janvier 31, 2023 | Posted by admin Un nouveau bilan du nombre de projets soumis et acceptés par le comité scientifique depuis le début de l’étude est accessible cliquer ici .
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décembre 28, 2022 | Posted by admin Bonjour,
Nous mettons en ligne aujourd’hui la nouvelle Newsletter patients rédigée par le Pr Laure GOSSEC, rhumatologue à l’hôpital La pitié-Salpêtrière.
Pour y avoir accès, merci de cliquer ici.
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décembre 13, 2022 | Posted by admin De nouveaux travaux ont été présentés lors du congrès de la Société Française de Rhumatologie (SFR) qui s’est déroulé du 11 au 13 décembre 2022 à Versailles :
• Facteurs associés aux différentes stratégies thérapeutiques dans la spondyloarthrite axiale débutante : une analyse multi-états sur 10 ans de la cohorte DESIR. E. Portier, S. Chevret, A. Ruyssen-Witrand, A. Molto.
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novembre 14, 2022 | Posted by admin Lors du congrès de l’ACR 2022 qui s’est déroulé du 10 au 14 novembre 2022 à Philadelphie, 1 abstract a été accepté :
▫ Determinants of Clinically Important Worsening in Early Axial Spondyloarthritis: Analysis of the DESIR Cohort over 5 Years. Faten Hamitouche , Sushmitha Kumaradev, Désirée van der Heijde, Sofia Ramiro, Alexandre Sepriano and Anna Molto.
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octobre 4, 2022 | Posted by admin Un nouvel article scientifique intitulé «Machine-learning derived algorithms for prediction of radiographic progression in early axial spondyloarthritis» a été publié dans le journal Clin Exp Rheumatol.
Romain Garofoli, Matthieu Resche-Rigon, Christian Roux, Désirée van der Heijde, Maxime Dougados, Anna Moltó.
Objectives:
To compare machine learning (ML) to traditional models to predict radiographic progression in patients with early axial spondyloarthritis (axSpA).
Methods:
We carried out a prospective French multicentric DESIR cohort study with 5 years of follow-up that included patients with chronic back pain for <3 years, suggestive of axSpA. Radiographic progression was defined as progression at the spine (increase of at least 1 point of mSASSS scores/2 years) or at the sacroiliac joint (worsening of at least one grade of the mNY score between 2 visits). Statistical analyses were based on patients without any missing data regarding the outcome and variables of interest (295 patients).Traditional modelling: we performed a multivariate logistic regression model (M1); then variable selection with stepwise selection based on Akaike Information Criterion (stepAIC) method (M2), and Least Absolute Shrinkage and Selection Operator (LASSO) method (M3).ML modelling: using « SuperLearner » package on R, we modelled radiographic progression with stepAIC, LASSO, random forest, Discrete Bayesian Additive Regression Trees Samplers (DBARTS), Generalized Additive Models (GAM), multivariate adaptive polynomial spline regression (polymars), Recursive Partitioning And Regression Trees (RPART) and Super Learner. Accuracy of these models was compared based on their 10-fold cross-validated AUC (cv-AUC).
Results:
10-fold cv-AUC for traditional models were 0.79 and 0.78 for M2 and M3, respectively. The three best models in the ML algorithms were the GAM, the DBARTS and the Super Learner models, with 10-fold cv-AUC of: 0.77, 0.76 and 0.74, respectively.
Conclusions:
Two traditional models predicted radiographic progression as good as the eight ML models tested in this population.
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juillet 5, 2022 | Posted by admin Un nouvel article scientifique intitulé «Hip Pain Associated with Acetabular Dysplasia in Patients with Suspected Axial Spondyloarthritis: DESIR Cohort Data» a été publié dans le journal BMC Musculosketel Disord.
Dewi Guellec, Guillaume Prado, Corinne Miceli-Richard, Guillermo Carvajal-Alegria, Alain Saraux.
Objectives:
To determine whether acetabular dysplasia is associated with hip pain at physical examination among adults with recent-onset inflammatory back pain (IBP) suggesting axial spondyloarthritis (axSpA).
Methods:
This cross-sectional ancillary study was conducted on the prospective DESIR cohort, which enrolled patients aged 18-50 years who had recent-onset IBP. Two readers used antero-posterior pelvic radiographs to assess the Tönnis angle, acetabular angle (AA), lateral centre-edge angle (LCEA), and femoral head extrusion index (FHEI). Abnormality of one or more of these four variables defined acetabular dysplasia. Hip pain upon physical examination was assessed based on Ritchie’s articular index.
Results:
The overall prevalence of acetabular dysplasia was 22% (139/636). The proportion of females was higher in the group with acetabular dysplasia. Hip pain was found in 21% (29/139) of patients with versus 12% (59/497) without acetabular dysplasia (OR, 1.96; 95% CI, 1.20 to 3.20); the association was significant in males (OR, 3.14; 95% CI, 1.44 to 6.86) but not females (OR, 1.39; 95% CI, 0.74 to 2.62). Results were similar when acetabular dysplasia was defined on the basis of LCEA alone (OR, 2.15; 95% CI, 1.18 to 2.62).
Conclusion:
Among patients with recent-onset IBP suggesting axSpA, acetabular dysplasia was significantly associated with hip pain in males. Hip pain related to acetabular dysplasia might result in overdiagnosis of hip involvement by axSpA.
