Autoimmune Haemolytic Anaemia, Acute Pericarditis with Cardiac Tamponade as Presenting Manifestations in Systemic Lupus Erythematosus- A Rare Case Report

Systemic Lupus Erythematosus (SLE) is an autoimmune disorder that affects mostly young women in which tissue-binding autoantibodies and immune complexes cause damage to organs and tissues. SLE is characterised by aberrant immunological responses that result in the release of higher levels and immunogenic nucleic acids, proteins, and other self-antigens. Autoimmune Haemolytic Anaemia (AIHA) is a condition in which antibodies against red blood cells are present. It is classified as a warm and cold antibody AIHA. The causes of warm antibody AIHA are autoimmune illnesses, infections, or even malignancy. The presence of Immunoglobulin G (IgG) antibodies can indicate warm autoimmune haemolytic anaemia (warm agglutinin anaemia), which is characterised by fatigue and other constitutional symptoms. Although, autoimmune haemolytic anaemia can be a component of the SLE spectrum, warm autoimmune haemolytic anaemia as the first manifestation of SLE is exceedingly rare. This case report describes a case of a 23-year-old female who presented to the hospital with complaints of breathlessness and chest pain. After evaluation she was found to have pericardial tamponade and AIHA. Pericardiocentesis was done and further investigations confirmed the diagnosis of SLE. She was treated with injectable methylprednisolone, injectable antibiotics, Tab. hydroxychloroquine, Tab. febuxostat ,Tab. colchicine, oral antidiuretic, oral levothyroxine and other supportive management. The lack of unambiguous pathognomonic characteristics or tests, coupled with the variable presentation of SLE, makes diagnosis tricky. Overall, AIHA can be an initial presentation as well as a part of other disease processes, emphasising the significance of a comprehensive work in patients with AIHA.