Prognostic factors in the subacute phase after stroke for the future residence after six months to one year. A systematic review of the literature

Prognostic Value of Dysphagia for Activities of Daily Living Performance and Cognitive Level after Stroke

Objectives

The purpose of this study was to examine the association between baseline dysphagia and the improvement of activities of daily living performance and cognitive level among inpatients after stroke.

Methods

This was a retrospective cohort study of patients undergoing convalescent rehabilitation after stroke. Dysphagia was assessed using the Food Intake LEVEL Scale. Outcomes were the motor and cognitive scores of the Functional Independence Measure (FIM) at discharge. Multiple regression analysis was performed to examine the association between dysphagia at admission and these outcomes.

Results

There were 499 participants with a median age of 74 years. A multiple regression analysis was carried out after adjusting for potential confounders including age and sex. Dysphagia at admission was independently and negatively associated with motor (β=-0.157, P<0.001) and cognitive (β=-0.066, P=0.041) FIM scores at discharge.

Conclusions

Baseline dysphagia in patients after stroke was negatively associated with improvement in performance of activities of daily living and cognitive level.

Prediction of hospitalization time and independence level with functional outcomes for patients with acute stroke: a retrospective study

OBJECTIVES

The objective of this study was to develop predictive models for estimating the length of stay (LOS) with standardized clinical outcome measures (Functional Independence Measure, Trunk Impairment Scale, Postural Assessment Scale for Stroke Patients, Fugl Meyer Assessment Scale, and Functional Ambulation Category) during acute care setting.

METHODS

One hundred sixty-nine patients were included in the retrospective study. Predictors chosen for the LOS included scores of functional outcome measures at admission. We used Spearman's rank correlation coefficients to calculate correlations among clinical outcome measures and LOS, stepwise multiple regression analysis to develop a predictive model, and receiver operating characteristics curve to analyze the predictive value of explanatory factors obtained from the previous model for discharge Functional Independence Measure score.

RESULTS

The predictive equation explained 81% of the variance in LOS. The most important predictors were trunk impairment, motor function of the upper extremity, walking ability, and independence level at admission. The receiver operating characteristic curve was obtained with a cut-off score of 13 points for the Trunk Impairment Scale, 47 points for Fugl Meyer Assessment-Upper Extremity, and 2 points for Functional Ambulation Category, demonstrating the highest percentage of the accurately predicted ability of independence level at discharge.

DISCUSSION

The models presented in this study could help clinicians and researchers to predict the LOS and discharge independence level of clinical outcomes for patients with acute stroke enrolled in an acute care setting.

Factors influencing trunk control recovery after intensive rehabilitation in post-stroke patients: a multicentre prospective study

BACKGROUND

Trunk control plays a crucial role in the stroke rehabilitation, but it is unclear which factors could influence the trunk control after an intensive rehabilitation treatment.

OBJECTIVES

To study which demographic, clinical and functional variables could predict the recovery of trunk control after intensive post-stroke inpatient rehabilitation.

METHODS

Subjects with acute, first-ever stroke were enrolled and clinical and data were collected at admission and discharge. The primary outcome was considered the trunk control measured by the Trunk Control Test (TCT). The data were analyzed by a univariate and multivariate logistic regressions.

RESULTS

Two hundred forty-one post-stroke patients were included. All baseline variables significantly associated to TCT at discharge in the univariate analysis (i.e. gender, NIHSS neglect item at admission, presence of several complexity markers, TCT total score at admission, NIHSS total score, pre-stroke modified Rankin Scale, Fugl-Meyer Assessment motor and sensitivity score) were entered in the multivariate analysis. The multivariate regression showed that age (p = .003), admission NIHSS total score (p = .001), admission TCT total score (p < .001) and presence of depression (p = .027) independently influenced the TCT total score at discharge (R² = 61.2%).

CONCLUSIONS

Age, admission neurological impairment (NIHSS total score), trunk control at the admission (TCT total score), and presence of depression independently influenced the TCT at discharge. These factors should be carefully assessed at the baseline to plan a tailoring rehabilitation treatment achieving the best trunk control performance at discharge.

Predictive discriminative accuracy of walking abilities at discharge for community ambulation levels at 6 months post-discharge among inpatients with subacute stroke

[Purpose] This study aimed to compare the predictive accuracy of walking ability at discharge among subacute stroke inpatients at 6 months post-discharge in terms of community ambulation level and establish optimal cut-off values. [Participants and Methods] This prospective observational study included 78 patients who completed follow-up assessments. Patients were classified into three groups based on the Modified Functional Walking Category (household/most limited community walkers, least limited community walkers, and unlimited community walkers) obtained by telephone survey at 6 months post-discharge. Predictive accuracy and cut-off values for discriminating among groups were calculated from 6-minute walking distance and comfortable walking speed measured at the time of discharge using receiver operating characteristic curves. [Results] Between household/most limited and least limited community walkers, 6-minute walking distance and comfortable walking speed offered similar predictive accuracy (area under the curve, 0.6-0.7), with cut-off values of 195 m and 0.56 m/s, respectively. Between least limited and unlimited community walkers, the areas under the curve were 0.896 for 6-minute walking distance and 0.844 for comfortable walking speed, with cut-off values of 299 m and 0.94 m/s, respectively. [Conclusion] Walking endurance and walking speed among inpatients with subacute stroke provided superior predictive accuracy for unlimited community walkers at 6 months post-discharge.

Association between the Cognitive-Related Behavioral Assessment Severity Stage and Activities of Daily Living Required for Discharge to Home in Patients with Stroke: A Cross-Sectional Study

This study aimed to characterize cognitive function examined using Cognitive-related Behavioral Assessment (CBA) in activities of daily living (ADLs). According to CBA severity at discharge, 791 patients were assigned to five groups (most severe, severe, moderate, mild, and normal). The total scores for Functional Independence Measure (FIM) motor items were compared for each group. Multiple logistic regression analysis was performed to clarify the association between CBA severity and independence in ADL items. Independence in each ADL according to CBA severity was 0-4.8%, 26.8-45.0%, 84.3-91.0%, and 97.2-100% for all ADLs in the most severe to severe, moderate, mild, and normal groups, respectively. Significant differences were found in the FIM motor score according to CBA severity between the groups (p < 0.01). A mild or normal CBA was associated with a higher odds ratio (OR) for dressing the upper body (OR = 21.90; 95% confidence interval (CI), 13.50-35.70), bladder management (OR = 11.60; 95% CI, 7.21-18.60), transfers to the bed/chair/wheelchair (OR = 18.30; 95% CI, 11.40-29.40), transfers to the toilet (OR = 18.30; 95% CI, 11.40-29.30), and walking (OR = 6.60; 95% CI, 10.60-26.10). A CBA severity greater than mild (23 points) was associated with independence in ADLs that are important for discharge to home.

