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Sinus node dysfunction as an initial presentation of adult systemic lupus erythematosus
1Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan.
Lupus
|April 12, 2011
Summary
Systemic lupus erythematosus (SLE) can affect the heart, causing sinus node dysfunction and severe bradycardia in adults. Early cardiac monitoring is crucial for detecting this rare but serious SLE complication.
Area of Science:
- Cardiology
- Rheumatology
- Internal Medicine
Background:
- Cardiac involvement is a known complication of Systemic Lupus Erythematosus (SLE).
- Sinus node dysfunction presenting as profound sinus bradycardia has not been previously reported as an early manifestation in adult SLE.
Observation:
- A 27-year-old female with no prior health issues presented with fever and was diagnosed with SLE.
- During hospitalization, she developed profound sinus bradycardia (heart rate 41/min) and weakness.
- Electrocardiogram (ECG) abnormalities resolved completely following high-dose intravenous steroid treatment.
Findings:
- This case highlights sinus node involvement leading to significant bradycardia as a potential early complication in adult SLE.
- The patient's symptoms and ECG changes resolved with immunosuppressive therapy, suggesting an autoimmune etiology.
Implications:
- Clinicians should consider sinus node involvement and significant bradycardia in the differential diagnosis of early adult SLE presentations.
- Close cardiovascular monitoring and serial ECGs are recommended for early detection and management of this cardiac complication in SLE patients.
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