Abstract
Objectives
Chronic non-bacterial osteomyelitis (CNO) or chronic recurrent multifocal osteomyelitis (CRMO) is an autoinflammatory disorder characterized by sterile bone osteolytic lesions. ...The aim of this study was to evaluate the demographic data and clinical, instrumental and therapeutic features at baseline in a large series of CNO/CRMO patients enrolled in the Eurofever registry.
Methods
A web-based registry collected retrospective data on patients affected by CRMO/CNO. Both paediatric and adult centres were involved.
Results
Complete baseline information on 486 patients was available (176 male, 310 female). The mean age of onset was 9.9 years. Adult onset (>18 years of age) was observed in 31 (6.3%) patients. The mean time from disease onset to final diagnosis was 1 year (range 0-15). MRI was performed at baseline in 426 patients (88%), revealing a mean number of 4.1 lesions. More frequent manifestations not directly related to bone involvement were myalgia (12%), mucocutaneous manifestations (5% acne, 5% palmoplantar pustulosis, 4% psoriasis, 3% papulopustular lesions, 2% urticarial rash) and gastrointestinal symptoms (8%). A total of 361 patients have been treated with NSAIDs, 112 with glucocorticoids, 61 with bisphosphonates, 58 with MTX, 47 with SSZ, 26 with anti-TNF and 4 with anakinra, with a variable response.
Conclusion
This is the largest reported case series of CNO patients, showing that the range of associated clinical manifestations is rather heterogeneous. The study confirms that the disease usually presents with an early teenage onset, but it may also occur in adults, even in the absence of mucocutaneous manifestations.
Objective
Mevalonate kinase deficiency (MKD) is a rare metabolic disease characterized by recurrent inflammatory episodes. This study was undertaken to describe the genotype, phenotype, and response ...to treatment in an international cohort of MKD patients.
Methods
All MKD cases were extracted from the Eurofever registry (Executive Agency for Health and Consumers project no. 2007332), an international, multicenter registry that retrospectively collects data on children and adults with autoinflammatory diseases.
Results
The study included 114 MKD patients. The median age at onset was 0.5 years. Patients had on average 12 episodes per year. Most patients had gastrointestinal symptoms (n = 112), mucocutaneous involvement (n = 99), lymphadenopathy (n = 102), or musculoskeletal symptoms (n = 89). Neurologic symptoms included headache (n = 43), cerebellar syndrome (n = 2), and mental retardation (n = 4). AA amyloidosis was noted in 5 patients, almost twice as many as expected from findings in previous cohorts. Macrophage activation syndrome occurred in 1 patient. Patients were generally well between attacks, but 10–20% of the patients had constitutional symptoms, such as fatigue, between fever episodes. Patients with p.V377I/p.I268T compound heterozygosity had AA amyloidosis significantly more often. Patients without a p.V377I mutation more often had severe musculoskeletal involvement. Treatment with nonsteroidal antiinflammatory drugs relieved symptoms. Steroids given during attacks, anakinra, and etanercept appeared to improve symptoms and could induce complete remission in patients with MKD.
Conclusion
We describe the clinical and genetic characteristics of 114 MKD patients, which is the largest cohort studied so far. The clinical manifestations confirm earlier reports. However, the prevalence of AA amyloidosis is far higher than expected.
