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1.
Aust N Z J Psychiatry ; 58(9): 747-759, 2024 Sep.
Article in English | MEDLINE | ID: mdl-38847297

ABSTRACT

OBJECTIVES: To evaluate the effectiveness of integrated models of mental healthcare in enhancing clinical outcomes, quality of life, satisfaction with care and health service delivery outcomes in young people aged 12-25 years. A secondary objective was to identify common components of integrated mental health interventions. METHODS: A systematic review and meta-analysis of studies published 2001-2023 that assessed clinical or health service use outcomes of integrated care, relative to treatment as usual, for any mental health condition in 12-25 years old accessing community-based care. RESULTS: Of 11,444 titles identified, 15 studies met inclusion criteria and 6 studies were entered in the meta-analysis. Pooled effect size found integrated care was associated with a greater reduction in depressive symptoms relative to treatment as usual at 4-6 months (standardised mean difference = -0.260, 95% confidence interval = [-0.39, -0.13], p = 0.001). Of the seven studies reporting access or engagement, all reported higher rates of both in the intervention arm. The most frequent components of integration were use of a multidisciplinary team (13/15 studies), shared treatment planning (11/15) and workforce training in the model (14/15). CONCLUSIONS: Integrated models of mental healthcare are associated with a small, but significant, increase in effectiveness for depressive symptoms relative to treatment as usual. Given integrated care may increase access and engagement, future research should focus on assessing the impact of integrated care in a wider range of settings and outcomes, including clinical and functional recovery, satisfaction with care and system-level outcomes such as cost-effectiveness.


Subject(s)
Delivery of Health Care, Integrated , Humans , Adolescent , Young Adult , Child , Mental Health Services , Adult , Mental Disorders/therapy
2.
Vet Rec ; 194(2): e3614, 2024 Jan 20.
Article in English | MEDLINE | ID: mdl-38012026

ABSTRACT

BACKGROUND: Australia's 2019/2020 Black Summer bushfires affected billions of animals, many of which were rescued and cared for by veterinary and animal care workers (VACWs). Little is known about VACWs' disaster-related experiences and how these experiences may affect them. METHODS: We used a convergent mixed-methods design to explore how a variety of VACWs experienced the Black Summer bushfires. Data were gathered between April and July 2020. Participants (N = 93) were recruited via Facebook posts and emails that contained a link to an online survey. The survey included open-ended questions about VACWs' bushfire-related experiences and quantitative measures of posttraumatic stress disorder symptoms, psychological distress, burnout and grief. RESULTS: Participants reported a variety of bushfire-related experiences and described several ways the disaster affected their work, personal lives and communities. Overall, participants scored highly on measures of psychological ill-health. LIMITATIONS: Our cross-sectional design and use of non-probability sampling limited the generalisability of the results and may have introduced a response bias. CONCLUSION: Our results contribute new information on the experiences of VACWs during and after bushfires and the psychological hazards they may face due to the extreme and prolonged stressors produced by such disasters. Implications for policy and veterinary practice are discussed.


Subject(s)
Disasters , Stress Disorders, Post-Traumatic , Animals , Cross-Sectional Studies , Stress Disorders, Post-Traumatic/epidemiology , Stress Disorders, Post-Traumatic/psychology , Mental Health , Australia
3.
PEC Innov ; 3: 100230, 2023 Dec 15.
Article in English | MEDLINE | ID: mdl-37929052

ABSTRACT

Objectives: To evaluate a training program for non-specialist health care providers in a brief coaching intervention to improve positive airway pressure (PAP) usage in Veterans with sleep apnea. Methods: We conducted a national webinar training designed for non-specialist providers to implement a brief telephone coaching intervention to improve PAP adherence. The curriculum was crafted by experts in sleep medicine and behavioral sleep medicine based on principles of PAP desensitization. Providers who participated in this training were asked to complete evaluations at 30 days and 1 year. Results: Provider surveys indicated that most respondents had incorporated the intervention into their clinical practice and felt comfortable counseling patients about sleep apnea and adherence to PAP. Provider feedback suggested that future training programs should include refresher trainings, more training on PAP equipment specifics, and facilitated collaboration with local sleep medicine staff. Conclusions: This pilot training program demonstrated that a webinar format was a feasible method to increase training in PAP adherence among non-specialist health care providers. Innovation: Non-specialists can be trained as PAP coaches in webinar format, improving patients' access to effective strategies and support to be successful with PAP therapy.

