Reactive arthritis: update 2018.

At this time, reactive arthritis (ReA) is considered to be part of the spectrum of the spondyloarthritis, previously known as Reiter's syndrome, and refers to an infection induced systemic illness, characterized by a sterile synovitis occurring in a genetically predisposed individual, secondary to an infection localized in a distant organ/system, but also accompanied with multiple extra articular manifestations.

Potential risk factors for reactive arthritis and persistence of symptoms at 2 years: a case-control study with longitudinal follow-up.

The objective of the study is to determine the risk factors for the development of reactive arthritis (ReA) and examine the factors associated with the persistence of symptoms. Patients with a new diagnosis of ReA and controls with a gastrointestinal (GI), urogenital, or sexually transmitted infection in the 3-6 months prior to study entry were prospectively enrolled in Guatemala City. ReA patients fulfilled the Assessment in Spondyloarthritis International Society criteria for peripheral spondyloarthropathy (SpA). Patients underwent history, examination, Achilles tendon ultrasound, and blood draw. Human leukocyte antigen (HLA) type and serum biomarkers were measured. t tests and nonparametric equivalents were used to examine the association of clinical, laboratory, and imaging factors with ReA. Patients were contacted 2 years later to assess for persistence of symptoms. Study subjects included patients with ReA (N = 32) and controls (N = 32). ReA patients were most frequently infected in April whereas controls were most frequently infected in August. Two ReA patients and two controls were HLA-B27-positive. Serum cathepsin K and C-reactive protein were higher in ReA patients compared to controls (p = 0.03 for both), while total cholesterol and low-density lipoprotein were lower (p = 0.008 and 0.045, respectively). Among those with ReA, 15 (47%) patients had continued symptoms at 2 years. These patients had a lower matrix metalloproteinase-3 level at diagnosis than patients for whom ReA resolved (p = 0.004). HLA-B27 was not associated with development of ReA in Guatemala; however, the month of infection was associated with ReA. The most striking finding was the persistence of arthritis at 2 years in nearly half of the patients.

Poncet's disease after the intravesical instillation of Bacillus Calmette-Guérin (BCG): a case report.

BACKGROUND: Poncet's disease is a rare syndrome characterized by articular impairment in a form of rare tuberculid. One of the theories of its cause involves an autoimmune response induced by the intravesical administration of the Calmette-Guerin Bacillus or the treatment of bladder carcinoma. Furthermore, there may be an appearance of oligoarticular or polyarticular arthritis, beginning 1-3 months after the start of therapy. Few physicians know the disease and the literature related to that syndrome is scarce and restricted to case reports, which contributes to its under diagnosis. CASE PRESENTATION: Female patient, 64 years old, Caucasian, in whom was noticed firstly dark urine, without haematuria or dysuria. Later felt also colic pain in the hypogastric region. Microscopically, the conclusive diagnosis was a high grade non-invasive papillary urothelial carcinoma. Thereupon, the treatment of the tumour began with transurethral resection technique and intravesical instillation of Calmette-Guérin Bacillus as adjuvant treatment. Eight months after the beginning of treatment, the lingering presence of the carcinoma was identified. Nevertheless, arthritis was identified through radiographs, after an increase in the clavicle capitation, right knee and left ankle in bone scintigraphy. Coinciding with the joint manifestations, the patient developed fever and purulent urethral discharge (culture was negative). Therefore, trying to investigate the cause of the arthritis, Purified Protein Derivate was taken, with reactive results. An increase of acute phase reactants was found, with other tests resulting normal: blood chemistry, Complete Blood Count, immunology and serology. Human Leukocyte Antigen typing by polymerase chain reaction revealed the presence of A24/AX, B44, B27, BW4/BW4, DQ7 and DQ5. Consequently, Poncet's disease was the diagnostic conclusion. The treatment with intravesical Calmette-Guérin Bacillus was immediately discontinued. The patient received corticosteroids associated with etoricoxib and isoniazid for 4 months, achieving disappearance of the inflammatory joint signs in 3 months. After 6 months, no joint pain recurrence or other manifestations suggesting active disease had been seen. CONCLUSIONS: Therefore, such diagnosis should be considered when confronted with an osteoarticular clinical picture in patients treated with intravesical Calmette-Guérin Bacillus, especially patients with HLA-B27 (+) and B7 (+), as Poncet's disease is a reactive arthritis.

