Ann Björkdahl

Assessment and Training in a 3-Dimensional Virtual Environment With Haptics: A Report on 5 Cases of Motor Rehabilitation in the Chronic Stage After Stroke

Objective. This exploratory study assessed the possible effectiveness of hemiparetic upper extremity training in subjects with chronic stroke with computer instrumentation (haptic force feedback) and 3-dimensional visualization applied to computer games, as well as to evaluate concurrent computer-assisted assessment of the kinematics of movements and test whether any improvement detected in the computer environment was reflected in activities of daily living (ADLs). Methods. A single-subject repeated-measures experimental design (AB) was used. After baseline testing, 5 patients were assigned to the therapy 3 times a week for 45 min for 5 weeks. Velocity, time needed to reach, and hand path ratio (reflecting superfluous movements) were the outcome measures, along with the Assessment of Motor and Process Skills and the Box and Block test. The follow-up phase (C) occurred 12 weeks later. Results. Improvements were noted in velocity, time, and hand path ratio. One patient showed improvement in occupational performance in ADLs. Conclusions.The application of this strategy of using virtual reality (VR) technologies may be useful in assessing and training stroke patients. The results of this study must be reproduced in further studies. The VR systems can be placed in homes or other nonclinical settings.

Virtual Reality and Haptics as an Assessment Device in the Postacute Phase after Stroke

Virtual reality (VR) technology is altering the health care environment and is changing the options that are available to therapists. This study describes how a haptic device was used as a cinematic assessment utility. Three chronic stroke inpatients at Sahlgrenska University Hospital with left hemisphere damage were assessed. The patients were administered by the box and block manual dexterity test. For comparisons, a reference group was added to the study. Several parameters, including time, speed, and movement of the right upper extremity, were extracted and evaluated. The results indicate that the system shows potential as an assessment device. The feasibility study setup is working well, as is the assessment method. Further research, testing, refinement of the exercises, and use of VR and haptics within neurological rehabilitation are suggested.

Does a short period of rehabilitation in the home setting facilitate functioning after stroke? A randomized controlled trial

Objective: To assess the effect of three weeks of rehabilitation in the home setting for younger patients with stroke with the aim of improving activity level. Design: A randomized controlled study with blinded evaluations at discharge, three weeks, three months and one year after discharge. Setting: Home of the patient or the ordinary day rehabilitation clinic at the university hospital. Subjects: Fifty-eight patients (median age 53 years) consecutively discharged from inpatient rehabilitation with a first occurrence of stroke participated in training directly after discharge. Intervention: Rehabilitation was given for 9 hours/week over three weeks. The home group received individually tailored training, based on the patients needs and desires, with a focus on activities in their natural context. Support and information were also given. The intervention in the day clinic group was aimed mainly at improved functions. Main measures: The main outcome was activity, assessed with the Assessment of Motor and Process Skill (AMPS). The impairment level was also evaluated. Costs were estimated. Result: There were no significant differences between the groups on any of the four assessments. However, there seemed to be an earlier improvement on some measures (including AMPS) for the home group. For both groups there was a greater improvement on the activity level than on the impairment level. The costs of the home group were less than half of the costs of the day clinic group. Conclusion: With the present results, both rehabilitation programmes could be recommended, however, further studies are needed to define patients who may specifically benefit from the home rehabilitation programme. Costs should be taken into consideration.

Can computerized working memory training improve impaired working memory, cognition and psychological health?

Abstract Objective: To study if computerized working memory (WM) training, in the sub-acute phase after acquired brain injury, in patients with impaired WM, improves WM, cognition and psychological health. Research design: A randomized study (n = 47) with an intervention group (IG) and a control group (CG), mean age 47.7 years. The WAIS-III NI, Digit span, Arithmetic, Letter-Number Sequences (Working Memory sub-scale), Spatial span, the Barrow Neurological Institute Screen for Higher Cerebral Functions (BNIS) and the self-rating scales DEX and HADS were administered at baseline and at follow-ups at 6 and 18 weeks. Both groups underwent integrated rehabilitation. The IG also trained with the computerized WM training program, Cogmed QM, which was offered to the CG and followed up after the study completion. Results: Both groups improved after their WM training in Working Memory, BNIS and in Digit span, particularly the reversed section. Both the BNIS and the Digit span differed significantly between the IG and CG due to the greater improvement in the IG after their WM training. Psychological health improved as both groups reported less depressive symptoms and the CG also less anxiety, after the training. Conclusion: Results indicated that computerized WM training can improve working memory, cognition and psychological health.

