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Objective: Making a differential diagnosis of psoriatic arthritis (PsA) is not straightforward. This is partly because of its heterogeneous presentation and partly because many patients with PsA are initially diagnosed with psoriasis and treated in primary care or by dermatologists, with referral to rheumatologists being delayed. Once diagnosed, optimal disease control requires frequent specialist monitoring, adjustment or switching of therapies, and management of comorbidities and concomitant diseases, as well as attention to patients' overall well-being. Given the breadth of expertise that diagnosis and management of PsA requires, we sought to define a collaborative, structured framework that supports the optimisation of multidisciplinary care for patients with PsA in Europe., Methods: An expert panel comprising four rheumatologists, three dermatologists, two specialist nurses and one psychologist-from Spain, the United Kingdom, The Netherlands, Germany, France and Italy-met face-to-face to take part in a modified Delphi exercise., Results: The result of this exercise is a set of recommendations that are based on combining published evidence with the panel's extensive clinical experience. Recommendations can be implemented in a number of ways, but the central call-to-action of this framework is the need for improved collaboration between dermatologists (or primary care physicians) and rheumatologists. This could occur in a variety of different formats: standard referral pathways, multidisciplinary physician meetings to discuss patient cases, or 'one stop', combined clinics., Conclusion: We anticipate that when the majority of patients with PsA receive regular multidisciplinary care, improved patient outcomes will follow, although robust research is needed to explore this assumption., (Copyright © 2021 The Authors. Published by Elsevier Masson SAS.. All rights reserved.)

Objectives: To establish recommendations for pharmacological treatment of knee osteoarthritis specific to France., Methods: On behalf of the French Society of Rheumatology (SFR), a bibliography group analyzed the literature on the efficacy and safety of each pharmacological treatment for knee osteoarthritis. This group joined a multidisciplinary working group to draw up recommendations. Strength of recommendation and quality of evidence level were assigned to each recommendation. A review committee gave its level of agreement., Results: Five general principles were established: 1) need to combine pharmacological and non-pharmacological treatments, 2) personalization of treatment, 3) symptomatic and/or functional aim of pharmacological treatments, 4) need to regularly re-assess the treatments and 5) discussion about arthroplasty if medical treatment fails. Six recommendations involved oral treatments: 1) paracetamol should not necessarily be prescribed systematically and/or continuously, 2) NSAIDs, possibly as first-line, 3) weak opioids, 4) strong opioids, 5) symptomatic slow-acting drugs of osteoarthritis, and 6) duloxetine (off-label use). Two recommendations involved topical agents (NSAIDs and capsaicin<1%). Three recommendations involved intra-articular treatments: corticosteroid or hyaluronic acid injections that can be proposed to patients. The experts did not draw a conclusion about the benefits of platelet-rich plasma injections., Conclusion: These are the first recommendations of the SFR on the pharmacological treatment of knee osteoarthritis., (Copyright © 2020 Société française de rhumatologie. Published by Elsevier Masson SAS. All rights reserved.)

Objective: To develop French Society of Rheumatology-endorsed recommendations for the management of urate-lowering therapy (ULT)., Methods: Evidence-based recommendations were developed by 9 rheumatologists (academic or community-based), 3 general practitioners, 1 cardiologist, 1 nephrologist and 1 patient, using a systematic literature search, one physical meeting to draft recommendations and two Delphi rounds to finalize them., Results: A set of 3 overarching principles and 5 recommendations was elaborated. The overarching principles emphasize the importance of patient education, especially the need for explaining the objective of lowering serum urate (SU) level to obtain crystal dissolution, clinical symptoms disappearance and avoidance of complications. ULT is indicated as soon as the diagnosis of gout is established. SU level must be decreased below 300μmol/l (50mg/l) in all gout patients or at least below 360μmol/l (60ml/l) when the 300μmol/l target cannot be reached, and must be maintained at these targets and monitored life-long. The choice of the ULT primarily relies on renal function: in patients whose estimated glomerular filtration rate (eGFR) is above 60ml/min/1.73m 2 , first-line ULT is allopurinol; in those with eGFR between 30 and 60ml/min/1.73m 2 , allopurinol use must be cautious and febuxostat can be considered as an alternative; and in those whose eGFR is below 30ml/min/1.73m 2 , allopurinol must be avoided and febuxostat should be preferred. Prophylaxis of ULT-induced gout flares involves progressive increase of ULT dosage and low-dose colchicine for at least 6 months. Cardiovascular risk factors and diseases, the metabolic syndrome and chronic kidney disease must be screened and managed., Conclusion: These recommendations aim to provide simple and clear guidance for the management of ULT in France., (Copyright © 2020. Published by Elsevier Masson SAS.)