Barriers and facilitators linked to discharge destination following inpatient rehabilitation after traumatic brain injury in older adults: a qualitative study

PURPOSE

To identify facilitators and barriers associated with returning home for older adults having received inpatient rehabilitation after traumatic brain injury (TBI).

METHODS

A qualitative design was used. Five older patients with TBI and four family caregivers were interviewed and six healthcare professionals participated in a focus group.

RESULTS

Main facilitators to returning home highlighted by all participants were: (1) Patient's adequate health condition and functional status, (2) Access to health and other services at home, (3) Availability of help from a family caregiver. Conversely, if one of these factors was not met, it represented a barrier. Other facilitators identified were (4) Attachment to one's home, (5) Feeling of commitment toward a loved one, (6) Having the possibility of going through a transitional phase, (7) United front between the patient and the family caregiver towards a return home. Additional barriers to returning home included: (8) Incongruent perspectives, and (9) Unclear knowledge about available health and other services at home.

CONCLUSION

The results of this study could be translated into a practical tool to guide patients, families and professionals in the decision about returning home or exploring an alternative option after inpatient rehabilitation for TBI in older adults.IMPLICATIONS FOR REHABILITATIONWhen orienting an older patient home or to an alternative living environment after a traumatic brain injury (TBI), the perspective of rehabilitation professionals can differ from that of patients and caregivers.Professionals tend to emphasize security, whereas patients and caregivers' focus on the well-being associated with home and on the importance of being with their loved one.Integrating the views, values and wishes of older patients with TBI and their caregivers will support a shared decision-making approach for orientation after rehabilitation.

Socio-environmental predictive factors for discharge destination after inpatient rehabilitation in patients with stroke: a systematic review and meta-analysis

PURPOSE

To identify which of the socio-environmental factors of patients with stroke are predictive for discharge to their home after inpatient rehabilitation. Because discharge planning is a key component of rehabilitation, it is important to recognize the predictive factors for a discharge home. Other systematic reviews demonstrated the value of functional outcome measures. This review adds to the current literature by assessing the predictive value of socio-environmental factors, which shape the context in which a person lives.

METHODS

We performed a systematic search in seven databases. Two independent reviewers selected studies and assessed them for methodological quality. We extracted data to estimate pooled odds ratio for household situation, social support, ethnicity and socioeconomic status.

RESULTS

Forty studies were included. Significant estimates were found for living with others (OR 2.60; 95%CI 1.84-3.68), having support at home (OR 11.48; 95%CI 6.52-20.21), being married (OR 2.05; 95%CI 1.80-2.33) and living at home before stroke (OR 31.01; 95%CI 7.38-130.18).

CONCLUSION

Living at home and benefiting from social support, including living with others, are important factors to consider during discharge planning after stroke. Further research should consider the impact of socioeconomic status.IMPLICATIONS FOR REHABILITATIONEvaluating the social and environmental factors of patients with stroke plays an important role in discharge planning.Next to functional status, caregiver availability (support at home) is among the strongest predictive factors for discharge home.To assess caregiver availability, the presence of a willing and able caregiver should be surveyed at admission.Further predictive factors for discharge home are cohabitation and marital status.

The Effect of Sham Controlled Continuous Theta Burst Stimulation and Low Frequency Repetitive Transcranial Magnetic Stimulation on Upper Extremity Spasticity and Functional Recovery in Chronic Ischemic Stroke Patients

OBJECTIVE

This randomized controlled study examined the effect of continuous theta burst stimulation (cTBS) and low frequency repetitive transcranial magnetic stimulation (rTMS) on upper extremity spasticity and functional recovery in chronic ischemic stroke patients.

MATERIALS AND METHODS

Twenty chronic ischemic stroke patients were randomized into three groups as real rTMS group (n = 7), real cTBS group (n = 7) and sham cTBS group (n = 6), in which real rTMS with physical therapy (PT), real cTBS with PT and sham cTBS with PT were applied in 10 sessions, respectively. The evaluation parameters were assessed at pre-treatment, post-treatment and follow up at 4 weeks.

RESULTS

Ten sessions of real rTMS or real cTBS combined with PT were found beneficial in motor functional recovery and daily living activities both at post-treatment and follow up at 4 weeks (p ˂ 0.05). In the sham cTBS group, functional improvement was not significant (p > 0.05). In addition, in the real rTMS group, elbow flexor, pronator, wrist flexor and finger flexor spasticity were significantly decreased; in the real cTBS group, significant decrease was observed in the elbow flexor and wrist flexor spasticity (p ˂ 0.05). In comparison with sham cTBS group, only in the real cTBS group, significant improvement was observed in the level of wrist flexor spasticity at follow up at 4 weeks (p ˂ 0.017).

CONCLUSIONS

In this study, it was observed that real cTBS or real rTMS combined with PT provided improvement on upper extremity motor functions and daily living activities in chronic ischemic stroke patients, but improvement in spasticity was limited.

Exploring discharge destination following severe stroke

Background:

Patients with severe stroke frequently present with substantial impairments but are often not prioritised for post-discharge rehabilitation. There is a need to determine where these patients are discharged to in order to facilitate appropriate allocation of post-discharge pathway resources.

Aim:

The present study aimed to describe the discharge pathways of patients with severe stroke and to identify predictors of discharge destination for these patients.

Method:

A descriptive, retrospective design was utilised to determine the discharge destination for 770 patients with severe stroke in Queensland, Australia. Binomial logistic regression was used to determine the variables that predicted discharge destination.

Results:

The results indicated that 58.44% of patients were discharged home (n = 450). Age, length of stay, discharge ward and geographical region emerged as significant predictors of discharge destination. The full model containing all predictors was statistically significant and, as a whole, explained 36.50% of the variance in discharge destination.

Conclusion:

These results highlight the importance of these variables in influencing the outcomes of patients with severe stroke, which may assist post-hospital discharge services in allocating resources for patients with severe stroke.

Functional Performance and Discharge Setting Predict Outcomes 3 Months After Rehabilitation Hospitalization for Stroke

BACKGROUND

Some clinical features of patients after stroke may be modifiable and used to predict outcomes. Identifying these features may allow for refining plans of care and informing estimates of posthospital service needs. The purpose of this study was to identify key factors that predict functional independence and living setting 3 months after rehabilitation hospital discharge by using a large comprehensive national data set of patients with stroke.

