Prevalence of positive tuberculin skin test in a Brazilian sample of rheumatoid arthritis and spondylarthritis patients

SUMMARY OBJECTIVE: Patients with rheumatic diseases have an increased risk of infections, especially tuberculosis. In this study, we aimed to recognize the positivity rate of tuberculosis skin test in patients with rheumatoid arthritis and spondyloarthritis and the characteristics of the patients with positive results. METHODS: Retrospective study of tuberculosis skin test results in patients followed from 2004 to 2021 in a single rheumatology unit. Data related to clinical and epidemiological features, along with treatment information referring to the period in which the tuberculosis skin test was performed, were collected from patients' charts. RESULTS: A total of 723 tests were identified (448 tests in 269 rheumatoid arthritis patients and 275 in 174 spondyloarthritis patients). In the rheumatoid arthritis sample, 31/275 (11.5%) individuals had positive tests, and in the spondyloarthritis, 38/174 (21.8%) had positive tests. In the rheumatoid arthritis sample, patients with positive tuberculosis skin tests used a higher dose of methotrexate than those with negative results (median of 25 mg/week versus median of 20 mg/week respectively; p=0.02). In the spondyloarthritis sample, tuberculosis skin test positivity was associated with alcohol ingestion (13.1% versus 2.9% in users and non-users respectively; p=0.02) and sulfasalazine use (15.7% of positivity in users versus 5% in non-users; p=0.01). CONCLUSION: The tuberculosis skin test-positive prevalence in rheumatoid arthritis was lower than in the spondyloarthritis sample. Patients with rheumatoid arthritis using a higher dosage of methotrexate or with spondyloarthritis using sulfasalazine had more frequency of tuberculosis skin test positivity and should be carefully followed by the attending physician in order to avoid the appearance of full-blown tuberculosis.

Qualidade de vida em pacientes com espondiloartrites: análise comparativa entre as formas axial, periférica pura e mista / Quality of life in spondyloarthritis: a comparison among axial, peripheric and mixed forms

Introdução: As espondiloartrites são doenças musculoesqueléticas crônicas que podem ter envolvimento axial, periférico ou misto. Devido ao grande comprometimento físico esta doença causa importante redução da qualidade de vida, mas não se sabe se isto acontece de igual maneira nas 3 formas. Objetivo: Estudar a associação entre qualidade de vida e formas de espondiloartrites. Método: Coletaram-se dados acerca de epidemiologia, perfil clínico, comorbidades e de qualidade de vida (através do SF-12 ou Short Form Health Survey­12 questions). Resultados: Incluíram-se 120 indivíduos: 60 EpA e 60 controles. O SF-12 físico tinha mediana de 38,05 para espondiloartrites e 55,1 para controle (p<0,0001). No quesito mental as medianas foram de 42,1 e 50,1 com p=0,04. Não foi possível demonstrar diferenças nos subgrupos de espondiloartrites, tanto no aspecto físico como mental (p=0,33 e 0,30 respectivamente). Conclusão: Existem diferenças significativas na qualidade de vida entre espondiloartrites e controles, mas não entre os subgrupos das espondiloartrites.

Introduction: Spondyloarthritis are chronic musculoskeletal diseases divided as axial, peripherical and mixed diseases. Due to a great physical involvement, it reduces patients' quality of life, but it is unknown how the 3 forms of the disease behave in such context. Objective: To study the quality of life association with spondyloarthritis forms. Methods: Data collection included: epidemiologic data, clinical profile, and quality of life data evaluated through the SF-12 (Short Form Health Survey­12 questions). Results: About 120 individuals were included: 60 spondyloarthritis and 60 controls. The physical SF-12 showed median of 38.05 for spondyloarthritis and 55.1 for controls (p<0.0001). The medians in mental SF-12 were 42.1 and 50.1 with p= 0.04. No differences in quality of life in the spondyloarthritis subgroups could be detected (with p=0.33 and 0.30 for physical and mental aspects). Conclusion: There was a significant difference in quality of life between spondyloarthritis sample and controls but not among the spondyloarthritis subgroups.