4.
Death Stud ; : 1-8, 2023 Oct 06.
Article in English | MEDLINE | ID: mdl-37801468

ABSTRACT

The death of a companion animal can cause severe grief, yet previous research investigating factors predicting grief has been hampered by limitations. We explored how attachment styles, continuing bonds, and time since loss interacted to predict grief severity in a large sample of individuals grieving the loss of a variety of companion animals. Participants (n = 496) aged between18 and 79 years (Mage = 41.60, SD = 13.62) who had lost a companion animal in the previous three years completed a continuing bonds questionnaire, and animal-oriented assessments of grief and attachment styles online. After controlling for time since loss, higher attachment anxiety predicted more severe grief, a relationship partially moderated by continuing bonds, whereas attachment avoidance predicted less severe grief irrespective of continuing bonds. We recommend reconsideration of the non-human animal exclusion in prolonged grief disorder, and suggest that bereavement supports embrace targeted approaches that consider attachment styles.

5.
Psychol Serv ; 18(3): 416-425, 2021 Aug.
Article in English | MEDLINE | ID: mdl-31944814

ABSTRACT

Primary care clinics are a common treatment venue for a broad range of mental health conditions, including anxiety and depressive disorders, which are experienced by up to a fifth of primary care patients. Integrated primary care is a treatment model in which behavioral health providers are integrated into primary care clinics to treat mental health disorders and help improve the psychosocial functioning of patients. The Unified Protocol for Transdiagnostic Treatment of Emotional Disorders' (UP) focus on functional outcomes is consistent with the goals of integrated primary care. However, its 12-18 session length is not feasible for implementation in primary care. A 5-session group adaptation was developed for primary care. This pilot project examines changes in veterans' (n = 48) self-reported anxiety, depression, and psychosocial adjustment following completion of the 5-week group adaptation. Participants were enrolled in a Veterans' Health Administration (VHA) primary care clinic and were diagnosed with mild to moderate mood and stressor disorders. Treatment completers experienced improvements on all outcome measures with significant increases in the proportion of participants scoring in the subclinical range upon treatment completion (anxiety [50.0%]: t = 6.67, df = 45, p = .000; Cohen's d = .86; depression [62.5%]: t = 5.60, df = 45, p = .000; Cohen's d = .55; psychosocial functioning [35.4%]: t = 4.89, df = 36, p = .000; Cohen's d = .66). This pilot project demonstrates that a 5-session group adaptation of the UP may be a promising transdiagnostic treatment appropriate for the primary care setting. (PsycInfo Database Record (c) 2021 APA, all rights reserved).


Subject(s)
Anxiety Disorders , Anxiety , Anxiety Disorders/therapy , Humans , Mood Disorders , Pilot Projects , Primary Health Care
6.
J Clin Psychol ; 76(6): 1108-1124, 2020 06.
Article in English | MEDLINE | ID: mdl-31115049

ABSTRACT

As a pioneer of training in the field of psychology, the Veterans Affairs (VA) HealthCare System serves as a leader in the training in and provision of Telemental Health (TMH) services in the United States. To meet goals toward continued expansion of these services, the VA TMH training program includes both web-based didactic courses and a skills competency test at a basic level with supervision and consultation in TMH for more advanced training and is available to staff psychologists and psychologist trainees. Despite these efforts, barriers for training in and implementation of TMH occur at the provider, system, and patient level. At the national level, the VA is actively working to resolve these barriers and we share site-specific examples implemented by the VA Puget Sound Health Care System promoting access through TMH team to further address barriers to training and implementation.


Subject(s)
Psychology/education , Telemedicine/methods , United States Department of Veterans Affairs , Health Services Accessibility , Humans , Mental Health Services , United States , Veterans/psychology , Washington
7.
J Neurol Neurosurg Psychiatry ; 88(1): 12-18, 2017 Jan.
Article in English | MEDLINE | ID: mdl-26487646

ABSTRACT

BACKGROUND: Prevalence of atrial fibrillation (AF) is increasing, due partly to the ageing population. The Birmingham Atrial Fibrillation Treatment of the Aged (BAFTA) Trial, published in 2007, provided strong evidence of the effectiveness of warfarin at age≥80 years, but the impact on incidence of AF-related stroke and peripheral embolic vascular events is uncertain. METHODS: We studied age-specific incidence and outcome of all AF-related incident strokes and systemic emboli from 2002 to 2012 in the Oxford Vascular Study. RESULTS: Of 3096 acute cerebral or peripheral vascular events, 748 (24.2%) were AF-related. Of the 597 disabling/fatal incident ischaemic strokes, 369 occurred at age ≥80 years, of which 124 (33.6%) were in non-anticoagulated patients with known prior AF. There was no reduction in incident AF-related events after 2007 at all ages (n=231 vs 211; adjusted RR=1.11, 0.91 to 1.36, p=0.29) or at age ≥80 (137 vs 135, RR=1.15, 0.94 to 1.40, p=0.17). Scope for improved prevention at older ages was considerable. Among 208 patients with incident AF-related events at age ≥80 and known prior AF, only 19 (9.1%) were anticoagulated. Of the 189 patients not anticoagulated, 166 (87.8%) had no major disability prior to the event and 167 (88·4%) had a high embolism risk score, of whom 139 (83.2%) were also at low risk of complications. Yet, 125/167 (74.9%) were dead or institutionalised after the event. Potentially preventable embolic events outnumbered warfarin-related intracerebral haemorrhages by about 15-fold (280 vs 19), rising to 50-fold (189 vs 4) at age ≥80 years. CONCLUSIONS: We found no reduction in incidence of AF-related vascular events since publication of the BAFTA trial. A third of all disabling/fatal strokes occur in non-anticoagulated patients with known prior AF.


