ONE INPERFORMANCE OF STANDARDIZED SCORES FOR DISEASE ASSESSMENT AND PAIN IN PATIENTS WITH SPONDYLOARTHRITIS AND FIBROMYALGIA
Authors: X. Baraliakos et al.
Pain is a common symptom in SpA as well as fibromyalgia (FM). This study analyzed patient reported outcomes (PRO) in patients with SpA with or without secondary FM and FM without inflammatory disease. 300 patients (100 SpA, 100 PsA, 100 FM) were recruited and PROs compared between the disease groups. Patients with FM, regardless of whether primary or secondary to SpA, had the highest scores in almost all of the assessed PROs, including BASDAI. Patients with axSpA or PsA without FM had lower scores than patients with secondary FM, except for ASDAS-CRP and duration of morning stiffness. However, ASDAS-CRP was also elevated in primary FM.
As we know from clinical experience, it is very hard to assess disease activity in patients with axSpA and secondary FM. This study confirms that the questionnaires used to assess activity of SpA result in higher scores when patients have secondary FM, with the exception of ASDAS-CRP, which may help in this situation, along with the duration of morning stiffness (question 6 of the BASDAI).
Moreover, FM specific scores are high in patients with axSpA with secondary FM but not without, which may additionally help to distinguish between the two groups.