Features associated with cardiac abnormalities in systemic lupus erythematosus

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 recognized complications of SLE, impacting prognosis and patient management.
• Echocardiographic assessment is crucial for evaluating cardiac structure and function in SLE patients.

Purpose of the Study:

• To determine the prevalence of echocardiographic abnormalities in a large cohort of patients with SLE.
• To identify clinical and laboratory features associated with these echocardiographic findings.

Main Methods:

• A transthoracic echocardiogram (TTE) was performed on 217 patients meeting ACR criteria for SLE.
• Data collected included demographics, lupus characteristics (duration, activity, damage index), comorbidities, medication use, and laboratory results.
• Multivariate logistic regression analysis was employed to identify determinants of TTE abnormalities.

Main Results:

• Mitral valve abnormalities (thickening, insufficiency) were the most frequent findings (37.3%).
• Other prevalent abnormalities included elevated pulmonary artery pressure (10.1%), pericardial effusion (4.6%), hypokinesis (2.8%), and aortic insufficiency (3.7%).
• Mitral insufficiency correlated with corticosteroid use, while elevated pulmonary artery pressure was associated with age and the SLE/ACR Damage Index.

Conclusions:

• Valvular heart disease, especially mitral valve lesions, is highly prevalent in SLE patients.
• Transthoracic echocardiogram screening is advisable for SLE patients.
• Identifying patients with risk factors like corticosteroid use can guide targeted screening and management strategies.