Subject(s)
Atrial Fibrillation/epidemiology , Embolism/epidemiology , Stroke/epidemiology , Aged , Aged, 80 and over , Anticoagulants/therapeutic use , Atrial Fibrillation/complications , Atrial Fibrillation/drug therapy , Embolism/complications , Embolism/drug therapy , England/epidemiology , Female , Humans , Incidence , Male , Stroke/complications , Stroke/drug therapy , Time Factors , Treatment Outcome , Warfarin/therapeutic use
8.
Int J Stroke ; 10(7): 1108-14, 2015 Oct.
Article in English | MEDLINE | ID: mdl-25854424

ABSTRACT

BACKGROUND: Urgent assessment is essential after stroke. Several countries have had public education campaigns, based on the FAST (Face-Arm-Speech-Time) test to reduce delays in seeking attention. However, the impact of these campaigns on patient behavior is uncertain. METHODS: We prospectively determined patient behavior after incident major stroke (NIHSS > 3) in a UK population based study (Oxford Vascular Study) before (2002-2008) and after (2009-2013) introduction of the FAST TV-campaign and assessed any sustained impact of campaign continuation. RESULTS: Among 668 consecutive patients with major stroke, medical attention was sought by a bystander in 553 (89·6%). Patients were more likely to present directly to emergency services (OR = 2·18, 95%CI:1·54-3·09, P < 0·0001) after the campaign and to arrive at hospital within 3 h (OR = 2·18, 1·55-3·06, P < 0·0001). Median [IQR] time to seeking attention fell from 53 [15-265] to 31 [7-120] minutes (P = 0·005) and median time to hospital arrival from 185 [88-885] to 119 [78-256] minutes (P < 0·0001). On time-series analysis improvements in hospital arrival within 3 h and use of emergency medical services were significantly associated to initiation of the campaign (aOR = 3·11, 1·53-6·29, P = 0·002; and 2·22, 1·05-4·67, P = 0·036, respectively), independent of trend, age, sex, ethnicity, educational level, social class, prior stroke and stroke severity, and have been sustained to 2013. CONCLUSION: Delays to seeking and receiving medical attention after major stroke in the UK. fell strikingly in 2009, coinciding with the start of the FAST TV campaign. That medical attention was sought by a bystander in nearly 90% of cases illustrates the importance of mass-media public education rather than focused programs in high-risk groups for major stroke.


Subject(s)
Health Education , Mass Media , Stroke/psychology , Aged , Aged, 80 and over , Awareness , Chi-Square Distribution , Community Health Planning , Emergency Medical Services , Female , Health Knowledge, Attitudes, Practice , Humans , Male , Middle Aged , Stroke/epidemiology , Stroke/prevention & control , Time Factors , United Kingdom/epidemiology
9.
Expert Rev Neurother ; 15(2): 187-93, 2015 Feb.
Article in English | MEDLINE | ID: mdl-25614953

ABSTRACT

Paraneoplastic neurological syndromes affecting the CNS are rare, presenting in less than 1% of all those with cancer. However, they account for significant disability and may respond to treatment. The pathogenesis of paraneoplastic neurological syndromes is presumed to relate to loss of self-tolerance spilling over from the immune attack on the underlying neoplasm. Testing for anti-neuronal antibodies is now available in most tertiary laboratories, enabling targeted therapies. While the evidence base for treatment is limited, the response to treatment can be largely determined based on the location of the target antigen; antibodies against cell surface antigens responding well to treatments targeting the humoral response. Intracellular antigen-target syndromes respond less well, but may theoretically respond best to T-cell based therapies. In both cases, aggressive tumor therapy is indicated.


