| 1. |
- Gunnarsson, Stina, 1980-
(författare)
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What makes a patient satisfied with intrathecal baclofen treatment for spasticity : Expectations and experiences
- 2022
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Patients often report reduced spasticity and/or pain, improved function and comfort, and a high level of satisfaction after treatment with intrathecal baclofen (ITB). However, dissatisfaction, complications and unmet goals are also reported. The overall aim of the thesis was to identify, describe, and analyse what makes a patient satisfied with the effect of ITB treatment for spasticity, by considering patient expectations, experience, outcome, as well as satisfaction with treatment. Four studies are included, all focusing on patients undergoing ITB treatment or about to start treatment. Study I, a qualitative interview study, describes the experiences of 14 patients on ITB from one university hospital. Study II, a cross-sectional study, includes 6 of the 7 main hospitals in Sweden working with ITB treatment. Through questionnaires and medical records, data were collected from 83 patients, on general expectations/optimism, satisfaction with treatment and reports on complications. Study III is based on data from study II on baclofen doses for 81 patients to analyse the development of dose patterns. Study IV, a prospective longitudinal study, includes 29 patients from 2 university hospitals. Data collection focused on pre-expectations, effect at 1-year follow-up and satisfaction with treatment. The results of the thesis are summarized in 3 topics: (1) variables of interest for formulation of patients’ pre-expectations; (2) pre-expectations of outcome and ongoing ITB treatment; (3) outcomes and satisfaction with ITB treatment. Together, those topics describe what makes a patient satisfied with ITB treatment. Patients reported improvements in symptoms and reduced consequences from spasticity, however improvements were not always as good as expected. Reported satisfaction with ITB treatment varied in the 4 studies, but mostly a high level of satisfaction was reported. Variables of importance for satisfaction were improved occupational performance, pre-expectations met and initial status regarding occupational performance. In conclusion, results from this thesis emphasize the need for a dialogue between the patient and health care professionals to enable the formulation of realistic individual pre-expectations and goals. In addition, unmet pre-expectations, complications and frequent hospital visits should be included in the discussion about the benefits of ITB treatment versus the disadvantages.
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| 2. |
- Dragioti, Elena, et al.
(författare)
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Longitudinal Associations between Anatomical Regions of Pain and Work Conditions: A Study from The SwePain Cohort
- 2019
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Ingår i: International Journal of Environmental Research and Public Health. - : MDPI. - 1661-7827 .- 1660-4601. ; 16:12
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Tidskriftsartikel (refereegranskat)abstract
- We investigated the time-based associations between workload (physical and mechanical), psychosocial work stressors (demands, control, and support), and the number of anatomical regions with pain (ARP). This population-based study with a two-year follow-up included 11,386 responders (5125 men, 6261 women; mean age: 48.8 years; SD: 18.5) living in south-eastern Sweden. Predictive associations were assessed through generalised linear models, and changes over time were examined using a generalised estimating equation. The results of both models were reported as parameter estimates (B) with 95% confidence interval (CIs). Mean changes in the number of ARP, workload, and psychosocial work stressors were stable over time. High mechanical workload and job demands were likely associated with the number of ARP at the two-year follow-up. In the reverse prospective model, we found that the number of ARP was also associated with high physical and mechanical workload and low job control and support. In the two time-based models of changes, we found a reciprocal association between number of ARP and mechanical workload. Our results add epidemiological evidence to the associations between work conditions and the extent of pain on the body. Components of work conditions, including job demands and mechanical strain, must be considered when organisations and health policy makers plan and employ ergonomic evaluations to minimise workplace hazards in the general population.
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| 3. |
- Gerdle, Björn, 1953-, et al.
(författare)
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Muscle
- 2018
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Ingår i: Fibromyalgia syndrome and widespread pain. - : Wolters Kluwer. - 9781975102852 ; , s. 215-231
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Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 4. |
- Grooten, Wilhelmus Johannes Andreas, et al.
