Clinical Characteristics of Psoriatic Arthritis among Korean Patients with Psoriasis: A Single Center Experience / 대한피부과학회지

ABSTRACT

BACKGROUND: The prevalence and clinical characteristics of psoriatic arthritis (PsA) in patients with psoriasis are known to show ethnic variations. However, limited data exist regarding psoriatic arthritis in Korean psoriasis patients. OBJECTIVE: To investigate the clinical characteristics of PsA in Korean psoriasis patients. METHODS: Psoriasis patients diagnosed with psoriatic arthritis between 2011 and 2015 at a single center were included. Clinical characteristics of psoriasis/PsA, comorbidities, and treatment patterns were assessed via physical examination and medical records. RESULTS: Of 29 psoriasis patients diagnosed as having PsA, 20 were male and 9 were female (ratio 2.21), and mean age was 46.5 years. The oligoarthritis pattern was the most common manifestation of PsA. Changes in the nails, scalp involvement, and intergluteal involvement were found in 72.4%, 86.2%, and 53.8%, respectively. Methotrexate was the most common treatment modality for psoriasis and PsA, followed by non-steroidal anti-inflammatory drugs, biologics, and sulfasalazine. CONCLUSION: Our study presents the detailed clinical characteristics of PsA in Korean psoriasis patients. These results were similar to those of previous reports of patients in Korea, but the oligoarthritis pattern was more common in the present study.