Association of human leukocyte A, B, and DR antigens in Colombian patients with diagnosis of spondyloarthritis.

There is substantial evidence that non-B27 major histocompatibility complex (MHC) genes are associated with spondyloarthritis (SpA). Studies in Mexican and Tunisian populations demonstrated the association of SpA and human leukocyte antigen (HLA) B15. The purpose of this study was to evaluate the association of HLA-A, B, and DR antigens in a group of Colombian patients with a diagnosis of SpA. A total of 189 patients and 100 healthy subjects were included in the present study. All subjects underwent a complete characterization of HLA alleles A, B, and DR. Of the 189 studied patients, 35 were reactive arthritis (ReA), 87 were ankylosing spondylitis (AS), and 67 undifferentiated SpA (uSpA). According to the Assessment of Spondyloarthritis International Society (ASAS) criteria, 167 were axial SpA (axSpA) and 171 were peripheral SpA (pSpA). 63.8% were men, with a mean age of 35.9 ± 12.7 years. 40.7% (77/189) of patients were HLA-B27 positive of which 52.9% had AS and 42.5% axSpA. 23.2% (44/189) of patients were HLA-B15 positive: 23.8% were uSpA, 12.57% were axSpA, and 11.7% were pSpA. In addition, HLA-DRB1*01 was associated with AS (58.6%) and axSpA (42.5%). Also, HLA-DRB1*04 was present in 62 patients with AS (71.2%) and in 26 with axSpA (15.5%). In this population, we found a strong association between the presence of HLA-B27 and the diagnosis of axSpA and AS, but the HLA-B15 is also significantly associated with all subtypes of the disease, predominantly with pSpA. Additionally, HLA-DR1 and DR4 were associated in a cohort of patients with SpA from Colombia.

[Tuberculous rheumatism "Poncet's disease". Case report]. / Reumatismo tuberculoso "enfermedad de Poncet". Reporte de caso.

BACKGROUND: Deaths due to tuberculosis have reached 2.5 million cases per year worldwide. Poncet's disease is an infrequent form of tuberculosis characterised by a clinical picture of polyarthritis. CLINICAL CASE: A 24-year-old male presented with morning stiffness, arthralgias, bilateral symmetric arthritis of the proximal interphalangeal joints, wrists, knees, ankles, and shoulders, and adenomegalies at the cervical, submandibular, left supraclavicular, axillary and inguinal levels, without fever. Laboratory results were as follows: ESR 44mm/h, C-reactive protein 4.35, normal levels of complement C3 and C4, negative rheumatoid factor and anticyclic citrullinated peptide antibodies, positive antinuclear antibodies with fine speckled pattern (1:320) and cytoplasm (1:160) pattern and negative anti-Smith, -double-stranded DNA, Sjogren's syndrome-antigen A and Sjogren's syndrome-antigen B. Histological report of cervical node tissue revealed granulomatous lesions compatible with tuberculosis. Rheumatoid arthritis and systemic lupus erythematosus were ruled out. Anti-tuberculosis agents were initiated that resolved the clinical picture. Diagnosis of Poncet's disease was confirmed. CONCLUSION: The differential diagnosis between tuberculosis and autoimmune inflammatory joint diseases is a clinical challenge.

Effect of enthesitis on 1505 Brazilian patients with spondyloarthritis.