(författare)
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Elaborating on the assessment of the risk of bias in prognostic studies in pain rehabilitation using QUIPS-aspects of interrater agreement
- 2019
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Ingår i: Diagnostic and Prognostic Research. - : Springer Science and Business Media LLC. - 2397-7523. ; 3
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Tidskriftsartikel (refereegranskat)abstract
- Background: Many studies have been performed to identify important prognostic factors for outcomes after rehabilitation of patients with chronic pain, and there is a need to synthesize them through systematic review. In this process, it is important to assess the study quality and risk of bias. The "Quality In Prognosis Studies" (QUIPS) tool has been developed for this purpose and consists of several prompting items categorized into six domains, and each domain is judged on a three-grade scale (low, moderate or high risk of bias). The aim of the present study was to determine the interrater agreement of the risk of bias assessment in prognostic studies of patients with chronic pain using QUIPS and to elaborate on the use of this instrument.Methods: We performed a systematic review and a meta-analysis of prognostic factors for long-term outcomes after multidisciplinary rehabilitation in patients with chronic pain. Two researchers rated the risk of bias in 43 published papers in two rounds (15 and 28 papers, respectively). The interrater agreement and Cohen's quadratic weighted kappa coefficient (κ) and 95% confidence interval (95%CI) were calculated in all domains and separately for the first and second rounds.Results: The raters agreed in 61% of the domains (157 out of 258), with similar interrater agreement in the first (59%, 53/90) and second rounds (62%, 104/168). The overall weighted kappa coefficient (kappa for all domains and all papers) was weak: κ = 0.475 (95%CI = 0.358-0.601). A "minimal agreement" between the raters was found in the first round, κ = 0.323 (95%CI = 0.129-0.517), but increased to "weak agreement" in the second round, κ = 0.536 (95%CI = 0.390-0.682).Conclusion: Despite a relatively low interrater agreement, QUIPS proved to be a useful tool in assessing the risk of bias when performing a meta-analysis of prognostic studies in pain rehabilitation, since it demands of raters to discuss and investigate important aspects of study quality. Some items were particularly hard to differentiate in-between, and a learning phase was required to increase the interrater agreement. This paper highlights several aspects of the tool that should be kept in mind when rating the risk of bias in prognostic studies, and provides some suggestions on common pitfalls to avoid during this process.Trial registration: PROSPERO CRD42016025339; registered 05 February 2016.
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| 5. |
- Grundström, Hanna, 1982-, et al.
(författare)
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Pain catastrophizing is associated with pain thresholds for heat, cold and pressure in women with chronic pelvic pain
- 2020
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Ingår i: Scandinavian Journal of Pain. - : WALTER DE GRUYTER GMBH. - 1877-8860 .- 1877-8879. ; 20:3, s. 635-646
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Tidskriftsartikel (refereegranskat)abstract
- Background and aims: Psychological traits such as pain catastrophizing may play a role in the development of chronic pelvic pain (CPP). Pain catastrophizing is the tendency to amplify negative cognitive and emotional pain processes. The Pain Catastrophizing Scale (PCS) assesses elements of pain catastrophizing divided into three subgroups of factors (rumination, helplessness and magnification). Previous studies have shown associations between CPP and increased pain sensitivity, widespread generalized hyperalgesia, and decreased pain thresholds, but the relation between pain catastrophizing and specific pain thresholds has not yet been widely examined in this patient group. The aims of this study were (a) to determine if catastrophizing is increased in women with CPP compared with pain-free women, (b) to assess the importance of pain catastrophizing, psychological distress variables, and subjective pain sensitivity for pain thresholds of heat, cold and pressure in these two groups, and (c) to determine whether psychological variables or pain thresholds best contribute to the differentiation between CPP and controls. Methods: Thirty-seven women with chronic pelvic pain who underwent diagnostic laparoscopy on the suspicion of endometriosis participated along with 55 healthy and pain-free controls. All underwent quantitative sensory testing on six locations on the body to determine heat (HPT), cold (CPT) and pressure (PPT) pain thresholds. The PCS, the Pain Sensitivity Questionnaire (PSQ), the Hospital Anxiety Depression Scale, (HAUS) demographics and clinical data were collected prospectively. Principal component analysis and orthogonal partial least square regressions were used to assess the associations between PCS scores and pain thresholds. Results: The women with CPP scored significantly higher on PCS than the healthy controls. PCS-helplessness, PCS-rumination and HADS-depression were significantly associated with pain thresholds for the whole group. In the CPP group, PCS-rumination, body mass index and PSQ were significant regressors for HPT and CPT. The PCS and the HADS subscales were strongly intercorrelated in women with CPP and were stronger regressors of group membership than the three pain thresholds. In the group of healthy control women, no relationships were found to be significant. The psychological variables were somewhat stronger significant regressors than pain thresholds (also significant) for group membership. Conclusions: Women with CPP have significantly higher pain catastrophizing scores than women without CPP. The pain catastrophizing rumination factor is significantly associated with pain thresholds of heat and cold in CPP women. PCS and HADS are strongly intercorrelated and PSQ correlates positively with these variables. It seems that the psychological variables are important for group differentiation.
