• Anum Umer, Shoaib Bhatti, and Shafaq Jawed.
• Internal Medicine, The Indus Hospital, Karachi, PAK.
• Cureus. 2018 Oct 22; 10 (10): e3478.

AbstractSystemic lupus erythematosus (SLE) is a chronic autoimmune disease affecting multiple systems by the process of inflammation and formation of auto-antibodies. When it presents in childhood, it is referred to as childhood systemic lupus erythematosus (cSLE). Cardiac tamponade is a rare but potentially lethal complication of cSLE, even rarer as an initial presentation. Sub-acute cardiac tamponade (medical tamponade) is a non-emergent type of cardiac tamponade which develops slowly over time and does not necessarily present with acute distress. We present the case of an 11-year-old girl who presented to the emergency department with complaints of intermittent fever, periorbital puffiness, abdominal distension, and swelling on the hands and feet. She was not in any acute distress but was vitally unstable. Cardiovascular examination revealed muffled heart sounds. Chest examination further revealed decreased breathing sounds on the left side with dull notes on percussion. Abdominal examination revealed positive shifting dullness with a distended abdomen. Blood investigations were ordered which revealed anemia and thrombocytopenia. Chest X-ray showed an enlarged cardiac silhouette. Urine detailed report showed proteinuria and hematuria. Further investigations revealed the autoimmune root of the disease. Echocardiography was ordered which showed a large collection of fluid around the posterior aspect of heart with the concomitant collapse of atrial chambers suggestive of cardiac tamponade. A diagnosis of sub-acute cardiac tamponade secondary to childhood SLE was made. The patient was started on pulse therapy of methylprednisolone followed by a low-dose regime of mycophenolate mofetil. The patient was also provided with positive pressure ventilation, hemodialysis, and invasive cardiovascular monitoring along with the instillation of intravenous fluid supplements. To our knowledge, cases of sub-acute cardiac tamponade as the only and early clinical manifestation in childhood SLE are very rare.

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