and which patients should be targeted to ensure that functional outcomes are maximized. This review, therefore, seeks to assess the effectiveness of specific therapeutic interventions in the rehabilitation of the paretic upper limb post stroke. OBJECTIVES: To identify if specific hands-on therapeutic interventions enhance motor activity and function of the upper limb post stroke. SEARCH STRATEGY: We searched the trials registers of the Cochrane Stroke Group (March 2010), the Cochrane Complementary Medicine Field (March 2010) and the Cochrane Rehabilitation and Related Therapies Field (March 2010); MEDLINE (1966 to March 2010); AMED (1985 to March 2010); EMBASE (1980 to March 2010); CINAHL (1982 to March 2010); the Physiotherapy Evidence Database (PEDro) (March 2010); and the Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library 2010, Issue 1). In an effort to identify other published, unpublished and ongoing trials we planned to handsearch journals, searched ongoing trials registers, reviewed reference lists, and contacted relevant professional organizations. SELECTION CRITERIA: Randomized controlled trials (RCTs) involving adults aged 18 years or over and including descriptions of specific hands-on interventions and techniques, rather than packages or approaches to treatment. DATA COLLECTION AND ANALYSIS: Following completion of the searches, two review authors independently assessed the trials and extracted data using a data extraction pro forma. The same two review authors independently recorded and documented the methodological quality of the trials. MAIN RESULTS: Three studies, involving a total of 86 participants, met all the selection criteria and were included in the review. However, extreme levels of heterogeneity were evident. Therefore, we could not undertake a meta-analysis of the results and completed a narrative synthesis instead. AUTHORS' CONCLUSIONS: Overall, the review demonstrated that the limited evidence of benefit of stretching, passive exercises and mobilization, when applied to the hemiplegic upper limb following stroke, merits further research.


Asunto(s)
Paresia/rehabilitación , Modalidades de Fisioterapia , Rehabilitación de Accidente Cerebrovascular , Extremidad Superior , Adulto , Terapia por Estimulación Eléctrica/métodos , Humanos , Actividad Motora/fisiología , Ejercicios de Estiramiento Muscular/métodos , Paresia/etiología , Ensayos Clínicos Controlados Aleatorios como Asunto , Accidente Cerebrovascular/complicaciones
9.
BMJ Open ; 11(10): e047255, 2021 10 19.
Artículo en Inglés | MEDLINE | ID: mdl-34666999

RESUMEN

OBJECTIVES: To identify aspects of the organisation and delivery of acute inpatient services for people with dementia that are associated with shorter length of hospital stay. DESIGN AND SETTING: Retrospective cohort study of patients admitted to 200 general hospitals in England and Wales. PARTICIPANTS: 10 106 people with dementia who took part in the third round of National Audit of Dementia. MAIN OUTCOME MEASURE: Length of admission to hospital. RESULTS: The median length of stay was 12 days (IQR=6-23 days). People with dementia spent less time in hospital when discharge planning was initiated within 24 hours of admission (estimated effect -0.24, 95% CI: -0.29 to -0.18, p<0.001). People from ethnic minorities had shorter length of stay (difference -0.066, 95% CI: -0.13 to -0.002, p=0.043). Patients with documented evidence of discussions having taken place between their carers and medical staff spent longer in hospital (difference 0.26, 95% CI: 0.21 to 0.32, p<0.001). These associations held true in a subsample of 669 patients admitted with hip fracture and data from 74 hospitals with above average carer-rated quality of care. CONCLUSIONS: The way that services for inpatients with dementia are delivered can influence how long they spend in hospital. Initiating discharge planning within the first 24 hours of admission may help reduce the amount of time that people with dementia spend in hospital.


