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http://dx.doi.org/10.1007/s00277-023-05538-2DOI Listing

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Article Synopsis
  • Cold agglutinin-induced hemolytic anemia poses diagnostic challenges, especially in resource-limited settings like Pakistan, highlighted by a case of a 92-year-old male with severe anemia and altered consciousness.
  • Diagnosis was confirmed through positive Direct Coombs test and elevated cold agglutinin titers, demonstrating the importance of specific lab findings in identifying the condition.
  • Multidisciplinary management, including blood transfusions and immunosuppressive therapy, resolved the patient's symptoms, underscoring the need for enhanced clinician awareness and timely interventions for better patient outcomes.
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Cold agglutinins produced in the setting of B cell neoplasms, such as lymphoplasmacytic lymphoma and plasma cell myeloma, can mediate autoimmune haemolytic anemia. Transfusion of these patients can exacerbate cold agglutinin-mediated haemolysis. Moreover, the workup for these reactions represents a diagnostic challenge due in part to false negative direct antiglobulin tests (DATs).

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Cold agglutinin disease is a rare cause of arterial thrombosis leading to stroke, commonly encountered against a background of mycoplasma pneumonia infections. A 22-year-old patient presented with acute-onset left hemiplegia preceded by a short history of fever and cough. Magnetic resonance imaging (MRI) showed a right middle cerebral artery infarct.

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Background: Cold agglutinin disease can cause the agglutination of red blood cells and hemolytic anemia due to cold temperature. Herein, we report a case of progressive hemolytic anemia due to cold agglutinin disease during fluid resuscitation and in the absence of exposure to cold.

Case Presentation: A 71-year-old Japanese man was admitted to the emergency department with signs of hypotension and disturbed consciousness.

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