The rare autoinflammatory disease mevalonate kinase deficiency (MKD, which includes HIDS and mevalonic aciduria) is caused by recessive, pathogenic variants in the
gene encoding mevalonate kinase. ...Deficiency of this enzyme decreases the synthesis of isoprenoid lipids and thus prevents the normal post-translational prenylation of small GTPase proteins, which then accumulate in their unprenylated form. We recently optimized a sensitive assay capable of detecting unprenylated Rab GTPase proteins in peripheral blood mononuclear cells (PBMCs) and showed that this assay distinguished MKD from other autoinflammatory diseases. We have now analyzed PBMCs from an additional six patients with genetically-confirmed MKD (with different compound heterozygous
genotypes), and compared these with PBMCs from three healthy volunteers and four unaffected control individuals heterozygous for the commonest pathogenic variant,
. We detected a clear accumulation of unprenylated Rab proteins, as well as unprenylated Rap1A by western blotting, in all six genetically-confirmed MKD patients compared to heterozygous controls and healthy volunteers. Furthermore, in the three subjects for whom measurements of residual mevalonate kinase activity was available, enzymatic activity inversely correlated with the extent of the defect in protein prenylation. Finally, a heterozygous
patient presenting with autoinflammatory symptoms did not have defective prenylation, indicating a different cause of disease. These findings support the notion that the extent of loss of enzyme function caused by biallelic
variants determines the severity of defective protein prenylation, and the accumulation of unprenylated proteins in PBMCs may be a sensitive and consistent biomarker that could be used to aid, or help rule out, diagnosis of MKD.
Aim
Cryopyrin‐associated periodic syndromes (CAPS) encapsulate three auto‐inflammatory conditions, ranging in severity from mild (familial cold auto‐inflammatory syndrome: FCAS), moderate ...(Muckle‐Wells syndrome: MWS) and severe (neonatal onset multi‐inflammatory disorder: NOMID). We aimed to describe the epidemiology, clinical features and outcomes of Australian children and adults with CAPS.
Methods
Patients were identified and clinical data collected through a questionnaire sent during 2012–2013 to clinicians reporting to the Australian Paediatric Surveillance Unit and subscribing to the Australasian Societies for Allergy/Immunology, Rheumatology and Dermatology.
Results
Eighteen cases of CAPS were identified (8 NOMID; 8 MWS, 2 FCAS); 12 in children <18 years of age. The estimated population prevalence of CAPS was 1 per million persons. Diagnostic delay was frequent, particularly in those with milder phenotypes (median diagnostic delay in MWS/FCAS 20.6 years compared with NOMID 2.1 years; P = 0.04). Common presenting features included urticaria (100%), periodic fever (78%), arthralgia (72%) and sensorineural hearing loss (61%). Almost all (90%) MWS patients had a family member similarly affected compared with none in the NOMID group (P = 0.004). A significant proportion of patients on anti‐interleukin (IL)‐1 therapy (n = 13) no longer had systemic inflammation. Only 50% with sensorineural hearing loss had hearing restored on anti‐IL‐1 therapy.
Conclusions
Although CAPS are rare, patients often endured prolonged periods of systemic inflammation. This is despite almost all MWS patients having family members with similar symptoms and children with NOMID presenting with chronic infantile urticaria associated with multi‐system inflammation. Hearing loss in NOMID/MWS was frequent, and reversible in only 50% of cases.
Early recognition and treatment of juvenile idiopathic arthritis (JIA) can prevent joint damage and minimize side effects of medication. The balance between proinflammatory and antiinflammatory ...mechanisms is known to be important in JIA, and we therefore investigated T cell subsets including Th cells, autoaggressive Th17 cells, and regulatory T cells (Treg), including a novel Treg subset in peripheral blood (PB) and synovial fluid (SF) of patients with JIA.
Fifty children with JIA were enrolled in our study. Frequency, phenotype, and function of T lymphocytes in PB and SF were characterized using flow cytometry. Migration capabilities of PB and SF cells were compared.
Synovial T cells showed different phenotype and function compared with PB T cells, with an increased proportion of memory T cells, expression of CCR4, CCR5, CXCR3, interleukin 23R, and an increased ratio of Th17 to Treg. Although Treg were increased in SF compared with the PB, we found a significant decrease in the numbers of peptidase inhibitor 16 (PI16)+ Treg in active joints compared with peripheral blood. Coexpression of CCR4 and CCR6 was reduced on PI16+ Treg in PB and SF of patients with JIA compared with healthy children, however the ability of these cells to migrate toward their ligands was unaffected.
