Intravenous Thrombolysis for Pediatric Ischemic Stroke Secondary to Cancer Therapy-related Cardiac Dysfunction.

An 11-year-old boy developed cardioembolic stroke (CES) and cancer therapy-related cardiac dysfunction (CTRCD). He originally developed Ewing sarcoma and was treated with high-dose chemotherapy including doxorubicin. On admission, he had severe aphasia, and magnetic resonance imaging showed occlusion of the left middle cerebral artery M3 segment. Transthoracic echocardiography revealed severe left ventricular dysfunction and a mobile thrombus at the left ventricular apex. Intravenous thrombolysis was administered, and effective recanalization was achieved. The patient did not exhibit any neurological deficits during discharge. Reperfusion therapy for pediatric patients has not yet been established; however, it may be effective for CES secondary to CTRCD.