| 31. |
- Bolejko, Anetta, et al.
(författare)
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Psychometric properties of a Swedish version of the Consequences of Screening : Breast Cancer questionnaire
- 2014
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Ingår i: Journal of Advanced Nursing. - : John Wiley & Sons. - 0309-2402 .- 1365-2648. ; 70:10, s. 2373-2388
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Tidskriftsartikel (refereegranskat)abstract
- AIM: To evaluate the psychometric properties of a questionnaire addressing psychosocial consequences of false-positive mammographic screening. BACKGROUND: The Consequences of Screening--Breast Cancer and Lung Cancer questionnaires target psychosocial consequences of false-positive cancer screening. The Consequences of Screening--Breast Cancer questionnaire and ten items not considered lung cancer specific from the Lung Cancer questionnaire have been adapted for use in mammographic screening in Sweden, but remain psychometrically untested. DESIGN: Instrument development paper with psychometric cross-sectional and test-retest design. METHODS: Twelve scales of a Swedish questionnaire version were tested by the Rasch model and traditional psychometric methods. Women with false-positive (Group I, n = 640) and negative (Group II, n = 802) screening mammography responded to the study questionnaire and the Nottingham Health Profile during 2009-2011. RESULTS: Iterative analyses resulted in nine scales demonstrating Rasch model fit, but all scales exhibited poor targeting with relatively large floor effects. Corrected item-total correlations exceeded the recommended criterion. Score differences between Groups I and II and correlations with Nottingham Health Profile sections followed an expected pattern. Cronbach's α and test-retest reliability was acceptable for group-level assessments for ten and seven scales, respectively. CONCLUSIONS: Five scales (Sense of dejection, Anxiety, Behavioural, Sleep and Existential values) of the Swedish questionnaire version demonstrated the best psychometric properties. Other scales should be used more cautiously. Although filling an important gap, causes of concern were identified across scales. The questionnaire should therefore be considered for group-level assessments rather than for measurement of individual degrees of psychosocial consequences.
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| 32. |
- Brundin, Patrik, et al.
(författare)
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Bilateral caudate and putamen grafts of embryonic mesencephalic tissue treated with lazaroids in Parkinson's disease
- 2000
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Ingår i: Brain. - 1460-2156. ; 123, s. 1380-1390
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Tidskriftsartikel (refereegranskat)abstract
- Five parkinsonian patients were transplanted bilaterally into the putamen and caudate nucleus with human embryonic mesencephalic tissue from between seven and nine donors. To increase graft survival, the lipid peroxidation inhibitor tirilazad mesylate was administered to the tissue before implantation and intravenously to the patients for 3 days thereafter. During the second postoperative year, the mean daily L-dopa dose was reduced by 54% and the UPDRS (Unified Parkinson's Disease Rating Scale) motor score in 'off' phase was reduced by a mean of 40%. At 10-23 months after grafting, PET showed a mean 61% increase of 6-L-[(18)F]fluorodopa uptake in the putamen, and 24% increase in the caudate nucleus, compared with preoperative values. No obvious differences in the pattern of motor recovery were observed between these and other previously studied cases with putamen grafts alone. The amount of mesencephalic tissue implanted in each putamen and caudate nucleus was 42 and 50% lower, respectively, compared with previously transplanted patients from our centre. Despite this reduction in grafted tissue, the magnitudes of symptomatic relief and graft survival were very similar. These findings suggest that tirilazad mesylate may improve survival of grafted dopamine neurons in patients, which is in agreement with observations in experimental animals.
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| 33. |
- Brundin, Patrik, et al.
(författare)
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The neurobiology of cell transplantation in Parkinson's disease
- 2001
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Ingår i: Clinical Neuroscience Research. - 1873-779X. ; 1:6, s. 507-520
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Tidskriftsartikel (refereegranskat)abstract
- Over the past decade, neural grafting has emerged as a new treatment option for Parkinson's disease. When performed successfully, grafts of human embryonic neural tissue can give rise to major symptomatic relief in patients, However, a recent report on a double-blind placebo control study, which received worldwide attention, described less pronounced beneficial effects of the grafts, and found them to be significant only in patients younger than 60 years of age. Moreover, a subgroup of patients developed disabling dyskinesias as a result of the surgery. These findings, and great logistical problems in coordinating the harvesting of sufficient amounts of suitable human embryonic donor tissue with the transplantation surgery, have led the scientific community to question whether cell transplantation really has a future as a therapy for Parkinson's disease. In this review, we argue that the future of neural transplantation for Parkinson's disease is still bright. We relate clinical findings to observations made in experimental animals grafted with embryonic neural tissue and seek explanations for the variability in outcome seen in the clinical trials. We also briefly discuss alternative sources of donor tissue that may be applied in future clinical trials, and mention what features of cells may be crucial for them to be suitable as donor tissue for transplantation in Parkinson's disease.
