Effectiveness of a clinical pathway for acute stroke care in a district general hospital: an audit

BACKGROUND: Organised stroke care saves lives and reduces disability. A clinical pathway might be a form of organised stroke care, but the evidence for the effectiveness of this model of care is limited. METHODS: This study was a retrospective audit study of consecutive stroke admissions in the setting of an acute general medical unit in a district general hospital. The case-notes of patients admitted with stroke for a 6-month period before and after introduction of the pathway, were reviewed to determine data on length of stay, outcome, functional status, (Barthel Index, BI and Modified Rankin Scale, MRS), Oxfordshire Community Stroke Project (OCSP) sub-type, use of investigations, specific management issues and secondary prevention strategies. Logistic regression was used to adjust for differences in case-mix. RESULTS: N = 77 (prior to the pathway) and 76 (following the pathway). The median (interquartile range, IQR) age was 78 years (67.75–84.25), 88% were European NZ and 37% were male. The median (IQR) BI at admission for the pre-pathway group was less than the post-pathway group: 6 (0–13.5) vs. 10 (4–15.5), p = 0.018 but other baseline variables were statistically similar. There were no significant differences between any of the outcome or process of care variables, except that echocardiograms were done less frequently after the pathway was introduced. A good outcome (MRS<4) was obtained in 66.2% prior to the pathway and 67.1% after the pathway. In-hospital mortality was 20.8% and 23.1%. However, using logistic regression to adjust for the differences in admission BI, it appeared that admission after the pathway was introduced had a significant negative effect on the probability of good outcome (OR 0.29, 95%CI 0.09-0.99). CONCLUSION: A clinical pathway for acute stroke management appeared to have no benefit for the outcome or processes of care and may even have been associated with worse outcomes. These data support the conclusions of a recent Cochrane review

The neurogenic effects of exogenous neuropeptide Y: early molecular events and long-lasting effects in the hippocampus of trimethyltin-treated rats.

Modulation of endogenous neurogenesis is regarded as a promising challenge in neuroprotection. In the rat model of hippocampal neurodegeneration obtained by Trimethyltin (TMT) administration (8 mg/kg), characterised by selective pyramidal cell loss, enhanced neurogenesis, seizures and cognitive impairment, we previously demonstrated a proliferative role of exogenous neuropeptide Y (NPY), on dentate progenitors in the early phases of neurodegeneration. To investigate the functional integration of newly-born neurons, here we studied in adult rats the long-term effects of intracerebroventricular administration of NPY (2 \ub5g/2 \ub5l, 4 days after TMT-treatment), which plays an adjuvant role in neurodegeneration and epilepsy. Our results indicate that 30 days after NPY administration the number of new neurons was still higher in TMT+NPY-treated rats than in control+saline group. As a functional correlate of the integration of new neurons into the hippocampal network, long-term potentiation recorded in Dentate Gyrus (DG) in the absence of GABAA receptor blockade was higher in the TMT+NPY-treated group than in all other groups. Furthermore, qPCR analysis of Kruppel-like factor 9, a transcription factor essential for late-phase maturation of neurons in the DG, and of the cyclin-dependent kinase 5, critically involved in the maturation and dendrite extension of newly-born neurons, revealed a significant up-regulation of both genes in TMT+NPY-treated rats compared with all other groups. To explore the early molecular events activated by NPY administration, the Sonic Hedgehog (Shh) signalling pathway, which participates in the maintenance of the neurogenic hippocampal niche, was evaluated by qPCR 1, 3 and 5 days after NPY-treatment. An early significant up-regulation of Shh expression was detected in TMT+NPY-treated rats compared with all other groups, associated with a modulation of downstream genes. Our data indicate that the neurogenic effect of NPY administration during TMT-induced neurodegeneration involves early Shh pathway activation and results in a functional integration of newly-generated neurons into the local circuit

EuroQol EQ-5D may not adequaltely describe the health of people with disabilities

PURPOSE: To assess whether life-circumstances and factors other than those described in the EuroQol EQ-5D instrument have a systematic influence on how the same EuroQol health-state is valued. METHOD: A simulation exercise whereby health professionals were asked to rate the health-state of 16 case-scenarios. Each case-scenario was designed to describe the same EuroQol health-state but was varied systematically using a 4 by 2 factorial design, in terms of ability to work, ability to perform usual leisure activity, age and type of disability. A convenience sample of 41 health professionals studying towards a postgraduate Diploma in Rehabilitation formed the study group. RESULTS: The average valuation was significantly higher than that derived from a social tariff model. The following factors contributed to a model which explained 10% of the variability in valuation scores: characteristics of the assessor--years of experience, experience with musculoskeletal disorders, and characteristics of the scenario--disability type, ability to work and ability to perform usual leisure activities (beta weights ranged from 0.093 to 0.253). Ability to perform usual leisure activities was associated with the greatest influence on the valuation rating. Additionally, professional type had a significant influence on rating with general practitioners giving significantly lower valuations. CONCLUSIONS: The same health-state, as defined by EuroQol EQ-5D cannot be regarded as describing similar life-circumstances, sufficient to be valued in the same way. Factors specific to the 'valuer' (experience and professional type) and specific to the 'valuee' (disability type, ability to work or perform usual leisure activities) that are not included in the EQ-5D description are significantly associated with different valuation scores. Caution should be used in applying valuations obtained from social tariff models to a disabled populatio

Consequences of stroke, arthritis and chronic pain: are there important similarities?