METHODS

The Uniform Data System for Medical Rehabilitation was queried for the records of patients with a diagnosis of stroke who were hospitalized for inpatient rehabilitation from 2005 through 2007. The system includes demographic, administrative, and clinical variables collected at rehabilitation admission, discharge, and 3-month follow-up. Primary outcome measures were the Functional Independence Measure score and living setting 3 months after rehabilitation hospital discharge.

RESULTS

The sample included 16,346 patients (80% white; 50% women; mean [SD] age, 70.3 [13.1] years; 97% ischemic stroke). The strongest predictors of Functional Independence Measure score and living setting at 3 months were those same factors at rehabilitation discharge, despite considering multiple other predictor variables including age, lesion laterality, initial neurologic impairment, and stroke-related comorbid conditions.

CONCLUSIONS

These data can inform clinicians, patients with stroke, and their families about what to expect in the months after hospital discharge. The predictive power of these factors, however, was modest, indicating that other factors may influence postacute outcomes. Future predictive modeling may benefit from the inclusion of educational status, socioeconomic factors, and brain imaging to improve predictive power.

Factors associated with successful home discharge after inpatient rehabilitation in frail older stroke patients

Background

Stroke is a highly prevalent disease among older people and can have a major impact on daily functioning and quality of life. When community-dwelling older people are hospitalized due to stroke, discharge to an intermediate care facility for geriatric rehabilitation is indicated when return to the previous living situation is expected but not yet possible. However, a substantial proportion is still unable to return home after discharge and has to be admitted to a residential care setting. This study aims to identify which factors are associated with home discharge after inpatient rehabilitation among frail and multimorbid older stroke patients.

Methods

This study is a longitudinal cohort study among 92 community-dwelling stroke patients aged 65 years or over. All patients were admitted to one of eight participating intermediate care facilities for geriatric rehabilitation, under the expectation to return home after rehabilitation. We examined whether 16 potentially relevant factors (age; sex; household situation before admission; stroke history; cardiovascular disorders; diabetes mellitus; multimorbidity; cognitive disability; neglect; apraxia; dysphagia; urinary and bowel incontinence; emotional problems; sitting balance; daily activity level; and independence in activities of daily living) measured at admission were associated with discharge to the former living situation. Logistic regression analysis was used for statistical analysis.

Results

Mean age of the patients was 79.0 years (SD 6.4) and 51.1% was female. A total of 71 patients (77.1%) were discharged to the former living situation within 6 months after the start of geriatric rehabilitation. Of the 16 factors analysed, only a higher level of independence in activities of daily living at admission was significantly associated with home discharge.

Conclusions

Our study shows that the vast majority of previously identified factors predicting home discharge among stroke patients, could not predict home discharge among a group of frail and multimorbid older persons admitted to geriatric rehabilitation. Only a higher level of independence in activities of daily living at admission was significantly related to home discharge. Additional insight in other factors that might predict home discharge after geriatric rehabilitation among this specific group of frail older stroke patients, is needed. Trial registration: ISRCTN ISRCTN62286281. Registered 19-3-2010.

Economic burden of stroke: a systematic review on post-stroke care

OBJECTIVES

Stroke is a leading cause for disability and morbidity associated with increased economic burden due to treatment and post-stroke care (PSC). The aim of our study is to provide information on resource consumption for PSC, to identify relevant cost drivers, and to discuss potential information gaps.

METHODS

A systematic literature review on economic studies reporting PSC-associated data was performed in PubMed/MEDLINE, Scopus/Elsevier and Cochrane databases, Google Scholar and gray literature ranging from January 2000 to August 2016. Results for post-stroke interventions (treatment and care) were systematically extracted and summarized in evidence tables reporting study characteristics and economic outcomes. Economic results were converted to 2015 US Dollars, and the total cost of PSC per patient month (PM) was calculated.

RESULTS

We included 42 studies. Overall PSC costs (inpatient/outpatient) were highest in the USA ($4850/PM) and lowest in Australia ($752/PM). Studies assessing only outpatient care reported the highest cost in the United Kingdom ($883/PM), and the lowest in Malaysia ($192/PM). Fifteen different segments of specific services utilization were described, in which rehabilitation and nursing care were identified as the major contributors.

CONCLUSION

The highest PSC costs were observed in the USA, with rehabilitation services being the main cost driver. Due to diversity in reporting, it was not possible to conduct a detailed cost analysis addressing different segments of services. Further approaches should benefit from the advantages of administrative and claims data, focusing on inpatient/outpatient PSC cost and its predictors, assuring appropriate resource allocation.

Clinical measurement tools to assess trunk performance after stroke: a systematic review

INTRODUCTION

Stroke may result in decreased trunk muscle strength and limited trunk coordination, frequently determining loss of autonomy due to the trunk impairment. Furthermore, sitting balance has been repeatedly identified as an important predictor of motor and functional recovery after stroke. Given the importance of the trunk, it is therefore mandatory that validated tools be available to assess its performance. A systematic review of the currently available clinical measurement tools to assess trunk performance after stroke has been carried out.

EVIDENCE ACQUISITION

We searched the PubMed database from January 2006 to April 2017 to select articles which reported or included a clinical measure of trunk performance used in an adult stroke population. The data collected were integrated with the results of a previous review published in 2006. A total of 302 articles were identified, of which 19 were eligible for inclusion.

EVIDENCE SYNTHESIS

Numerous clinical tools have been validated to assess trunk performance after stroke, including the Trunk Control Test, the Trunk Impairment Scale, the Postural Assessment Scale for Stroke, the Ottawa Sitting Scale, the Modified Functional Reach Test, the Function In Sitting Test, the Physical Ability Scale, the Trunk Recovery Scale, the Balance Assessment in Sitting and Standing Positions, and the and Sitting-Rising Test.

CONCLUSIONS

Several scales and tests have been demonstrated to be valid for assessing trunk performance in stroke. Some of these have already been refined by Rasch analysis to increase their psychometric characteristics. Further psychometric analysis of these tools in large and different samples is, however, still needed.

The Stroke unit Discharge Guideline, a prognostic framework for the discharge outcome from the hospital stroke unit. A prospective cohort study

Objective: To investigate which factors during the subacute phase post stroke have predictive value for the discharge outcome from the hospital stroke unit.

Methods: In a prospective cohort of 338 patients admitted to a hospital stroke unit 26 potentially prognostic factors, arranged in clinical and social subdomains, were scored and analysed by binary logistic regression analysis. The outcome of the research consisted of the various discharge destinations.

