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Bi Z, Gao H, Lin J, Gui M, Li Y, Li Z, Bu B. Predictive Factors for Poor Outcomes Associated with COVID-19 in a Retrospective Cohort of Myasthenia Gravis Patients. J Inflamm Res 2024; 17:5807-5820. [PMID: 39224657 PMCID: PMC11368097 DOI: 10.2147/jir.s475729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Accepted: 08/19/2024] [Indexed: 09/04/2024] Open
Abstract
Purpose To investigate the predictors for poor outcomes (including disease exacerbation, hospitalization and myasthenic crisis) in patients with pre-existing myasthenia gravis (MG) following Coronavirus disease 2019 (COVID-19), and to explore the potential effects of COVID-19 on inflammatory and immune responses in MG patients. Patients and Methods This retrospective cohort study analyzed medical records of 845 MG patients who were diagnosed with COVID-19 between January 2020 to March 2023 at a single medical center. Results Generalized MG at onset and comorbidities (chronic kidney disease and malignancy) were independent risk factors of poor outcomes. Patients achieving minimal manifestation or better status before COVID-19 had a significantly reduced risk for poor outcomes. Furthermore, patients with older onset age or anti-acetylcholine receptor antibody had a higher risk of exacerbation and hospitalization than those without. Prednisone or immunosuppressant treatment had the potential to reduce the occurrence of poor outcomes, while the duration of prednisone or immunosuppressant usage was associated with a higher risk of poor outcomes. Of the 376 MG patients with blood results available, patients with COVID-19 tended to have higher levels of leukocyte counts, neutrophil-lymphocyte-ratio, hypersensitive C-reactive protein, and Interleukin-6, as well as lower percentages of lymphocytes and regulatory T cells compared to patients without COVID-19. Conclusion Disease severity at onset, comorbidities, and unsatisfactory control of myasthenic symptoms predicted the occurrence of poor outcomes in MG patients following COVID-19. The risk of poor outcomes was reduced in patients controlled by short-term immunosuppressive therapy. Novel coronavirus might affect inflammatory and immune responses in MG patients, particularly in altering interleukin-6 and regulatory T cell levels.
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Affiliation(s)
- Zhuajin Bi
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, People’s Republic of China
- Hubei Key Laboratory of Neural Injury and Functional Reconstruction, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Huajie Gao
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, People’s Republic of China
- Hubei Key Laboratory of Neural Injury and Functional Reconstruction, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Jing Lin
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, People’s Republic of China
- Hubei Key Laboratory of Neural Injury and Functional Reconstruction, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Mengcui Gui
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, People’s Republic of China
- Hubei Key Laboratory of Neural Injury and Functional Reconstruction, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Yue Li
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, People’s Republic of China
- Hubei Key Laboratory of Neural Injury and Functional Reconstruction, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Zhijun Li
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, People’s Republic of China
- Hubei Key Laboratory of Neural Injury and Functional Reconstruction, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Bitao Bu
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, People’s Republic of China
- Hubei Key Laboratory of Neural Injury and Functional Reconstruction, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
