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Trenkwalder C, Tinelli M, Sakkas GK, Dauvilliers Y, Ferri R, Rijsman R, Oertel W, Jaarsma J. Socioeconomic impact of restless legs syndrome and inadequate restless legs syndrome management across European settings. Eur J Neurol 2020; 28:691-706. [PMID: 33043569 DOI: 10.1111/ene.14582] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 10/02/2020] [Indexed: 11/28/2022]
Abstract
Restless legs syndrome (RLS) is one of the most common neurological disorders. It describes an irresistible urge to move the legs, mostly manifested in the evening and at night, which can lead to severe sleep disturbance. As part of the European Brain Council (EBC)-led Value-of-Treatment project, this study aimed at capturing the socioeconomic impact of RLS related to the inadequate diagnosis and treatment across different European healthcare settings. The economic burden of RLS was estimated using the published EBC framework of analysis in three separate European Union healthcare systems (France, Germany, and Italy). The RLS care pathway was mapped to identify the unmet needs of patients. Based on specific patient stories, the economic impact of correctly diagnosing RLS and changing between inadequate and target treatment was calculated using appropriate scenario analysis. RLS proved to be a significant personal and social burden, when epidemiological data, high prevalence of RLS, and its need for treatment are combined. By looking at the savings emerging from the provision of optimal care management (timely and correct diagnosis, evidence-based therapy, avoidance of therapy-related complications such as augmentation), the authors foresee substantial economic savings with the achievement of adequate diagnosis and treatment of RLS. Education about RLS is urgently needed for all subspecialties involved in RLS patient care as well as the general public. Equally important, the search for new causal treatment strategies should be intensified to reduce suffering and substantial societal cost.
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Affiliation(s)
- C Trenkwalder
- Paracelsus-Elena Klinik Kassel, Kassl, Germany.,Department of Neurosurgery, University Medical Center Göttingen, Göttingen, Germany
| | - M Tinelli
- Personal Social Services Research Unit, London School of Economics, London, United Kingdom
| | - G K Sakkas
- School of Sports and Nutritional Sciences, University of Thessaly, Greece, United Kingdom.,School of Sports and Health Sciences, Cardiff Metropolitan University, Cardiff, United Kingdom
| | - Y Dauvilliers
- Reference National Center for Narcolepsy, Sleep Unit, Department of Neurology, Gui-de-Chauliac Hospital, INSERM U1061, University of Montpellier, Montpellier, France
| | - R Ferri
- Oasi Research Institute-IRCCS, Troina, Italy
| | - R Rijsman
- Centre for Sleep and Wake Disorders, Department of Clinical Neurophysiology, Medical Center Haaglanden, The Hague, the Netherlands
| | - W Oertel
- Department of Neurology, University Clinic, Philipps University Marburg, Marburg, Germany.,European Brain Council, Brussels, Belgium.,European Academy of Neurology, Wien, Austria
| | - J Jaarsma
- European Brain Council, Brussels, Belgium.,European Alliance for Restless Legs Syndrome, Amsterdam, the Netherlands.,European Federation of Neurological Associations, Brussels, Belgium
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Tsekoura M, Billis E, Gliatis J, Tsepis E, Matzaroglou C, Sakkas GK, Beaudart C, Bruyere O, Tyllianakis M, Panagiotopoulos E. Cross cultural adaptation of the Greek sarcopenia quality of life (SarQoL) questionnaire. Disabil Rehabil 2018; 42:1006-1012. [PMID: 30453790 DOI: 10.1080/09638288.2018.1514076] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Purpose: To translate and validate into the Greek language and setting the Sarcopenia Quality of Life (SarQoL®) questionnaire.Methods: A convenience sample of 176 Greek elderly people (136 females, 40 males; aged 71.19 ± 7.95 years) was recruited, 50 of which (36 females, 14 males) were diagnosed sarcopenic. Questionnaire was back-translated and culturally adapted into Greek according to international guidelines. To validate the Greek SarQoL®, we assessed its validity (discriminative power, construct validity), reliability (internal consistency, test-retest reliability) and floor/ceiling effects. Participants were divided into sarcopenic and non-sarcopenic. Sarcopenic subjects apart from the Greek SarQoL (SarQoLGR) filled out the Greek versions of two generic questionnaires; Short Form-36 and EuroQoL 5-dimension.Results: The Greek SarQoL questionnaire was translated without major difficulties. SarQoLGR mean scores were 52.12 ± 11.04 (range: 24.74-71.81) for sarcopenic subjects and 68.23 ± 14.1 (range: 24.83-94.81) for non-sarcopenic ones. Results indicated good discriminative power across sarcopenic and non-sarcopenic subjects (p = 0.01), high internal consistency (Cronbach's alpha of 0.96) and excellent test-retest reliability (ICC = 0.96, 95% CI = 0.95-0.97). Neither a floor nor a ceiling effect was observed.Conclusions: The Greek SarQoL was found to be a reliable and valid measure of quality of life for sarcopenic patients. It is therefore, available for use in future clinical research and practice.Implications for rehabilitationThe Greek version of the SarQoL® questionnaire is a valid and reliable outcome measure for assessing patients with sarcopenia.The Greek SarQoL is recommended to be use in clinical settings and research.The Greek SarQoL® questionnaire is available online www.sarqol.org.