First-line biologic therapy with tumor necrosis factor inhibitors for psoriatic arthritis: a prospective observational study

ABSTRACT BACKGROUND: Psoriatic arthritis (PsA) is a chronic inflammatory disease that affects multiple joints. It is associated with psoriasis and treated with synthetic and biologic drugs. OBJECTIVE: The objective of this study was to assess the outcomes of patients who received biologic therapy with tumor necrosis factor (TNF) inhibitors in terms of effectiveness, safety, functionality, and quality of life. DESIGN AND SETTING: A prospective observational study was performed at a single center in Belo Horizonte, Brazil. METHODS: Patients with PsA who received their first TNF inhibitor treatment were followed up for 12 months. Disease activity was measured using the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) and Clinical Disease Activity Index (CDAI). Functionality was measured using the Health Questionnaire Assessment (HAQ), and quality of life was evaluated using the European Quality of Life Five Dimensions (EQ-5D). Multiple linear regression was used to identify predictors of the clinical response at 12 months. RESULTS: A total of 143 patients treated with adalimumab or etanercept were evaluated. Most of the clinical measures were significantly improved at 12 months. However, 31%-51% of the patients did not achieve good clinical control. No differences were observed between adalimumab and etanercept, except for poor functionality at 12 months among patients treated with etanercept. The main predictors of a worse clinical response were female sex, etanercept use, poor functionality, or lower quality of life at baseline. The main adverse reactions were alopecia, headache, injection site reaction, sinusitis, flu, dyslipidemia, and infections. CONCLUSION: TNF inhibitor therapy was effective and safe. However, despite improvements in clinical measures, most patients did not achieve satisfactory control of the disease.

Enthesitis-related arthritis: monitoring and specific tools

Abstract Objective: In this article, the authors aimed to review the different tools used in the monitoring of enthesitis-related arthritis. Sources: The authors performed a literature review on PubMed, Google Scholar, and Scopus databases. The dataset included the original research and the reviews including patients with enthesitis-related arthritis or juvenile spondylarthritis up to October 2020. Summary of finding: Enthesitis-related arthritis is a category of juvenile idiopathic arthritis. It is characterized by the presence of enthesitis, peripheral arthritis, as well as axial involvement. The only validated tool for disease activity measurement in juvenile idiopathic arthritis is the Disease Activity Score: It has proven its reliability and sensitivity. Nevertheless, due to an absence of validated evaluation tools, the extent of functional impairment, as well as the children and parents' perception of the disease, could not be objectively perceived. Despite the great progress in the field of imaging modalities, the role they play in the evaluation of disease activity is still controversial. This is partially due to the lack of validated scoring systems. Conclusion: Further work is still required to standardize the monitoring strategy and validate the outcome measures in enthesitis-related arthritis.

Clinical and laboratory features of patients with undifferentiated spondyloarthritis and ankylosing spondylitis

ABSTRACT Background: The terms Spondyloarthritis and spondyloarthropathy (Spa) are used to define a group of diseases with related clinical characteristics and genetics. Aim: To report the clinical and demographic characteristics of ankylosing spondylitis (AS) and undifferentiated spondyloarthritis (USpA) and to evaluate the frequency of cyclic citrullinated peptide antibody (anti-CCP) positivity. Material and Methods: Two hundred patients with USpA or AS, 100 control patients with a diagnosis of rheumatoid arthritis (RA) and 100 healthy volunteers were included. For each patient, their detailed medical histories, physical examination, whole blood counts, erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), anti-CCP, routine biochemical tests, and HLA-B27 test results were evaluated. ASDAS and BASDAI scores and morning stiffness were used to evaluate the disease activity. Results: The presenting symptom of 73 (73%) patients in the AS group and 58 (58%) patients in the USpA group was pain in axial joints. A family history of Spa was positive in 32 patients from both groups (32%). A positive HLA-B27 was found in 55% of the AS group and 25% of the USpA group (p < 0.01 for the difference between groups). The frequency of positive HLA-B27 was significantly higher in individuals with a family history of SpA (p = 0.022). A positive Anti-CCP was found in 56% of the RA group, a significantly higher frequency compared with other groups (p < 0.001). The frequency of positive Anti-CCP in patients in AS (9%) and USpA (6%) was significantly higher than in healthy controls (p < 0.001). Conclusions: The frequency of anti-CCP positivity was higher in SpA patients than in healthy controls.

