Spinal radiographic progression is correlated with preclinical atherosclerosis in spondyloarthritis

A higher prevalence of cardiovascular risk was observed in spondyloarthritis (SpA). The relationship between disease-related factors structural damage and subclinical atherosclerosis is still unknown.

The aim of our study was to evaluate the association of subclinical atherosclerosis with radiographic structural damage in patients with SpA.

Forty-seven SpA patients who fulfilled the ASAS criteria were enrolled in a case-control study conducted over 12 months and compared with 47 age and sex-matched healthy controls. None of the subjects had a previous history of cardiovascular diseases or cardiovascular risk factors. Demographic and disease characteristics were recorded. Structural lesions were evaluated using plain radiography, and two scoring tools were used to spine (BASRI and mSASSS). Subclinical atherosclerosis was assessed using ultrasound measurements of flow-mediated dilation (FMD) and carotid intima-media thickness (cIMT).

The median age of patients was 36 years. The sex ratio was 2.35. The median BASRI total score was 3 (IQR 2-4), median mSASSS score was 10 (IQR 415). cIMT was significantly increased in SpA patients compared to controls (p< 0.0001), and FMD was significantly lower in patients than in healthy subjects (p= 0.008). cIMT was significantly associated with ankylosis of the facet joints (p= 0.035) and Romanus spondylitis (p= 005). FMD was negatively associated with vertebral squaring (p= 0049), bridging syndesmophytes (p= 0031) and mSASSS score (p= 0.047).

Our result supports the association of radiographic structural damage and subclinical atherosclerosis assessed using cIMT and FMD. This finding highlights the importance of earlier treatment in order to prevent radiographic damage progression and atherosclerotic events.