Objective: Epidemiological and experimental studies have suggested that lipid disorders might be involved in the pathophysiology of knee osteoarthritis (OA). Studies assessing the effect of statins on knee OA progression have shown conflicting results. We investigated the impact of statin use on radiological progression in patients with radiological and symptomatic knee OA., Methods: In total, 336 patients from the placebo arm of SEKOIA trial completed the 3-year follow-up and were included in this post-hoc analysis. Statin use was recorded at baseline interview. Minimal medial tibiofemoral joint space was measured on plain radiographs by an automated method at baseline and then annually. Radiologic progression was defined as joint space narrowing≥0.5mm over 3 years., Results: Overall, 71 patients were statin users (21.1%). They had a higher BMI (31.1±5.3 vs. 29.3±5.2kg/m 2 , P=0.008), a higher sum of metabolic factors (≥3 factors: 43.7% vs 7.2%; P for trend<0.001) and a higher rate of radiological progression (49.3% vs. 32.1%, P=0.007) as compared to statin non-users. The significant association between radiological progression and statin use was independent of age, gender, WOMAC global score, disease duration, baseline joint space width, hypertension, type 2 diabetes, obesity (BMI>30kg/m 2 ) and cardiovascular diseases [relative risk 1.49 (95% CI: 1.10-2.02), P=0.010]., Conclusion: Among patients with knee OA, statin use was associated with radiological worsening over 3 years, regardless of other potential confounding factors (obesity, type 2 diabetes, hypertension, disease duration, symptom intensity and radiological severity)., (Copyright © 2017 Société française de rhumatologie. Published by Elsevier Masson SAS. All rights reserved.)

Objective: In real life, in a substantial proportion of gouty patients receiving urate-lowering therapy (ULT), urate levels are not maintained below the target of 6.0 mg/dl. We aimed to search for factors associated with poor control of serum uric acid (UA) levels in a large population of patients with gout receiving ULT., Methods: This cross-sectional study involved adults with gout in primary care who were receiving ULT. Demographics, gout history, comorbidities, lifestyle, clinical factors, concomitant treatments, and laboratory data were compared in well-controlled gout (serum UA ≤6.0 mg/dl) versus poorly controlled gout (serum UA >6.0 mg/dl) on univariate and multivariate analyses., Results: Among the 1,995 patients receiving ULT, only 445 (22.3%) had reached the target of 6.0 mg/dl serum UA. Such patients had a lower rate of gout flares within the previous year than patients without the target (mean ± SD 1.7 ± 1.4 versus 2.1 ± 1.4; P < 0.0001). The main factors associated with poor serum UA level control in multivariate analysis were low high-density lipoprotein cholesterol level (adjusted odds ratio [OR] 0.5 [95% confidence interval (95% CI) 0.26-0.96]; P = 0.04), high total cholesterol level (OR 1.83 [95% CI 1.29-2.60]; P = 0.0007), increased waist circumference (OR 1.55 [95% CI 1.11-2.13]; P = 0.008), and alcohol consumption (OR 1.52 [95% CI 1.15-2.00]; P = 0.003)., Conclusion: Dyslipidemia, abdominal obesity, and alcohol consumption are the main factors associated with a poor response to ULT. Knowledge of these factors might help physicians identify cases of gout that may be less likely to achieve target urate level., (© 2017, American College of Rheumatology.)