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Abstract
BACKGROUND The function of the thymus in human adults is unclear, and routine removal of the thymus is performed in a variety of surgical procedures. We hypothesized that the adult thymus is needed to sustain immune competence and overall health. METHODS We evaluated the risk of death, cancer, and autoimmune disease among adult patients who had undergone thymectomy as compared with demographically matched controls who had undergone similar cardiothoracic surgery without thymectomy. T-cell production and plasma cytokine levels were also compared in a subgroup of patients. RESULTS After exclusions, 1420 patients who had undergone thymectomy and 6021 controls were included in the study; 1146 of the patients who had undergone thymectomy had a matched control and were included in the primary cohort. At 5 years after surgery, all-cause mortality was higher in the thymectomy group than in the control group (8.1% vs. 2.8%; relative risk, 2.9; 95% confidence interval [CI], 1.7 to 4.8), as was the risk of cancer (7.4% vs. 3.7%; relative risk, 2.0; 95% CI, 1.3 to 3.2). Although the risk of autoimmune disease did not differ substantially between the groups in the overall primary cohort (relative risk, 1.1; 95% CI, 0.8 to 1.4), a difference was found when patients with preoperative infection, cancer, or autoimmune disease were excluded from the analysis (12.3% vs. 7.9%; relative risk, 1.5; 95% CI, 1.02 to 2.2). In an analysis involving all patients with more than 5 years of follow-up (with or without a matched control), all-cause mortality was higher in the thymectomy group than in the general U.S. population (9.0% vs. 5.2%), as was mortality due to cancer (2.3% vs. 1.5%). In the subgroup of patients in whom T-cell production and plasma cytokine levels were measured (22 in the thymectomy group and 19 in the control group; mean follow-up, 14.2 postoperative years), those who had undergone thymectomy had less new production of CD4+ and CD8+ lymphocytes than controls (mean CD4+ signal joint T-cell receptor excision circle [sjTREC] count, 1451 vs. 526 per microgram of DNA [P = 0.009]; mean CD8+ sjTREC count, 1466 vs. 447 per microgram of DNA [P<0.001]) and higher levels of proinflammatory cytokines in the blood. CONCLUSIONS In this study, all-cause mortality and the risk of cancer were higher among patients who had undergone thymectomy than among controls. Thymectomy also appeared be associated with an increased risk of autoimmune disease when patients with preoperative infection, cancer, or autoimmune disease were excluded from the analysis. (Funded by the Tracey and Craig A. Huff Harvard Stem Cell Institute Research Support Fund and others.).
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Affiliation(s)
- Kameron A Kooshesh
- From the Centers for Regenerative Medicine (K.A.K., D.B.S., K.G., D.T.S.) and Systems Biology (B.H.F.), Massachusetts General Hospital, the Harvard Stem Cell Institute (K.A.K., K.G., D.T.S.), the Department of Stem Cell and Regenerative Biology, Harvard University (K.A.K., K.G., D.T.S.), and Harvard Medical School (K.A.K., B.H.F., D.B.S., K.G., D.T.S.) - all in Boston
| | - Brody H Foy
- From the Centers for Regenerative Medicine (K.A.K., D.B.S., K.G., D.T.S.) and Systems Biology (B.H.F.), Massachusetts General Hospital, the Harvard Stem Cell Institute (K.A.K., K.G., D.T.S.), the Department of Stem Cell and Regenerative Biology, Harvard University (K.A.K., K.G., D.T.S.), and Harvard Medical School (K.A.K., B.H.F., D.B.S., K.G., D.T.S.) - all in Boston
| | - David B Sykes