OBJECTIVE: To analyze the clinical effect of enthesitis in a large Brazilian cohort of patients with spondyloarthritis (SpA). METHODS: A common protocol of investigation was prospectively applied to 1505 patients with SpA in 29 centers in Brazil. Clinical and demographic variables and disease indexes were investigated. The Maastricht Ankylosing Spondylitis Enthesitis Score was used to investigate the enthesitis component. Ankylosing spondylitis was the most frequent disease in the group (65.4%). Others were psoriatic arthritis (18.4%), undifferentiated SpA (6.7%), reactive arthritis (3.3%), and enteropathic arthritis (3.2%). RESULTS: At least 1 affected enthesis was observed in 54% of the patients with SpA, with a mean of 2.12 ± 2.98 entheses affected. According to the clinical presentation, enthesitis was significantly more frequent in patients with axial + peripheral joint involvement compared to isolated axial or peripheral involvement (p < 0.001). There was a statistical association between the presence of enthesites and axial symptoms (buttock pain, cervical pain, and hip pain), and peripheral symptoms (lower limb arthritis, number of painful and swollen joints; p < 0.05). Patients with enthesitis also presented higher mean scores of Bath Ankylosing Spondylitis Functional Index (BASFI; p < 0.001), Bath Ankylosing Spondylitis Disease Activity Index (p < 0.001), and Ankylosing Spondylitis Quality of Life (ASQoL; p < 0.001). Multivariate logistic regression showed that BASFI (p < 0.0001; OR 74.839), ASQoL (p = 0.0001; OR 14.645), and Achilles tendonitis (p = 0.0059; OR 7.593) were associated with work incapacity. CONCLUSION: The clinical presence of enthesitis in this large cohort of patients with SpA was frequent and was associated with a significant increase in disease activity and decline in functional capacity and quality of life.

Clinical features of Poncet's disease. From the description of 198 cases found in the literature.

Poncet's disease (PD) is an entity described as a reactive arthritis due to tuberculous infection elsewhere from the joints. PD existence has been questioned; however, more cases have been reported over the years. Due to its rare nature, little is known about the clinical picture of this disease and no prospective studies had been made to address this issue. We performed a systematic review of the written literature on PD in different databases using the key words "Poncet's disease," "tuberculous rheumatism," and "tuberculous reactive arthritis." Out of 78 articles, 198 patients were included in the analysis, plus our patient. Several characteristic patterns were found. Also, a review of the pathogenesis and some hypotheses are made. PD is a well-defined entity, which should be taken as a reactive arthritis for future studies given the increase in TB incidence and prevalence around the world, especially in high-burden countries.

Artritis reactiva secundaria a fiebre por mordedura de rata: reporte de un caso clínico / Reactive arthritis secondary to rat-bite fever: report on a clinical case

Caso clínico: Paciente de sexo masculino, de 69 años, sin otros antecedentes. Debuta con dolor en zona de la cadera derecha transitorio, evolucionando con cuadro de seis días de desarrollo de fiebre hasta 39,2ºC, calofríos, artralgias en tarso derecho, rodillas, hombros y astenia, por lo que fue hospitalizado. Al examen destacaba aumento de volumen doloroso en rodilla izquierda y hombro derecho. El estudio de líquido articular descartó artritis infecciosa y presencia de cristales intraarticulares. Los exámenes séricos mostraban parámetros inflamatorios alterados con leucocitosis, VHS y PCR elevados. Panel viral negativo. Sin otro foco inflamatorio evidente, se inició manejo antibiótico empírico con Ceftriaxona y Cloxacilina, con buena respuesta, mejorando su sintomatología y parámetros inflamatorios. Cultivos articulares negativos. El Gram de hemocultivos demostró la presencia de bacilos Gram negativos, aislando en los hemocultivos Streptobacillus moniliformis. El paciente evoluciona favorablemente, con regresión total de su cuadro articular. Discusión y conclusión: La Fiebre por Mordedura de Rata es una enfermedad sistémica que típicamente se presenta con fiebre, rash cutáneo y poliartralgias migratorias. Uno de sus principales agentes causales es el Streptobacillus moniliformis, que coloniza la nasofaringe de ratas y otros roedores. Casos aislados han sido reportados en Chile. En la Fiebre por Mordedura de Rata hasta un 50 por ciento de los pacientes desarrolla artritis con derrame articular o sin él. Puede afectar cualquier articulación, pero la más comúnmente comprometida es la rodilla. El dolor articular disminuye en las primeras tres semanas del uso de antibióticos, pero la articulación en ocasiones puede llegar a ser destruida. En sujetos sanos se han reportado tasas de mortalidad de 10 por ciento a 15 por ciento. Mientras todos los síntomas se resuelven puede haber recaídas con graves complicaciones, como meningitis, endocarditis...

