Sinus node dysfunction in adult systemic lupus erythematosus flare: A case report.

Cardiac involvement can affect up to 50% of the systemic lupus erythematosus (SLE) patients but conduction system disturbances in SLE are less commonly described. For an early detection of this complication in the acute phase of SLE a whole cardiovascular examination and periodic electrocardiographic monitoring are recommended. We describe a patient who was diagnosed with flare up of lupus activity manifesting as sinus node dysfunction presenting as profound sinus bradycardia. She was successfully treated with high-dose methylprednisolone therapy.