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Affiliation(s)
- Maria Tsekoura
- Department of Physiotherapy, School of Health and Caring Professions, Technological Educational Institute (ΤΕΙ) of Western Greece, Aigio, Greece
| | - Evdokia Billis
- Department of Physiotherapy, School of Health and Caring Professions, Technological Educational Institute (ΤΕΙ) of Western Greece, Aigio, Greece
| | - John Gliatis
- Department of Orthopaedic Surgery, University Hospital of Patras, Rio, Greece
| | - Elias Tsepis
- Department of Physiotherapy, School of Health and Caring Professions, Technological Educational Institute (ΤΕΙ) of Western Greece, Aigio, Greece
| | - Charalampos Matzaroglou
- Department of Physiotherapy, School of Health and Caring Professions, Technological Educational Institute (ΤΕΙ) of Western Greece, Aigio, Greece
| | - Giorgios K Sakkas
- Faculty of Sport and Health Sciences, University of St Mark & St John, Plymouth, UK
| | - Charlotte Beaudart
- Public Health, Epidemiology and Health Economics, University of Liège, Liège, Belgium
| | - Olivier Bruyere
- Public Health, Epidemiology and Health Economics, University of Liège, Liège, Belgium
| | - Minos Tyllianakis
- Department of Orthopaedic Surgery, University Hospital of Patras, Rio, Greece
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Mitrou GI, Poulianiti KP, Koutedakis Y, Jamurtas AZ, Maridaki MD, Stefanidis I, Sakkas GK, Karatzaferi C. Functional responses of uremic single skeletal muscle fibers to redox imbalances. Hippokratia 2017; 21:3. [PMID: 29904249 PMCID: PMC5997027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
BACKGROUND The exact causes of skeletal muscle weakness in chronic kidney disease (CKD) remain unknown with uremic toxicity and redox imbalances being implicated. To understand whether uremic muscle has acquired any sensitivity to acute redox changes we examined the effects of redox disturbances on force generation capacity. METHODS Permeabilized single psoas fibers (N =37) from surgically induced CKD (UREM) and sham-operated (CON) rabbits were exposed to an oxidizing (10 mM Hydrogen Peroxide, H2O2) and/or a reducing [10 mM Dithiothreitol (DTT)] agent, in a blind design, in two sets of experiments examining: A) the acute effect of the addition of H2O2 on maximal (pCa 4.4) isometric force of actively contracting fibers and the effect of incubation in DTT on subsequent re-activation and force recovery (N =9 CON; N =9 UREM fibers); B) the effect of incubation in H2O2 on both submaximal (pCa 6.2) and maximal (pCa 4.4) calcium activated isometric force generation (N =9 CON; N =10 UREM fibers). RESULTS Based on cross-sectional area (CSA) calculations, a 14 % atrophy in UREM fibers was revealed; thus forces were evaluated in absolute values and corrected for CSA (specific force) values. A) Addition of H2O2 during activation did not significantly affect force generation in any group or the pool of fibers. Incubation in DTT did not affect the CON fibers but caused a 12 % maximal isometric force decrease in UREM fibers (both in absolute force p =0.024, and specific force, p =0.027). B) Incubation in H2O2 during relaxation lowered subsequent maximal (but not submaximal) isometric forces in the Pool of fibers by 3.5 % (for absolute force p =0.033, for specific force p =0.019) but not in the fiber groups separately. CONCLUSIONS Force generation capacity of CON and UREM fibers is affected by oxidation similarly. However, DTT significantly lowered force in UREM muscle fibers. This may indicate that at baseline UREM muscle could have already been at a more reduced redox state than physiological. This observation warrants further investigation as it could be linked to disease-induced effects. HIPPOKRATIA 2017, 21(1): 3-7.