A randomized study of computerized working memory training and effects on functioning in everyday life for patients with brain injury

Abstract Background: Working memory (WM) problems influence most activities of daily living. The aim was to evaluate if computerized working memory training after brain injury has a significant effect on functioning in daily life. Method: Outpatients with WM deficits, aged 22–63 years, were randomized to either intervention group (IG, n = 20) or control group (CG, n = 18) and received 5 weeks standard rehabilitation. The IG also received WM training with the Cogmed QM training program. Assessments were made before (A1), immediately (A2) and 3 months (A3) after intervention. After follow-up, the CG was offered the computerized training and assessed after this (A4; n = 8). Assessments included the WAIS-III Digit span reversed, Fatigue Impact Scale (FIS), Assessment of Motor and Process Skills (AMPS), Rivermead Behavioural Memory Test-II (RBMT-II) and a WM questionnaire. Results: The IG improved on digit span and FIS, A1–A2, and significantly more than the CG on the WM questionnaire, A1–A3. Both groups improved in AMPS motor skill and the AMPS process skill score tended towards significant improvement in the IG, from A1–A3. After training (A3–A4), the CG improved in digit span and RBMT-II. Conclusion: The WM training seems to have a generalized effect on functional activity and lessens fatigue.

Can rehabilitation in the home setting reduce the burden of care for the next-of-kin of stroke victims?

BACKGROUND More evidence of the efficacy of caregiver interventions is needed. The aim of this study was to evaluate whether counselling in the home setting reduces the caregiver burden. METHODS Thirty-six patients after stroke, median age 53 years, with a close family member, were selected for an evaluation of the burden of care and 35 participated. They were part of a randomized controlled trial, comparing rehabilitation in the home setting with outpatient rehabilitation. In the home setting, counselling about the stroke and its consequences was included. Assessments with the Caregiver Burden scale were made at 3 weeks, 3 months and one year after discharge. RESULTS The burden of the 2 groups did not differ. After the intervention, there was a tendency to a lower burden for the home setting. The burden for the home setting was then unchanged from 3 weeks to 1 year, while outpatient rehabilitation showed a reduced burden over time. For the home setting, significant correlations to activity level were seen after the intervention. CONCLUSION A positive effect of counselling was seen, as the home setting burden tends to be lower after the intervention, while outpatient rehabilitation seems to adjust with time. The results suggest that counselling reduces burden and the remaining burden is associated with the patients ability.

FACTORS AFFECTING PARTICIPATION AFTER TRAUMATIC BRAIN INJURY

OBJECTIVE The aim of this work was to explore the extent to which social, cognitive, emotional and physical aspects influence participation after a traumatic brain injury (TBI). DESIGN/SUBJECTS An explorative study of the patient perspective of participation 4 years after TBI. The cohort consisted of all patients (age range 18-65 years), presenting in 1999-2000, admitted to the hospital (n = 129). Sixty-three patients responded; 46 males and 17 females, mean age 41 (range 19-60) years. METHODS Four years after the injury, the European Brain Injury Questionnaire (EBIQ), EuroQol-5D, Swedish Stroke Register Questionnaire and Impact on Participation and Autonomy (IPA) questionnaire were sent to the sample. Data were analysed with logistic regression. RESULTS On the EBIQ, 40% of the sample reported problems in most questions. According to IPA, between 20% and 40% did not perceive that they had a good participation. The analyses gave 5 predictors reflecting emotional and social aspects, which could explain up to 70% of the variation in participation. CONCLUSION It is not easy to find single predictors, as there seems to be a close interaction between several aspects. Motor deficits appear to have smaller significance for participation in this late state, while emotional and social factors play a major role.