PURPOSE: This study aimed to explore the applicability of a previously derived model of what mattered most to people with arthritis across a number of different disabling conditions.METHOD: A qualitative study using interviews with 30 participants from three out-patient groups (rheumatoid arthritis, stroke and chronic pain) was conducted. Participants were asked to identify and discuss the most important consequences of living with their condition. Narratives were explored for similarities and differences within and across conditions.RESULTS: While diagnostically related differences were clearly evident, particularly in categories within the Intrinsic, Extrinsic and Future Issues themes, a marked level of similarity in view was apparent in two themes, Taking Charge and Perceptions of Normality.CONCLUSIONS: The study identified a shared perspective about a number of issues, but also detailed where there were differences. We suggest explicit consideration of the themes highlighted in this research, and a deeper understanding of the inter-relatedness of seemingly separate issues will help health professionals and researchers re-think ways of working with people who have disabling conditions, and identify different factors to address in measuring the success of rehabilitation

Community ambulation after stroke: how important and obtainable is it an what measures appear predictive?

OBJECTIVES: To assess how important community ambulation is to stroke survivors and to assess the relation between the level of community ambulation achieved and other aspects of mobility.DESIGN: A multicenter observational survey.SETTING: Community setting in New Zealand.PARTICIPANTS: One hundred fifteen stroke survivors living at home were referred from physical therapy (PT) services at 3 regional hospitals at the time of discharge and were assessed within 1 week after returning home. Another 15 people with stroke who did not require further PT when discharged were assessed within 2 weeks after they returned home to provide insight into community ambulation status for those without mobility impairment, as recognized by health professionals.INTERVENTIONS: Not applicable.MAIN OUTCOME MEASURES: Self-reported levels of community ambulation ascertained by questionnaire, gait velocity (m/min), Functional Ambulation Categories (FAC) score, and Rivermead Mobility Index (RMI) score.RESULTS: Mean gait velocity for the participants was 53.9 m/min (95% confidence interval [CI], 52.3-61.1) mean treadmill distance was 165.5 m (95% CI, 141.6-189.5); median RMI score was 14; and median FAC score was 6. Mobility scores for the 15 people who did not require PT were within the normal range. Based on self-reported levels of ambulation, 19 (14.6%) participants were unable to leave the home unsupervised, 22 (16.9%) were walking as far as the letterbox, 10 (7.6%) were limited to walking within their immediate environment, and 79 (60.7%) could access shopping malls and/or places of interest. Participants with different levels of community ambulation showed a significant difference in gait velocity (P&lt;.001). The ability to "get out and about" in the community was considered to be either essential or very important by 97 subjects (74.6%). CONCLUSIONS: Community ambulation is a meaningful outcome after stroke. However, despite good mobility outcomes on standardized measures for this cohort of home-dwelling stroke survivors, nearly one third were not getting out unsupervised in the community. Furthermore, gait velocity may be a measure that discriminates between different categories of community ambulation. These findings may have implications for PT practice for people with mobility problems after stroke

Duration of condition is unrelated to health-state valuation on the EuroQol

OBJECTIVE: To determine whether health valuations, such as those used in economic evaluation, are affected by duration of a health condition. People with disabling health conditions tend to value health more highly than members of the general population, and one explanation for this is that over time their experience of living with a disabling illness changes the way in which they value health. If this is so, a relationship between the duration of an individual's disabling health condition and the valuation they assign to their health-state might reasonably be expected. DESIGN: A postal survey using the EuroQoL (EQ-5D) instrument to collect descriptions and valuations for health from people who reported a diagnosis of either stroke or multiple sclerosis. Contact with participants was made through national support organizations and questionnaires were returned by mail. RESULTS: Eight hundred and ninety-four people completed the survey. One hundred (11 %) had one health-state indicating moderate problems in all five dimensions of the EQ-5D descriptive profile. For people with this health-state, analysis of covariance showed no relationship between valuation of health-state and time from onset of illness (F = 0.38, p = 0.54). This finding applied irrespective of the diagnosis, and for some other less frequently reported health-states. CONCLUSION: Clinical experience suggests that over time people adapt to long-term disability. However we found no evidence to support the proposition that higher health-state valuations by people with disabling conditions are explained by the actual duration of their condition