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| 34. |
- Carina, Hellqvist, et al.
(författare)
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A national Swedish self- management program for people with Parkinson’s disease : patients and relatives view
- 2017
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Ingår i: Movement Disorders. ; , s. 175-176
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Konferensbidrag (refereegranskat)abstract
- Objective: To identify and describe experiences that people with PD and their relatives after participation inthe self-management intervention NPS (National Parkinson School) find valuable for managing daily life.Background: A self-management program called NPS was developed as a collaboration of healthcare providers, researchers and patient organizations. NPS is aiming to provide tools and strategies for people with PD and their relatives to increase ability to manage symptoms and consequences of disease and thereby improving conditions for a good life. Self-monitoring and self-management are central concepts. NPS focuses on life with PD, which via 7 sessions consisting of education/lectures and group discussions are mediated. Home assignments make participants practice the new skills in their own life.Methods: The last session, evaluation of the NPS, was audio recorded in its whole and transcribed verbatim. Data was collected from five separate clinics and analysed both inductively and deductively using Thematic Analysis and by applying the Self-and Family management theory.Results: Through inductive analysis three themes; Exchanging experiences and feeling support, Adjustment and acceptance of PD for managing daily life and Promoting life satisfaction, were identified and described. The themes are capturing the meaning, value and experience of being a participant of NPS. Deductive analysis indicated thatthe Self-and Family management theory was useful and valid for this group of patients and generated a modified framework applicable for patients with PD and their families [figure1].Conclusions: Living with PD affects patients as well as relatives. Meeting others in the same situation gives support and strengthen their self- image. Having the opportunity sharing experiences and practical advices showed that there was a hopeful future to come. Techniques to accept and manage life with PD included seeking information about disease and treatments, self-monitoring in order to adjust to new situations and improve symptoms of disease and having a positive mind-set. Living an active life, participating in enjoyable social, cultural, and physical activities were important to feel happy and satisfied with life. Participation in NPS covered many areas of importance for the ability of self-management in PD. The framework for self-management in chronic disease was found relevant also for the PD population
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| 35. |
- Carina, Hellqvist, et al.
(författare)
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A national Swedish self- management program for people with Parkinson’s disease : patients and relatives view
- 2017
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Objective: To identify and describe experiences that people with PD and their relatives after participation inthe self-management intervention NPS (National Parkinson School) find valuable for managing daily life. Background: A self-management program called NPS was developed as a collaboration of healthcare providers, researchers and patient organizations. NPS is aiming to provide tools and strategies for people with PD and their relatives to increase ability to manage symptoms and consequences of disease and thereby improving conditions for a good life. Self-monitoring and self-management are central concepts. NPS focuses on life with PD, which via 7 sessions consisting of education/lectures and group discussions are mediated. Home assignments make participants practice the new skills in their own life. Methods: The last session, evaluation of the NPS, was audio recorded in its whole and transcribed verbatim. Data was collected from five separate clinics and analysed both inductively and deductively usingThematic Analysis and by applying the Self-and Family management theory. Results: Through inductive analysis three themes; Exchanging experiences and feeling support, Adjustment and acceptance of PD for managing daily life and Promoting life satisfaction, were identified and described. The themes are capturing the meaning, value and experience of being a participant of NPS. Deductive analysis indicated thatthe Self-and Family management theory was useful and valid for this group of patients and generated a modified framework applicable for patients with PD and their families [figure1]. Conclusions: Living with PD affects patients as well as relatives. Meeting others in the same situation gives support and strengthen their self- image. Having the opportunity sharing experiences and practical advices showed that there was a hopeful future to come. Techniques to accept and manage life with PD included seeking information about disease and treatments, self-monitoring in order to adjust to new situations and improve symptoms of disease and having a positive mind-set. Living an active life, participating in enjoyable social, cultural, and physical activities were important to feel happy and satisfied with life. Participation in NPS covered many areas of importance for the ability of self-management in PD. The framework for self-management in chronic disease was found relevant also for the PD population
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| 36. |
- Cenci Nilsson, Angela, et al.