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| 6. |
- Grundström, Hanna, 1982-, et al.
(författare)
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Reduced pain thresholds and signs of sensitization in women with persistent pelvic pain and suspected endometriosis
- 2019
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Ingår i: Acta Obstetricia et Gynecologica Scandinavica. - : John Wiley & Sons. - 0001-6349 .- 1600-0412. ; 98:3, s. 327-336
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Tidskriftsartikel (refereegranskat)abstract
- INTRODUCTION: Endometriosis is a gynecological disorder that may cause considerable pelvic pain in women of fertile age. Determining pain mechanisms is necessary in order to optimize the treatment of the disease. The objective of the study was to evaluate pain thresholds in women with persistent pelvic pain with and without confirmed endometriosis, and healthy, unaffected controls, and analyze how pain thresholds in these cohorts related to duration of pelvic pain, quality of life, and symptoms of anxiety and depression.MATERIAL AND METHODS: Pain thresholds for heat, cold and pressure were assessed with quantitative sensory testing on six locations on a reference group of 55 healthy women and on 37 women with persistent pelvic pain who had been admitted for diagnostic laparoscopy on the suspicion of endometriosis. Validated instruments were applied to assess quality of life and symptoms of anxiety and depression. Data were analyzed by means of uni- and multivariate analysis of variance and Spearman's rank-order correlation.RESULTS: The women with persistent pelvic pain had significantly lower pain thresholds compared with the reference women. In the women with pain, no differences were observed in pain thresholds between women with (n = 13) and women without (n = 24) biopsy-proven endometriosis. The duration of pelvic pain correlated significantly positively with reduced pain thresholds, ie, the longer the duration, the more sensitization. In the persistent pelvic pain group, pain thresholds for heat correlated significantly with the Short Form Health Survey 36 dimension of bodily pain, and thresholds for cold correlated with Short Form Health Survey 36 bodily pain and with symptoms of depression.CONCLUSIONS: Our results showed widespread alterations in pain thresholds in women with persistent pelvic pain that are indicative of central sensitization and a time-dependent correlation. Women with pelvic pain and suspicion of endometriosis should probably be treated more thoroughly to prevent or at least minimize the concomitant development of central sensitization.
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| 7. |
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| 8. |
- Karlsson, Linn, 1974-
(författare)
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Chronic Pain and Exercise : Studies on pain intensity, biochemistry, adherence and attitudes
- 2017
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Chronic pain is common in western countries and entails considerable consequences for the afflicted individuals as well as for the society. Furthermore, chronic pain is complex including an advanced interplay between biological-, psychological- and social aspects. Treatment of chronic pain attempts to decrease pain intensity and increase physical-, psychological- and social functioning. However, the treatment of chronic pain is still not optimized. Different types of physical activity and exercise (PA&E) are commonly applied as non-pharmacological treatment strategies for chronic pain, but the most efficient type and dose of PA&E are unclear. In addition, adherence to prescribed PA&E is often troublesome, which further complicates the application of PA&E as treatment for chronic pain.The aim of this thesis is to increase the knowledge about PA&E as treatment for chronic pain regarding pain intensity, biochemical substances, adherence and attitudes.The findings of this thesis were that a long-term, home-based PA&E intervention comprising strength exercises as well as stretch exercises decreased pain intensity and increased function in women with chronic neck- and shoulder pain. Using microdialysis technique, differences in pain modulatory biochemical substances were found, before the intervention, in painful trapezius muscle compared to pain-free trapezius muscle. In addition, alterations in pain modulatory substances in painful trapezius muscle after the intervention were found, which possibly could imply peripheral physiological effects of PA&E. Furthermore, psychological factors could be associated to the effects of and adherence to the PA&E intervention. An intention to be physically active were expressed by patients with chronic pain, but a discordance between the intention and PA&E-behaviour were evident, even though the PA&E were experienced as valuable.In conclusion, this thesis strengthens the importance of PA&E as treatment for chronic pain. Especially, this thesis increases the knowledge about; possible peripheral pain inhibitory effects after long-term exercise; how psychological factors might affect the results of PA&E; and also about important behavioural aspects that might affect adherence to prescribed PA&E. This thesis highlights the need of more research on physiological pain inhibitory effects of long-term PA&E in chronic pain. Furthermore, improved methods for ensured adherence to prescribed PA&E are necessary in order to optimize the effect of PA&E as treatment for chronic pain.
