Asymptomatic Atherosclerosis in Primary Sjogren Syndrome: Correlation Between Low Ankle Brachial Index and Autoantibodies Positivity
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2016
Autores
Andreo Garcia, Ana Beatriz 
Dardin, Luciana Paula
Minali, Paulo Alexandre
Czapkowsky, Adriano
Ajzen, Sergio Aron
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Background Primary Sjogren syndrome is a chronic inflammatory autoimmune disease. The delay in diagnosis allows the establishment of a chronic inflammatory state, which makes primary Sjogren syndrome an interesting model for the study of atherosclerosis. Objectives The aim of this study was to evaluate subclinical atherosclerosis in 49 patients with Sjogren syndrome using noninvasive methods. Methods We assessed traditional risk factors such as hypertension, diabetes, dyslipidemia, smoking, and family history of atherosclerosis. Patients with prior cardiovascular events and a history of atherosclerosis were excluded. Clinical and laboratory features were recorded, as well as the European League Against Rheumatism Sjogren's Syndrome Activity Index calculation. The atherosclerosis evaluation was done by carotid intima-media thickness, measured by ultrasonography, and ankle-brachial index (ABI). Results Fifteen patients (31%) had at least 1 traditional risk factor, and 65.3% had a European League Against Rheumatism Sjogren's Syndrome Activity Index score from mild to moderate. Only 2 patients had increased carotid intima-media thickness. However, 59% presented ABI alterations. Multiple correspondence analysis showed a clear correlation between low ABI and the positivity of autoantibodies (antinuclear antibodies, anti-SSA, rheumatoid factor). Conclusions The subgroup of patients with positive autoantibodies showed low ABI, which may represent a higher risk of early atherosclerosis and indicate the need for more careful monitoring in this group.
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Jcr-Journal Of Clinical Rheumatology. Philadelphia, v. 22, n. 6, p. 295-298, 2016.