IBCC Episode 69 - Acute Promyelocytic Leukemia

This podcast addresses acute promyelocytic leukemia (APL), emphasizing the critical need for rapid diagnosis and treatment to prevent early hemorrhagic death. The discussion covers the pathophysiology of APL, focusing on the fusion protein that prevents promyelocytes from maturing, leading to both leukemia and severe DIC. Early treatment with all-trans retinoic acid (ATRA) is crucial, as it promotes cell differentiation and reduces DIC, though it can also trigger differentiation syndrome, a potentially fatal cytokine storm. The speakers highlight the importance of aggressive management of coagulation factors, particularly fibrinogen, and caution against invasive procedures due to bleeding risks. They also explore the use of arsenic trioxide, its benefits, and potential complications like Torsade de Pointes, as well as the risk of pseudotumor cerebri associated with ATRA treatment.