Results: The overall predictive value of the discharge model is high (91%). Factors predictive of a poor discharge outcome are a low Barthel Index score (odds ratio (OR) 0.78 per point increase; p &lt 0.001), a poor sitting balance (OR 5.96; p &lt 0.001), a depression (OR 7.23; p &lt 0.001), poststroke cognitive disability (OR 3.51; p = 0.007) and older age (OR 1.05 per point increase; p = 0.008). If present, a personality disorder, premorbid cognitive disability and premorbid functional disability all show a tendency towards poor discharge outcome, but these factors did not reach statistical significance in this study, possibly due to their low prevalence. Readiness of the family circle to provide support was only significant in the univariate analysis.

Conclusions: Somatic, biological and psychological factors predict the discharge outcome. Functional and cognitive factors play a decisive role in the future ability to live independently after a stroke. The prognostic importance of social factors could not be demonstrated. Urinary incontinence did not emerge as a prognostic factor. This is in contrast to scientific findings till now, but in accordance with clinical experience.

Factors influencing home discharge after inpatient rehabilitation of older patients: a systematic review

Background

Although rehabilitation for older patients has the potential to improve function and prevent admission to nursing homes, returning home after discharge is not possible for all patients. Better understanding of patient factors related to discharge home may lead to more realistic rehabilitation goals, more targeted rehabilitation interventions and better preparation of both patient and informal caregiver for discharge. Various studies provided insight into factors related to home discharge after stroke rehabilitation, but we still lack insight into factors related to home discharge in non-stroke patients. Therefore, the aim of this review is to provide an overview of factors influencing home discharge in older non-stroke patients admitted to an inpatient rehabilitation unit.

Methods

A systematic literature search was executed in the databases PubMed, EMBASE, CINAHL and Web of Science to retrieve articles published between January 2000 and October 2015. The search focused on factors related to home discharge after rehabilitation for older patients. Studies were included if home discharge after rehabilitation was assessed as an outcome measure and if the non-stroke population was, on average, 65 years or older and admitted to an inpatient rehabilitation unit.

Results

Eighteen studies were included. The methodological quality was moderate to good in 15 studies. The factors significantly associated with home discharge are younger age, non-white ethnicity, being married, better functional and cognitive status, and the absence of depression.

Conclusions

Because various factors are significantly associated with home discharge of older non-stroke patients after rehabilitation, we recommend assessing these factors at admission to the rehabilitation unit. Further research into the factors that lack sufficient evidence concerning their association with home discharge is recommended.

Electronic supplementary material

The online version of this article (doi:10.1186/s12877-016-0187-4) contains supplementary material, which is available to authorized users.

Outcome Predictors in First-Ever Ischemic Stroke Patients: A Population-Based Study

Background. There is scant population-based information regarding predictors of stroke severity and long-term mortality for first-ever ischemic strokes. The aims of this study were to determine the characteristics of patients who initially presented with first-ever ischemic stroke and to identify predictors of severity and long-term mortality. Methods. Data were collected from the population-based Cerebrovascular Aosta Registry. Between 2004 and 2008, 1057 patients with first-ever ischemic stroke were included. Variables analysed included comorbidities, sociodemographic factors, prior-to-stroke risk factors, therapy at admission and pathophysiologic and metabolic factors. Multivariate logistic regression models, Kaplan-Meier estimates, and Cox proportional Hazards model were used to assess predictors. Results. Predictors of stroke severity at admission were very old age (odds ratio [OR] 2.98, 95% confidence interval [CI] 1.75-5.06), female gender (OR 1.73, 95% CI 1.21-2.40), atrial fibrillation (OR 2.76, 95% CI 1.72-4.44), low ejection fraction (OR 2.22, CI 95% 1.13-4.32), and cardioembolism (OR 2.0, 95% CI 1.36-2.93). Predictors of long-term mortality were very old age (hazard ratio [HR] 2.02, 95% CI 1.65-2.47), prestroke modified Rankin scale 3-5 (HR 1.82; 95% CI 1.46-2.26), Charlson Index ≥2 (HR 1.97; 95% CI 1.62-2.42), atrial fibrillation (HR 1.43, 95% CI 1.04-1.98), and stroke severity (HR 3.54, 95% CI 2.87-4.36). Conclusions. Very old age and cardiac embolism risk factors are the independent predictors of stroke severity. Moreover, these factors associated with other comorbid medical conditions influence independently long-term mortality after ischemic stroke.

Severe stroke: patient profile and predictors of favorable outcome

BACKGROUND

Severe stroke carries high rates of mortality and morbidity. The aims of this study were to determine the characteristics of patients who initially presented with severe ischemic stroke, and to identify acute and subacute predictors of favorable clinical outcome in these patients.

METHODS

An observational cohort study, Acute Stroke Registry and Analysis of Lausanne (ASTRAL), was analyzed, and all patients presenting with severe stroke - defined as a National Institute of Health Stroke Scale score of ≥ 20 on admission - were compared with all other patients. In a multivariate analysis, associations with demographic, clinical, pathophysiologic, metabolic and neuroimaging factors were determined. Furthermore, we analyzed predictors of favorable outcome (modified Rankin scale score of ≤ 3 at 3 months) in the subgroup of severe stroke patients.

RESULTS

  Of 1915 consecutive patients, 243 (12.7%) presented with severe stroke. This was significantly associated with cardio-embolic stroke mechanism (odds ratio [OR] 1.74, 95% confidence interval [CI] 1.19-2.54), unknown stroke onset (OR 2.35, 95% CI 1.14-4.83), more neuroimaging signs of early ischemia (mostly computed tomography; OR 2.65, 95% CI 1.79-3.92), arterial occlusions on acute imaging (OR 27.01, 95% CI 11.5-62.9), fewer chronic radiologic infarcts (OR 0.43, 95% CI 0.26-0.72), lower hemoglobin concentration (OR 0.97, 95% CI 0.96-0.99), and higher white cell count (OR 1.05, 95% CI 1.00-1.11). In the 68 (28%) patients with favorable outcomes despite presenting with severe stroke, this was predicted by lower age (OR 0.94, 95% CI 0.92-0.97), preceding cerebrovascular events (OR 3.00, 95% CI 1.01-8.97), hypolipemic pretreatment (OR 3.82, 95% CI 1.34-10.90), lower acute temperature (OR 0.43, 95% CI 0.23-0.78), lower subacute glucose concentration (OR 0.74, 95% CI 0.56-0.97), and spontaneous or treatment-induced recanalization (OR 4.51, 95% CI 1.96-10.41).