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Affiliation(s)
- G I Mitrou
- School of Physical Education and Sport Science, University of Thessaly, Trikala, Greece
- Biomechanical Solutions, Karditsa, Greece
| | - K P Poulianiti
- School of Physical Education and Sport Science, University of Thessaly, Trikala, Greece
| | - Y Koutedakis
- School of Physical Education and Sport Science, University of Thessaly, Trikala, Greece
- Institute for Research and Technology of Thessaly, Trikala, Greece
- School of Sport, Performing Arts and Leisure, Wolverhampton University, Wolverhampton, United Kingdom
| | - A Z Jamurtas
- School of Physical Education and Sport Science, University of Thessaly, Trikala, Greece
- Institute for Research and Technology of Thessaly, Trikala, Greece
| | - M D Maridaki
- School of Physical Education and Sport Science, National and Kapodistrian University of Athens, Athens, Greece
| | - I Stefanidis
- Department of Nephrology, Faculty of Medicine, University of Thessaly, Larissa, Greece
| | - G K Sakkas
- School of Physical Education and Sport Science, University of Thessaly, Trikala, Greece
- Institute for Research and Technology of Thessaly, Trikala, Greece
- Faculty of Sport and Health Sciences, University of St Mark and St John (Plymouth Marjon), Plymouth, United Kingdom
| | - C Karatzaferi
- School of Physical Education and Sport Science, University of Thessaly, Trikala, Greece
- Institute for Research and Technology of Thessaly, Trikala, Greece
- Faculty of Sport and Health Sciences, University of St Mark and St John (Plymouth Marjon), Plymouth, United Kingdom
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Stefanidis I, Vainas A, Giannaki CD, Dardiotis E, Spanoulis A, Sounidaki M, Eleftheriadis T, Liakopoulos V, Karatzaferi C, Sakkas GK, Zintzaras E, Hadjigeorgiou GM. Restless legs syndrome and mortality in hemodialysis patients. Sleep Med 2016; 22:103. [PMID: 26787055 DOI: 10.1016/j.sleep.2015.10.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 10/30/2015] [Indexed: 10/22/2022]
Affiliation(s)
- I Stefanidis
- Department of Nephrology, School of Medicine, University of Thessaly, Larissa, Greece.
| | - A Vainas
- Department of Nephrology, School of Medicine, University of Thessaly, Larissa, Greece
| | - C D Giannaki
- Department of Life and Health Sciences, University of Nicosia, Cyprus, Greece
| | - E Dardiotis
- Department of Neurology, School of Medicine, University of Thessaly, Larissa, Greece
| | - A Spanoulis
- Department of Nephrology, School of Medicine, University of Thessaly, Larissa, Greece
| | - M Sounidaki
- Department of Nephrology, School of Medicine, University of Thessaly, Larissa, Greece
| | - T Eleftheriadis
- Department of Nephrology, School of Medicine, University of Thessaly, Larissa, Greece
| | - V Liakopoulos
- Department of Nephrology, School of Medicine, University of Thessaly, Larissa, Greece
| | - C Karatzaferi
- School of Physical Education and Sport Science, University of Thessaly, Trikala, Greece
| | - G K Sakkas
- School of Physical Education and Sport Science, University of Thessaly, Trikala, Greece
| | - E Zintzaras
- Department of Biomathematics, School of Medicine, University of Thessaly, Larissa, Greece; Institute for Clinical Research and Health Policy Studies, Tufts University School of Medicine, Boston, MA, USA
| | - G M Hadjigeorgiou
- Department of Neurology, School of Medicine, University of Thessaly, Larissa, Greece
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Stefanidis I, Vainas A, Dardiotis E, Giannaki CD, Gourli P, Papadopoulou D, Vakianis P, Patsidis E, Eleftheriadis T, Liakopoulos V, Pournaras S, Sakkas GK, Zintzaras E, Hadjigeorgiou GM. Restless legs syndrome in hemodialysis patients: an epidemiologic survey in Greece. Sleep Med 2013; 14:1381-6. [PMID: 24210601 DOI: 10.1016/j.sleep.2013.05.022] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2013] [Revised: 05/12/2013] [Accepted: 05/18/2013] [Indexed: 11/25/2022]
Abstract
BACKGROUND Restless legs syndrome (RLS) is a sensorimotor disorder characterized by an uncontrolled need to move extremities accompanied by unpleasant sensations, which frequently leads to sleep disturbances. In hemodialysis (HD) patients, the previously reported RLS prevalence varied enormously, between 6% and 60%. In our study, we investigated the RLS prevalence in HD patients for the first time in Greece. METHODS A continuous sample of HD patients was studied between January and September of 2010 in six dialysis units in Greece. RLS diagnosis was based on the essential clinical criteria of the International RLS Study Group (IRLSSG). The standardized incidence ratio (SIR) for RLS in HD patients was calculated in comparison to data from a recent survey of the general population in Greece. RESULTS In our study of 579 HD patients in Greece (236 women; mean age, 65±13years), the prevalence of RLS was elevated in comparison to the general population (26.6% vs 3.9%), with an SIR of 5.4 (95% confidence interval [CI], 4.6-6.3). In the fully adjusted model, the risk for RLS in HD patients was reduced in older age (odds ratio [OR], 0.98 [95% CI, 0.96-0.99]) and increased in women (OR, 1.60 [95% CI, 1.05-2.43]) in cases with elevated levels of β2 microglobulin (OR, 1.15 [95% CI, 1.01-1.32]) and intact parathormone (iPTH) (OR, 1.30 [95% CI, 1.08-1.56]). CONCLUSION A high RLS prevalence was recorded in a large HD population in Greece, clearly suggesting the need for enhanced awareness of RLS in nephrology. The RLS risk was increased in women and in younger HD patients as well as in those with elevated β2 microglobulin and iPTH levels.
