Heart failure secondary to carfilzomib-induced heart block in multiple myeloma patients

Abstract

Carfilzomib is a proteasome inhibitor and immunomodulator used to treat patients with multiple myeloma who have disease progression refractory to bortezomib. The difference in agents is that carfilzomib is an irreversible inhibitor of 20 s proteasome. The most common side effects of carfilzomib are fatigue, nausea, diarrhea, anemia, thrombocytopenia, dyspnea, and pyrexia. Less frequent side effects include cardiac manifestations for which we will explore with more detail. In this case report, we describe a 70-year-old female with multiple myeloma presenting to the emergency department with complaint of dyspnea. Patient was discovered to be in heart failure with atrioventricular block necessitating placement of a pacemaker.

Keywords

Carfilzomib heart block heart failure emergency department oncologic emergency

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