Subject(s)
Antigens, Neoplasm/immunology , Autoantibodies/immunology , Central Nervous System/immunology , Immunotherapy , Neoplasms/therapy , Nerve Tissue Proteins/immunology , Animals , Humans , Immunotherapy/methods , Neoplasms/immunology
10.
Circulation ; 130(15): 1236-44, 2014 Oct 07.
Article in English | MEDLINE | ID: mdl-25208551

ABSTRACT

BACKGROUND: Prevalence of atrial fibrillation (AF) is >10% at age ≥80 years, but the impact of population aging on rates of AF-related ischemic events is uncertain. METHODS AND RESULTS: We studied age-specific incidence, outcome, and cost of all AF-related incident strokes and systemic emboli from 2002 to 2012 in the Oxford Vascular Study (OXVASC). We determined time trends in incidence of AF-related stroke in comparison with a sister study in 1981 to 1986, extrapolated numbers to the UK population and projected future numbers. Of 3096 acute cerebral or peripheral vascular events in the 92 728 study population, 383 incident ischemic strokes and 71 systemic emboli were related to AF, of which 272 (59.9%) occurred at ≥80 years. Of 597 fatal or disabling incident ischemic strokes, 262 (43.9%) were AF-related. Numbers of AF-related ischemic strokes at age ≥80 years increased nearly 3-fold from 1981-1986 to 2002-2012 (extrapolated to the United Kingdom: 6621 to 18 176 per year), due partly to increased age-specific incidence (relative rate 1.52, 95% confidence interval 1.31-1.77, P=0.001), with potentially preventable AF-related events at age ≥80 years costing the United Kingdom £374 million per year. At current incidence rates, numbers of AF-related embolic events at age ≥80 years will treble again by 2050 (72 974/year), with 83.5% of all events occurring in this age group. CONCLUSIONS: Numbers of AF-related incident ischemic strokes at age ≥80 years have trebled over the last 25 years, despite the introduction of anticoagulants, and are projected to treble again by 2050, along with the numbers of systemic emboli. Improved prevention in older people with AF should be a major public health priority.


Subject(s)
Atrial Fibrillation/complications , Cost of Illness , Embolism/economics , Embolism/epidemiology , Forecasting , Stroke/economics , Stroke/epidemiology , Age Factors , Aged , Aged, 80 and over , Anticoagulants/therapeutic use , Embolism/prevention & control , Female , Health Care Costs/trends , Humans , Incidence , Male , Middle Aged , Prevalence , Prognosis , Retrospective Studies , Sex Factors , Stroke/prevention & control , United Kingdom
11.
Stroke ; 45(10): 2967-73, 2014 Oct.
Article in English | MEDLINE | ID: mdl-25147330

ABSTRACT

BACKGROUND AND PURPOSE: Visit-to-visit variability in systolic blood pressure (SBP) is associated with an increased risk of stroke and was reduced in randomized trials by calcium channel blockers and diuretics but not by renin-angiotensin system inhibitors. However, time of day effects could not be determined. Day-to-day variability on home BP readings predicts stroke risk and potentially offers a practical method of monitoring response to variability-directed treatment. METHODS: SBP mean, maximum, and variability (coefficient of variation=SD/mean) were determined in 500 consecutive transient ischemic attack or minor stroke patients on 1-month home BP monitoring (3 BPs, 3× daily). Hypertension was treated to a standard protocol. Differences in SBP variability from 3 to 10 days before to 8 to 15 days after starting or increasing calcium channel blockers/diuretics versus renin-angiotensin system inhibitors versus both were compared by general linear models, adjusted for risk factors and baseline BP. RESULTS: Among 288 eligible interventions, variability in SBP was reduced after increased treatment with calcium channel blockers/diuretics versus both versus renin-angiotensin system inhibitors (-4.0 versus 6.9 versus 7.8%; P=0.015), primarily because of effects on maximum SBP (-4.6 versus -1.0 versus -1.0%; P=0.001), with no differences in effect on mean SBP. Class differences were greatest for early-morning SBP variability (3.6 versus 17.0 versus 38.3; P=0.002) and maximum (-4.8 versus -2.0 versus -0.7; P=0.001), with no effect on midmorning (P=0.29), evening (P=0.65), or diurnal variability (P=0.92). CONCLUSIONS: After transient ischemic attack or minor stroke, calcium channel blockers and diuretics reduced variability and maximum home SBP, primarily because of effects on morning readings. Home BP readings enable monitoring of response to SBP variability-directed treatment in patients with recent cerebrovascular events.