CONCLUSIONS

Severe stroke presentation is predicted by multiple clinical, radiologic and metabolic variables, several of which are modifiable. Predictors in the 28% of patients with favorable outcome despite presenting with severe stroke include hypolipemic pretreatment, lower acute temperature, lower glucose levels at 24 h, and arterial recanalization.

A systematic review of case-mix adjustment models for stroke

Objective:

To identify any externally validated prognostic model for predicting outcome in unselected populations following acute stroke comprising variables feasible for collection in routine care.

Data sources:

Searches were run in MEDLINE, EMBASE, CINAHL, PsycInfo, AMED and ISI Web of Science with no limits on publication date or language.

Review methods:

Any study describing the development or external validation of a discernible prognostic model to predict any valid outcome following acute stroke was included. Papers were retained if they met pre-specified inclusion criteria identified from previous reviews and pertinent discussion papers. Data extraction focused on methodological quality of model development, generalizability and feasibility of variable collection. Model performance was examined through consideration of external validation studies.

Results:

Seventeen externally validated models were identified from 43 papers fulfilling inclusion criteria. Quality of studies describing model development was variable and model performance in external validation studies was generally poor. Models were generally constructed through secondary use of randomized trial or stroke database data. Prognostic variables broadly encompassed markers of stroke severity, pre-stroke function and comorbidities. One model that fulfilled the review criteria and had extensive external validation in a range of post-stroke populations was identified (the Six Simple Variables model).

Conclusion:

The Six Simple Variables model performed well in six external validation studies, although prediction of outcome in patients with milder strokes was less reliable. Other models identified in this review have been developed using robust methodology but comprise more complex clinical variables which may limit their utility in routine stroke care.

Review of quality assessment tools for the evaluation of pharmacoepidemiological safety studies

OBJECTIVES

Pharmacoepidemiological studies are an important hypothesis-testing tool in the evaluation of postmarketing drug safety. Despite the potential to produce robust value-added data, interpretation of findings can be hindered due to well-recognised methodological limitations of these studies. Therefore, assessment of their quality is essential to evaluating their credibility. The objective of this review was to evaluate the suitability and relevance of available tools for the assessment of pharmacoepidemiological safety studies.

DESIGN

We created an a priori assessment framework consisting of reporting elements (REs) and quality assessment attributes (QAAs). A comprehensive literature search identified distinct assessment tools and the prespecified elements and attributes were evaluated.

PRIMARY AND SECONDARY OUTCOME MEASURES

The primary outcome measure was the percentage representation of each domain, RE and QAA for the quality assessment tools.

RESULTS

A total of 61 tools were reviewed. Most tools were not designed to evaluate pharmacoepidemiological safety studies. More than 50% of the reviewed tools considered REs under the research aims, analytical approach, outcome definition and ascertainment, study population and exposure definition and ascertainment domains. REs under the discussion and interpretation, results and study team domains were considered in less than 40% of the tools. Except for the data source domain, quality attributes were considered in less than 50% of the tools.

CONCLUSIONS

Many tools failed to include critical assessment elements relevant to observational pharmacoepidemiological safety studies and did not distinguish between REs and QAAs. Further, there is a lack of considerations on the relative weights of different domains and elements. The development of a quality assessment tool would facilitate consistent, objective and evidence-based assessments of pharmacoepidemiological safety studies.

What is the Probability of Patients who are Nonambulatory after Stroke Regaining Independent Walking? a Systematic Review

Patients after stroke who are nonambulatory require resources, and independent walking becomes a major determinant of the ability to participate in activities of daily living. Our objective was to determine the probability of walking for patients who are nonambulatory in the first month after stroke. We performed a systematic review and meta-analysis of consecutive, prospective studies of nonambulatory patients within the first month after stroke in rehabilitation and acute units. The outcomes were the probability of achieving independent walking at three-, six- and 12 months after stroke. Twenty-six studies were included in the review. Seventeen studies comprising 2856 participants were entered into meta-analyses. For initially nonambulatory stroke patients managed in a rehabilitation unit, the probability of independent walking was 0·60 (95% CI 0·47–0·74, 1373 participants) at three-months, 0·65 (95% CI 0·53–0·77, 444 participants) at six-months and 0·91 (95% CI 0·81–1·00, 24 participants) at 12 months. For patients managed in an acute unit, the probability of independent walking was 0·39 (95% CI 0·27–0·52, 634 participants) at three-months, 0·69 (95% CI 0·46–0·92, 405 participants) at six-months and 0·74 (95% CI 0·59–0·88, 34 participants) at 12 months. 60% of patients managed in a rehabilitation unit who are nonambulatory in the first month after stroke will regain independent walking compared with 39% of those managed in an acute unit. This information can be used clinically to make decisions about allocation of rehabilitation resources, education of patients and carers, and for discharge planning.

Development quality criteria to evaluate nontherapeutic studies of incidence, prevalence, or risk factors of chronic diseases: pilot study of new checklists

OBJECTIVE

To develop two checklists for the quality of observational studies of incidence or risk factors of diseases.

STUDY DESIGN AND SETTING

Initial development of the checklists was based on a systematic literature review. The checklists were refined after pilot trials of validity and reliability were conducted by seven experts, who tested the checklists on 10 articles.

RESULTS

The checklist for studies of incidence or prevalence of chronic disease had six criteria for external validity and five for internal validity. The checklist for risk factor studies had six criteria for external validity, 13 criteria for internal validity, and two aspects of causality. A Microsoft Access database produced automated standardized reports about external and internal validities. Pilot testing demonstrated face and content validities and discrimination of reporting vs. methodological qualities. Interrater agreement was poor. The experts suggested future reliability testing of the checklists in systematic reviews with preplanned protocols, a priori consensus about research-specific quality criteria, and training of the reviewers.

CONCLUSION

We propose transparent and standardized quality assessment criteria of observational studies using the developed checklists. Future testing of the checklists in systematic reviews is necessary to develop reliable tools that can be used with confidence.

Living setting and utilisation of ADL assistance one year after a stroke with special reference to gender differences

PURPOSE

To examine living setting and need for ADL assistance before and one year after a first-ever stroke with special focus on gender differences.

METHODS

One-year survivors from a population-based stroke study (n = 377) were studied with regard to place of living, need for ADL assistance and who provided the help. Stroke severity, cognitive impairment, post-stroke depression as well as risk factors were evaluated.