Clinical case: Male patient, 69 years old and no previous record. First episode with transitory pain in the right hip zone, going on to 6 days of fever that evolves to 39.2 ºC, shivers, articular pain in the right tarsus, knees, shoulders and asthenia, so he was hospitalized. Upon examination, painful swellings of the left knee and right shoulder stood out. A study of synovial fluid ruled out infectious arthritis and presence of intra-articular crystals. Blood tests showed altered inflammatory parameters with high leukocytes, VHS and CRP. Negative viral panel. Without another evident inflammatory focus, an empirical management was initiated by means of antibiotics with Ceftriaxone y Cloxaciline, which had a good response relieving symptoms and inflammatory panels. Negative articular culturing. The blood culture Gram showed presence of negative Gram bacilli, with the isolation of Streptobacillus moniliformis in the blood cultures. Patient evolves favorably, with full regression of his articular symptoms. Discussion and conclusion: Rat-bite fever is a systemic sickness that typically presents itself with high fever, skin rash and migratory poly-articular pain. One of its main causing agents is the Streptobacillus moniliformis that colonize the nasopharynx of rats and other rodents. Isolated cases have been reported in Chile. In Rat-bite Fever up to 50 percent of patients develop arthritis with and without joint effusion. It may affect any joint, but that most commonly compromised is the knee. Articular pain subsides in the first 3 weeks of use of antibiotics, but the joint may sometimes even be destroyed. Mortality rates in healthy individuals have been reported at 10 percent to 15 percent. While all symptoms disappear there might be relapses with serious complications such as meningitis, endocarditis, myocarditis, pneumonia and fulminant sepsis that may cause the patient to die. Timely diagnose and treatment are paramount to avoid its serious...

Artrite de Poncet: relato de caso / Poncet's arthritis: case report

A doença de Poncet é uma condição clínica rara, caracterizada por um acometimento poliarticular em um paciente com diagnóstico de tuberculose, sem evidência de invasão direta do bacilo nas articulações, configurando uma artrite reativa. Documentamos um caso em Porto Alegre: um homem de 56 anos, com evidência de poliartrite aditiva de grandes articulações, investigada há 5 anos, sem diagnóstico definido. Ele havia sido submetido a uma nefrectomia unilateral há 5 anos, e o exame anatomopatológico do órgão revelou tuberculose renal. O teste tuberculínico atual revelou um forte reator (PPD = 20 mm). Análise do líquido sinovial não demonstrou invasão direta do bacilo. Foi instituído tratamento empírico com tuberculostáticos com remissão clínica após 2 meses. Embasados nesses dados, foi feito diagnóstico de doença de Poncet.

Poncet's disease is a rare clinical condition, characterized by polyarticular impairment in a patient diagnosed with tuberculosis, with no evidence of direct bacillary invasion of the joints, constituting reactive arthritis. We report a case of a 56-year old, white male from the city of Porto Alegre, with evidence of additive polyarthritis of the large joints, investigated for five years, and with no defined diagnosis. The patient had undergone unilateral nephrectomy five years before, and the anatomicopathological exam of the specimen revealed renal tuberculosis. The current tuberculin test was strongly reactive (PPD = 20 mm). Analysis of the synovial fluid showed no direct bacillary invasion. Tuberculostatic treatment was initiated and clinical remission occurred after two months. The diagnosis of Poncet's arthritis was established.

Poncet's arthritis: case report.

Poncet's disease is a rare clinical condition, characterized by polyarticular impairment in a patient diagnosed with tuberculosis, with no evidence of direct bacillary invasion of the joints, constituting reactive arthritis. We report a case of a 56-year old, white male from the city of Porto Alegre, with evidence of additive polyarthritis of the large joints, investigated for five years, and with no defined diagnosis. The patient had undergone unilateral nephrectomy five years before, and the anatomicopathological exam of the specimen revealed renal tuberculosis. The current tuberculin test was strongly reactive (PPD = 20 mm). Analysis of the synovial fluid showed no direct bacillary invasion. Tuberculostatic treatment was initiated and clinical remission occurred after two months. The diagnosis of Poncet's arthritis was established.

