Psoriatic arthritis in patients with psoriasis: evaluation of clinical and epidemiological features in 133 patients followed at the University Hospital of Brasília

Abstract

BACKGROUND: Psoriatic arthritis is an inflammatory arthritis associated with psoriasis. Its prevalence in patients with psoriasis varies from 7 to 42% but its exact prevalence is unknown. OBJECTIVES: Considering the lack of national data related to its diagnosis in patients with psoriasis, this study aims to describe the clinical, laboratorial and radiological manifestations of psoriatic arthritis in these patients. METHODS: We evaluated 133 patients with psoriasis, treated as outpatients. These patients were asked to fill in the forms with data about the disease and were submitted to a clinical evaluation by a dermatologist and a rheumatologist. Suspected cases of arthritis were referred for further investigation and were classified according to presence or absence of psoriatic arthritis according to CASPAR criteria. RESULTS: The number of patients with psoriatic arthritis was 47 (35%), 17 of them were new cases. There was no difference between the groups regarding the type of psoriasis, nail involvement, presence of scalp lesions and psoriatic arthritis. Patients with psoriatic arthritis had more enthesitis and dactylitis (46.7%) than those without arthritis. CONCLUSIONS: Despite the high prevalence of arthritis found, we know that results from epidemiological studies are variable, which limits their use and interpretation. We conclude that more studies are needed to draw a profile of rheumatic manifestations in our population of psoriasis patients.

Screening for Psoriatic Arthritis in Korean Psoriasis Patients Using the Psoriatic Arthritis Screening Evaluation Questionnaire

“…Therefore, we performed physical, laboratory, and radiologic testing on all psoriasis patients to investigate the relationships of PsA and test results with PASE scores. The prevalences of dactylitis and sacroiliitis were significantly higher in patients with PsA, which is concordant with previous studies13,14. Therefore, dermatologists should be aware of these symptoms in suspected cases.…”

Prevalence of undiagnosed psoriatic arthritis among psoriasis patients: Systematic review and meta-analysis

“…Five studies obtained from the additional literature search on PsA screening questionnaires were added, for a final selection of 12 studies (Table I; In 7 of 12 studies, patients presented to a dermatologist first. 2,12,[15][16][17][18]21 Suspected arthritis was never mentioned to be a reason for presentation. In 7 of 12 studies, the final diagnosis was made by a senior rheumatologist 2,12,[15][16][17]21,22 ; in the 5 other studies, it was not stated who was responsible for the final diagnosis of PsA.…”

“…2,12,[15][16][17][18]21 Suspected arthritis was never mentioned to be a reason for presentation. In 7 of 12 studies, the final diagnosis was made by a senior rheumatologist 2,12,[15][16][17]21,22 ; in the 5 other studies, it was not stated who was responsible for the final diagnosis of PsA. 13,14,[18][19][20] CASPAR, GRAPPA, Moll and Wright criteria, as well as the rheumatologists' assessments were used to make the final diagnosis of PsA (Table I).…”

Metabolic syndrome and psoriatic arthritis among patients with psoriasis vulgaris: Quality of life and prevalence

“…This study demonstrated that the prevalence of PsA findings among Brazilian patients with PsO is in agreement with other investigations performed in Brazilian cohorts. Carneiro et al . and Ranza et al .…”