- From the Centers for Regenerative Medicine (K.A.K., D.B.S., K.G., D.T.S.) and Systems Biology (B.H.F.), Massachusetts General Hospital, the Harvard Stem Cell Institute (K.A.K., K.G., D.T.S.), the Department of Stem Cell and Regenerative Biology, Harvard University (K.A.K., K.G., D.T.S.), and Harvard Medical School (K.A.K., B.H.F., D.B.S., K.G., D.T.S.) - all in Boston
| | - Karin Gustafsson
- From the Centers for Regenerative Medicine (K.A.K., D.B.S., K.G., D.T.S.) and Systems Biology (B.H.F.), Massachusetts General Hospital, the Harvard Stem Cell Institute (K.A.K., K.G., D.T.S.), the Department of Stem Cell and Regenerative Biology, Harvard University (K.A.K., K.G., D.T.S.), and Harvard Medical School (K.A.K., B.H.F., D.B.S., K.G., D.T.S.) - all in Boston
| | - David T Scadden
- From the Centers for Regenerative Medicine (K.A.K., D.B.S., K.G., D.T.S.) and Systems Biology (B.H.F.), Massachusetts General Hospital, the Harvard Stem Cell Institute (K.A.K., K.G., D.T.S.), the Department of Stem Cell and Regenerative Biology, Harvard University (K.A.K., K.G., D.T.S.), and Harvard Medical School (K.A.K., B.H.F., D.B.S., K.G., D.T.S.) - all in Boston
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Petersson M, Feresiadou A, Jons D, Ilinca A, Lundin F, Johansson R, Budzianowska A, Roos AK, Kågström V, Gunnarsson M, Sundström P, Piehl F, Brauner S. Patient-Reported Symptom Severity in a Nationwide Myasthenia Gravis Cohort: Cross-sectional Analysis of the Swedish GEMG Study. Neurology 2021; 97:e1382-e1391. [PMID: 34376512 PMCID: PMC8520390 DOI: 10.1212/wnl.0000000000012604] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 07/09/2021] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND AND OBJECTIVES To describe myasthenia gravis activities of daily living (MG-ADL) in relation to clinical characteristics in a large Swedish nationwide cohort. METHODS In a cross-sectional prevalence cohort study, the Genes and Environment in Myasthenia Gravis study, performed from November 2018 through August 2019, patients with myasthenia gravis (MG) were invited to submit an extensive 106-item life environment questionnaire, including the MG-ADL score. Patients were classified into early-onset MG (EOMG, <50 years), late-onset MG (LOMG, ≥50 years), or thymoma-associated MG (TAMG). Comparisons of disease-specific characteristics were made between subgroups, sexes, and different MG-ADL scores. RESULTS A total of 1,077 patients were included, yielding a 74% response rate: 505 (47%) were classified as EOMG, 520 (48%) LOMG, and 45 (4%) TAMG. Mean age at inclusion was 64.3 years (SD 15.7) and mean disease duration was 14.6 years (SD 14.0). Complete MG-ADL scores (n = 1,035) ranged from 0p to 18p, where 26% reported a score of 0p. Higher MG-ADL scores were associated with female sex, obesity, and diagnostic delay (odds ratio [OR] 1.62, 1.72, and 1.69; p adj = 0.017, 0.013, and 0.008) and inversely correlated with high educational attainment (OR 0.59; p adj = 0.02), but not with age at inclusion, disease subtype, or disease duration. Almost half of the population (47%) reported MG-ADL ≥3p, corresponding to an unsatisfactory symptom state. DISCUSSION In this nationwide study, comprising more than 40% of the prevalent MG population in Sweden, almost half of the patients reported current disease symptoms associated with an unsatisfactory symptom state, indicating the need for improved treatment options.
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Affiliation(s)
- Malin Petersson
