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[Echocardiographic changes and anticardiolipin antibodies in patients with systemic lupus erythematosus]
Sai-dan Zhang1, Miao Wu, Feng Chen
1Department of Cardiology, Xiangya Hospital, Central South University, Changsha 410008, China. zhangsaidanli@126.com
Insights
Systemic lupus erythematosus (SLE) patients frequently exhibit echocardiographic abnormalities, particularly affecting heart valves and pericardium. Anticardiolipin antibodies (aCL) are more prevalent in SLE patients with valvular damage, suggesting a link to cardiac issues.
Area of Science:
- Cardiology
- Rheumatology
- Immunology
Context:
- Systemic lupus erythematosus (SLE) is a complex autoimmune disease with potential cardiac manifestations.
- Echocardiographic abnormalities and autoantibodies like anticardiolipin antibodies (aCL) are observed in SLE patients.
- The relationship between aCL and cardiac involvement in SLE requires further elucidation.
Purpose:
- To investigate echocardiographic abnormalities in SLE patients.
- To determine the prevalence of anticardiolipin antibodies (aCL) in SLE.
- To assess the association between aCL and cardiac valvular abnormalities in SLE.
Summary:
- Ninety SLE patients underwent echocardiography and aCL testing.
- Echocardiographic abnormalities were found in 53.33% of patients, with valvular (38.89%) and pericardial (34.44%) issues being most common.
- aCL prevalence was 32.56%, significantly higher in patients with valvular abnormalities (52.94%) compared to those without (19.23%).
Impact:
- Highlights the high incidence of cardiac abnormalities in SLE.
- Suggests anticardiolipin antibodies may play a role in the pathogenesis of valvular damage in SLE.
- Informs clinical monitoring and potential therapeutic strategies for cardiac complications in SLE.
Objective:
To analyze the echocardiographic abnormalities and the prevalence of anticardiolipin antibodies (aCL) in systemic lupus erythematosus (SLE) patients and to evaluate the relationship between aCL and cardiac valvular abnormalities in SLE patients.
Methods:
Ninety SLE patients were performed M-mode, 2-dimensional and Doppler echocardiography and aCL IgG and IgM were measured by an enzyme-linked immunosorbent assay (ELISA). According to the abnormalities in the echocardiography, the patients were assigned into valvular abnormality group and non-valvular abnormality group. Chi-square method was used to compare the difference of aCL prevalence between the two groups.
Results:
The prevalence of echocardiographic abnormalities was 53.33%, and valvular abnormality (38.89%) and pericardial effusion (34.44%) presented most frequently. The aCL prevalence was 32.56% in the 43 SLE patients. The prevalence of aCL in the valvular abnormality group was significantly higher than that in non-valvular abnormality group (52.94% vs 19.23%, P<0.05).
Conclusion:
The incidence of echocardiographic abnormalities is high in SLE patients, most often in valves and pericardium. The aCL is probably related to valvular damage in SLE patients.
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