Subject(s)
Antihypertensive Agents/therapeutic use , Blood Pressure Monitoring, Ambulatory/methods , Blood Pressure/drug effects , Calcium Channel Blockers/therapeutic use , Ischemic Attack, Transient/prevention & control , Stroke/prevention & control , Aged , Diuretics/therapeutic use , Female , Humans , Male , Middle Aged , Time Factors
12.
Stroke ; 44(10): 2854-61, 2013 Oct.
Article in English | MEDLINE | ID: mdl-23920019

ABSTRACT

BACKGROUND AND PURPOSE: Long-term outcome information after transient ischemic attack (TIA) and stroke is required to help plan and allocate care services. We evaluated the impact of TIA and stroke on disability and institutionalization over 5 years using data from a population-based study. METHODS: Patients from a UK population-based cohort study (Oxford Vascular Study) were recruited from 2002 to 2007 and followed up to 2012. Patients were followed up at 1, 6, 12, 24, and 60 months postevent and assessed using the modified Rankin scale. A multivariate regression analysis was performed to assess the predictors of disability postevent. RESULTS: A total of 748 index stroke and 440 TIA cases were studied. For patients with TIA, disability levels increased from 14% (63 of 440) premorbidly to 23% (60 of 256) at 5 years (P=0.002), with occurrence of subsequent stroke being a major predictor of disability. For stroke survivors, the proportion disabled (modified Rankin scale >2) increased from 21% (154 of 748) premorbidly to 43% (273 of 634) at 1 month (P<0.001), with 39% (132 of 339) of survivors disabled 5 years after stroke. Five years postevent, 70% (483 of 690) of patients with stroke and 48% (179 of 375) of patients with TIA were either dead or disabled. The 5-year risk of care home institutionalization was 11% after TIA and 19% after stroke. The average 5-year cost per institutionalized patient was $99,831 (SD, 67 020) for TIA and $125,359 (SD, 91 121) for stroke. CONCLUSIONS: Our results show that 70% of patients with stroke are either dead or disabled 5 years after the event. Thus, there remains considerable scope for improvements in acute treatment and secondary prevention to reduce postevent disability and institutionalization.


Subject(s)
Brain Ischemia/mortality , Brain Ischemia/therapy , Disability Evaluation , Hospitalization , Stroke/mortality , Stroke/therapy , Aged , Aged, 80 and over , Disease-Free Survival , England/epidemiology , Female , Follow-Up Studies , Humans , Male , Middle Aged , Risk Factors , Survival Rate , Time Factors
13.
J Neurol Neurosurg Psychiatry ; 84(3): 356-61, 2013 Mar.
Article in English | MEDLINE | ID: mdl-23172867

ABSTRACT

BACKGROUND: Outpatient management safely and effectively prevents early recurrent stroke after transient ischaemic attack (TIA), but this approach may not be safe in patients with acute minor stroke. OBJECTIVE: To study outcomes of clinic and hospital-referred patients with TIA or minor stroke (National Institute of Health Stroke Scale score ≤3) in a prospective, population-based study (Oxford Vascular Study). RESULTS: Of 845 patients with TIA/stroke, 587 (69%) were referred directly to outpatient clinics and 258 (31%) directly to inpatient services. Of the 250 clinic-referred minor strokes (mean age 72.7 years), 237 (95%) were investigated, treated and discharged on the same day, of whom 16 (6.8%) were subsequently admitted to hospital within 30 days for recurrent stroke (n=6), sepsis (n=3), falls (n=3), bleeding (n=2), angina (n=1) and nursing care (n=1). The 150 patients (mean age 74.8 years) with minor stroke referred directly to hospital (median length-of-stay 9 days) had a similar 30-day readmission rate (9/150; 6.3%; p=0.83) after initial discharge and a similar 30-day risk of recurrent stroke (9/237 in clinic patients vs 8/150, OR=0.70, 0.27-1.80, p=0.61). Rates of prescription of secondary prevention medication after initial clinic/hospital discharge were higher in clinic-referred than in hospital-referred patients for antiplatelets/anticoagulants (p<0.05) and lipid-lowering agents (p<0.001) and were maintained at 1-year follow-up. The mean (SD) secondary care cost was £8323 (13 133) for hospital-referred minor stroke versus £743 (1794) for clinic-referred cases. CONCLUSION: Outpatient management of clinic-referred minor stroke is feasible and may be as safe as inpatient care. Rates of early hospital admission and recurrent stroke were low and uptake and maintenance of secondary prevention was high.


