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Objective: The goal of treatment in palindromic rheumatism (PR) is to control the attacks and prevent disease evolution to chronic arthritis. Conventional synthetic disease-modifying antirheumatic drugs (csDMARDs) including antimalarial and methotrexate cannot control attacks in all patients., Methods: In this retrospective study, we assessed the efficacy of leflunomide in patients with PR who had an inadequate response to DMARDs. In this study, patients who had a diagnosis of PR and were treated with leflunomide because of active disease despite treatment with csDMARDs for at least 6 months were included. Remission was defined as no attacks for 3 months and prednisolone dose ≤5 mg/d. Leflunomide treatment failure was defined as failure to achieve remission, the need to add other DMARDs for controlling attacks and disease progression to chronic arthritis during treatment with leflunomide., Results: Ten cases with active disease despite treatment with hydroxychloroquine and methotrexate and low-dose prednisolone treated with leflunomide were included in the study. During the 12.6 ± 7.5 months of treatment with leflunomide, the frequency of attacks significantly decreased. Complete and partial remission were achieved in 90% of patients., Conclusion: Our results indicate that leflunomide controls PR attacks and it might be a new option for patients with PR., (© 2022 Asia Pacific League of Associations for Rheumatology and John Wiley & Sons Australia, Ltd.)

Objective: Palindromic rheumatism (PR) is characterized by self-resolving and short duration attacks of arthritis/periarthritis. The present study was performed to report the results of PR treatment with methotrexate (MTX)., Methods: We reviewed the charts of 152 patients with diagnosis of PR. Inclusion criteria were diagnosis of PR according to the criteria of Weismann, age ≥16, active disease and treatment with MTX for at least 6 months. Disease outcome was assessed by reaching remission and prevention of disease evolution to chronic arthritis. Remission was defined as stopping the attacks for 12 weeks and prednisolone dose ≤5 mg/d. MTX treatment failure was defined as failure to achieve remission, the need to add other disease-modifying antirheumatic drugs and disease progression to chronic arthritis., Results: Fifty-nine patients were included in the study. Median duration of follow-up was 43 months. Attacks were controlled in 89.8% of patients. In 80% of the patients remission occurred during 12 months after starting treatment with MTX. Treatment failed in 20.3% of patients. Wrist joint involvement and positive rheumatoid factor (RF) were significantly more common in the MTX treatment-failed group. In RF positive patients evolution to rheumatoid arthritis was more common than in RF negative patients. No significant differences were observed in remission rate and evolution to rheumatoid arthritis in anticitrullinated C peptide positive and negative patients., Conclusions: The present study, demonstrated the efficacy of MTX in controlling PR in seropositive and seronegative patients over a median of 43 months of treatment., (© 2022 Asia Pacific League of Associations for Rheumatology and John Wiley & Sons Australia, Ltd.)

Objective: Considering demographic, clinical and laboratory characteristics of palindromic rheumatism and finding out the difference between rheumatoid factor and anti-cyclic citrullinated peptide positive and negative cases of palindromic rheumatism in Iran., Methods: In this cross-sectional and multicenter study, patients with intermittent arthritis were evaluated by a rheumatologist for palindromic rheumatism. Diagnosis of palindromic rheumatism was made after ruling out other causes of recurrent arthritis, and the fulfillment of the Pasero and Barbieri criteria. Then the demographic and clinical characteristics were recorded and compared in rheumatoid factor and anti-cyclic citrullinated peptide positive and negative patients., Results: Of the 69 patients with palindromic rheumatism, 35 were men and 34 were women. The mean ages of the patients at the time of diagnosis were 38.5 ± 14.6 years. The mean attack intervals and duration of the attacks were 66.3 ± 38.4 days and 3.9 ± 3.3 days, respectively. The most commonly involved joints were knees, metacarpophalangeals and proximal interphalangeals. Rheumatoid factor in 46.4% and anti-cyclic citrullinated peptide in 42% of the cases were positive. Palindromic patients with positive anti-cyclic citrullinated peptide had higher age, shorter duration of disease, shorter duration of attacks, more frequent attacks and more metacarpophalangeal joints involvement., Conclusions: Rheumatoid factor and anti-cyclic citrullinated peptides were found in a high proportion of patients with palindromic rheumatism. The clinical features of the disease in our study were different in rheumatoid factor and anti-cyclic citrullinated peptide positive and negative patients., (© 2012 The Authors International Journal of Rheumatic Diseases © 2012 Asia Pacific League of Associations for Rheumatology and Wiley Publishing Asia Pty Ltd.)

Background: Selenium, like other trace elements and antioxidant enzymes, is known as an antioxidant and immunomodulator trace element. Due to recent evidence for selenium deficiency in Behcet's syndrome, this study is to evaluate the correlation of serum selenium level with Behcet's disease (BD)., Materials: This case-control study was conducted on 46 BD patients and 46 healthy controls in a rheumatology research centre. The case and control groups were both age- and race-matched. Serum selenium level was then measured by atomic absorption spectrometry Shimadzu AA-680. Average serum levels of both groups were then compared and analyzed using t-test., Results: Mean serum selenium levels of patients appeared to be 66.4 ± 15.38 μg/L which was significantly lower than that in the healthy controls (86.87 ± 17.18 μg/L) (P < 0.005). Taking physician global assessment of disease activity into account, significant difference was detected between the patients with active disease (66.57 ± 15.21 μg/L) and those in the inactive state (65.83 ± .75 μg/L). Regardless of the findings mentioned above, serum selenium level was meaningfully elevated among the patients with ocular involvement (P < 0.001)., Conclusions: These findings demonstrated that selenium serum level among BD patients was lower than that in healthy controls, whereas among the patients with ocular involvement it was higher than those not involved., (© 2011 The Authors. International Journal of Rheumatic Diseases © 2011 Asia Pacific League of Associations for Rheumatology and Blackwell Publishing Asia Pty Ltd.)