Asunto(s)
Demencia , Demencia/terapia , Inglaterra , Hospitales Generales , Humanos , Tiempo de Internación , Estudios Retrospectivos , Gales
11.
J Clin Nurs ; 18(16): 2261-72, 2009 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-19583659

RESUMEN

AIM AND OBJECTIVE: This study has investigated older people's experiences of a recent fall, its impact on their health, lifestyle, quality of life, care networks, prevention and their views on service use. BACKGROUND: Falls are common in older people and prevalence increases with age. Falls prevention is a major policy and service initiative. DESIGN: An exploratory, qualitative design involving two time points. METHOD: A convenience sample of 27 older people from two primary care trusts who had a recent fall. Taped semi structured qualitative interviews were conducted and repeated at follow up to detect change over time and repeat falls. Data were collected on their experience of falls, health, activities of living, lifestyle, quality of life, use of services, prevention of falls, informal care and social networks. Content analysis of transcribed interviews identified key themes. RESULTS: The majority of people fell indoors (n = 23), were repeat fallers (n = 22) with more than half alone when they fell (n = 15). For five people it was their first ever fall. Participants in primary care trust 1 had a higher mean age than those in primary care trust 2 and had more injurious falls (n = 12, mean age 87 years vs. n = 15, mean age 81 years). The majority of non-injurious falls went unreported to formal services. Falls can result in a decline in health status, ability to undertake activities of living, lifestyle and quality of life. CONCLUSIONS: Local informal care and support networks are as important as formal care for older people at risk of falls or who have fallen. Access to falls prevention programmes and services is limited for people living in more rural communities. RELEVANCE TO PRACTICE: Falls prevention initiatives and services should work with local communities, agencies and informal carers to ensure equitable access and provision of information, resources and care to meet the needs of older people at risk or who have fallen.


Asunto(s)
Accidentes por Caídas , Actitud Frente a la Salud , Estado de Salud , Estilo de Vida , Calidad de Vida/psicología , Accidentes por Caídas/prevención & control , Accidentes por Caídas/estadística & datos numéricos , Actividades Cotidianas/psicología , Anciano de 80 o más Años , Comorbilidad , Costo de Enfermedad , Femenino , Estudios de Seguimiento , Encuestas de Atención de la Salud , Encuestas Epidemiológicas , Humanos , Masculino , Investigación Metodológica en Enfermería , Investigación Cualitativa , Factores de Riesgo , Apoyo Social , Encuestas y Cuestionarios , Reino Unido/epidemiología
12.
Prim Health Care Res Dev ; 20: e117, 2019 06 20.
Artículo en Inglés | MEDLINE | ID: mdl-32799962

RESUMEN

BACKGROUND: Substance misuse in older people represents a growing clinical and public health problem within primary care. AIM: The aim of article is to explore policy and research evidence for informing best practice in the assessment, treatment effectiveness, treatment implementation and approaches to recovery for older people with substance misuse in primary care. METHODS: Relevant search terms were used to examine the databases MEDLINE, EMBASE, CINAHL and PsychINFO up to January 2016. RESULTS: An age-sensitive approach is required to overcome barriers to assessment. Training is essential for developing relevant knowledge, skills and attitudes. Clinical audit be used to develop care pathways, particularly for older people with dual diagnosis. There is also a need to develop closer links between primary care and the secondary care specialties, as well as added value in working with carers and voluntary agencies. DISCUSSION: Further research is needed to inform more effective approaches to treatment. Adequate funding for workforce development and quality improvement in service development are also essential to improve health outcomes and quality of life in older people with substance misuse.


Asunto(s)
Práctica Clínica Basada en la Evidencia/normas , Geriatría/normas , Guías de Práctica Clínica como Asunto , Atención Primaria de Salud/normas , Trastornos Relacionados con Sustancias/psicología , Trastornos Relacionados con Sustancias/terapia , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino
13.
Arch Phys Med Rehabil ; 89(10): 2003-10, 2008 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-18929030