Subject(s)
Ambulatory Care Facilities/economics , Disease Management , Health Care Costs/statistics & numerical data , Secondary Prevention/economics , Stroke/economics , Stroke/prevention & control , Aged , Anticoagulants/therapeutic use , Brain Ischemia/complications , Brain Ischemia/drug therapy , Brain Ischemia/economics , Feasibility Studies , Female , Hospitalization/economics , Humans , Hypolipidemic Agents/therapeutic use , Ischemic Attack, Transient/complications , Ischemic Attack, Transient/drug therapy , Ischemic Attack, Transient/economics , Male , Prospective Studies , Secondary Prevention/methods , Stroke/complications , Stroke/drug therapy
14.
Lancet Neurol ; 12(1): 65-71, 2013 Jan.
Article in English | MEDLINE | ID: mdl-23206553

ABSTRACT

BACKGROUND: Transient isolated brainstem symptoms (eg, isolated vertigo, dysarthria, diplopia) are not consistently classified as transient ischaemic attacks (TIAs) and data for prognosis are limited. If some of these transient neurological attacks (TNAs) are due to vertebrobasilar ischaemia, then they should be common during the days and weeks preceding posterior circulation strokes. We aimed to assess the frequency of TNAs before vertebrobasilar ischaemic stroke. METHODS: We studied all potential ischaemic events during the 90 days preceding an ischaemic stroke in patients ascertained within a prospective, population-based incidence study in Oxfordshire, UK (Oxford Vascular Study; 2002-2010) and compared rates of TNA preceding vertebrobasilar stroke versus carotid stroke. We classified the brainstem symptoms isolated vertigo, vertigo with non-focal symptoms, isolated double vision, transient generalised weakness, and binocular visual disturbance as TNAs in the vertebrobasilar territory; atypical amaurosis fugax and limb-shaking as TNAs in the carotid territory; and isolated slurred speech, migraine variants, transient confusion, and hemisensory tingling symptoms as TNAs in uncertain territory. FINDINGS: Of the 1141 patients with ischaemic stroke, vascular territory was categorisable in 1034 (91%) cases, with 275 vertebrobasilar strokes and 759 carotid strokes. Isolated brainstem TNAs were more frequent before a vertebrobasilar stroke (45 of 275 events) than before a carotid stroke (10 of 759; OR 14·7, 95% CI 7·3-29·5, p<0·0001), particularly during the preceding 2 days (22 of 252 before a vertebrobasilar stroke vs two of 751 before a carotid stroke, OR 35·8, 8·4-153·5, p<0·0001). Of all 59 TNAs preceding (median 4 days, IQR 1-30) vertebrobasilar stroke, only five (8%) fulfilled the National Institute of Neurological Disorders and Stroke (NINDS) criteria for TIA. The other 54 cases were isolated vertigo (n=23), non-NINDS binocular visual disturbance (n=9), vertigo with other non-focal symptoms (n=10), isolated slurred speech, hemisensory tingling, or diplopia (n=8), and non-focal events (n=4). Only 10 (22%) of the 45 patients with isolated brainstem TNAs sought medical attention before the stroke and a vascular cause was suspected by their physician in only one of these cases. INTERPRETATION: In patients with definite vertebrobasilar stroke, preceding transient isolated brainstem symptoms are common, but most symptoms do not satisfy traditional definitions of TIA. More studies of the prognosis of transient isolated brainstem symptoms are required. FUNDING: Wellcome Trust, UK Medical Research Council, Dunhill Medical Trust, Stroke Association, National Institute for Health Research (NIHR), Thames Valley Primary Care Research Partnership, and the NIHR Biomedical Research Centre, Oxford.


Subject(s)
Brain Infarction/epidemiology , Brain Infarction/etiology , Ischemic Attack, Transient/complications , Ischemic Attack, Transient/epidemiology , Population Surveillance/methods , Aged , Aged, 80 and over , Brain Infarction/diagnosis , Female , Humans , Ischemic Attack, Transient/diagnosis , Male , Middle Aged , Prospective Studies , Vertebrobasilar Insufficiency/complications , Vertebrobasilar Insufficiency/diagnosis , Vertebrobasilar Insufficiency/epidemiology
15.
Stroke ; 43(12): 3161-7, 2012 Dec.
Article in English | MEDLINE | ID: mdl-23042660

ABSTRACT

BACKGROUND AND PURPOSE: The contribution of genetics to stroke risk, and whether this differs for different stroke subtypes, remainsuncertain. Genomewide complex trait analysis allows heritability to be assessed from genomewide association study (GWAS) data. Previous candidate gene studies have identified many associations with stoke but whether these are important requires replication in large independent data sets. GWAS data sets provide a powerful resource to perform replication studies. METHODS: We applied genomewide complex trait analysis to a GWAS data set of 3752 ischemic strokes and 5972 controls and determined heritability for all ischemic stroke and the most common subtypes: large-vessel disease, small-vessel disease, and cardioembolic stroke. By systematic review we identified previous candidate gene and GWAS associations with stroke and previous GWAS associations with related cardiovascular phenotypes (myocardial infarction, atrial fibrillation, and carotid intima-media thickness). Fifty associations were identified. RESULTS: For all ischemic stroke, heritability was 37.9%. Heritability varied markedly by stroke subtype being 40.3% for large-vessel disease and 32.6% for cardioembolic but lower for small-vessel disease (16.1%). No previously reported candidate gene was significant after rigorous correction for multiple testing. In contrast, 3 loci from related cardiovascular GWAS studies were significant: PHACTR1 in large-vessel disease (P=2.63e(-6)), PITX2 in cardioembolic stroke (P=4.78e(-8)), and ZFHX3 in cardioembolic stroke (P=5.50e(-7)). CONCLUSIONS: There is substantial heritability for ischemic stroke, but this varies for different stroke subtypes. Previous candidate gene associations contribute little to this heritability, but GWAS studies in related cardiovascular phenotypes are identifying robust associations. The heritability data, and data from GWAS, suggest detecting additional associations will depend on careful stroke subtyping.


