AB0919

INFLUENCE OF ENTHESITIS PAIN ON ANKYLOSING SPONDYLITIS DISEASE ACTIVITY SCORE (ASDAS)

W. Hamdi ^1,*M. M. ghannouchi ¹I. zouch ¹M. M. kchir ¹

¹rheumatology, Kassab Institute, manouba, Tunisia

Background: Ankylosing spondylitis disease activity score (ASDAS) is a new disease activity index that didn’t include enthesitis pain assessment.  Correlation of ASDAS with enthesitis pain scores in patients hasn’t be investigated previously.

Objectives: To investigate correlation between the ASDAS and enthesitis pain assessed by the Maastricht ankylosing spondylitis enthesitis score (MASES) and visual analogical score (VAS).

Methods: A cross sectional study was conducted in our department of Rheumatology that includes 56 patients (45 male / 10 female)  with ankylosing spondylitis according to the modified New York criteria. Clinical data used for calculation of ASDAS, MASES and enthesitis pain VAS were collected. ASDAS formula B was used (calculated with erythrocyte sedimentation rate) [1].

Results: Patients mean age were 38,35 ± 11 years [16-73].  The mean ASDAS was 4,5 ± 2,3 [0,5-10,2]. The mean MASES was 3,4 ± 3,5 [0-13]. The mean VAS enthesitis pain was 5,6  ± 2,9 [0 -10] . ASDAS was positively correlated to MASES (r : 0.315 , p :0,033)  and to VAS enthesitis pain (r:0.273, p:0,042) [fig1].

Figure 1: Distribution of ASDAS, enthesitis VAS and MASES in patients with ankylosing spondylitis.

Conclusions: ASDAS is positively correlated to MASES and enthesitis pain VAS despite the fact that he didn’t include enthesitis assessment in his score

References: [1] C Lukas, R Landewe´, J Sieper, and al. Development of an ASAS-endorsed disease activity (ASDAS) in patients with ankylosing spondylitis.  Ann Rheum Dis 2009;68:18–24.

Disclosure of Interest: None Declared