Subclinical carotid atherosclerosis in gouty patients: relation to musculoskeletal ultrasonographic findings and serum sclerostin level

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Objectives. To detect subclinical carotid atherosclerosis in gout patients and its relation to musculoskeletal ultrasound (MSK US) manifestations and serum sclerostin (SCL) levels. Patients and methods. Thirty Egyptian gouty patients were classified into two groups: Group A included 15 patients with diagnostic MSK US manifestations of gout (double contour sign), and Group B included 15 patients without MSK US findings. MSK US was done for both knees and the first MTP joints. Carotid duplex ultrasonography was done to evaluate carotid intima-media-thickness (CIMT) and serum SCL level was measured in all patients by ELISA technique. Results. Gouty patients with MSK US findings had a significantly higher increase in serum SCL levels than those without MSK US findings (p <0.01). Group A patients had a significantly greater CIMT than patients of group B (p <0.01). Serum uric acid and SCL levels were found to be significantly positively correlated. The ROC curve revealed that the optimal SCL cutoff value for detecting positive MSK US findings in gout patients was >25.05 ng/ml. At this level, there was a significant difference between the patients with a CIMT >0.9 mm and the patients with a CIMT ≤0.9 mm (p <0.05). Conclusions. Patients with MSK US manifestations of gout are more liable to have subclinical carotid atherosclerosis than patients without these manifestations. SCL at a certain level >25.05 ng/ml in gout patients might predispose patients to radiographic findings of MSK US of gout and subclinical atherosclerosis.

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