期刊
JOURNAL OF KOREAN MEDICAL SCIENCE
卷 37, 期 33, 页码 -出版社
KOREAN ACAD MEDICAL SCIENCES
DOI: 10.3346/jkms.2022.37.e253
关键词
Psoriatic Arthritis; Clinical Characteristics; Psoriatic Spondylitis; Ankylosing Spondylitis; Human Leukocyte Antigen B27; Disease-modifying Antirheumatic Drug
This study investigated the clinical characteristics of PsA patients in Korea and found that asymmetric oligoarthritis was the most common manifestation, and psoriatic spondylitis was common among Korean PsA patients.
Background: Clinical characteristics and manifestations of psoriatic arthritis (PsA) have been extensively studied in western countries, yet data of Korean patients with PsA are very limited. We aimed to investigate the clinical traits of patients with PsA and dissect the characteristics of those with axial involvement. Methods: In this observational study, we analyzed clinical data of 109 patients with PsA who were enrolled in the Korean College of Rheumatology Biologics and Targeted Therapy registry between December 2012 and March 2022 at the time point of initiating or switching to a biologic agent. Data from 2,221 patients with ankylosing spondylitis (AS) registered during the same period were also analyzed. We divided patients with PsA into patients with or without axial involvement and then added AS patients with psoriasis (total three subgroups) for comparative analyses. Results: Asymmetric oligoarthritis was the most common clinical manifestation in patients with PsA, followed by symmetric polyarthritis and spondylitis. Our analysis indicated that methotrexate and sulfasalazine were the two most prescribed disease-modifying antirheumatic drugs for patients with PsA before starting biologic therapy. The patients with psoriatic spondylitis had more peripheral joint involvement (P = 0.016), less prior uveitis (P < 0.001), and lower human leukocyte antigen B27 (HLA-B27) positivity (P < 0.001) than the AS patients with psoriasis. Furthermore, syndesmophytes and radiographic sacroiliitis were prevalent among patients with PsA and AS patients with psoriasis who had the HLA-B27 gene. Conclusion: Our study shows that the degree of peripheral arthritis is less severe in Korean patients with PsA who require biologics and reestablishes that psoriatic spondylitis is a common and important clinical pattern in Korean patients with PsA.
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