RESUMEN

OBJECTIVE: To explore the effects on motor function and impairment of mobilization and tactile stimulation for the paretic arm and hand after stroke. DESIGN: Replicated single-system series, ABA design. SETTING: The stroke rehabilitation ward of a community hospital in the United Kingdom. PARTICIPANTS: Consecutive sample, men and women (N=6) with stroke (left or right), within 3 months of onset. INTERVENTION: Sixty minutes of daily mobilization and tactile stimulation to the paretic arm and hand for 6 weeks in addition to the usual rehabilitation program. MAIN OUTCOME MEASURES: Focal disability (Action Research Arm Test [ARAT]) and motor impairment (Motricity Index arm section). RESULTS: All participants showed visual change in 1 or more of trend, level, or slope between baseline and intervention phases for both the ARAT and the Motricity Index. The visual analysis was confirmed through statistical testing (c statistic and/or Mann-Whitney U test) for 5 of 6 participants (statistical analysis was precluded for 1 participant). No further improvements were made on intervention withdrawal. CONCLUSIONS: This study shows proof of concept for using mobilization and tactile stimulation to improve motor recovery after severe paresis, justifying conducting dose-finding studies as a precursor to multicenter phase III clinical trials.


Asunto(s)
Hemiplejía/rehabilitación , Modalidades de Fisioterapia , Tacto/fisiología , Extremidad Superior/fisiopatología , Anciano , Anciano de 80 o más Años , Femenino , Hemiplejía/fisiopatología , Humanos , Masculino , Persona de Mediana Edad , Recuperación de la Función , Estadísticas no Paramétricas , Resultado del Tratamiento
14.
J Adv Nurs ; 63(6): 586-96, 2008 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-18808580

RESUMEN

AIM: This paper is a report of a study to explore the experiences of older people who suffered a recent fall and identify possible factors that could contribute to service development. BACKGROUND: Falls in older people are prevalent and are associated with morbidity, hospitalization and mortality, personal costs to individuals and financial costs to health services. METHOD: A convenience sample of 27 older people (mean age 84 years; range 65-98) participated in semi-structured taped interviews. Follow-up interviews during 2003-2004 were undertaken to detect changes over time. Data were collected about experience of the fall, use of services, health and well-being, activities of daily living, informal care, support networks and prevention. Thematic content analysis was undertaken. FINDINGS: Twenty-seven initial interviews and 18 follow-up interviews were conducted. The majority of people fell indoors (n = 23) and were alone (n = 15). The majority of falls were repeat falls (n = 22) and five were a first-ever fall. People who reflected on their fall and sought to understand why and how it occurred developed strategies to prevent future falls, face their fear, maintain control and choice and continue with activities of daily living. Those who did not reflect on their fall and did not know why it occurred restricted their activities and environments and remained in fear of falling. CONCLUSION: Assisting people to reflect on their falls and to understand why they happened could help with preventing future falls, allay fear, boost confidence and aid rehabilitation relating to their activities of daily living.


Asunto(s)
Prevención de Accidentes , Accidentes por Caídas/prevención & control , Actividades Cotidianas/psicología , Servicios de Salud/estadística & datos numéricos , Anciano , Anciano de 80 o más Años , Miedo/psicología , Femenino , Estudios de Seguimiento , Estado de Salud , Humanos , Masculino , Autonomía Personal , Desarrollo de Programa , Reino Unido
15.
Cerebrovasc Dis ; 24(6): 509-15, 2007.
Artículo en Inglés | MEDLINE | ID: mdl-17971629

RESUMEN

BACKGROUND: The National Institute of Health Stroke Scale (NIHSS) and the Scandinavian Stroke Scale (SSS) are commonly used in clinical stroke trials. Use of different scales in trials makes comparison of outcomes difficult. METHODS: Adult patients with an acute stroke were recruited within 24 h of onset, and NIHSS, SSS and Glasgow Coma Scale scores were assessed at baseline and repeated at 1 week. RESULTS AND CONCLUSIONS: A total of 144 patients were included (46% males, mean age = 73 years). At presentation the median SSS score was 38 (2-58), and a week later 40 (4-58), the median NIHSS score at presentation was 5 (0-29) and a week later 3 (0-27). Changes in both scales were strongly correlated, r = 0.76, p < 0.001. Both were good predictors of mortality. Linear regression analysis produced an equation relating the two: SSS = 50 - 2 x NIHSS.