Introducción: Los términos espondiloartritis y espondiloatropatia (Spa) se usan para definir un grupo de enfermedades con características y genética relacionadas. Objetivo: Informar las características clínicas y demográficas de la espondilitis anquilosante (EA) y espondiloartritis indiferenciada (USpA) - y para evaluar la frecuencia de positividad del anticuerpo péptido citrulinado cíclico (anti-CCP). Material y Métodos: En este estudio observacional se incluyeron doscientos pacientes con USpA y EA, 100 pacientes control con diagnóstico de artritis reumatoide (AR) y 100 voluntarios sanos. Se evaluó la historia clínica, exámen físico, recuentos sanguíneos completos, velocidad de sedimentación globular (ESR), proteína C reactiva (PCR), anti-CCP, pruebas bioquímicas de rutina y resultados de la prueba HLA-B27. Para evaluar la actividad de la enfermedad se utilizaron las puntuaciones ASDAS y BASDAI y la rigidez matutina. Resultados: El síntoma inicial de 73 (73%) pacientes en el grupo de EA y 58 (58%) pacientes en el grupo de USpA fue dolor en las articulaciones axiales. Treinta y dos pacientes de cada grupo (32%) tenían antecedentes familiares de SPA. HLA-B27 fue positivo en el 55% del grupo AS y el 25% del grupo USpA con una diferencia significativa entre los dos grupos (p < 0.001). La frecuencia de positividad HLA-B27 fue mayor en individuos con historia familiar de SpA (p = 0,02). Se encontraron anti-CCP positivos en el 56% del grupo con AR, una frecuencia significativamente mayor en comparación con otros grupos (p < 0,01). La frecuencia de anti-CCP positivo fue mayor los pacientes con AS (9%) y USpA (6%) que en el grupo sano (p < 0,001). Conclusiones: La frecuencia de positividad anti-CCP fue mayor en los grupos de SpA en comparación con los grupos control sanos.

Doença de Whipple - uma condição não rara que pode mimetizar espondiloartrite e piora com o uso de imunobiológico anti-TNF / Whipple's Disease - an uncommon condition that can mimic spondyloarthritis and worsens with the use of anti-TNF immunobiological

A doença de Whipple é uma condição rara causada pela Tropheryma whipplei. Sua apresentação articular mais comum é a artralgia migratória de grandes articulações. Mais raramente cursa com oligoartrite ou poliartrite, que podem preceder as manifestações gastrointestinais em vários anos. Cursa com diarréia e má absorção, podendo também causar derrame pleural e linfonodomegalias. Alguns pacientes podem apresentar sacroiliite, uveíte e confundir com espondiloartrite, e neste contexto o uso de anti-TNF pode ser iniciado. Os autores relatam o caso de um paciente masculino, 50 anos, com quadro compatível com espondiloartrite em que o início do infliximabe determinou piora clínica e após reavaliação confirmou tratar-se de doença de Whipple.

Whipple's disease is a rare condition caused by Tropheryma whipplei. Its most common articular presentation is migratory arthralgia of large joints. More rarely it courses with oligoarthritis or polyarthritis, which can precede the gastrointestinal manifestations in several years. It causes diarrhea and malabsorption, and may also cause pleural effusion and lymphadenopathy. Some patients may present with sacroiliitis, uveitis and confuse with spondyloarthritis, and in this context the use of anti-TNF may be initiated. The authors report the case of a 50-year-old male patient with a spondyloarthritis-compatible condition in which the onset of infliximab caused clinical worsening and after reassessment confirmed that it was Whipple's disease.

