SAT0340 Psa-disk, a novel visual instrument to assess the burden of disease in psoriatic arthritis patients

Background The assessment of joint disease in psoriasis (PsO) patients is paramount, particularly where consensus among dermatology and rheumatology specialists is necessary. Objectives To evaluate the prevalence of psoriatic arthritis (PsA) in PsO patients and assess how a novel 16-item visual instrument (PsA-Disk) correlates with the disease and its clinical manifestations. Methods Data were prospectively collected from 8 dermatological/rheumatological centres across Italy. During their first dermatological visit, patients completed both PEST (Psoriasis Epidemiology Screening Tool) and PsA-disk questionnaires. Rheumatological visit was performed in order to confirm presence/absence of PsA. Clinimetric and disease activity variables were recorded. Results From a total of 239 PsO patients, 120 (50.2%) patients were diagnosed with PsA. More PsA-positive patients had nail PsO (54.2% vs. 42%, p=0.05) and a PEST score ≥3 vs. PsA-negative patients (77.5% vs. 37.8%, p Conclusions PsA-Disk is a novel instrument helping both dermatologist and rheumatologist in the rapid assessment PsA, facilitating in the timely therapeutic management of these patients. Disclosure of Interest None declared