Subject(s)
Brain Ischemia/genetics , Genome-Wide Association Study/statistics & numerical data , Homeodomain Proteins/genetics , Microfilament Proteins/genetics , Stroke/genetics , Transcription Factors/genetics , Aged , Aged, 80 and over , Atrial Fibrillation/epidemiology , Brain Ischemia/epidemiology , Carotid Intima-Media Thickness/statistics & numerical data , Databases, Factual/statistics & numerical data , Female , Genetic Predisposition to Disease/epidemiology , Genetic Predisposition to Disease/genetics , Humans , Male , Middle Aged , Myocardial Infarction/epidemiology , Phenotype , Risk Factors , Stroke/epidemiology , White People/genetics , White People/statistics & numerical data , Homeobox Protein PITX2
16.
Neurology ; 79(12): 1215-22, 2012 Sep 18.
Article in English | MEDLINE | ID: mdl-22955138

ABSTRACT

OBJECTIVE: To determine any sex differences in age-specific prevalence or severity of leukoaraiosis, a marker of white matter ischemia, in population-based and clinic cohorts of TIA/stroke and in a systematic review of the literature. METHODS: Age-specific sex differences were calculated for both CT and MRI in the Oxford Vascular Study (OXVASC) and in an MRI-based clinic cohort. We pooled odds ratios (ORs) for leukoaraiosis in women vs men from published studies by fixed-effect meta-analysis, stratified by patient characteristics (stroke vs nonstroke) and CT vs MRI. RESULTS: Among 10 stroke studies (all CT-based), leukoaraiosis was most frequent in women (OR = 1.42, 95% confidence interval [CI] 1.27-1.57, p < 0.0001), with little heterogeneity between studies (p = 0.28). However, no such excess was seen in 10 reports of nonstroke cohorts (0.91, 0.67-1.24, p = 0.56). Moreover, excess leukoaraiosis in women on CT-imaging in OXVASC (1.38, 1.15-1.67, p = 0.001) was explained by their older age (age-adjusted OR = 1.01, 0.82-1.25, p = 0.90). Leukoaraiosis was more severe in older (≥ 75) women (CT-1.50, 1.14-1.97, p = 0.004 in OXVASC; MRI-1.70, 1.17-2.48, p = 0.006 in OXVASC and clinic cohort). However, leukoaraiosis was independently associated with early mortality (hazard ratio = 1.46, 1.23-1.73, p < 0.0001), suggesting that comparisons in older age groups will be biased by prior premature death of men with leukoaraiosis. Sex differences in severity of leukoaraiosis were not addressed in previous studies. CONCLUSIONS: Previously reported excess leukoaraiosis in women with TIA/stroke is likely to be confounded by age and apparently greater severity in older women is likely to be biased by premature death in men with leukoaraiosis.


Subject(s)
Brain/pathology , Ischemic Attack, Transient/epidemiology , Leukoaraiosis/epidemiology , Nerve Fibers, Myelinated/pathology , Stroke/epidemiology , Age Factors , Aged , Aged, 80 and over , Female , Humans , Incidence , Ischemic Attack, Transient/pathology , Leukoaraiosis/pathology , Magnetic Resonance Imaging , Male , Middle Aged , Prevalence , Sex Characteristics , Stroke/pathology
17.
Neurology ; 79(13): 1356-62, 2012 Sep 25.
Article in English | MEDLINE | ID: mdl-22972645