Frecuencia de alelos HLA de clase I y II en una cohorte de pacientes con espondiloartritis provenientes del noroccidente colombiano / Frequency of HLA alleles class I and II in a cohort of northwestern Colombian patients with spondyloarthritis

Introducción. Las espondiloartritis son enfermedades reumatológicas crónicas que afectan el esqueleto axial y las articulaciones periféricas, con varias manifestaciones extraarticulares. La asociación con el HLA-B27 sigue siendo uno de los vínculos más fuertes conocidos entre estas entidades y el complejo mayor de histocompatibilidad; sin embargo, la distribución mundial del HLA-B27 varía considerablemente y se han descrito asociaciones con genes no HLA-B27. Objetivo. Conocer la frecuencia de alelos HLA de clase I y II en pacientes con espondiloartritis provenientes del noroccidente colombiano y su frecuencia en las manifestaciones clínicas y radiológicas específicas. Materiales y métodos. Se condujo un estudio descriptivo, observacional, de corte transversal, retrospectivo y prospectivo entre 2005 y 2008 de 56 pacientes colombianos con espondiloartritis. Se identificaron los alelos correspondientes a los loci HLA de clase I y II (HLA-B, HLADQB1 y HLADRB). Se analizó su frecuencia con las manifestaciones clínicas axiales, periféricas, extraarticulares y radiológicas. Resultados. Se encontró una baja frecuencia de HLA-B27 en la población total (50 %), aunque fue el alelo más frecuente, junto con HLA-DRB4*01 (35,7 %) y HLA-DQB1*0501 (28,6 %), en todos los pacientes en general y en cada una de las manifestaciones clínicas y radiológicas. Se resalta la alta frecuencia de HLA-B27 y HLA-DRB4*01 (64,3 %) en pacientes con dactilitis, hallazgo novedoso sin previa descripción. Conclusión. Los alelos HLA-B27, HLA-DRB4*01 y HLA-DQB1*0501 fueron frecuentes en los diferentes subtipos de espondiloartritis y en las manifestaciones clínicas axiales, periféricas y extraarticulares específicas, además de la sacroiliítis radiológica.

Introduction. Spondyloarthritis is a chronic rheumatic disease that affect the axial skeleton and peripheral joints, along with several extra-articular manifestations. The association with HLA-B27 remains one of the strongest known links between these entities and the major histocompatibility complex. However, the global distribution of HLA-B27 varies considerably and furthermore, associations with non-HLA-B27 genes have been described. Objective. The frequency of HLA class I and II was determined in a population of patients with spondyloarthritis with respect to detection in the clinical setting and by radiology. Materials and methods. A descriptive, observational, cross-sectional, retrospective and prospective study was conducted in 56 patients from northwestern Colombia. Each was diagnosed with spondyloarthritis between 2005 and 2008. In each case, alleles were identified for the loci HLA class I and II (HLA-B; HLADQB1 and HLADRB). The frequency of these alleles in the axial, peripheral, extraarticular and radiological manifestations. Results.The frequency of HLA-B27 was 50% overall, and it was the most frequent allele. The two other alleles were HLA.DRB4*01 at 35.7% and HLA-DQB1*0501 at 28.6%, as detected in each of the clinical and radiological manifestations. A high frequency of HLA-B27 and HLA-DRB4*01 (64.3%) was noted in patients with dactylitis. Conclusion. The alleles HLA-B27, HLA-DRB4*01 and HLA-DQB1*0501 were common in the different subtypes of spondyloarthritis and were frequent in the specific clinical axial, peripheral and extraarticular clinical manifestations, as well as radiological sacroiliitis.

New Diagnostic and Classification Criteria of Chronic Pain Diseases: Rheumatoid Arthritis, Fibromyalgia and Spondylarthritis / 고신대학교의과대학학술지

Rheumatoid arthritis, fibromyalgia, and spondylarthritis are important diseases causing chronic pain and disability in rheumatologic areas. The classification and diagnostic criterias of them were made on the basis of clinical features, radiologic and laboratory findings and have been used decades ago. According to the development of new knowledge about etiology and pathogenesis of rheumatic diseases, the need for new criteria has been increased. In recent years, new criteria for these diseases have been developed, and they allow the early assignment of diseases and early start of therapy. In this review, the author summarizes recent advances and changes in diagnosis of rheumatoid arthritis, fibromyalgia, and spondylarthritis.