(författare)
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Dyskinesias and neural grafting in Parkinson's disease
- 2006
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Ingår i: Restorative Therapies in Parkinson's Disease. - : Springer US. - 9780387299846 - 9780387328232 ; , s. 184-224
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Bokkapitel (populärvet., debatt m.m.)abstract
- In the past 20 years, intracerebral transplantation of embryonic ventral mesencephalic (VM) tissue has been looked upon as a particularly promising approach for the treatment of Parkinson's disease (PD). Among the many possible treatment options for the future, transplantation bore the promise of a truly curative approach: endogeneous, degenerating dopamine (DA) neurons would be substituted for by healthy DA-producing cells, restoring the damaged nigrostriatal circuit once and for all (Nikkhah and Brandis, 1995; Barker, 2000; Fricker-Gates et al., 2001). Hopes were fostered by the encouraging results produced by intrastriatal VM transplants both in animal models of PD (Bj?rklund, 1992; Bj?rklund and Stenevi, 1979; Herman and Abrous, 1994; Perlow et al., 1979) and in early openlabel clinical trials (Lindvall, 1994; Lindvall and Hagell, 2000 and Chapter 5). The latter showed that embryonic VM tissue can engraft in the parkinsonian striatum and provide a local source of DA storage and release. In a majority of transplanted patients the grafts were found to ameliorate many of the symptoms of PD and to reduce the need for L-DOPA pharmacotherapy (Lindvall and Hagell, 2000). In addition to their immediate implications for PD, these results also suggested that neural cell replacement could develop into a radically new treatment approach for a wide range of neurological disorders (Gage et al., 1988; Lindvall and Bj?rklund, 1992; Aichner et al., 2002; Turner and Shetty, 2003; Grisolia, 2002; Peschansky and Dunnett, 2002; Studer et al., 1998). This early enthusiasm was dampened by alarming reports from the first NIH-sponsored clinical trial of neural transplantation, where a subgroup of patients had manifested a severe and persistent form of dyskinesia at late postoperative periods (Freed et al., 2001; Greene et al., 1999; Kolata, 2001 and Chapter 6). Other reports were soon to follow indicating that dyskinesias indeed can develop as a complication of intrastriatal VM grafting (Hagell et al., 2002; Ma et al., 2002; Olanow et al., 2003). These dyskinesias are a puzzling phenomenon that had not been foreseen by experimental studies of VM transplantation in animal models. This phenomenon does not presently lend itself to any simple explanation. In fact, current pathophysiological models are inadequate to explain the emergence of dyskinesia after interventions that can provide a source of continuous DA release in the striatum. Yet, understanding this issue appears essential in order to be able to plan further application of cell-replacement therapy in PD. In this chapter, we shall first provide a general review of the clinical spectrum and pathophysiology of the dyskinesias that complicate the treatment of PD. We shall then discuss the effects of VM grafts on L-DOPA-induced dyskinesias that are present prior to transplantation surgery. Thereafter, we will specifically address the issue of graft-induced dyskinesia, viz., an apparently novel clinical entity that is caused by the intrastriatal grafts themselves. Finally, we shall provide a speculative review of possible mechanisms underlying the development of dyskinesia following intrastriatal VM transplantation.
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| 37. |
- de Roos, Paul, et al.