- From the Department of Clinical Neuroscience (M.P., F.P., S.B.), Karolinska Institutet, Stockholm; Department of Neuroscience, Neurology (A.F.), Uppsala University; Department of Clinical Neuroscience, Institute of Neuroscience and Physiology (D.J.), the Sahlgrenska Academy, University of Gothenburg; Department of Neurology (D.J.), Sahlgrenska University Hospital, Gothenburg; Department of Clinical Sciences Lund, Neurology (A.I.), Skåne University Hospital, Lund University, Malmö; Departments of Neurology (F.L.) and Biomedical and Clinical Sciences (F.L., A.B.), Division of Neurobiology, Linköping University; Department of Neurology and Rehabilitation (R.J.), Karlstad Central Hospital; Department of Internal Medicine in Jönköping (A.B.), Section of Neurology, Region Jönköping County; Department of Clinical Science, Neurosciences (A.-K.R.), Unit of Neurology, Umeå University, Östersund; Rehabilitation Clinic (V.K.), Sundsvall Hospital; Department of Neurology, Faculty of Medicine and Health (M.G.), Örebro University; Department of Clinical Science, Neurosciences (P.S.), Umeå University; and Department of Neurology (F.P., S.B.), Karolinska University Hospital, Stockholm, Sweden
| | - Amalia Feresiadou
- From the Department of Clinical Neuroscience (M.P., F.P., S.B.), Karolinska Institutet, Stockholm; Department of Neuroscience, Neurology (A.F.), Uppsala University; Department of Clinical Neuroscience, Institute of Neuroscience and Physiology (D.J.), the Sahlgrenska Academy, University of Gothenburg; Department of Neurology (D.J.), Sahlgrenska University Hospital, Gothenburg; Department of Clinical Sciences Lund, Neurology (A.I.), Skåne University Hospital, Lund University, Malmö; Departments of Neurology (F.L.) and Biomedical and Clinical Sciences (F.L., A.B.), Division of Neurobiology, Linköping University; Department of Neurology and Rehabilitation (R.J.), Karlstad Central Hospital; Department of Internal Medicine in Jönköping (A.B.), Section of Neurology, Region Jönköping County; Department of Clinical Science, Neurosciences (A.-K.R.), Unit of Neurology, Umeå University, Östersund; Rehabilitation Clinic (V.K.), Sundsvall Hospital; Department of Neurology, Faculty of Medicine and Health (M.G.), Örebro University; Department of Clinical Science, Neurosciences (P.S.), Umeå University; and Department of Neurology (F.P., S.B.), Karolinska University Hospital, Stockholm, Sweden
| | - Daniel Jons
- From the Department of Clinical Neuroscience (M.P., F.P., S.B.), Karolinska Institutet, Stockholm; Department of Neuroscience, Neurology (A.F.), Uppsala University; Department of Clinical Neuroscience, Institute of Neuroscience and Physiology (D.J.), the Sahlgrenska Academy, University of Gothenburg; Department of Neurology (D.J.), Sahlgrenska University Hospital, Gothenburg; Department of Clinical Sciences Lund, Neurology (A.I.), Skåne University Hospital, Lund University, Malmö; Departments of Neurology (F.L.) and Biomedical and Clinical Sciences (F.L., A.B.), Division of Neurobiology, Linköping University; Department of Neurology and Rehabilitation (R.J.), Karlstad Central Hospital; Department of Internal Medicine in Jönköping (A.B.), Section of Neurology, Region Jönköping County; Department of Clinical Science, Neurosciences (A.-K.R.), Unit of Neurology, Umeå University, Östersund; Rehabilitation Clinic (V.K.), Sundsvall Hospital; Department of Neurology, Faculty of Medicine and Health (M.G.), Örebro University; Department of Clinical Science, Neurosciences (P.S.), Umeå University; and Department of Neurology (F.P., S.B.), Karolinska University Hospital, Stockholm, Sweden
| | - Andreea Ilinca
- From the Department of Clinical Neuroscience (M.P., F.P., S.B.), Karolinska Institutet, Stockholm; Department of Neuroscience, Neurology (A.F.), Uppsala University; Department of Clinical Neuroscience, Institute of Neuroscience and Physiology (D.J.), the Sahlgrenska Academy, University of Gothenburg; Department of Neurology (D.J.), Sahlgrenska University Hospital, Gothenburg; Department of Clinical Sciences Lund, Neurology (A.I.), Skåne University Hospital, Lund University, Malmö; Departments of Neurology (F.L.) and Biomedical and Clinical Sciences (F.L., A.B.), Division of Neurobiology, Linköping University; Department of Neurology and Rehabilitation (R.J.), Karlstad Central Hospital; Department of Internal Medicine in Jönköping (A.B.), Section of Neurology, Region Jönköping County; Department of Clinical Science, Neurosciences (A.-K.R.), Unit of Neurology, Umeå University, Östersund; Rehabilitation Clinic (V.K.), Sundsvall Hospital; Department of Neurology, Faculty of Medicine and Health (M.G.), Örebro University; Department of Clinical Science, Neurosciences (P.S.), Umeå University; and Department of Neurology (F.P., S.B.), Karolinska University Hospital, Stockholm, Sweden