RESULTS

Before the stroke 48 patients (13%) lived in special housing (service flats or nursing homes), and one year after the stroke, 50 of the survivors (20%) lived in such accommodations. Before the stroke, 80 (21%) of the patients needed help with their personal ADL, while 90 (36%) needed help after one year. The increased need was fulfilled by relatives. Female spouses more often helped their male counterparts, and they tended to accept a heavier burden. Age, living alone, stroke severity, cognitive impairment, pre-stroke ADL dependency and depression were predictors for special housing.

CONCLUSIONS

In a time when more and more stroke survivors are cared for at home, it is important to pay attention to the situation of the caregivers. Female caregivers seem to be in an especially exposed position by accepting a heavier burden.

The relationship between initial trunk control or postural balance and inpatient rehabilitation outcome after stroke: a prospective comparative study

Objective: To compare the predictive validity of trunk control in sitting position assessed by Trunk Impairment Scale and balance in lying, sitting and standing posture assessed by Postural Assessment Scale for Stroke patients on functional outcome in stroke survivors.

Design: Prospective observational study.

Setting: A single rehabilitation hospital in Italy.

Subjects: Sixty of 68 consecutive subjects admitted to a rehabilitation hospital after stroke.

Main measures: We performed Trunk Impairment Scale and Postural Assessment Scale for Stroke patients at admission to inpatient rehabilitation. Outcome measures at discharge were Functional Independence Measure score and destination (classified as either home or institution).

Results: After adjustment for 14 potential confounders, including Functional Independence Measure score at admission to rehabilitation, both Trunk Impairment Scale and Postural Assessment Scale for Stroke patients scores were significantly associated with the Functional Independence Measure score at discharge (P = 0.010 and P =0.04, respectively), change in the Functional Independence Measure score during rehabilitation (P = 0.003 and P<0.001, respectively), Functional Independence Measure effectiveness (P = 0.024 and P =0.017, respectively) and destination at discharge (P = 0.040 and P =0.032, respectively). The panel of prognostic variables predicted 64—65% of the variance in the final Functional Independence Measure score, 30—35% of the variance in the change of the Functional Independence Measure score during rehabilitation, and 45—46% of the variance in the Functional Independence Measure effectiveness depending on the inclusion of either Trunk Impairment Scale or Postural Assessment Scale for Stroke patients score among the predictors.

Geriatric rehabilitation of stroke patients in nursing homes: a study protocol

BACKGROUND

Geriatric patients are typically underrepresented in studies on the functional outcome of rehabilitation after stroke. Moreover, most geriatric stroke patients do probably not participate in intensive rehabilitation programs as offered by rehabilitation centers. As a result, very few studies have described the successfulness of geriatric stroke rehabilitation in nursing home patients, although it appears that the majority of these patients are being discharged back to the community, rather than being transferred to residential care. Nevertheless, factors associated with the successfulness of stroke rehabilitation in nursing homes or skilled nursing facilities are largely unknown. The primary goal of this study is, therefore, to assess the factors that uniquely contribute to the successfulness of rehabilitation in geriatric stroke patients that undergo rehabilitation in nursing homes. A secondary goal is to investigate whether these factors are similar to those associated with the outcome of stroke rehabilitation in the literature.

METHODS/DESIGN

This study is part of the Geriatric Rehabilitation in AMPutation and Stroke (GRAMPS) study in the Netherlands. It is a longitudinal, observational, multicenter study in 15 nursing homes in the Southern part of the Netherlands that aims to include at least 200 patients. All participating nursing homes are selected based on the existence of a specialized rehabilitation unit and the provision of dedicated multidisciplinary care. Patient characteristics, disease characteristics, functional status, cognition, behavior, and caregiver information, are collected within two weeks after admission to the nursing home. The first follow-up is at discharge from the nursing home or one year after inclusion, and focuses on functional status and behavior. Successful rehabilitation is defined as discharge from the nursing home to an independent living situation within one year after admission. The second follow-up is three months after discharge in patients who rehabilitated successfully, and assesses functional status, behavior, and quality of life. All instruments used in this study have shown to be valid and reliable in rehabilitation research or are recommended by the Netherlands Heart Foundation guidelines for stroke rehabilitation.Data will be analyzed using SPSS 16.0. Besides descriptive analyses, both univariate and multivariate analyses will be performed with the purpose of identifying associated factors as well as their unique contribution to determining successful rehabilitation.

DISCUSSION

This study will provide more information about geriatric stroke rehabilitation in Dutch nursing homes. To our knowledge, this is the first large study that focuses on the determinants of success of geriatric stroke rehabilitation in nursing home patients.

Visuospatial function is a significant contributor to functional status in patients with Alzheimer's disease

BACKGROUND

Contribution of visuospatial abilities to the functional status in patients with Alzheimer's disease (AD) has been controversial.

AIM

To address whether visuospatial abilities have independent association with functional measures in patients with AD.

METHODS

We regressed performances on a global cognitive (the revised Hasegawa Dementia Scale: HDSR), executive/ visuoconstruction (Clock drawing), visuoperception (Clock reading: CRT), simple visuoconstruction (figure copying), and frontal behavioral tasks on measures of basic and instrumental activities of daily living (BADL and IADL) in 57 patients (78.0 + 6.1 years) with AD of various severity (mean HDSR score: 16.0 + 5.9). We sought independent contributions of these visuospatial measures to functional status.

RESULTS

Performance on the CRT contributed significantly to BADL and IADL and the results of HDSR contributed to IADL. Results of figure copying related significantly to BADL especially in mild AD.

CONCLUSION

Visuospatial ability is one of the important contributors to functional status.

The development of a clinical practice stroke guideline for physiotherapists in The Netherlands: A systematic review of available evidence

PURPOSE

To develop a clinical practice guideline for the physiotherapy management of patients with stroke as support for the clinical decision-making process, especially with respect to the selection of appropriate interventions, prognostic factors and outcome measures.

INTRODUCTION

Physiotherapists have a high caseload of patients with stroke, so there is a need to identify effective evidence-based physiotherapy procedures. The availability of a guideline that includes information about prognostic factors, interventions, and outcome measures would facilitate clinical decision-making.

METHOD

A systematic computerized literature search was performed to identify evidence concerning the use of: (i) prognostic factors related to functional recovery; (ii) physiotherapy interventions in patients with stroke; and (iii) outcome measures to assess patients' progress in functional health. Experts, physiotherapists working in the field of stroke rehabilitation, and a multidisciplinary group of health professionals reviewed the clinical applicability and feasibility of the recommendations for clinical practice and their comments were used to compose the definitive guideline.