Keywords: Acetabular dysplasia; Axial Spondyloarthritis; Hip.
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juin 21, 2022 | Posted by admin Un nouveau bilan du nombre de projets soumis et acceptés par le comité scientifique depuis le début de l’étude est accessible cliquer ici .
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juin 4, 2022 | Posted by admin Lors du congrès de l’EULAR 2022 qui s’est déroulé du 1 au 4 juin 2022 à Copenhague , 1 abstract a été accepté pour une présentation :
▫ DETERMINANTS OF CLINICALLY IMPORTANT WORSENING IN EARLY AXIAL SpA: ANALYSIS OF THE DESIR COHORT OVER 5 YEARS. F. Hamitouche, S. Kumaradev, D. Van der Heijde, S. Ramiro, A. Sepriano, A. Molto.
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avril 11, 2022 | Posted by admin Un nouvel article scientifique intitulé «Socio-demographic determinants in the evolution of pain in inflammatory rheumatic diseases: results from ESPOIR and DESIR cohorts» a été publié dans le journal Observational Study Rheumatology (Oxford).
Kumaradev S, Roux C, Sellam J, Perrot S, Pham T, Dugravot A, Molto A.
Objective:
To determine whether socio-demographic factors are associated with heterogeneity in pain evolution in inflammatory rheumatic diseases (IRDs) after accounting for disease-specific characteristics in a system with universal health care.
Methods:
This analysis included the data from two prospective observational cohorts of early IRDs (ESPOIR for early RA and DESIR for early SpA). Data on pain was measured, respectively, on 13 and 9 occasions spanning 10 and 6 years of follow-up using the Short-Form 36 bodily pain score for 810 participants of ESPOIR, and 679 participants of DESIR. Linear mixed models were used to characterize differences in pain evolution as a function of age (tertiles), sex, ethnicity, education, marital, and professional status, after accounting for disease-related, treatment, lifestyle, and health factors.
Results:
While transitioning from early (disease duration ≤6 months for RA and ≤3 years for SpA) to long-standing disease, differences in pain evolution emerged as a function of age (P < 0.001), sex (P = 0.050), and ethnicity (P = 0.001) in RA, and as a function of age (P = 0.048) in SpA; younger age, males, and Caucasians exhibited lower pain in the latter phases of both diseases. Highly educated participants (RA, β = -3.8, P = 0.007; SpA, β = -6.0, P < 0.001) for both diseases, and Caucasians (β = -5.6, P = 0.021) for SpA presented with low pain early in the disease, with no changes throughout disease course.
Conclusion:
Being older, female, non-Caucasian and having lower education was found to be associated with worse pain in early and/or long-standing IRDs, despite universally accessible health-care. Early identification of at-risk populations and implementation of multidisciplinary strategies may reduce patient-reported health outcome disparities.
Trial registration registrations: ESPOIR: ClinicalTrials.gov, www.clinicaltrials.gov, NCT03666091. DESIR: ClinicalTrials.gov, www.clinicaltrials.gov, NCT01648907.
Keywords: pain evolution; pain outcome; rheumatoid arthritis; socio-demographic factors; spondyloarthritis.
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février 12, 2022 | Posted by admin Un nouvel article scientifique intitulé «Factors associated with drug-free remission at 5-year in early onset axial spondyloarthritis patients: Data from the DESIR cohort» a été publié dans le journal Joint Bone Spine.
Adeline Ruyssen-Witrand, Vanessa Rousseau, Agnès Sommet, Philippe Goupille, Yannick Degboe, Arnaud Constantin.
Objectives:
To assess the frequency of patients in drug-free remission at 5 years in a cohort of early axial SpA, and the factors associated with this remission.
Methods:
Patients: patients included in the DESIR (DEvenir des Spondyloarthropathies Indifférenciées Récentes) cohort undergoing the 5-year visit were selected for this analysis. Definition of 5-year drug-free remission: (1) all patients in ASAS partial remission and/or ASDAS<1.3 at 5 year visit and (2) taking no disease modifying anti-rheumatic drugs at the 5-year visit and (3) with an ASAS-NSAID score≤25 at the 5-year visit.
Data analysis:
the proportion of patients in drug-free remission was described. The association between demographic, clinical, biological and imaging characteristics and drug-free remission at 5 years was assessed by logistic regression.
Results:
Of the 412 patients included in this analysis, 73 (18%) were in drug-free remission at the 5-year visit. The baseline clinical factors associated with the chances to be in drug-free remission at the 5-year visit were symptom duration (OR=0.66 [95%CI%: 0.44-0.97]), lower HAQ-AS score (OR=0.32 [0.12-0.78]), lower ASDAS score (OR=0.55 [95%CI: 0.34-0.86]), ASAS-NSAID score (OR=0.91 [95%CI: 0.82-0.99]). Furthermore, anti-TNF use (OR=0.20 [95%CI: 0.08-0.42]) during the follow-up decreased the chances of being in 5-year drug-free remission.
Conclusion:
The probability of being in drug free remission at 5 year when beginning an axial SpA is low and is associated with lower baseline disease activity and functional scores, while starting an anti-TNF is associated with poor chances of later being in drug-free remission. NCT01648907.
Keywords: Anti-TNF; Remission; Spondyloarthritis; Therapy.
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