Abstract
Systemic lupus erythematous (SLE) is systemic autoimmune disease of unknown etiology. SLE involve all part of heart but clinically important myocarditis is an unusual feature and is potentially fatal complication of SLE. We describe the woman who had diagnosed as SLE, 5 years ago and in that time, she had sinus tachycardia, mild dyspnea, chest discomfort, and depressed left ventricular function. She was diagnosed to myocarditis clinically and was treated by high-dose corticosteroids of intravenous pulse methylprednisolone. After treatment, she improved and showed improvement of left ventricular function. However, a sudden pneumomediastinum was occurred without trauma, and she died. The cause of pneumomediastinum was unexplained. We report a sudden pneumomediastinum in the course of lupus myocarditis presenting as sinus tachycardia with review of literature.
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