RESULTS

Of 9482 relevant articles, 322 were selected. These were screened for methodological quality. Seventy-two recommendations for clinical practice were retrieved from these articles and included in the guideline: Six recommendations concerned the prediction of functional recovery of activities of daily living (ADL), including walking ability and hand/arm use; 65 recommendations concerned the choice of physiotherapy interventions; and 1 recommendation concerned the choice of outcome instrument to use. A core set of seven reliable, responsive, and valid outcome measures was established, to determine impairments and activity limitations in patients with stroke.

CONCLUSIONS

The guideline provides physiotherapists with an evidence-based instrument to assist them in their clinical decision making regarding patients with stroke. As most of the recommendations included in the guideline came from studies of patients in the post acute and chronic phase of stroke, and in general involved patients with less severe and uncomplicated stroke, more needs to be learned about the more complex cases.

Consequences of severity at stroke onset for health-related quality of life (HRQL) and informal care: A 1-year follow-up in elderly stroke survivors

Severity of stroke influences the possibility of living at homes after stroke and has been discussed as one possible prognostic factor for functional outcome and future residence. The objective was to explore how severity at stroke onset affects health-related quality of life (HRQL) and informal care among 147 stroke survivors and their spouses living in their own homes 1 year after acute stroke. This study is part of "The Göteborg 70+ Stroke Study" which included 249 elderly persons after acute stroke. One year after stroke 59% of the survivors, 94 women and 53 men, lived in their own homes. This group forms the present study population. They were subdivided according to the severity of stroke at onset, as assessed by Barthel index (BI) ratings in the acute phase. The stroke survivors rated their HRQL and were interviewed in their own homes to assess the effects of stroke on daily life activities and informal care after 1 year. Informal caregivers were found to assist their spouses to a great extent, regardless of severity of stroke. Persons with moderate/severe stroke at onset received more informal as well as more formal help than the ones with mild stroke. As expected, the group with moderate/severe stroke also was more dependent on personal assistance, used more assistive devices (ADs) and rated their HRQL lower. However, persons who were assessed as mild stroke at onset also needed informal care, particularly with more complex tasks. Gender differences were obvious, since many women were living alone after their partner had died, while the men usually had assistance from their spouses. Noteworthy is that informal caregivers assisted their spouses to a large extent, regardless of severity of stroke at onset. Different kind of support programs, extended day rehabilitation centers and more relieve places should be developed. That could possibly improve the life situation for the elderly stroke survivors and their caregivers, generally an elderly spouse.

Impact of Patient's Weight on Stroke Rehabilitation Results

OBJECTIVE

To evaluate the influence of patient's weight on rehabilitation results after first stroke.

DESIGN

Retrospective, comparative study. The sample comprised 84 males and females, first-time stroke patients, who had been hospitalized in the department of rehabilitation at the Hartzfeld Geriatric Hospital, Gedera, Israel for a full 3 mos and who, on admission, had scored between 40 and 60 on the total Functional Improvement Measure (FIM) test. We evaluated the difference in total FIM improvement between normal-weight, overweight, and obese patients.

RESULTS

The relative improvement of FIM score was significantly higher in normal-weight patients than in overweight patients, and improvement in overweight patients was significantly higher than in obese ones. We also found a statistically significant negative correlation (r = -0.27, P = 0.014) between relative improvement of FIM score and body mass index (BMI) in the total sample.

CONCLUSIONS

Our study revealed that during the first 12 wks, rehabilitation is statistically significantly less effective in overweight and, particularly, in obese patients (evaluated by BMI). We also found a statistically significant negative association between the individual's BMI and relative improvement of the FIM score, representing the functional status of the stroke patient.

The Barthel Index and modified Rankin Scale as prognostic tools for long-term outcomes after stroke: a qualitative review of the literature

OBJECTIVE

Providing a quantitative prognosis after a stroke is important to clinicians and patients as well as to researchers interested in projecting the results of clinical trials and other studies. Thus, we critically reviewed the evidence supporting the prognostic value of two frequently-used measures, the Barthel Index (BI) and modified Rankin Scale (mRS) for long-term outcomes.

METHODS

A narrative review of the peer-reviewed medical literature obtained by searching Medline 1966 to January 2004--using the phrase '[stroke] AND [Barthel OR Rankin]'--was conducted to assess the strength of the evidence for these measures and answer three main questions: How good are the BI and mRS at predicting (1) the level of care required, (2) the time-course of recovery, and (3) mortality. Abstracts were screened for the presence of actual data on the prognostic impact of BI and mRS on these endpoints, and selected articles were fully reviewed and abstracted. Additional articles were identified from bibliographies of the retrieved papers.

RESULTS

Of 753 abstracts screened, 89 articles were selected for detailed assessment. Early disability and global outcome (< or = 7 days) were shown in 21 studies to be strong predictors of care needs. This relation appears to be mainly biological, not country-specific. Recovery was shown in 18 studies to be strongly related to early BI. In contrast, the 11 studies examining mortality provided insufficient information to directly support the prognostic value of either measure. Key limitations of this review include heterogeneity of available studies (e.g., time-points, outcome, parameterization) and relative lack of information on the mRS.

CONCLUSIONS

Despite the lack of uniformity in existing studies, the evidence overall is quite strong, supporting the use of BI and mRS as prognostic tools. External non-treatment modifiable factors which also determine long-term outcome (e.g., social support) have to be taken into account.

Is improvement in impaired cognition and depressive symptoms in post-stroke patients associated with recovery in activities of daily living?

BACKGROUND AND PURPOSE

Depression and cognitive impairment after stroke are associated with physical functional outcomes, but there are limited data on whether depressive symptoms and cognitive status and improvements independently influence functional status and recovery.

METHODS

In a 6-month prospective cohort study of 141 post-acute stroke patients, demographic and clinical data on admission, and neurological, cognitive, depressive symptoms and functional variables on admission and at 6 months after stroke were measured using the National Institute of Health Stroke Scale (NIHSS), Abbreviated Mental Test (AMT), Geriatric Depression Scale (GDS) and Barthel Index (BI).

RESULTS

On multivariate analysis, severe activities of daily living (ADL) dependence at 6 months was significantly less likely associated with higher baseline AMT score denoting better cognitive status (OR=0.68, 95% CI 0.48-0.97 per score point) and with greater AMT change score denoting greater cognitive improvement (OR=0.61, 95% CI 0.41-0.91 per change score point); it was also more likely with higher baseline NIHSS scores denoting severe neurological impairment, (OR=1.74, 95% CI 1.13-2.63 per point score), NIHSS change score [denoting lesser neurological improvement (OR = 1.83, 95% CI 1.13-2.93 per unit change score)], but was not associated with baseline or change scores of GDS. Greater magnitudes of functional recovery [BI change score (standardized beta)] were associated with better baseline depressive symptoms (-0.21) and improvement (-0.31), but not with cognitive status or improvement, in the presence of other significant variables, neurological status (-0.89) and improvement (-0.65), lower baseline physical functional status (-0.85) and younger age (-0.23).