(författare)
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A Consensus Set of Outcomes for Parkinson's Disease from the International Consortium for Health Outcomes Measurement
- 2017
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Ingår i: Journal of Parkinson's Disease. - : IOS Press. - 1877-7171 .- 1877-718X. ; 7:3, s. 533-543
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Parkinson's disease (PD) is a progressive neurodegenerative condition that is expected to double in prevalence due to demographic shifts. Value-based healthcare is a proposed strategy to improve outcomes and decrease costs. To move towards an actual value-based health care system, condition-specific outcomes that are meaningful to patients are essential.OBJECTIVE: Propose a global consensus standard set of outcome measures for PD.METHODS: Established methods for outcome measure development were applied, as outlined and used previously by the International Consortium for Health Outcomes Measurement (ICHOM). An international group, representing both patients and experts from the fields of neurology, psychiatry, nursing, and existing outcome measurement efforts, was convened. The group participated in six teleconferences over a six-month period, reviewed existing data and practices, and ultimately proposed a standard set of measures by which patients should be tracked, and how often data should be collected.RESULTS: The standard set applies to all cases of idiopathic PD, and includes assessments of motor and non-motor symptoms, ability to work, PD-related health status, and hospital admissions. Baseline demographic and clinical variables are included to enable case mix adjustment.CONCLUSIONS: The Standard Set is now ready for use and pilot testing in the clinical setting. Ultimately, we believe that using the set of outcomes proposed here will allow clinicians and scientists across the world to document, report, and compare PD-related outcomes in a standardized fashion. Such international benchmarks will improve our understanding of the disease course and allow for identification of 'best practices', ultimately leading to better informed treatment decisions.
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| 38. |
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| 39. |
- Doward, Lynda C., et al.
(författare)
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International Development of the Unidimensional Fatigue Impact Scale (U-FIS)
- 2010
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Ingår i: Value in Health. - : Elsevier BV. - 1098-3015. ; 13:4, s. 463-468
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Tidskriftsartikel (refereegranskat)abstract
- Objective: The 22-item Unidimensional Fatigue Impact Scale (U-FIS) provides an index of the impact of fatigue on patients with multiple sclerosis (MS). The objective is to produce eight new language versions of the U-FIS: Canadian-English, Canadian-French, French, German, Italian, Spanish, Swedish, and US-English. Methods: The U-FIS was translated via two translation panels. Cognitive debriefing interviews conducted with patients in each country assessed face and content validity. Scaling and psychometric properties were assessed via survey data with patients in each country completing the U-FIS, Nottingham Health Profile (NHP), and demographic questions. Results: Cognitive debriefing interviews demonstrated U-FIS acceptability. Analysis of postal survey data showed all new language versions to be unidimensional. Reliability was high, with test-retest correlations and internal-consistency coefficients exceeding 0.85. Initial evidence of validity was provided by moderate to high correlations with NHP scales. The U-FIS was able to discriminate between groups based on employment status, perceived MS severity, and general health. Conclusion: The U-FIS is a practical new measure of the impact of fatigue. It was successfully adapted into eight new languages to broaden availability for researchers. Psychometric analyses indicated that the new language versions were unidimensional and reproducible with promising construct validity.
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| 40. |
- Eklund, Mona, et al.
(författare)
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Psychometric properties of a Swedish version of the Pearlin Mastery Scale in people with mental illness and healthy people
- 2012
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Ingår i: Nordic Journal of Psychiatry. - Abingdon : Taylor & Francis. - 0803-9488 .- 1502-4725. ; 66:6, s. 380-388
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Tidskriftsartikel (refereegranskat)abstract
- Background: Mastery refers to the degree to which people perceive that they can control factors that influence their life situation, and has been found important for people's quality of life and well-being. It is thus essential to be able to measure mastery in a valid and reliable way. Aim: This study aimed at using the Rasch measurement model to investigate the psychometric properties of a Swedish version of the Pearlin Mastery Scale (Mastery-S). Methods: A sample of 300 healthy individuals and 278 persons with mental illness responded to the Mastery-S. Item responses were Rasch analysed regarding model fit, response category functioning, differential item functioning (DIF) and targeting, using the partial credit model. Results: The Mastery-S items represented a logical continuum of the measured construct but one item displayed misfit. Reliability (Person Separation Index) was 0.7. The response categories did not work as expected in three items, which could be corrected for by collapsing categories. Three items displayed DIF between the two subsamples, which caused a bias when comparing mastery levels between subsamples, suggesting the Mastery-S is not truly generic. Conclusions: The Mastery-S may be used to obtain valid and reliable data, but some precautions should be made. If used to compare groups, new analyses of DIF should first be made. Users of the scale should also consider exempting item 6 from the scale and analyse it as a separate item. Finally, rewording of response categories should be considered in order to make them more distinct and thereby improve score reliability.
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