The performance of the 2019 EULAR/ACR classification criteria in childhood-onset systemic lupus erythematosus.

Objective: Classification criteria for systemic lupus erythematosus (SLE) are required to ensure consistency in enrolling patients into clinical trials. We aimed to evaluate the performance of the 2019 European League Against Rheumatism (EULAR)/American College of Rheumatology (ACR) criteria in patients with childhood-onset SLE (cSLE) by comparing its sensitivity and specificity with the 1997 ACR and the 2012 Systemic Lupus International Collaborating Clinics (SLICC) criteria.

Methods: Our study included 111 cSLE patients (82% female) for sensitivity analysis.

Comparison of the efficacy of physical examination and radiological imaging in detecting sacroiliitis in patients with juvenile spondyloarthropathies.

Objectives: To determine and compare the effectiveness of history, physical examination, conventional radiography and magnetic resonance imaging (MRI) in the detection of sacroiliitis in juvenile spondyloarthropathies.

Methods: One hundred and one patients with JSpA, 33 patients with other diseases and 24 children without rheumatologic complaints were included in the study. Subjects were evaluated using physical examination, laboratory findings, pelvic radiography and MRI.

Childhood-onset Takayasu arteritis: A 15-year experience from a tertiary referral center.

Aim: To describe clinical manifestations, angiographic findings, treatment, activity and damage of our Takayasu arteritis patients.

Method: The patients who met European League Against Rheumatism/Paediatric Rheumatology International Trials Organisation/Paediatric Rheumatology European Society classification criteria for childhood-onset Takayasu arteritis were reviewed in a retrospective longitudinal manner from 2002 to 2017. Extent of the disease was assessed by Disease Extent Index for Takayasu Arteritis (DEI.