Objectives: In patients with gout, maintaining too low serum uric acid (SUA) level with urate-lowering therapy is a concern because uric acid is thought to be neuroprotective. However, the relation between SUA and dementia remains debated. This study aimed to investigate the impact of SUA level on the incidence of dementia., Methods: We assessed the longitudinal association between SUA level and incident dementia (Diagnostic and Statistical Manual of Mental Disorders Version IV (DSM-IV) criteria) in a large cohort of healthy older people from the community (Three-City Dijon cohort). Additionally, we investigated the relation between SUA level and MRI markers of brain ageing (white matter hyperintensity volume (WMHV), lacunes and hippocampal volume)., Results: The study sample comprised 1598 people (mean (SD) age 72.4(4.1) years, 38.3% male). During the 13,357 person-years of follow-up (median duration: 10.1 years), dementia developed in 110 participants (crude incidence rate: 8.2/1000 person-years). After multiple adjustments, the multivariate HR with the highest (≥75th percentile) versus lowest SUA level was 1.79 (95% CI 1.17 to 2.73; p=0.007). The association was stronger with vascular or mixed dementia (HR=3.66 (95% CI 1.29 to 10.41), p=0.015) than Alzheimer's disease (HR=1.55 (95% CI 0.92 to 2.61), p=0.10). There was a non-significant trend towards an association between high SUA level and extensive WMHV (p=0.10), a biomarker of small vessel disease, but not hippocampal volume (p=0.94) or lacunes (p=0.86). The association between SUA level and vascular or mixed dementia might be affected by interim strokes., Conclusions: Risk of dementia, especially vascular or mixed dementia, may be increased with high SUA levels in elderly people., Competing Interests: Competing interests: None declared., (© Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.)

Objective: To estimate adult gout prevalence in France., Methods: We used a previously established phone questionnaire that allowed for classifying patients as gouty or nongouty by 2 logistic regression models and 1 classification and regression tree (CART) model, the sensitivity and specificity of which were all more than 80%. The full questionnaire was administered by phone to subjects who acknowledged present or past nontraumatic acute pain in a peripheral joint, the others being classified as nongouty. A random sample of adults residing in France was derived from the national telephone directory (home and mobile) by the quota method and further redressed to match the French population. The target size for the interview survey conducted in March and June 2013 was 10,000 participants., Results: We interviewed 10,026 participants. All 3 models (2 logistic regression models and a CART model) converged to an estimated gout prevalence of 0.9%. This prevalence was lower than that estimated by self-reporting only (3.7% [95% confidence interval 3.3-4.1]). The prevalence was higher for men than women and increased with age but did not differ by area of France., Conclusion: Gout prevalence in the adult population of France in 2013 was estimated at 0.9%. Studies using self-reporting only might overestimate the prevalence., (© 2016, American College of Rheumatology.)

Objectives: DESIR is a prospective longitudinal multicentric French cohort of patients with inflammatory back pain suggestive of spondyloarthritis, with a 10-year-follow-up. The purpose is to evaluate the performances of the different sets of classification criteria for axial spondyloarthritis, and to describe the frequency and characteristics of the clinical features of axial spondyloarthritis., Methods: Demographic data and items allowing classification and indices calculation were collected, as well as biologic and imaging data. Baseline data are analyzed. The performance of the several classification criteria sets was evaluated (likelihood ratio) with the physician's diagnosis as external gold standard. For the clinical presentation of axial spondyloarthritis, a descriptive analysis was conducted., Results: Seven hundred and eight patients are included. Ninety-two percent of them satisfy at least one set of classification criteria: mNY 26%, Amor 79%, ESSG 78%, ASAS 70%; physician's confidence level 6.8±2.7. 81 and 83% of patients fulfil modified (including MRI) Amor or ESSG criteria. Axial involvement is present in 100% of the cases. NSAIDs are taken by 90%, with an NSAID sore of 50±46. BASDAI over 40 is noted in 60% and elevated CRP in 30% of the cases. HLA-B27 is present in 58%. According to ASDAS CRP levels, 12.7% are in inactive disease, 63% in high disease activity; mean BASFI was 30. Peripheral involvement is present in 57%, with arthritis in 37% of these. Enthesitis is noted in 49% of the patients, and first symptom in 22.5%; anterior chest wall involvement is noted in 44.6%, and dactylitis in 13%. For extra articular manifestations, psoriasis is recorded in 16%, uveitis in 8.5% and IBD in 5.1%. Smoking is present in 36.3% and hypertension in 5.1% of the cases., Conclusion: These data represent the base of evaluation of the follow-up of this cohort, allowing future specific studies., (Copyright © 2015 Société française de rhumatologie. Published by Elsevier SAS. All rights reserved.)