Gothenburg very early supported discharge study (GOTVED) NCT01622205: a block randomized trial with superiority design of very early supported discharge for patients with stroke

BackgroundStroke is the disease with the highest costs for hospital care and also after discharge. Early supported discharge (ESD) has shown to be efficient and safe and the best results with well-organised discharge teams and patients with less severe strokes.The aim is to investigate if very early supported discharge (VESD) for stroke patients in need for on-going individualised rehabilitation at home is useful for the patient and cost effective.Methods/designA randomized controlled trial comparing VESD with ordinary discharge. Inclusion criteria: confirmed stroke, >18 years of age, living within 30 min from the stroke unit, on day 2 0–16 points on the National institute of health stroke scale (NIHSS) and 50–100 points on the Barthel Index (BI), with BI 100 then the patient can be included if the Montreal Cognitive Assessment is < 26. Exclusion criteria are: NIHSS >16, BI < 50, life expectancy < 1 year, inability to speak or to communicate in Swedish. The inclusion occurs on day 4 and in block randomization of 20 and with blinded assessor.Primary outcome: levels of anxiety and depression. Secondary outcomes: independence, security, level of function, quality of health, needs of support in activities of daily living and caregiver burden.Power calculation is based on the level of anxiety and with a power of 80%, p-value 0.05 (2 sided test) 44 persons per group are needed. Data is gathered on co-morbidity, re-entry to hospital, mortality and a health economic analysis. Interviews will be accomplished with a strategic sample of 15 patients in the intervention group before discharge, within two weeks after homecoming and 3 months later. Interviews are also planned with 15 relatives in the intervention group 3 months after discharge.DiscussionThe ESD studies in the Cochrane review present hospital stays of a length that no longer exist in Sweden. There is not yet, to our knowledge, any study of early supported discharge with present length of hospital stay. Thus it is not clear if home rehabilitation nowadays without risks, is cost effective, or with the same patient usefulness as earlier studies.Trial registrationClinicalTrials.gov NCT01622205

Sick leave after traumatic brain injury: The person or the diagnosis – which has greater impact?

Purpose: The aim of this study was to describe if and when a sample of traumatic brain injury (TBI) patients could finish their time of sick leave during a 4-year follow up and to explore which factors that influenced the time for sick leave. Materials and methods: All persons, 1999—2002, between 18 and 64 years of age (250 in total), admitted to the emergency room and diagnosed according to ICD 10 as S062 and S063, were included. Demographic data were gathered from medical charts and data concerning sick leave 1 year before trauma and 4 years after trauma, were collected from the Swedish social insurance system. To explore predictors of sick leave, two logistic regressions were performed. Results: The sample (mean age 39.68) consisted of 78% men. More than half of the accidents were due to fall. In the sample, 28 % was on sick leave on the day of trauma and 96 % of these were still on sick leave 4 years after trauma, compared with 39 % in the group not on sick leave on the day of TBI. Sick leave at the day for trauma was found to be a predictor for sick leave 4 years after trauma for the whole group (p = 0.000) together with Glasgow Coma Scale (GCS) (p = 0.002) and length of stay (p = 0.049). In the logistic regression with only the group not on sick leave, the only significant variable was GCS (p = 0.003). Conclusion: The findings support the necessity to consider premorbid and social factors in the TBI rehabilitation.

Process skill rather than motor skill seems to be a predictor of costs for rehabilitation after a stroke in working age : a longitudinal study with a 1 year follow up post discharge

BackgroundIn recent years a number of costs of stroke studies have been conducted based on incidence or prevalence and estimating costs at a given time. As there still is a need for a deeper understanding of factors influencing these costs the aim of this study was to calculate the direct and indirect costs in a younger (<65) sample of stroke patients and to explore factors affecting the costs.MethodsFifty-eight patients included in a study of home rehabilitation and followed for 1 year after discharge from the rehabilitation unit, were interviewed about their use of health care services, assistance, medications and assistive devices. Costs (defined as the cost for society) were calculated. A linear regression of cost and variables of functioning, ability, community integration and health-related quality of life was done.ResultsInpatient care contributed substantially to the direct cost with a mean length of stay of 92 days. Rehabilitation during the first year constituted of an average of 28 days in day clinics, 38 physiotherapy sessions and 20 occupational therapy sessions. The total direct mean cost was 80 020 € and the indirect cost 35 129 €. The direct costs were influenced by the process skill (the ability to plan and perform a given task and to adapt when needed) and presence of aphasia. Indirect costs for informal care giving increased for patients with a lower health-related quality of life as well as a low score on home integration.ConclusionCosts are high in this group of young (< 65 years) stroke patients compared to other studies, partly due to the length of the stay and partly to loss of productivity.