This is a comprehensive characterization of novel PI16+ Treg and Th17 cells in matched blood and synovial fluid samples of patients with JIA. Despite an increased number of Treg within the inflamed joint, lower numbers of PI16+ Treg but high numbers of Th17 cells might contribute to the inability to control disease.
Objective
Neurologic involvement has been reported to occur in infants with neonatal lupus erythematosus (NLE), although the significance of these findings is unknown. The purpose of this study was ...to determine if hydrocephalus/macrocephaly is a manifestation of NLE.
Methods
Infants from the Hospital for Sick Children in Toronto, Canada whose mothers had anti‐Ro antibodies were followed prospectively. A total of 87 infants were seen in the study period (1999–2004). The maternal autoantibody status of all infants was documented, and all infants underwent full clinical examination at each visit.
Results
Of the 87 infants, 47 had NLE. Five of the 47 infants with NLE and 2 of the healthy infants had hydrocephalus, resulting in a prevalence of 8.0% (95% confidence interval 4.0–15.0%) in the entire cohort. This is significantly higher than the prevalence in the general population of 0.048–0.081%. Head circumference measurements of infants in the Toronto cohort were largest between 12–24 months of age (Z score difference = 0.71, P = 0.008).
Conclusion
We suggest that hydrocephalus and macrocephaly are manifestations of NLE and that infants born to mothers with anti‐Ro antibodies should be carefully monitored for hydrocephalus as part of their routine physical examination.
In 2012, a European initiative called Single Hub and Access point for paediatric Rheumatology in Europe (SHARE) was launched to optimise and disseminate diagnostic and management regimens in Europe ...for children and young adults with rheumatic diseases. Juvenile localised scleroderma (JLS) is a rare disease within the group of paediatric rheumatic diseases (PRD) and can lead to significant morbidity. Evidence-based guidelines are sparse and management is mostly based on physicians' experience. This study aims to provide recommendations for assessment and treatment of JLS. Recommendations were developed by an evidence-informed consensus process using the European League Against Rheumatism standard operating procedures. A committee was formed, mainly from Europe, and consisted of 15 experienced paediatric rheumatologists and two young fellows. Recommendations derived from a validated systematic literature review were evaluated by an online survey and subsequently discussed at two consensus meetings using a nominal group technique. Recommendations were accepted if ≥80% agreement was reached. In total, 1 overarching principle, 10 recommendations on assessment and 6 recommendations on therapy were accepted with ≥80% agreement among experts. Topics covered include assessment of skin and extracutaneous involvement and suggested treatment pathways. The SHARE initiative aims to identify best practices for treatment of patients suffering from PRDs. Within this remit, recommendations for the assessment and treatment of JLS have been formulated by an evidence-informed consensus process to produce a standard of care for patients with JLS throughout Europe.
The objective of this work was to develop and validate a set of clinical criteria for the classification of patients affected by periodic fevers. Patients with inherited periodic fevers (familial ...Mediterranean fever (FMF); mevalonate kinase deficiency (MKD); tumour necrosis factor receptor-associated periodic fever syndrome (TRAPS); cryopyrin-associated periodic syndromes (CAPS)) enrolled in the Eurofever Registry up until March 2013 were evaluated. Patients with periodic fever, aphthosis, pharyngitis and adenitis (PFAPA) syndrome were used as negative controls. For each genetic disease, patients were considered to be 'gold standard' on the basis of the presence of a confirmatory genetic analysis. Clinical criteria were formulated on the basis of univariate and multivariate analysis in an initial group of patients (training set) and validated in an independent set of patients (validation set). A total of 1215 consecutive patients with periodic fevers were identified, and 518 gold standard patients (291 FMF, 74 MKD, 86 TRAPS, 67 CAPS) and 199 patients with PFAPA as disease controls were evaluated. The univariate and multivariate analyses identified a number of clinical variables that correlated independently with each disease, and four provisional classification scores were created. Cut-off values of the classification scores were chosen using receiver operating characteristic curve analysis as those giving the highest sensitivity and specificity. The classification scores were then tested in an independent set of patients (validation set) with an area under the curve of 0.98 for FMF, 0.95 for TRAPS, 0.96 for MKD, and 0.99 for CAPS. In conclusion, evidence-based provisional clinical criteria with high sensitivity and specificity for the clinical classification of patients with inherited periodic fevers have been developed.