Objectives: In France, the prevalence of gout is currently unknown. We aimed to design a questionnaire to detect gout that would be suitable for use in a telephone survey by non-physicians and assessed its performance., Methods: We designed a 62-item questionnaire covering comorbidities, clinical features and treatment of gout. In a case-control study, we enrolled patients with a history of arthritis who had undergone arthrocentesis for synovial fluid analysis and crystal detection. Cases were patients with crystal-proven gout and controls were patients who had arthritis and effusion with no monosodium urate crystals in synovial fluid. The questionnaire was administered by phone to cases and controls by non-physicians who were unaware of the patient diagnosis. Logistic regression analysis and classification and regression trees were used to select items discriminating cases and controls., Results: We interviewed 246 patients (102 cases and 142 controls). Two logistic regression models (sensitivity 88.0% and 87.5%; specificity 93.0% and 89.8%, respectively) and one classification and regression tree model (sensitivity 81.4%, specificity 93.7%) revealed 11 informative items that allowed for classifying 90.0%, 88.8% and 88.5% of patients, respectively., Conclusions: We developed a questionnaire to detect gout containing 11 items that is fast and suitable for use in a telephone survey by non-physicians. The questionnaire demonstrated good properties for discriminating patients with and without gout. It will be administered in a large sample of the general population to estimate the prevalence of gout in France., (Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.)

Objectives: The reciprocal links between comorbidities and gout are complex. We used cluster analysis to attempt to identify different phenotypes on the basis of comorbidities in a large cohort of patients with gout., Methods: This was a cross-sectional multicentre study of 2763 gout patients conducted from November 2010 to May 2011. Cluster analysis was conducted separately for variables and for observations in patients, measuring proximity between variables and identifying homogeneous subgroups of patients. Variables used in both analyses were hypertension, obesity, diabetes, dyslipidaemia, heart failure, coronary heart disease, renal failure, liver disorders and cancer., Results: Comorbidities were common in this large cohort of patients with gout. Abdominal obesity, hypertension, metabolic syndrome and dyslipidaemia increased with gout duration, even after adjustment for age and sex. Five clusters (C1-C5) were found. Cluster C1 (n=332, 12%) consisted of patients with isolated gout and few comorbidities. In C2 (n=483, 17%), all patients were obese, with a high prevalence of hypertension. C3 (n=664, 24%) had the greatest proportion of patients with type 2 diabetes (75%). In C4 (n=782, 28%), almost all patients presented with dyslipidaemia (98%). Finally, C5 (n=502, 18%) consisted of almost all patients with a history of cardiovascular disease and renal failure, with a high rate of patients receiving diuretics., Conclusions: Cluster analysis of comorbidities in gout allowed us to identify five different clinical phenotypes, which may reflect different pathophysiological processes in gout., (Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.)

Spinal tuberculosis (TB) accounts for about 2% of all cases of TB. New methods of diagnosis such as magnetic resonance imaging (MRI) or percutaneous needle biopsy have emerged. Two distinct patterns of spinal TB can be identified, the classic form, called spondylodiscitis (SPD) in this article, and an increasingly common atypical form characterized by spondylitis without disk involvement (SPwD). We conducted a retrospective study of patients with spinal TB managed in the area of Paris, France, between 1980 and 1994 with the goal of defining the characteristics of spinal TB and comparing SPD to SPwD. The 103 consecutive patients included in our study had TB confirmed by bacteriologic and/or histologic studies of specimens from spinal or paraspinal lesions (93 patients) or from extraspinal skeletal lesions (10 patients). Sixty-eight percent of patients were foreign-born subjects from developing countries. None of our patients was HIV-positive. SPD accounted for 48% of cases and SPwD for 52%. Patients with SPwD were younger and more likely to be foreign-born and to have multiple skeletal TB lesions. Neurologic manifestations were observed in 50% of patients, with no differences between the SPD and SPwD groups. Of the 44 patients investigated by MRI, 6 had normal plain radiographs; MRI was consistently positive and demonstrated epidural involvement in 77% of cases. Bacteriologic and histologic yields were similar for surgical biopsy (n = 16) and for percutaneous needle aspiration and/or biopsy (n = 77). Cultures for Mycobacterium tuberculosis were positive in 83% of patients, and no strains were resistant to rifampin. Median duration of antituberculous chemotherapy was 14 months. Surgical treatment was performed in 24% of patients. There were 2 TB-related deaths. Our data suggest that SPwD may now be the most common pattern of spinal TB in foreign-born subjects in industrialized countries. The reasons for this remain to be elucidated.