Ventricular Tachycardia Storm in a Patient Treated With Ibrutinib for Waldenstrom Macroglobulinemia

A 68-year-old Caucasian man with a history of Waldenstrom macroglobulinemia (WM) on treatment with ibrutinib for 2 years presented with syncope. He had no prior cardiovascular history or risk factors. On the day of presentation, he had an episode of dizziness followed by a sudden loss of