Background Patients with psoriatic arthritis (PsA) are at an increased risk for premature cardiovascular disease (CVD) independent of traditional risk factors . Endothelial dysfunction plays a central role in the development of accelerated atherosclerosis.
Objectives To evaluate endothelial dysfunction by assessment of artery endothelial-dependent flow-mediated dilation (FMD) and coronary flow reserve (CFR).
Methods 20 patients (12 males and 8 females – age 57,5 ±10,8 years) affected by PsA according to CASPAR criteria  were enrolled. The 10-years cardiovascular Framigham risk score was calculated. Ultrasound assessment of brachial artery FMD was performed according to Corretti et al. . CFR was evaluated by contrast-enhanced Doppler echocardiography and dipyridamole administration as previously described .
Results The 10-years cardiovascular Framingham risk score of PsA patients (mean 3.84 ± 3.22) was in the low risk range. The assessment of brachial artery FMD showed a significant reduction of post-ischemic vasodilation in PsA patients (mean -17.70 ± 16%) as compared with normal population (mean +15.00 ± 5%). Coronary flow reserve was under the normal range (CFR >2.5)  in 15/20 PsA patients.
Conclusions The present results demonstrate that PsA patients with low cardiovascular Framingham risk score have increased arterial stiffness and decreased coronary arteries flow reserve. These data suggest that endothelial dysfunction may underlie premature atherosclerosis in PsA patients
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Acknowledgement This work is supported by Pfizer
Disclosure of Interest None declared
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