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Affiliation(s)
- I Stefanidis
- Department of Nephrology, School of Medicine, University of Thessaly, Larissa, Greece.
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Karatzaferi C, Sakkas GK. Editorial on special issue "lifestyle and ageing in muscle disease". J Muscle Res Cell Motil 2013; 33:153-4. [PMID: 22837014 DOI: 10.1007/s10974-012-9311-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Hadjigeorgiou GM, Stefanidis I, Dardiotis E, Aggellakis K, Sakkas GK, Xiromerisiou G, Konitsiotis S, Paterakis K, Poultsidi A, Tsimourtou V, Ralli S, Gourgoulianis K, Zintzaras E. Low RLS prevalence and awareness in central Greece: an epidemiological survey. Eur J Neurol 2007; 14:1275-80. [PMID: 17956448 DOI: 10.1111/j.1468-1331.2007.01966.x] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Restless legs syndrome (RLS) is a sensorimotor disorder with a general population prevalence of 3-10%. A single, previous epidemiological study performed in south-east Europe reported the lowest prevalence rate amongst European countries. We conducted a population-based survey of RLS in central Greece. A total of 4200 subjects were randomly recruited. We used the international RLS study group criteria for diagnosis and the severity scale for severity assessment in subjects with RLS. We also included questions to assess the level of awareness of RLS in our region. A total of 3033 subjects were screened. The overall lifetime prevalence was 3.9% with a female-to-male ratio of 2.6:1. Nearly half of RLS patients reported moderate to severe intensity of symptoms. After adjustment for multiple comparisons we found no association of RLS with education level, smoking, alcohol intake, caffeine consumption, shift work, professional pesticide use or comorbid illness. Our study revealed a low level of awareness amongst the population and physicians in our region and sub-optimal management. We provide further evidence for low prevalence of RLS in south-east Europe and a low level of awareness of RLS in our region.
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Affiliation(s)
- G M Hadjigeorgiou
- Department of Neurology, Medical School of Larissa, University of Thessaly, Larissa, Greece.
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Topp KS, Painter PL, Walcott S, Krasnoff JB, Adey D, Sakkas GK, Taylor J, McCormick K, TeNyenhuis M, Iofina M, Tomlanovich S, Stock P. Alterations in skeletal muscle structure are minimized with steroid withdrawal after renal transplantation. Transplantation 2003; 76:667-73. [PMID: 12973106 DOI: 10.1097/01.tp.0000076096.45542.1b] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Limitations in exercise capacity in kidney transplant recipients are thought to result in part from changes in muscle structure and function associated with immunosuppression therapy. METHODS We compared the percent distribution of skeletal muscle fiber types, cross-sectional areas, and ultrastructural morphologies in kidney transplant recipients treated with standard prednisone maintenance therapy (n=21) to those undergoing rapid withdrawal of prednisone using Simulect (interleukin 2 receptor inhibitor) (n=13). Skeletal muscle biopsy specimens from the vastus lateralis were analyzed at 3 and 12 months after transplantation and compared with sedentary controls (n=15). RESULTS Compared with the control group, the group receiving prednisone maintenance therapy had a significantly lower percentage of type I fibers and a higher percentage of type IIB/x fibers, evident at 3 and 12 months. Fiber type distribution in patients withdrawn from prednisone did not differ from controls. In patients withdrawn from prednisone, the cross-sectional areas of type I and IIA fibers were lower and the area of type IIB/x fibers was higher compared with controls. Likewise, ultrastructural studies revealed reduced volume densities of myofibrils and higher densities of interfibrillar and subsarcolemmal mitochondria. At 12 months there were no ultrastructural differences between the patients withdrawn from prednisone and controls. CONCLUSIONS We conclude that prednisone maintenance therapy contributes to the lower exercise capacity by altering the ratio of type I to type IIB/x fibers and by reducing myofilament density. The increase in mitochondria in patients receiving prednisone may reflect a switch from carbohydrate to lipid metabolism resulting from the glucocorticoid therapy.
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Affiliation(s)
- K S Topp
- Department of Physical Therapy and Rehabilitation Science, University of California, San Francisco, CA, USA.
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