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| 9. |
- Larsson, Britt, 1953-, et al.
(författare)
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Predictors of chronic pain intensity, spread and sensitivity in the general population: A two-year follow-up study from the swepain cohort
- 2019
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Ingår i: Journal of Rehabilitation Medicine. - Uppsala, Sweden : Medical Journals Sweden AB. - 1650-1977 .- 1651-2081. ; 51:3, s. 183-192
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Tidskriftsartikel (refereegranskat)abstract
- © 2019 Foundation of Rehabilitation Information. Objective: To determine whether the intensity, spread and sensitivity of chronic pain can be predicted using demographic features, socioeconomic conditions and comorbidities. Design: A longitudinal study design was employed. Data was collected at baseline and at 2-year followup. Setting: General population in south-eastern Sweden. Subjects: A representative stratified random sample of 34,000 individuals, between 18 and 85 years of age, selected from a sampling frame of 404,661 individuals based on the Swedish Total Population Register. Methods: Eligible individuals were sent postal surveys in 2013 and 2015. The 2 surveys included the same questions about basic demographic data, comorbidities, and chronic pain intensity, spread and sensitivity. Results: Several socio-demographic features and comorbidities at baseline were significant predictors of characteristics of pain (intensity, spread and sensitivity) at the 2-year follow-up. When characteristics of pain at baseline were included in the regression analyses they were relatively strong significant predictors of characteristics of pain after 2 years. After this adjustment there were fewer socio-demographic and comorbidity predictors; the effect estimates for those significant predictors had decreased. Conclusion: Clinical assessment should focus on several characteristics of pain and include a broad medical screening to capture the overall burden of pain in adults from a longitudinal perspective.
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| 10. |
- Larsson, Barbro, 1952-, et al.
(författare)
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Surface electromyography and peak torque of repetitive maximum isokinetic plantar flexions in relation to aspects of muscle morphology
- 2006
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Ingår i: Journal of Electromyography & Kinesiology. - : Elsevier BV. - 1050-6411 .- 1873-5711. ; 16:3, s. 281-290
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Tidskriftsartikel (refereegranskat)abstract
- This study investigates the relationships between surface electromyography (EMG [Mean frequency of the power spectrum (MNF)]) and peak torque variables obtained during 100 maximum concentric plantar flexions with the right limb at 60 degrees s(-1) and different muscle morphological variables. Surface EMG was recorded from the right gastrocnemius lateralis and muscle biopsies were taken from the same site as the EMG electrodes were positioned. Muscle fibre area and fibre type composition were determined on serial muscle cross sections using both histochemistry (myofibrillar adenosine triphosphatase) and immunohistochemistry (monoclonal antibodies against specific myosin heavy chain isoforms). Forty-three female and nine male students participated in the study. Gastrocnemius lateralis contained predominantly type I fibres (50%) and type IIA fibres (40%) in both sexes and large individual differences were found. Principal component analysis (PCA) was used for the intercorrelation analyses, and projection to latent structures (PLS) was used for the multivariate regression analysis. MNF correlated positively with different fibre areas and with the proportion of type I fibres. Fibre areas and sex were the most important factors in the regression of maximum peak torque. High proportion of type I fibres and sex were the most important regressors of peak torque endurance normalised for lean body mass. More studies are needed to understand the complex interrelationships between intrinsic muscle properties and the frequency content of the surface EMG before theoretical models can be formulated that incorporate both fibre areas and fibre type proportions.
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