| | - Fredrik Lundin
- From the Department of Clinical Neuroscience (M.P., F.P., S.B.), Karolinska Institutet, Stockholm; Department of Neuroscience, Neurology (A.F.), Uppsala University; Department of Clinical Neuroscience, Institute of Neuroscience and Physiology (D.J.), the Sahlgrenska Academy, University of Gothenburg; Department of Neurology (D.J.), Sahlgrenska University Hospital, Gothenburg; Department of Clinical Sciences Lund, Neurology (A.I.), Skåne University Hospital, Lund University, Malmö; Departments of Neurology (F.L.) and Biomedical and Clinical Sciences (F.L., A.B.), Division of Neurobiology, Linköping University; Department of Neurology and Rehabilitation (R.J.), Karlstad Central Hospital; Department of Internal Medicine in Jönköping (A.B.), Section of Neurology, Region Jönköping County; Department of Clinical Science, Neurosciences (A.-K.R.), Unit of Neurology, Umeå University, Östersund; Rehabilitation Clinic (V.K.), Sundsvall Hospital; Department of Neurology, Faculty of Medicine and Health (M.G.), Örebro University; Department of Clinical Science, Neurosciences (P.S.), Umeå University; and Department of Neurology (F.P., S.B.), Karolinska University Hospital, Stockholm, Sweden
| | - Rune Johansson
- From the Department of Clinical Neuroscience (M.P., F.P., S.B.), Karolinska Institutet, Stockholm; Department of Neuroscience, Neurology (A.F.), Uppsala University; Department of Clinical Neuroscience, Institute of Neuroscience and Physiology (D.J.), the Sahlgrenska Academy, University of Gothenburg; Department of Neurology (D.J.), Sahlgrenska University Hospital, Gothenburg; Department of Clinical Sciences Lund, Neurology (A.I.), Skåne University Hospital, Lund University, Malmö; Departments of Neurology (F.L.) and Biomedical and Clinical Sciences (F.L., A.B.), Division of Neurobiology, Linköping University; Department of Neurology and Rehabilitation (R.J.), Karlstad Central Hospital; Department of Internal Medicine in Jönköping (A.B.), Section of Neurology, Region Jönköping County; Department of Clinical Science, Neurosciences (A.-K.R.), Unit of Neurology, Umeå University, Östersund; Rehabilitation Clinic (V.K.), Sundsvall Hospital; Department of Neurology, Faculty of Medicine and Health (M.G.), Örebro University; Department of Clinical Science, Neurosciences (P.S.), Umeå University; and Department of Neurology (F.P., S.B.), Karolinska University Hospital, Stockholm, Sweden
| | - Anna Budzianowska
- From the Department of Clinical Neuroscience (M.P., F.P., S.B.), Karolinska Institutet, Stockholm; Department of Neuroscience, Neurology (A.F.), Uppsala University; Department of Clinical Neuroscience, Institute of Neuroscience and Physiology (D.J.), the Sahlgrenska Academy, University of Gothenburg; Department of Neurology (D.J.), Sahlgrenska University Hospital, Gothenburg; Department of Clinical Sciences Lund, Neurology (A.I.), Skåne University Hospital, Lund University, Malmö; Departments of Neurology (F.L.) and Biomedical and Clinical Sciences (F.L., A.B.), Division of Neurobiology, Linköping University; Department of Neurology and Rehabilitation (R.J.), Karlstad Central Hospital; Department of Internal Medicine in Jönköping (A.B.), Section of Neurology, Region Jönköping County; Department of Clinical Science, Neurosciences (A.-K.R.), Unit of Neurology, Umeå University, Östersund; Rehabilitation Clinic (V.K.), Sundsvall Hospital; Department of Neurology, Faculty of Medicine and Health (M.G.), Örebro University; Department of Clinical Science, Neurosciences (P.S.), Umeå University; and Department of Neurology (F.P., S.B.), Karolinska University Hospital, Stockholm, Sweden