CONCLUSIONS

These data suggest that improving depressive symptoms in stroke patients may accelerate functional recovery, but the level of physical functioning achieved post-stroke is determined by neurological and cognitive factors, consistent with the evidence that improvement of depressive symptoms through therapeutic intervention is limited by cognitive impairment.

Tools for assessing quality and susceptibility to bias in observational studies in epidemiology: a systematic review and annotated bibliography

BACKGROUND

Assessing quality and susceptibility to bias is essential when interpreting primary research and conducting systematic reviews and meta-analyses. Tools for assessing quality in clinical trials are well-described but much less attention has been given to similar tools for observational epidemiological studies.

METHODS

Tools were identified from a search of three electronic databases, bibliographies and an Internet search using Google. Two reviewers extracted data using a pre-piloted extraction form and strict inclusion criteria. Tool content was evaluated for domains potentially related to bias and was informed by the STROBE guidelines for reporting observational epidemiological studies.

RESULTS

A total of 86 tools were reviewed, comprising 41 simple checklists, 12 checklists with additional summary judgements and 33 scales. The number of items ranged from 3 to 36 (mean 13.7). One-third of tools were designed for single use in a specific review and one-third for critical appraisal. Half of the tools provided development details, although most were proposed for future use in other contexts. Most tools included items for selection methods (92%), measurement of study variables (86%), design-specific sources of bias (86%), control of confounding (78%) and use of statistics (78%); only 4% addressed conflict of interest. The distribution and weighting of domains across tools was variable and inconsistent.

CONCLUSION

A number of useful assessment tools have been identified by this report. Tools should be rigorously developed, evidence-based, valid, reliable and easy to use. There is a need to agree on critical elements for assessing susceptibility to bias in observational epidemiology and to develop appropriate evaluation tools.

Homonymous Hemianopia in Stroke

BACKGROUND

Previous reports have suggested that most cases of homonymous hemianopia (HH) are caused by occipital stroke. However, these reports have not always been supported by brain imaging.

METHODS

We reviewed the medical records of all patients seen in our unit between 1989 and 2004 who had HH documented by formal perimetry or confrontation visual fields and had undergone brain imaging. HHs were divided into those caused by stroke and by non-stroke conditions. The clinical and visual field characteristics were compared in the two groups.

RESULTS

Among 850 patients with 902 HHs, 629 (69.7%) resulted from stroke, of which 531 (84.4%) were from infarction and 98 (15.6%) from primary intraparenchymal hemorrhage. Non-stroke causes included head trauma (123), brain tumor (102), neurosurgical procedures (22), multiple sclerosis (13), and miscellaneous conditions (13). Occipital lesions most commonly resulted from stroke. The configuration of the HH did not predict where in the retrochiasmal visual pathway the responsible lesion lay.

CONCLUSIONS

Ischemic stroke causes most HHs from lesions in the occipital lobe that generally do not produce other neurologic manifestations. The configuration of the HH does not predict the location of the lesion within the retrochiasmal visual pathway.

Development of the Stroke-unit Discharge Guideline: choice of assessment instruments for prediction in the subacute phase post-stroke

The purpose of this paper is to present the design of an evidence-based dataset of assessment instruments for the prognostic factors of the Stroke-unit Discharge Guideline (SDG), a consensus based guideline for the decision of the discharge destination from the hospital stroke unit. In our systematic literature reviews and in known standard works we have looked for assessment instruments which are being used most frequently in stroke care, and subsequently we have searched for information regarding their validity and reliability. For 17 out of the 26 prognostic factors we found known applicable assessment instruments. Clinical feasibility and psychometric properties of most of these instruments are sufficient to good. For two factors we had to construct a new instrument. A simple definition was sufficient for the remaining seven factors. The SDG contains an evidence-based dataset of prognostic factors and assessment instruments, and should be applied at the hospital stroke-unit, which is the first location to start with a uniform use of stroke assessment instruments. The SDG assessment instruments are part of the stroke service chain information system, which contains recently developed specifications for application in web-based electronic patient records nationwide in The Netherlands.

L'âge très élevé constitue-t-il un facteur pronostique du devenir après un premier accident vasculaire cérébral ?

AIM

To determine whether very old age, older than 80 years, after a stroke is a significant predictor of mortality, orientation to a specific care pathway after the acute phase and functional status at 6 months after the stroke.

PATIENTS

A sample of 112 consecutive patients admitted to the emergency department because of a first stroke, with hemiplegia and/or aphasia over 6 months, who satisfied strict inclusion/exclusion criteria. Forty-seven patients were older than 80.

METHOD

After initial diagnosis and enrolment in the study, follow-up assessments were conducted at 48 hours, 15 days and 6 months. Demographic, medical, and radiographic data were collected, and patients were evaluated on the NIHSS, MMSE, Barthel Index, FIM(TM) and FAM scales. Descriptive statistics were generated, as were uni- and multivariate between group comparisons.

RESULTS

Our study shows that after a first stroke, old age is significantly associated with a high rate of death, a low rate of orientation to a physical medicine and rehabilitation unit and return to home but not poorer functional outcome.

CONCLUSION

Old age is therefore a determinant of post stroke management. Further studies are needed to evaluate whether in patient rehabilitation would result in significant functional benefit, considering the high cost of care, high risk of recurrent stroke, and high rate of death.

Systematic review and validation of prognostic models in liver transplantation

A model that can accurately predict post-liver transplant mortality would be useful for clinical decision making, would help to provide patients with prognostic information, and would facilitate fair comparisons of surgical performance between transplant units. A systematic review of the literature was carried out to assess the quality of the studies that developed and validated prognostic models for mortality after liver transplantation and to validate existing models in a large data set of patients transplanted in the United Kingdom (UK) and Ireland between March 1994 and September 2003. Five prognostic model papers were identified. The quality of the development and validation of all prognostic models was suboptimal according to an explicit assessment tool of the internal, external, and statistical validity, model evaluation, and practicality. The discriminatory ability of the identified models in the UK and Ireland data set was poor (area under the receiver operating characteristic curve always smaller than 0.7 for adult populations). Due to the poor quality of the reporting, the methodology used for the development of the model could not always be determined. In conclusion, these findings demonstrate that currently available prognostic models of mortality after liver transplantation can have only a limited role in clinical practice, audit, and research.