• Lupus · Apr 2016

    Assessment of premature atherosclerosis in systemic lupus erythematosus patients with and without nephritis.

    • S K Sharma, M Rathi, S Sahoo, M Prakash, V Dhir, and S Singh.
    • Department of Internal Medicine, Post Graduate Institute of Medical Education and Research, Chandigarh, India sharmashefali@hotmail.com.
    • Lupus. 2016 Apr 1; 25 (5): 525-31.

    BackgroundRisk of subclinical atherosclerosis is increased in patients with systemic lupus erythematosus (SLE). We correlated carotid intima media thickness (CIMT) and endothelial dysfunction through flow-mediated dilation (FMD) in SLE patients with the SLE Disease Activity Index (SLEDAI).MethodsThis single-centre cross-sectional study recruited 100 consenting SLE outpatients (ACR 1997 criteria) out of which 50 had nephritis, with disease duration of ≥2 years for SLE and ≥6 months for lupus nephritis. We measured baseline laboratory levels, CIMT and FMD (after brachial BP cuff inflation up to 200 mmHg for five minutes), and calculated SLEDAI.ResultsMean age was 29.88 ± 6.53 years; 95/100 were female. CIMT showed positive correlation (p = 0.037; rho = 0.209), and FMD showed inverse correlation with patient's age (p = 0.011; rho = -0.252). CIMT and FMD were more deranged in patients aged ≥25 years (p < 0.05). CIMT was not significantly different between SLE patients with and without nephritis (p > 0.05), whereas SLEDAI and FMD were more deranged in nephritis patients (p < 0.05). In patients without nephritis, FMD showed significant inverse correlation with disease duration (p = 0.043; rho = -0.288) and urine albumin (p = 0.045; rho = -0.285). In nephritis patients, the correlation between age of the patient was significantly positive with CIMT (p = 0.001; rho = 0.441) and significantly inverse with FMD (p = 0.028; rho = -0.312).ConclusionSLE patients with nephritis are at a higher risk to develop arterial stiffening, leading to early end-organ damage. Early aggressive treatment may prevent endothelial dysfunction. FMD using vascular ultrasonography on the brachial artery represents a non-invasive, repeatable and useful method for the assessment of endothelial dysfunction.© The Author(s) 2015.

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