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Cardiovascular abnormalities in systemic lupus erythematosus
Insights
Echocardiography revealed significant cardiac abnormalities in systemic lupus erythematosus (SLE) patients, including pericardial effusion and impaired left ventricular function. These findings were not linked to common clinical factors, highlighting the need for further cardiac monitoring in SLE.
Area of Science:
- Cardiology
- Rheumatology
- Medical Imaging
Background:
- Systemic lupus erythematosus (SLE) is a chronic autoimmune disease with potential multi-organ involvement.
- Cardiac manifestations are common in SLE but often subclinical.
- Echocardiography is a key noninvasive tool for assessing cardiac structure and function.
Purpose of the Study:
- To investigate the prevalence and spectrum of cardiac abnormalities in patients with SLE using echocardiography.
- To correlate echocardiographic findings with clinical and laboratory parameters in SLE patients.
Main Methods:
- Echocardiographic examinations were performed on 21 unselected patients with SLE.
- Cardiac parameters including pericardial effusion, pericardial thickness, left atrial and ventricular dimensions, ejection fraction, fractional shortening, and mitral valve closure velocity were assessed.
- Findings were compared to a control group and analyzed for correlations with hypertension, anemia, renal failure, protein levels, and disease duration.
Main Results:
- Significant abnormalities were detected in a majority of SLE patients.
- Pericardial effusion (24%) and thickened pericardium (29%) were observed.
- Enlarged left atrial and ventricular dimensions, reduced ejection fraction and fractional shortening, and slower mitral valve closure were noted compared to controls.
- No correlation was found between cardiac abnormalities and hypertension, anemia, renal failure, serum protein levels, or disease duration.
Conclusions:
- Echocardiography reveals a high prevalence of diverse cardiac abnormalities in SLE patients.
- These subclinical cardiac changes appear independent of common clinical and laboratory factors.
- Long-term follow-up using noninvasive techniques is crucial to understand the clinical implications of these echocardiographic findings in SLE.
Abstract:
Echocardiographic examinations of 21 unselected patients with systemic lupus erythematosus revealed a wide variety of abnormalities. The abnormalities consisted of substantial pericardial effusion in five patients (24%) and a thickened pericardium in six patients(29%); significantly larger left atrial and left ventricular dimensions and significantly smaller ejection fraction percentages, fractional shortening of the left ventricle, and rate of early diastolic mitral valve closure compared to that in a control group of subjects; and paradoxical and hypokinetic movement of the septum in one patient (5%) each. The presence of pericardial effusion and a thickened septum and a decrease in the ejection fraction percentage, fractional shortening of the left ventricle, and mitral valve diastolic closing velocity showed no correlation with previous hypertension, the presence or absence of anemia, renal failure, serum levels of proteins, and duration of patients' illnesses. Long-term follow-up studies to determine the implications of these subclinical cardiac abnormalities using noninvasive techniques (such as echocardiography) is vitally important.