Right heart thrombus-in-transit in a patient with Evans syndrome: A case report

Diagnostic and Therapeutic Strategies in Evans Syndrome: A Case Report and Literature Review

Evans syndrome (ES) is characterized by a combination of autoimmune hemolytic anemia (AIHA) and immune thrombocytopenia (ITP). Immune dysregulation, which results in the development of antibodies against blood cells, is its defining feature. ES being a diagnosis of exclusion requires a thorough workup to rule out other probable illnesses like lymphoproliferative diseases and systemic lupus erythematosus (SLE). We present the case of a 38-year-old male who experienced shortness of breath, chest discomfort, and generalized weakness. His medical history included recurrent anemia, thrombocytopenia, and pulmonary tuberculosis in remission. Hemolysis, thrombocytopenia, and a large pericardial effusion were discovered during the physical examination and investigations. An initial treatment strategy that included pericardiocentesis was performed. In combination with AIHA and ITP, the clinical and laboratory findings strongly suggested ES, which improved with prednisolone therapy. First-line treatments consist of corticosteroids and intravenous immunoglobulin; refractory cases may also require rituximab, thrombopoietin receptor antagonists, and sirolimus. Achieving remission and lowering relapse rates need careful patient monitoring and customized treatment programs.

A Proposed Approach for the Management of Clot-in-Transit

Clot-in-transit (CIT) is defined as a mobile echogenic material in the right atrium or ventricle as observed on ultrasound. A right heart free-floating thrombus is unusual when there is no structural disease of the heart or atrial fibrillation. Cardiopulmonary collapse and quick death can come from CIT, which occurs when a blood clot moves from the heart to the lungs. There are some clinical case reports of a large volume thrombus that was freely floating in the right heart in an asymptomatic patient, and the best therapeutic options are uncertain. Although several trials have been conducted on the treatment of CIT, clinical judgment is still used to determine the best treatment for right heart thrombus (RHT), especially when associated with pulmonary embolism (PE). In this review article, we discuss various diagnostic modalities and treatment options for this rare malady. We studied in detail their clinical impact on patients according to past research studies.