Asunto(s)
National Institutes of Health (U.S.) , Índice de Severidad de la Enfermedad , Accidente Cerebrovascular/fisiopatología , Anciano , Anciano de 80 o más Años , Femenino , Escala de Coma de Glasgow , Humanos , Modelos Lineales , Masculino , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Países Escandinavos y Nórdicos , Accidente Cerebrovascular/mortalidad , Estados Unidos
16.
Postgrad Med J ; 83(975): 16-20, 2007 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-17267673

RESUMEN

The term "frailty" is used loosely to describe a range of conditions in older people, including general debility and cognitive impairment. There is no clear consensus on the definition of frailty; however, it is proposed that frailty comprises a collection of biomedical factors which influences an individual's physiological state in a way that reduces his or her capacity to withstand environmental stresses. Only a subset of older people are at risk of becoming frail; these are vulnerable, prone to dependency and have reduced life expectancy. These health outcomes contribute to an increased demand for medical and social care, and are associated with increased economic costs. As demographic trends indicate a rise in the older population, this healthcare burden will increase. This review aims to encapsulate the current debate surrounding the concept of frailty, with emphasis on proposed definitions of frailty which may be relevant to its identification in the clinical setting.


Asunto(s)
Anciano Frágil , Anciano , Biomarcadores/metabolismo , Humanos , Prevalencia , Medicina Preventiva , Factores de Riesgo
17.
J Stroke Cerebrovasc Dis ; 16(6): 239-44, 2007.
Artículo en Inglés | MEDLINE | ID: mdl-18035240

RESUMEN

BACKGROUND: Hypoxia is common after acute stroke. Most studies of oxygenation after stroke were done at night. The objective of this study was to determine whether there are differences in oxygenation between day and night early after stroke. METHODS: Patients with an acute stroke were recruited within 24 hours of admission. Patients who were hypoxic (oxygen saturation < 90%) were excluded. Oxygen saturation was assessed by pulse oximetry over 24 hours. Daytime recordings were taken from 9 am to 9 pm and nighttime recordings from 10 pm to 6 am. Respiratory rate and sleep/awake status were recorded twice during the day and the night. RESULTS: Forty patients were recruited (mean age 77 years [range 55-93 years], 53% men; median [range] Glasgow Coma Scale score 15 [10-15] and Scandinavian Stroke Scale score 31 [4-56]; 80% cerebral infarcts, 20% hemorrhages). The median (range) respiratory rate was 20 (14-30) breaths/min in the day and 18 (12-32) breaths/min in the night (P < .01, Wilcoxon paired test). The median (range) oxygen saturation was 95.5% (87%-98.6%) in the day and 94.3% (80%-98%) at night (P < .001, Wilcoxon paired test). The median (range) 4% oxygen desaturation index was 1.7 (0.0, 18.0) in the day and 3.0 (0.0, 39.4) at night (P < .001, Wilcoxon paired test). Respiratory rate, oxygen saturation, and 4% oxygen desaturation index during the day and night were strongly correlated. CONCLUSIONS: All indicators of oxygenation assessed in this study were significantly worse at night than in the day. Because daytime and nighttime results were strongly correlated, borderline hypoxia during the day is strongly predictive of overt hypoxia at night.


Asunto(s)
Ritmo Circadiano , Hipoxia/etiología , Oxígeno/sangre , Mecánica Respiratoria , Accidente Cerebrovascular/sangre , Anciano , Anciano de 80 o más Años , Escala de Coma de Glasgow , Humanos , Hipoxia/sangre , Hipoxia/fisiopatología , Masculino , Persona de Mediana Edad , Oximetría , Índice de Severidad de la Enfermedad , Sueño , Accidente Cerebrovascular/complicaciones , Accidente Cerebrovascular/fisiopatología , Vigilia
18.
Stroke ; 37(3): 865-71, 2006 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-16456122