Abstract
Juvenile systemic sclerosis (JSSc) is a rare disease of childhood and currently no international consensus exists with regard to its assessment and treatment. This SHARE (Single Hub and ...Access point for paediatric Rheumatology in Europe) initiative, based on expert opinion informed by the best available evidence, provides recommendations for the assessment and treatment of patients with JSSc with a view to improving their outcome. Experts focused attention not only on the skin assessment but also on the early signs of internal organ involvement whose proper treatment can significantly affect the long-term outcome. A score for disease severity is proposed in order to perform a structured assessment of outcome over time but a validation in a wider patient population is recommended. Finally, a stepwise treatment approach is proposed in order to unify the standard of care throughout Europe with the aim to reduce morbidity and mortality in this disease.
The objective of this review was to investigate the available qualitative evidence to enhance understanding of the experiences of children and young adults living with juvenile idiopathic arthritis, ...and their carers, in any setting.
Juvenile idiopathic arthritis is the most common chronic rheumatic disease in childhood. Despite the availability of effective treatments, persistent pain, growth retardation, physical disability, and psychological problems can occur. This may reduce the quality of life for patients with juvenile idiopathic arthritis by negatively affecting their family, educational, and social well-being. Patient-centered management and care for patients with juvenile idiopathic arthritis requires increasing attention to their self-reported quality of life and experiences, in addition to clinically measured disease activity. Furthermore, caring for children with juvenile idiopathic arthritis may have negative impacts on the lives of their carers and families. The experiences of carers have been poorly understood and studied. This review describes experiences and perspectives from patients and carers in order to inform the needs of families throughout their juvenile idiopathic arthritis journey.
Studies describing the experiences of patients aged <21 years who have been diagnosed with juvenile idiopathic arthritis according to the International League of Associations for Rheumatology criteria, as well as the experiences of their carers, have been considered.
A comprehensive search using PubMed, CINAHL, Embase, PsycINFO, Web of Science, and Google Scholar, as well as relevant conference proceedings of the American College of Rheumatology (2018-2019), the European Pediatric Rheumatology Congress 2018, the European League Against Rheumatism (2018-2019), and the Asia Pacific League of Associations for Rheumatology (2018-2019), was undertaken in December 2020 to identify pertinent published and unpublished studies. Studies published in English from 2001 to 2020 were included. The JBI approach to study selection, critical appraisal, data extraction, and data synthesis was used.
Ten studies were included in this review. A total of 61 findings were extracted and aggregated to form 12 categories. From the 12 categories, five synthesized findings were developed: i) Self-management of juvenile idiopathic arthritis requires pain management, medication management, and the acquisition of knowledge and professional support; ii) A promising relationship with health care professionals but unbalanced access to services; iii) Parental financial burden and their adjustment to maintain family happiness; iv) Patients and parents support the web-based approach to communicate and develop self-management skills and acknowledge the importance of clinical trials; v) Desire to live a normal life without prejudice from school, social settings, and the workplace.
This review has provided a comprehensive overview of experiences and perceptions of patients juvenile idiopathic arthritis and their parents. It is important to understand what they need to know about the disease. This review also highlights the importance of appropriate web-based programs, career counseling, infrastructures, and school facilities. Findings in this review can guide future policy and practice in order to improve care for families and children with juvenile idiopathic arthritis. Further research is required to develop management strategies for medication intolerance and to evaluate the longitudinal benefits of relevant juvenile idiopathic arthritis programs.
PROSPERO CRD42019133165.
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