| | - Anna-Karin Roos
- From the Department of Clinical Neuroscience (M.P., F.P., S.B.), Karolinska Institutet, Stockholm; Department of Neuroscience, Neurology (A.F.), Uppsala University; Department of Clinical Neuroscience, Institute of Neuroscience and Physiology (D.J.), the Sahlgrenska Academy, University of Gothenburg; Department of Neurology (D.J.), Sahlgrenska University Hospital, Gothenburg; Department of Clinical Sciences Lund, Neurology (A.I.), Skåne University Hospital, Lund University, Malmö; Departments of Neurology (F.L.) and Biomedical and Clinical Sciences (F.L., A.B.), Division of Neurobiology, Linköping University; Department of Neurology and Rehabilitation (R.J.), Karlstad Central Hospital; Department of Internal Medicine in Jönköping (A.B.), Section of Neurology, Region Jönköping County; Department of Clinical Science, Neurosciences (A.-K.R.), Unit of Neurology, Umeå University, Östersund; Rehabilitation Clinic (V.K.), Sundsvall Hospital; Department of Neurology, Faculty of Medicine and Health (M.G.), Örebro University; Department of Clinical Science, Neurosciences (P.S.), Umeå University; and Department of Neurology (F.P., S.B.), Karolinska University Hospital, Stockholm, Sweden
| | - Viktor Kågström
- From the Department of Clinical Neuroscience (M.P., F.P., S.B.), Karolinska Institutet, Stockholm; Department of Neuroscience, Neurology (A.F.), Uppsala University; Department of Clinical Neuroscience, Institute of Neuroscience and Physiology (D.J.), the Sahlgrenska Academy, University of Gothenburg; Department of Neurology (D.J.), Sahlgrenska University Hospital, Gothenburg; Department of Clinical Sciences Lund, Neurology (A.I.), Skåne University Hospital, Lund University, Malmö; Departments of Neurology (F.L.) and Biomedical and Clinical Sciences (F.L., A.B.), Division of Neurobiology, Linköping University; Department of Neurology and Rehabilitation (R.J.), Karlstad Central Hospital; Department of Internal Medicine in Jönköping (A.B.), Section of Neurology, Region Jönköping County; Department of Clinical Science, Neurosciences (A.-K.R.), Unit of Neurology, Umeå University, Östersund; Rehabilitation Clinic (V.K.), Sundsvall Hospital; Department of Neurology, Faculty of Medicine and Health (M.G.), Örebro University; Department of Clinical Science, Neurosciences (P.S.), Umeå University; and Department of Neurology (F.P., S.B.), Karolinska University Hospital, Stockholm, Sweden
| | - Martin Gunnarsson
- From the Department of Clinical Neuroscience (M.P., F.P., S.B.), Karolinska Institutet, Stockholm; Department of Neuroscience, Neurology (A.F.), Uppsala University; Department of Clinical Neuroscience, Institute of Neuroscience and Physiology (D.J.), the Sahlgrenska Academy, University of Gothenburg; Department of Neurology (D.J.), Sahlgrenska University Hospital, Gothenburg; Department of Clinical Sciences Lund, Neurology (A.I.), Skåne University Hospital, Lund University, Malmö; Departments of Neurology (F.L.) and Biomedical and Clinical Sciences (F.L., A.B.), Division of Neurobiology, Linköping University; Department of Neurology and Rehabilitation (R.J.), Karlstad Central Hospital; Department of Internal Medicine in Jönköping (A.B.), Section of Neurology, Region Jönköping County; Department of Clinical Science, Neurosciences (A.-K.R.), Unit of Neurology, Umeå University, Östersund; Rehabilitation Clinic (V.K.), Sundsvall Hospital; Department of Neurology, Faculty of Medicine and Health (M.G.), Örebro University; Department of Clinical Science, Neurosciences (P.S.), Umeå University; and Department of Neurology (F.P., S.B.), Karolinska University Hospital, Stockholm, Sweden