RESUMEN

BACKGROUND AND PURPOSE: To involve stroke patients and carers in the design of a study of oxygen supplementation in acute stroke and to obtain their views on the importance of the study, consent issues, relevance, and acceptability of the outcome measures, and the preferred method of follow-up. METHODS: This study involved qualitative and quantitative research. Three focus group meetings were held with individuals who have had personal experience of stoke, mostly stoke patients and their partners or carers (an association of young stroke sufferers and 2 dysphasia support groups each from a different town in the West Midlands, UK). The researchers explained the planned oxygen supplementation study and encouraged participants to comment and make suggestions in a semistructured interview. The audience was then asked to complete a questionnaire relating to the study. RESULTS: Seventy-three people (67% stroke patients and 33% carers; mean age 64; range 31 to 86 years; and 47% males) attended the 3 meetings. The overall response rate to the questionnaires was 70%. Most of the respondents considered the study worthwhile (97%) and the planned outcome measures relevant. In addition, assessment of speech, memory, sleep, and cognitive function was raised by >20% of respondents as important outcomes. Seventy-five percent would agree with assent from a family member on behalf of incompetent patients, and 92% would agree to a doctor recruiting incompetent patients to the study and seeking consent/assent later. The majority of respondents (80%) preferred personal contact with the researcher or a representative to a questionnaire for follow-up. CONCLUSIONS: Involvement of stroke patients and carers helped us identify outcome measures that are important to the stroke population but not routinely addressed in stroke assessment scales. A high proportion of respondents asked for waiver of consent and agreed to family's assent on behalf of incompetent patients. Although consumer involvement has helped us to make the study more relevant to the public, it has also led to difficult scientific and ethical conflicts in protocol design.


Asunto(s)
Oxígeno/uso terapéutico , Ensayos Clínicos Controlados Aleatorios como Asunto/métodos , Proyectos de Investigación , Adulto , Anciano , Anciano de 80 o más Años , Investigación Biomédica/tendencias , Cuidadores , Ensayos Clínicos como Asunto , Participación de la Comunidad , Femenino , Grupos Focales , Humanos , Masculino , Persona de Mediana Edad , Evaluación de Resultado en la Atención de Salud , Accidente Cerebrovascular/terapia , Encuestas y Cuestionarios , Resultado del Tratamiento
19.
J Alzheimers Dis ; 10(1): 17-24; discussion 29-31, 2006 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-16988476

RESUMEN

There are unexplained links between human exposure to aluminium and the incidence, progression and aetiology of Alzheimer's disease. The null hypothesis which underlies any link is that there would be no Alzheimer's disease in the effective absence of a body burden of aluminium. To test this the latter would have to be reduced to and retained at a level that was commensurate with an Alzheimer's disease-free population. In the absence of recent human interference in the biogeochemical cycle of aluminium the reaction of silicic acid with aluminium has acted as a geochemical control of the biological availability of aluminium. This same mechanism might now be applied to both the removal of aluminium from the body and the reduced entry of aluminium into the body while ensuring that essential metals, such as iron, are unaffected. Based upon the premise that urinary aluminium is the best non-invasive estimate of body burden of aluminium patients with Alzheimer's disease were asked to drink 1.5 L of a silicic acid-rich mineral water each day for five days and, by comparison of their urinary excretion of aluminium pre-and post this simple procedure, the influence upon their body burden of aluminium was determined. Drinking the mineral water increased significantly (P<0.001) their urinary excretion of silicic acid (34.3 +/- 15.2 to 55.7 +/- 14.2 micromol/mmol creatinine) and concomitantly reduced significantly P=0.037) their urinary excretion of aluminium (86.0 +/- 24.3 to 62.2 +/- 23.2 nmol/mmol creatinine). The latter was achieved without any significant (P>0.05) influence upon the urinary excretion of iron (20.7 +/- 9.5 to 21.7 +/- 13.8 nmol/mmol creatinine). The reduction in urinary aluminium supported the future longer-term use of silicic acid as non-invasive therapy for reducing the body burden of aluminium in Alzheimer's disease.


Asunto(s)
Aluminio/metabolismo , Enfermedad de Alzheimer/terapia , Enfermedad de Alzheimer/orina , Quelantes/uso terapéutico , Ácido Silícico/farmacología , Ácido Silícico/uso terapéutico , Anciano , Aluminio/orina , Enfermedad de Alzheimer/epidemiología , Quelantes/farmacología , Creatinina/orina , Femenino , Humanos , Incidencia , Hierro/orina , Masculino , Persona de Mediana Edad , Aguas Minerales , Índice de Severidad de la Enfermedad , Ácido Silícico/orina , Espectrometría por Rayos X/métodos
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