Differentiation of post-streptococcal reactive arthritis from acute rheumatic fever.

OBJECTIVE: To perform a retrospective study comparing clinical and laboratory aspects of patients with acute rheumatic fever (ARF) and patients with post-streptococcal reactive arthritis (PSRA), to discern whether these are 2 separate entities or varying clinical manifestations of the same disease. STUDY DESIGN: We located the records of 68 patients with ARF and 159 patients with PSRA, whose diseases were diagnosed with standardized criteria and treated by 8 pediatric rheumatologists in 7 medical centers, using the Israeli internet-based pediatric rheumatology registry. The medical records of these patients were reviewed for demographic, clinical, and laboratory variables, and the data were compared and analyzed with univariate, multivariate, and discriminatory analysis. RESULTS: Four variables were found to differ significantly between ARF and PSRA and serve also as predictors: sedimentation rate, C-reactive protein, duration of joint symptoms after starting anti-inflammatory treatment, and relapse of joint symptoms after cessation of treatment. A discriminative equation was derived that enabled us to correctly classify >80% of the patients. CONCLUSION: On the basis of simple clinical and laboratory variables, we were able to differentiate ARF from PSRA and correctly classify >80% of the patients. It appears that ARF and PSRA are distinct entities.

Detection of bacterial DNA in Latin American patients with reactive arthritis by polymerase chain reaction and sequencing analysis.

OBJECTIVE: Bacteria and/or their antigens are thought to play a role in the pathogenesis of reactive arthritis (ReA). Polymerase chain reaction (PCR) using the 16S ribosomal RNA-PCR method was used to identify bacterial DNA in synovial fluid (SF) and tissue (ST) in a well defined group of patients with chronic ReA. In addition, species found were identified by means of sequence analysis. METHODS: We examined 15 ST and 5 SF samples of 15 patients with ReA, 5 ST samples of 5 patients with osteoarthritis (OA), and 8 SF from 8 patients with closed traumatic knee injuries using a nested PCR with universal 16S rRNA primers. In addition, a nested PCR was developed to detect DNA sequences of Salmonella sp. and Mycoplasma sp. Automated sequencing and comparative data analysis (GenBank) were also performed to identify the species. RESULTS: Bacterial DNA was identified in 8 cases, 5 ST and 3 SF; Chlamydia trachomatis (n = 2), Pseudomonas sp. (n = 3), and Bacillus cereus (n = 2) were the most common microorganisms identified. A variety of microorganisms including Clostridium sp., Lactobacillus sp., Pseudomonas migulae, P. fluorescens, and P. putida, and Neisseria meningitidis serogroup B were also identified. In half of the cases (4/8) 2 to 3 bacterial antigens were identified simultaneously. CONCLUSION: Bacterial DNA is present in the joints in patients with chronic ReA. A wide spectrum of bacteria including some not previously associated with ReA were identified. Further studies are needed to establish their exact role in the pathogenesis of ReA and related arthritides.

Síndrome de Reiter: presentación de un caso y revisión de la literatura / Reiters syndrome: case report and literature review

Se comenta un caso de síndrome de Reiter en un paciente de 34 años HIV (-) con compromiso articular y cutáneo, observándose la tríada de uretritis no gonocóccica, conjuntivitis y artritis y la presencia de lesiones mucocutáneas como queratodermia blenorrágica y balanitis circinada. Se discute la etiología, epidemiología, diagnóstico y tratamiento de éste síndrome (AU)

Síndrome de Reiter / Reiters syndrome

Presentamos un caso de un paciente de 14 años de edad, de sexo masculino, en quien los hallazgos clínicos, histopatológicos y de laboratorio confirmaron el diagnóstico de síndrome de Reiter. Realizamos una extensa revisión bibliográfica, en la cual observamos que aún hoy se discuten pautas diagnósticas, mecanismos fisiopatogénicos, terapéutica y asociaciones de este síndrome, particularmente en aquellos pacientes en quienes no se manifiesta totalmente (AU)