ABSTRACT

OBJECTIVE: Many guidelines recommend emergency assessment for patients with ≥2 TIAs within 7 days, perhaps in recognition of the capsular warning syndrome. However, it is unclear whether all patients with multiple TIAs are at high early risk of stroke and whether treatable underlying pathologies are more prevalent in this group. METHODS: We studied clinical characteristics, Trial of Org 10172 in Acute Stroke Treatment (TOAST) classification, and risk of stroke in 1,000 consecutive patients with incident and recurrent TIAs in a prospective, population-based study (Oxford Vascular Study). RESULTS: Of 1,000 patients with TIAs, 170 had a further TIA within 7 days (105 within 24 hours). Multiple TIAs were not associated with carotid stenosis or atrial fibrillation, and much of the 10.6 (95% confidence interval [CI] 6.5-15.9) risk of stroke during the 7 days after the first TIA was due to patients with small-vessel disease (SVD) etiology (10 of 24 vs 8 of 146, odds ratio [OR] = 12.3, 95% CI 3.7-41.9, p < 0.0001), particularly those with motor weakness (i.e., capsular warning syndrome) compared with hemisensory events (9 of 15 [60%], 95% CI 35.3-84.7 vs 1 of 9 [11.1%], 95% CI 0-31.7, p = 0.03). The 7-day risk of stroke after a recurrent TIA was similar to the risk after a single TIA in patients with non-SVD TIA (8 of 146 [5.5%] vs 76 of 830 [9.2%], OR = 0.58, 95% CI 0.25-1.3, p = 0.20). Of the 9 patients with stroke after a capsular warning syndrome, all had the recurrent TIA within 24 hours after the first TIA, and the subsequent stroke occurred within 72 hours of the second TIA in 8. The ABCD2 scores of all preceding TIAs were ≥4 in all 9 patients with capsular warning syndrome before stroke. CONCLUSIONS: Capsular warning syndrome is rare (1.5% of TIA presentations) but has a poor prognosis (7-day stroke risk of 60%). Otherwise, recurrent TIA within 7 days is not associated with a greater stroke risk than that after a single TIA.


Subject(s)
Internal Capsule/pathology , Ischemic Attack, Transient/epidemiology , Ischemic Attack, Transient/pathology , Adult , Aged , Aged, 80 and over , Female , Humans , Ischemic Attack, Transient/diagnosis , Male , Middle Aged , Prognosis , Prospective Studies , Recurrence , Syndrome , Time Factors , Young Adult
18.
Eur J Pediatr ; 171(2): 331-6, 2012 Feb.
Article in English | MEDLINE | ID: mdl-21833494

ABSTRACT

UNLABELLED: The longer-term outcome of term-born infants without congenital anomalies requiring ventilation in the first 24 h after birth has rarely been reported. Our aims were to determine the mortality and long-term morbidity of such infants and identify risk factors for adverse outcome. The outcomes of 43 of 45 infants born at term consecutively requiring mechanical ventilation were reviewed. The infants had: meconium aspiration syndrome (n = 11), hypoxic ischaemic encephalopathy (HIE) (n = 11), respiratory depression (n = 12), sepsis (n = 5), persistent pulmonary hypertension of the newborn (n = 3) and middle cerebral artery infarction (n = 1). Eleven infants developed seizures (26%), 13 (30%) had abnormal electroencephalograms and 11 (26%) had abnormal MRI scans; 26% had an adverse outcome: six died, and five had severe neurodisability at 2 years. The infants with congenital toxoplasmosis and a middle cerebral artery infarction were excluded from the prediction analysis. In the remaining 41 patients, requirement for anticonvulsants (relative risk, RR = 4.44, 95% CI = 1.48 to 12.70; p = 0.014) and prolonged ventilation (longer than 3 days) (RR 4.83, 95% CI 1.51 to 15.64) predicted adverse outcome. Infants with HIE had an increased risk of adverse outcome (relative risk 5.45, 95% CI 1.01 to 33.85), but an adverse outcome occurred in infants with other diagnoses. CONCLUSION: Mortality and neurodisability at follow-up were common in infants born at term without major congenital anomalies who required mechanical ventilation in the first 24 h after birth, particularly in those who developed seizures requiring treatment and prolonged ventilation.


Subject(s)
Brain Damage, Chronic/etiology , Developmental Disabilities/etiology , Infant, Newborn, Diseases , Respiration, Artificial , Respiratory Insufficiency/complications , Brain Damage, Chronic/diagnosis , Child, Preschool , Developmental Disabilities/diagnosis , Female , Follow-Up Studies , Humans , Infant , Infant, Newborn , Infant, Newborn, Diseases/mortality , Infant, Newborn, Diseases/therapy , Male , Pregnancy , Prognosis , Respiratory Insufficiency/mortality , Respiratory Insufficiency/therapy , Retrospective Studies , Risk Factors , Seizures/complications , Seizures/mortality , Term Birth
19.
Nurs Stand ; 27(3): 31, 2012 Sep 19.
Article in English | MEDLINE | ID: mdl-28080783

ABSTRACT

Nurses are divided over whether the RCN should join the Trades Union Congress (features September 5).

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