| | - Peter Sundström
- From the Department of Clinical Neuroscience (M.P., F.P., S.B.), Karolinska Institutet, Stockholm; Department of Neuroscience, Neurology (A.F.), Uppsala University; Department of Clinical Neuroscience, Institute of Neuroscience and Physiology (D.J.), the Sahlgrenska Academy, University of Gothenburg; Department of Neurology (D.J.), Sahlgrenska University Hospital, Gothenburg; Department of Clinical Sciences Lund, Neurology (A.I.), Skåne University Hospital, Lund University, Malmö; Departments of Neurology (F.L.) and Biomedical and Clinical Sciences (F.L., A.B.), Division of Neurobiology, Linköping University; Department of Neurology and Rehabilitation (R.J.), Karlstad Central Hospital; Department of Internal Medicine in Jönköping (A.B.), Section of Neurology, Region Jönköping County; Department of Clinical Science, Neurosciences (A.-K.R.), Unit of Neurology, Umeå University, Östersund; Rehabilitation Clinic (V.K.), Sundsvall Hospital; Department of Neurology, Faculty of Medicine and Health (M.G.), Örebro University; Department of Clinical Science, Neurosciences (P.S.), Umeå University; and Department of Neurology (F.P., S.B.), Karolinska University Hospital, Stockholm, Sweden
| | - Fredrik Piehl
- From the Department of Clinical Neuroscience (M.P., F.P., S.B.), Karolinska Institutet, Stockholm; Department of Neuroscience, Neurology (A.F.), Uppsala University; Department of Clinical Neuroscience, Institute of Neuroscience and Physiology (D.J.), the Sahlgrenska Academy, University of Gothenburg; Department of Neurology (D.J.), Sahlgrenska University Hospital, Gothenburg; Department of Clinical Sciences Lund, Neurology (A.I.), Skåne University Hospital, Lund University, Malmö; Departments of Neurology (F.L.) and Biomedical and Clinical Sciences (F.L., A.B.), Division of Neurobiology, Linköping University; Department of Neurology and Rehabilitation (R.J.), Karlstad Central Hospital; Department of Internal Medicine in Jönköping (A.B.), Section of Neurology, Region Jönköping County; Department of Clinical Science, Neurosciences (A.-K.R.), Unit of Neurology, Umeå University, Östersund; Rehabilitation Clinic (V.K.), Sundsvall Hospital; Department of Neurology, Faculty of Medicine and Health (M.G.), Örebro University; Department of Clinical Science, Neurosciences (P.S.), Umeå University; and Department of Neurology (F.P., S.B.), Karolinska University Hospital, Stockholm, Sweden
| | - Susanna Brauner
- From the Department of Clinical Neuroscience (M.P., F.P., S.B.), Karolinska Institutet, Stockholm; Department of Neuroscience, Neurology (A.F.), Uppsala University; Department of Clinical Neuroscience, Institute of Neuroscience and Physiology (D.J.), the Sahlgrenska Academy, University of Gothenburg; Department of Neurology (D.J.), Sahlgrenska University Hospital, Gothenburg; Department of Clinical Sciences Lund, Neurology (A.I.), Skåne University Hospital, Lund University, Malmö; Departments of Neurology (F.L.) and Biomedical and Clinical Sciences (F.L., A.B.), Division of Neurobiology, Linköping University; Department of Neurology and Rehabilitation (R.J.), Karlstad Central Hospital; Department of Internal Medicine in Jönköping (A.B.), Section of Neurology, Region Jönköping County; Department of Clinical Science, Neurosciences (A.-K.R.), Unit of Neurology, Umeå University, Östersund; Rehabilitation Clinic (V.K.), Sundsvall Hospital; Department of Neurology, Faculty of Medicine and Health (M.G.), Örebro University; Department of Clinical Science, Neurosciences (P.S.), Umeå University; and Department of Neurology (F.P., S.B.), Karolinska University Hospital, Stockholm, Sweden.
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